Commit Graph

290 Commits

Author SHA1 Message Date
Eduardo Habkost
3a6ce5147f accel: Move qtest accel registration to qtest.c
As qtest_availble() returns 1 only when CONFIG_POSIX is set, keep
setting AccelClass.available to keep current behavior (this is different
from what we did for KVM and Xen).

This also allows us to make qtest_init_accel() static.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-04 08:59:15 +02:00
Eduardo Habkost
782c3f2939 accel: Move KVM accel registration to kvm-all.c
Note that this has an user-visible side-effect: instead of reporting
"KVM is not supported for this target", QEMU binaries not supporting KVM
will report "kvm accelerator does not exist".

As kvm_availble() always return 1 when CONFIG_KVM is enabled, we don't
need to set AccelClass.available anymore. kvm_enabled() is not being
completely removed yet only because qmp_query_kvm() still uses it.

This also allows us to make kvm_init() static.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-04 08:59:15 +02:00
Eduardo Habkost
b14a0b7469 accel: Use QOM classes for accel types
Instead of having a static AccelType array, register a class for each
accelerator type, and use class name lookup to find accelerator
information.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-04 08:59:15 +02:00
Eduardo Habkost
a1a9cb0ccd accel: Move accel code to accel.c
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-04 08:59:15 +02:00
John Snow
d8f94e1bb2 ide: Update ide_drive_get to be HBA agnostic
Instead of duplicating the logic for the if_ide
(bus,unit) mappings, rely on the blockdev layer
for managing those mappings for us, and use the
drive_get_by_index call instead.

This allows ide_drive_get to work for AHCI HBAs
as well, and can be used in the Q35 initialization.

Lastly, change the nature of the argument to
ide_drive_get so that represents the number of
total drives we can support, and not the total
number of buses. This will prevent array overflows
if the units-per-default-bus property ever needs
to be adjusted for compatibility reasons.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1412187569-23452-5-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-10-03 10:30:33 +01:00
John Snow
21dff8cf38 blockdev: Allow overriding if_max_dev property
The if_max_devs table as in the past been an immutable
default that controls the mapping of index => (bus,unit)
for all boards and all HBAs for each interface type.

Since adding this mapping information to the HBA device
itself is currently unwieldly from the perspective of
retrieving this information at option parsing time
(e.g, within drive_new), we consider the alternative
of marking the if_max_devs table mutable so that
later configuration and initialization can adjust the
mapping at will, but only up until a drive is added,
at which point the mapping is finalized.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1412187569-23452-3-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-10-03 10:30:33 +01:00
John Snow
a66c9dc734 blockdev: Orphaned drive search
When users use command line options like -hda, -cdrom,
or even -drive if=ide, it is up to the board initialization
routines to pick up these drives and create backing
devices for them.

Some boards, like Q35, have not been doing this.
However, there is no warning explaining why certain
drive specifications are just silently ignored,
so this function adds a check to print some warnings
to assist users in debugging these sorts of issues
in the future.

This patch will not warn about drives added with if_none,
for which it is not possible to tell in advance if
the omission of a backing device is an issue.

A warning in these cases is considered appropriate.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1412187569-23452-2-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-10-03 10:30:33 +01:00
Peter Maydell
0ebcc56453 Block patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block patches

# gpg: Signature made Fri 26 Sep 2014 19:57:52 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  qemu-iotests: Fail test if explicit test case number is unknown
  block: Validate node-name
  vpc: fix beX_to_cpu() and cpu_to_beX() confusion
  docs: add blkdebug block driver documentation
  block: Catch simultaneous usage of options and their aliases
  block: Specify -drive legacy option aliases in array
  block: Improve message for device name clashing with node name
  qemu-nbd: Destroy the BlockDriverState properly
  block: Keep DriveInfo alive until BlockDriverState dies
  blockdev: Disentangle BlockDriverState and DriveInfo creation
  blkdebug: show an error for invalid event names

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29 12:26:15 +01:00
Peter Maydell
81ab11a7a5 Usual mix of patches, the most important being Alex and Marcelo's
kvmclock fix.  This was reverted last minute for 2.1, but it is now back
 with the problematic case fixed.
 
 Note: I will soon switch to a subkey for signing purposes.  To verify
 future signed pull requests from me, please update my key with
 "gpg --recv-keys 9B4D86F2".  You should see 3 new subkeys---the
 one for signing will be a 2048-bit RSA key, 4E6B09D7.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Usual mix of patches, the most important being Alex and Marcelo's
kvmclock fix.  This was reverted last minute for 2.1, but it is now back
with the problematic case fixed.

Note: I will soon switch to a subkey for signing purposes.  To verify
future signed pull requests from me, please update my key with
"gpg --recv-keys 9B4D86F2".  You should see 3 new subkeys---the
one for signing will be a 2048-bit RSA key, 4E6B09D7.

# gpg: Signature made Fri 26 Sep 2014 15:34:44 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg:                 aka "Paolo Bonzini <bonzini@gnu.org>"

* remotes/bonzini/tags/for-upstream:
  kvm/valgrind: don't mark memory as initialized
  po: fix conflict with %.mo rule in rules.mak
  kvmvapic: fix migration when VM paused and when not running Windows
  serial: check if backed by a physical serial port at realize time
  serial: reset state at startup
  target-i386: update fp status fix
  hw/dma/i8257: Silence phony error message
  kvmclock: Ensure time in migration never goes backward
  kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation
  Introduce cpu_clean_all_dirty
  pit: fix pit interrupt can't inject into vm after migration

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-26 15:41:50 +01:00
Markus Armbruster
3ae59580a0 block: Keep DriveInfo alive until BlockDriverState dies
If the BDS's refcnt > 0, drive_del() destroys the DriveInfo, but not
the BDS.  This can happen in three places:

* Device model destruction during unplug: blockdev_auto_del()

* Xen IDE unplug: pci_piix3_xen_ide_unplug()

* drive_del command when no device model is attached: do_drive_del()

The other callers of drive_del are on error paths where refcnt == 1.

If the user somehow manages to plug in a device model using a BDS that
has gone through drive_del(), the legacy configuration passed in
DriveInfo doesn't reach the device model, and automatic deletion on
unplug doesn't work.  Worse, some device models such as scsi-disk
crash when DriveInfo doesn't exist.

This is theoretical; I didn't research an actual reproducer. The problem
was introduced when we replaced DriveInfo reference counting by BDS
reference counting in commit a94a3fa..fa510eb.

Fix by keeping DriveInfo alive until its BDS dies.

This affects qemu_drive_opts: now you can't reuse the same ID for new
drive options until the BDS dies.  Before, you could, but since the
code always attempts to create a BDS with the same ID next, the
enclosing operation "create a new drive" failed anyway.  Different
error path, same result.

Unfortunately, the fix involves use of blockdev.c stuff from block.c,
which is a layering violation.  Fortunately, my forthcoming
BlockBackend work will get rid of it again.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-09-25 15:24:14 +02:00
Bastian Koppelmann
7e3d523883 arch_init: Setting QEMU_ARCH enum straight
Every QEMU_ARCH is now in (1 << n) notation, instead of a mixture of decimal and hexadecimal.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-09-22 12:09:43 +04:00
Peter Maydell
e4d50d47a9 qemu-char: Rename register_char_driver_qapi() to register_char_driver()
Now we have removed the legacy register_char_driver() we can
rename register_char_driver_qapi() to the more obvious and
shorter name.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1409653457-27863-6-git-send-email-peter.maydell@linaro.org
2014-09-16 23:36:32 +01:00
Peter Maydell
a61ae7f88c qemu-char: Remove register_char_driver() machinery
Now that all the char backends have been converted to the QAPI
framework we can remove the machinery for handling old style
backends.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1409653457-27863-5-git-send-email-peter.maydell@linaro.org
2014-09-16 23:36:32 +01:00
Marcelo Tosatti
de9d61e83d Introduce cpu_clean_all_dirty
Introduce cpu_clean_all_dirty, to force subsequent cpu_synchronize_all_states
to read in-kernel register state.

Cc: qemu-stable@nongnu.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-16 11:04:09 +02:00
Benoît Canet
5e5a94b605 block: Extract the block accounting code
The plan is to add new accounting metrics (latency, invalid requests, failed
requests, queue depth) and block.c is overpopulated so it will be better to work
in a separate module.

Moreover the long term plan is to have statistics in each of the BDS of the graph
for metrology purpose; this means that the device model statistics must move from
the topmost BDS to the device model.

So we need to decouple the statistic code from BlockDriverState.

This is another argument for the extraction of the code in a separate module.

CC: Kevin Wolf <kwolf@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Eric Blake <eblake@redhat.com>
CC: Benoit Canet <benoit@irqsave.net>
CC: Fam Zheng <famz@redhat.com>
CC: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
CC: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: Benoît Canet <benoit.canet@nodalink.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-09-10 10:41:29 +02:00
Alexander Graf
7d0a07fa92 KVM: Add helper to run KVM_CHECK_EXTENSION on vm fd
We now can call KVM_CHECK_EXTENSION on the kvm fd or on the vm fd, whereas
the vm version is more accurate when it comes to PPC KVM.

Add a helper to make the vm version available that falls back to the non-vm
variant if the vm one is not available yet to stay compatible.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-09-08 12:50:51 +02:00
Bastian Koppelmann
48e06fe0ed target-tricore: Add target stubs and qom-cpu
Add TriCore target stubs, and QOM cpu, and Maintainer

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-id: 1409572800-4116-2-git-send-email-kbastian@mail.uni-paderborn.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-01 14:49:20 +01:00
Stefan Berger
711b20b479 Add ACPI tables for TPM
Add an SSDT ACPI table for the TPM device.
Add a TCPA table for BIOS logging area when a TPM is being used.

The latter follows this spec here:

http://www.trustedcomputinggroup.org/files/static_page_files/DCD4188E-1A4B-B294-D050A155FB6F7385/TCG_ACPIGeneralSpecification_PublicReview.pdf

This patch has Michael Tsirkin's patches folded in.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2014-08-25 00:16:06 +02:00
Paolo Bonzini
5692399f0a backends: Introduce chr-testdev
From: Paolo Bonzini <pbonzini@redhat.com>

chr-testdev enables a virtio serial channel to be used for guest
initiated qemu exits. hw/misc/debugexit already enables guest
initiated qemu exits, but only for PC targets. chr-testdev supports
any virtio-capable target. kvm-unit-tests/arm is already making use
of this backend.

Currently there is a single command implemented, "q".  It takes a
(prefix) argument for the exit code, thus an exit is implemented by
writing, e.g. "1q", to the virtio-serial port.

It can be used as:
   $QEMU ... \
     -device virtio-serial-device \
     -device virtserialport,chardev=ctd -chardev testdev,id=ctd

or, use:
   $QEMU ... \
     -device virtio-serial-device \
     -device virtconsole,chardev=ctd -chardev testdev,id=ctd

to bind it to virtio-serial port0.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:05 +02:00
Kirill Batuzov
812c1057f6 Handle G_IO_HUP in tcp_chr_read for tcp chardev
Since commit cdaa86a54b
("Add G_IO_HUP handler for socket chardev")
GLib limitation results in a bug on Windows host. Steps to reproduce:

Start qemu: qemu-system-i386 -qmp tcp:127.0.0.1:4444:server:nowait
Connect with telnet: telnet 127.0.0.1 4444
Try sending some data from telnet.
Expected result: answers from QEMU.
Observed result: no answers (actually tcp_chr_read is not called at all).

Due to GLib limitations it is not possible to create several watches on one
channel on Windows hosts. See bug #338943 in GNOME bugzilla for details:
https://bugzilla.gnome.org/show_bug.cgi?id=338943

This reimplements commit cdaa86a54b
("Add G_IO_HUP handler for socket chardev") using a single watch:

Handle G_IO_HUP in tcp_chr_read instead. It is already watched by a
corresponding watch.  Remove the second watch with its handler.

Cc: Antonios Motakis <a.motakis@virtualopensystems.com>
Cc: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: Nikita Belov <zodiac@ispras.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-07-06 09:13:54 +03:00
Eduardo Habkost
1af878e049 numa: Keep track of NUMA nodes present on the command-line
Based on "enable sparse node numbering" patch from Nishanth Aravamudan,
but without the code to actually support sparse node IDs. This just adds
the code to keep track of present/non-present nodes on the command-line,
without changing any behavior.

Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
[Rename max_numa_node to max_numa_nodeid -Eduardo]
[Initialize max_numa_nodeid to 0 -Eduardo]
[Use MAX() macro when setting max_numa_nodeid -Eduardo]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2014-06-29 18:59:41 +03:00
Paolo Bonzini
9005b2a758 qemu-char: make writes thread-safe
This will let threads other than the I/O thread raise QMP events.

GIOChannel is thread-safe, and send and receive state is usually
well-separated.  The only driver that requires some care is the
pty driver, where some of the state is shared by the read and write
sides.  That state is protected with the chr_write_lock too.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23 11:12:28 -04:00
Paolo Bonzini
db39fcf1f6 qemu-char: introduce qemu_chr_alloc
The next patch will modify this function to initialize state that is
common to all backends.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23 11:12:28 -04:00
Wenchao Xia
aef9d3115f qapi event: convert BALLOON_CHANGE
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23 11:12:28 -04:00
Wenchao Xia
e010ad8f1e qapi event: convert RTC_CHANGE
This patch also eliminates build time warning caused by no caller
of monitor_qapi_event_throttle().

Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23 11:12:27 -04:00
Wenchao Xia
506f40ff7d os-posix: include sys/time.h
Since gettimeofday() is used in this header file as a macro define,
include the function's define header file, to avoid compile warning
when other file include os-posix.h.

Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23 11:01:24 -04:00
Peter Maydell
d9c1647d89 Block pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Block pull request

# gpg: Signature made Mon 23 Jun 2014 09:53:49 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/block-pull-request:
  block: asynchronously stop the VM on I/O errors
  vl: allow other threads to do qemu_system_vmstop_request
  sheepdog: fix NULL dereference in sd_create
  QemuOpts: check NULL opts in qemu_opt_get functions
  block: m25p80: Support read only bdrvs.
  block: m25p80: sync_page(): Deindent function body.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-23 12:55:22 +01:00
Michael S. Tsirkin
3840f84290 console: move chardev declarations to sysemu/char.h
move generic chardev APIs to sysemu/char.h, to make them available to
callers which can not depend on the whole of ui/console.h.
This fixes a build error on systems without pixman-devel:

./configure --disable-tools --disable-docs --target-list=arm-linux-user
...
pixman            none
...
make
...
In file included from
/data/home/nchip/linaro/qemu/include/ui/console.h:4:0,
                 from /data/home/nchip/linaro/qemu/stubs/vc-init.c:2:
/data/home/nchip/linaro/qemu/include/ui/qemu-pixman.h:14:20: fatal
error: pixman.h: No such file or directory
 #include <pixman.h>
                    ^
compilation terminated.

Reported-by: Riku Voipio <riku.voipio@iki.fi>
Tested-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1403508500-32691-1-git-send-email-mst@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-23 10:56:20 +01:00
Paolo Bonzini
74892d2468 vl: allow other threads to do qemu_system_vmstop_request
There patch protects vmstop_requested with a lock and introduces
qemu_system_vmstop_request_prepare.

Together with the new call to qemu_vmstop_requested in vm_start,
qemu_system_vmstop_request_prepare avoids a race where the VM could remain
stopped even though the iostatus of a block device has already been set
(for example).

qemu_system_vmstop_request_prepare however also lets the caller thread
delay observation of the state change until it has itself communicated
that change to the user.  This delay avoids any possibility of a wrong
reordering of the BLOCK_IO_ERROR event and the subsequent STOP event.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-23 16:36:13 +08:00
Peter Maydell
d70a319b8d Merge remote-tracking branch 'remotes/kvm/uq/master' into staging
* remotes/kvm/uq/master:
  hw/mips: malta: Don't boot from flash with KVM T&E
  MAINTAINERS: Add entry for MIPS KVM
  target-mips: Enable KVM support in build system
  hw/mips: malta: Add KVM support
  hw/mips: In KVM mode, inject IRQ2 (I/O) interrupts via ioctls
  target-mips: Call kvm_mips_reset_vcpu() from mips_cpu_reset()
  target-mips: kvm: Add main KVM support for MIPS
  kvm: Allow arch to set sigmask length
  target-mips: get_physical_address: Add KVM awareness
  target-mips: get_physical_address: Add defines for segment bases
  hw/mips: Add API to convert KVM guest KSEG0 <-> GPA
  hw/mips/cputimer: Don't start periodic timer in KVM mode
  target-mips: Reset CPU timer consistently
  KVM: Fix GSI number space limit

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-20 19:25:18 +01:00
Hu Tao
4cf1b76bf1 hostmem: add properties for NUMA memory policy
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
[Raise errors on setting properties if !CONFIG_NUMA.  Add BUILD_BUG_ON
 checks. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:21 +03:00
Paolo Bonzini
a35ba7be4b hostmem: allow preallocation of any memory region
And allow preallocation of file-based memory even without -mem-prealloc.
Some care is necessary because -mem-prealloc does not allow disabling
preallocation for hostmem-file.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:20 +03:00
Paolo Bonzini
605d0a945d hostmem: add merge and dump properties
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:20 +03:00
Hu Tao
bd9262d95f hostmem: separate allocation from UserCreatable complete method
This allows the superclass to set various policies on the memory
region that the subclass creates. Drops hostmem-ram's complete method
accordingly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:20 +03:00
Paolo Bonzini
7febe36f9a numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes.  For example:

 -object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
 -numa node,nodeid=0,cpus=0,memdev=ram-node0 \
 -object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
 -numa node,nodeid=1,cpus=1,memdev=ram-node1

The option replaces "-numa node,mem=".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>

MST: conflict resolution
2014-06-19 18:44:19 +03:00
Paolo Bonzini
38183310be memory: move preallocation code out of exec.c
So that backends can use it.

Since we need the page size for efficiency, move code to compute it
out of translate-all.c and into util/oslib-win32.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:19 +03:00
Paolo Bonzini
e1c57ab86f memory: reorganize file-based allocation
Split the internal interface in exec.c to a separate function, and
push the check on mem_path up to memory_region_init_ram.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:19 +03:00
Paolo Bonzini
dfabb8b916 numa: introduce memory_region_allocate_system_memory
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

MST: resolve conflicts
2014-06-19 18:44:19 +03:00
Wanlong Gao
45e30bf3a9 NUMA: expand MAX_NODES from 64 to 128
libnuma choosed 128 for MAX_NODES, so we follow libnuma here.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:18 +03:00
Wanlong Gao
0042109a6a NUMA: convert -numa option to use OptsVisitor
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:18 +03:00
Wanlong Gao
8c85901ed3 NUMA: Add numa_info structure to contain numa nodes info
Add the numa_info structure to contain the numa nodes memory,
VCPUs information and the future added numa nodes host memory
policies.

Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
[Fix hw/ppc/spapr.c - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 18:44:18 +03:00
Wanlong Gao
96d0e26c23 NUMA: move numa related code to new file numa.c
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>

MST: comment tweaks
2014-06-19 18:44:18 +03:00
Nikolay Nikolaev
cdaa86a54b Add G_IO_HUP handler for socket chardev
This is used to detect that the remote end has disconnected. Just call
tcp_char_disconnect on receiving this event.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:55 +03:00
Nikolay Nikolaev
c76bf6bb8f Add chardev API qemu_chr_fe_get_msgfds
This extends the existing qemu_chr_fe_get_msgfd by allowing to read a set
of fds. The function for receiving the fds - unix_process_msgfd is extended
to allocate the needed array size.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:55 +03:00
Nikolay Nikolaev
d39aac7aac Add chardev API qemu_chr_fe_set_msgfds
This will set an array of file descriptors to the internal structures.
The next time a message is send the array will be send as ancillary
data. This feature works on the UNIX domain socket backend only.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:54 +03:00
Nikolay Nikolaev
7b0bfdf52d Add chardev API qemu_chr_fe_read_all
This function will attempt to read data from the chardev trying
to fill the buffer up to the given length.
Add tcp_chr_disconnect to reuse disconnection code where needed.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:54 +03:00
Nikolay Nikolaev
69e03ae64b Add kvm_eventfds_enabled function
Add a function to check if the eventfd capability is present in KVM in
the host kernel.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-19 16:41:54 +03:00
Igor Mammedov
1f07048933 add memdev backend infrastructure
Provides framework for splitting host RAM allocation/
policies into a separate backend that could be used
by devices.

Initially only legacy RAM backend is provided, which
uses memory_region_init_ram() allocator and compatible
with every CLI option that affects memory_region_init_ram().

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-18 21:10:30 +03:00
James Hogan
aed6efb90c kvm: Allow arch to set sigmask length
MIPS/Linux is unusual in having 128 signals rather than just 64 like
most other architectures. This means its sigmask is 16 bytes instead of
8, so allow arches to override the sigmask->len value passed to the
KVM_SET_SIGNAL_MASK ioctl in kvm_set_signal_mask() by calling
kvm_set_sigmask_len() from kvm_arch_init(). Otherwise default to 8
bytes.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Sanjay Lal <sanjayl@kymasys.com>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-18 16:58:43 +02:00
Peter Maydell
af44da87e9 Patch queue for ppc - 2014-06-16
This pull request brings a lot of fun things. Among others we have
 
   - e500: u-boot firmware support
   - sPAPR: magic page enablement
   - sPAPR: add "compat" CPU option to support older guests
   - sPAPR: refactorings in preparation for VFIO
   - POWER8 live migration
   - mac99: expose bus frequency
   - little endian core dump, gdb and disas support
   - new ppc64le-linux-user target
   - DFP emulation
   - bug fixes
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Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging

Patch queue for ppc - 2014-06-16

This pull request brings a lot of fun things. Among others we have

  - e500: u-boot firmware support
  - sPAPR: magic page enablement
  - sPAPR: add "compat" CPU option to support older guests
  - sPAPR: refactorings in preparation for VFIO
  - POWER8 live migration
  - mac99: expose bus frequency
  - little endian core dump, gdb and disas support
  - new ppc64le-linux-user target
  - DFP emulation
  - bug fixes

# gpg: Signature made Mon 16 Jun 2014 12:28:32 BST using RSA key ID 03FEDC60
# gpg: Can't check signature: public key not found

* remotes/agraf/tags/signed-ppc-for-upstream: (156 commits)
  spapr_pci: Advertise MSI quota
  PPC: KVM: Make pv hcall endian agnostic
  powerpc: use float64 for frsqrte
  spapr: Add kvm-type property
  spapr: Create SPAPRMachine struct
  linux-user: Tell guest about big host page sizes
  spapr_hcall: Add address-translation-mode-on-interrupt resource in H_SET_MODE
  spapr_hcall: Split h_set_mode()
  target-ppc: Enable DABRX SPR and limit it to <=POWER7
  target-ppc: Enable PPR and VRSAVE SPRs migration
  target-ppc: Add POWER8's Event Based Branch (EBB) control SPRs
  KVM: target-ppc: Enable TM state migration
  target-ppc: Add POWER8's TM SPRs
  target-ppc: Add POWER8's MMCR2/MMCRS SPRs
  target-ppc: Enable FSCR facility check for TAR
  target-ppc: Add POWER8's FSCR SPR
  target-ppc: Add POWER8's TIR SPR
  target-ppc: Refactor class init for POWER7/8
  target-ppc: Switch POWER7/8 classes to use correct PMU SPRs
  target-ppc: Make use of gen_spr_power5p_lpar() for POWER7/8
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-16 18:26:21 +01:00
Bharata B Rao
acb0ef5801 dump: Make DumpState and endian conversion routines available for arch-specific dump code
Make DumpState and endian conversion routines available for arch-specific dump
code by moving into dump.h. DumpState will be needed by arch-specific dump
code to access target endian information from DumpState->ArchDumpInfo. Also
break the dependency of dump.h from stubs/dump.c by creating a separate
dump-arch.h.

This patch doesn't change any functionality.

Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
[ rebased on top of current master branch,
  renamed endian helpers to cpu_to_dump{16,32,64},
  pass a DumpState * argument to endian helpers,
  Greg Kurz <gkurz@linux.vnet.ibm.com> ]
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
[agraf: fix to apply]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:36 +02:00
Markus Armbruster
ae60e8e378 blockdev: Remove unused DriveInfo reference count
It's always one since commit fa510eb dropped the last drive_get_ref().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16 17:23:19 +08:00
Markus Armbruster
60e19e06a4 blockdev: Rename drive_init(), drive_uninit() to drive_new(), drive_del()
"Init" and "uninit" suggest the functions don't allocate / free
storage.  But they do.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16 17:23:19 +08:00
Hani Benhabiles
8e5977797d monitor: Add ringbuf_write and ringbuf_read argument completion
Export chr_is_ringbuf() function. Also remove left-over function prototypes
while at it.

Signed-off-by: Hani Benhabiles <hani@linux.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-11 10:10:28 -04:00
Laszlo Ersek
22227f121b dump: eliminate DumpState.page_shift ("guest's page shift")
Just use TARGET_PAGE_BITS.

"DumpState.page_shift" used to have type "uint32_t", while the replacement
TARGET_PAGE_BITS has type "int". Since "DumpState.page_shift" was only
used as bit shift counts in the paddr_to_pfn() and pfn_to_paddr() macros,
this is safe.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-11 10:10:28 -04:00
Cornelia Huck
d426d9fba8 s390x/virtio-ccw: wire up irq routing and irqfds
Make use of the new s390 adapter irq routing support to enable real
in-kernel irqfds for virtio-ccw with adapter interrupts.

Note that s390 doesn't provide the common KVM_CAP_IRQCHIP capability, but
rather needs KVM_CAP_S390_IRQCHIP to be enabled. This is to ensure backward
compatibility.

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-05-20 13:05:58 +02:00
Alexander Graf
61c7bbd236 kvm: Fix enable_cap helpers on older gcc
Commit 40f1ee27aa introduced handy helpers for enable_cap calls on
vcpu and vm level. Unfortunately some older gcc versions (4.7.1, 4.6)
seem to choke on signedness detection in inline created variables:

target-ppc/kvm.c: In function 'kvmppc_booke_watchdog_enable':
target-ppc/kvm.c:1302:21: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
target-ppc/kvm.c: In function 'kvmppc_set_papr':
target-ppc/kvm.c:1504:21: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]

However - thanks to Thomas Huth for the suggestion - we can just cast the
offending potentially 0 value to a signed type, making the comparison signed.

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-05-20 13:05:57 +02:00
Paolo Bonzini
50a2c6e55f kvm: reset state from the CPU's reset method
Now that we have a CPU object with a reset method, it is better to
keep the KVM reset close to the CPU reset.  Using qemu_register_reset
as we do now keeps them far apart.

With this patch, PPC no longer calls the kvm_arch_ function, so
it can get removed there.  Other arches call it from their CPU
reset handler, and the function gets an ARMCPU/X86CPU/S390CPU.

Note that ARM- and s390-specific functions are called kvm_arm_*
and kvm_s390_*, while x86-specific functions are called kvm_arch_*.
That follows the convention used by the different architectures.
Changing that is the topic of a separate patch.

Reviewed-by: Gleb Natapov <gnatapov@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-13 13:12:40 +02:00
Cornelia Huck
ada4135f84 kvm: make one_reg helpers available for everyone
s390x introduced helper functions for getting/setting one_regs with
commit 860643bc. However, nothing about these is s390-specific.

Alexey Kardashevskiy had already posted a general version, so let's
merge the two patches and massage the code a bit.

CC: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-13 13:11:08 +02:00
Peter Maydell
c9541f67df migration/next for 20140505
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140505' into staging

migration/next for 20140505

# gpg: Signature made Mon 05 May 2014 21:27:24 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found

* remotes/juanquintela/tags/migration/20140505: (36 commits)
  migration: expose xbzrle cache miss rate
  migration: expose the bitmap_sync_count to the end
  migration: Add counts of updating the dirty bitmap
  XBZRLE: Fix one XBZRLE corruption issues
  migration: remove duplicate code
  Coverity: Fix failure path for qemu_accept in migration
  Init the XBZRLE.lock in ram_mig_init
  Provide init function for ram migration
  Count used RAMBlock pages for migration_dirty_pages
  Make qemu_peek_buffer loop until it gets it's data
  Disallow outward migration while awaiting incoming migration
  virtio: validate config_len on load
  virtio-net: out-of-bounds buffer write on load
  openpic: avoid buffer overrun on incoming migration
  ssi-sd: fix buffer overrun on invalid state load
  savevm: Ignore minimum_version_id_old if there is no load_state_old
  usb: sanity check setup_index+setup_len in post_load
  vmstate: s/VMSTATE_INT32_LE/VMSTATE_INT32_POSITIVE_LE/
  virtio-scsi: fix buffer overrun on invalid state load
  zaurus: fix buffer overrun on invalid state load
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-07 14:51:21 +01:00
Dr. David Alan Gilbert
0d6ab3ab91 Provide init function for ram migration
Provide ram_mig_init (like blk_mig_init) for vl.c to initialise stuff
to do with ram migration (currently in arch_init.c).

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-05-05 22:15:03 +02:00
Marcel Apfelbaum
f1e298794d machine: Replace QEMUMachine by MachineClass in accelerator configuration
This minimizes QEMUMachine usage, as part of machine QOM-ification.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-05-05 19:08:49 +02:00
Cornelia Huck
40f1ee27aa kvm: add kvm_{vm,vcpu}_enable_cap
Provide helper functions for enabling capabilities (on a vcpu and on a vm).

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-04-30 14:39:39 +02:00
Stefan Hajnoczi
8c2664d869 iothread: make IOThread struct definition public
Make the IOThread struct definition public so objects can be embedded in
parent structs.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-04-04 20:48:02 +02:00
Peter Maydell
90c49ef165 acpi,pc,test bug fixes
More small fixes all over the place.
 Notably fixes for big-endian hosts by Marcel.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

acpi,pc,test bug fixes

More small fixes all over the place.
Notably fixes for big-endian hosts by Marcel.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 24 Mar 2014 10:41:07 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  tests/acpi-test: do not fail if iasl is broken
  vl.c: Use MAX_CPUMASK_BITS macro instead of hardcoded constant
  sysemu.h: Document what MAX_CPUMASK_BITS really limits
  acpi: fix endian-ness for table ids
  acpi-test: signature endian-ness fixes
  i386/acpi-build: support hotplug of VCPU with APIC ID 0xFF
  acpi-test: rebuild SSDT
  i386/acpi-build: allow more than 255 elements in CPON
  pc: Refuse max_cpus if it results in too large APIC ID
  acpi: Don't use MAX_CPUMASK_BITS for APIC ID bitmap
  acpi: Assert sts array limit on AcpiCpuHotplug_add()
  pc: Refuse CPU hotplug if the resulting APIC ID is too large
  acpi: Add ACPI_CPU_HOTPLUG_ID_LIMIT macro
  acpi-test: update expected SSDT files
  acpi-build: fix misaligned access

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-24 19:00:02 +00:00
Alexey Kardashevskiy
30e32af746 vl.c: Extend get_boot_devices_list() to ignore suffixes
As suffixes do not make sense for sPAPR's device tree and
there is no way to filter them out on the BusState::get_fw_dev_path()
level, let's add an ability for the external caller to specify
whether to apply suffixes or not.

We could handle suffixes in SLOF (ignored for now) but this would require
serious rework in the node opening code in SLOF, which has no obvious
benefit for the currently emulated sPAPR machine.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:40:07 +01:00
Eduardo Habkost
d2995916ea sysemu.h: Document what MAX_CPUMASK_BITS really limits
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-19 13:24:29 +02:00
Mark Wu
d44229c54f Fix vga_interface_type for command line argument '-device VGA'
Some machine (like pseries) initialization code determines if it has
graphics according to vga_interface_type. In the original code,
vga_interface_type is evaluated to VGA_NONE even if a VGA is added
via '-device VGA'. It causes the machine not aware of the graphics
device configured. Add a new VGA device type to indicate that it has a
VGA device, which will be initialized in QOM device initialization.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Mark Wu <wudxw@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 20:53:19 +01:00
Peter Maydell
57fac92c2d Block pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Block pull request

# gpg: Signature made Thu 13 Mar 2014 13:50:49 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request: (24 commits)
  block/raw-win32: bdrv_parse_filename() for hdev
  block/raw-posix: Strip protocol prefix on creation
  block/raw-posix: bdrv_parse_filename() for cdrom
  block/raw-posix: bdrv_parse_filename() for floppy
  block/raw-posix: bdrv_parse_filename() for hdev
  qemu-io: Fix warnings from static code analysis
  block: Unlink temporary file
  qcow2: Don't write with BDRV_O_INCOMING
  qcow2: Keep option in qcow2_invalidate_cache()
  qmp: add query-iothreads command
  iothread: stash thread ID away
  dataplane: replace internal thread with IOThread
  iothread: add "iothread" qdev property type
  qdev: make get_pointer() handle temporary strings
  iothread: add I/O thread object
  aio: add aio_context_acquire() and aio_context_release()
  rfifolock: add recursive FIFO lock
  object: add object_get_canonical_path_component()
  block: Rewrite the snapshot authorization mechanism for block filters.
  iotests: Test corruption during COW request
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-13 15:33:04 +00:00
Stefan Hajnoczi
be8d853766 iothread: add I/O thread object
This is a stand-in for Michael Roth's QContext.  I expect this to be
replaced once QContext is completed.

The IOThread object is an AioContext event loop thread.  This patch adds
the concept of multiple event loop threads, allowing users to define
them.

When SMP guests run on SMP hosts it makes sense to instantiate multiple
IOThreads.  This spreads event loop processing across multiple cores.
Note that additional patches are required to actually bind a device to
an IOThread.

[Andreas Färber <afaerber@suse.de> pointed out that the embedded parent
object instance should be called "parent_obj" and have a newline
afterwards.  This patch has been changed to reflect this.
-- Stefan]

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-03-13 14:42:24 +01:00
Andreas Färber
602a3921ff Revert "KVM: Split QEMUMachine typedef into separate header"
This reverts commit 9c06a1f79f.
The new header sysemu/qemumachine.h is undesired.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 03:49:48 +01:00
Aneesh Kumar K.V
135a129a1c kvm: Add a new machine option kvm-type
Targets like ppc64 support different types of KVM, one which use
hypervisor mode and the other which doesn't. Add a new machine
option kvm-type that helps in selecting the respective ones
We also add a new QEMUMachine callback get_vm_type that helps
in mapping the string representation of kvm type specified.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[agraf: spelling fixes, use error_report(), use qemumachine.h]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05 03:06:24 +01:00
Alexander Graf
9c06a1f79f KVM: Split QEMUMachine typedef into separate header
Older gcc versions (such as the one in SLES11) get confused when you declare
a typedef on the same struct twice.

To work around that limitation, let's extract the QEMUMachine typedef into a
separate header file that is guarded by preprocessor duplicate include checks.

This fixes the following type of compile errors for me:

  In file included from vl.c:125:
  include/hw/xen/xen.h:39: error: redefinition of typedef "QEMUMachine"
  include/sysemu/kvm.h:155: error: previous declaration of "QEMUMachine" was here

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05 03:06:24 +01:00
Peter Maydell
e00ef747f0 Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging
* remotes/qmp-unstable/queue/qmp: (32 commits)
  qapi: Add missing null check to opts_start_struct()
  qapi: Clean up superfluous null check in qapi_dealloc_type_str()
  qapi: Clean up null checking in generated visitors
  qapi: Drop unused code in qapi-commands.py
  qapi: Drop nonsensical header guard in generated qapi-visit.c
  qapi: Fix licensing of scripts
  tests/qapi-schema: Cover flat union types
  tests/qapi-schema: Cover union types with base
  tests/qapi-schema: Cover complex types with base
  tests/qapi-schema: Cover anonymous union types
  tests/qapi-schema: Cover simple argument types
  tests/qapi-schema: Cover optional command arguments
  tests/qapi-schema: Actually check successful QMP command response
  monitor: Remove left-over code in do_info_profile.
  qerror: Improve QERR_DEVICE_NOT_ACTIVE message
  qmp: Check for returned data from __json_read in get_events
  dump: add 'query-dump-guest-memory-capability' command
  Define the architecture for compressed dump format
  dump: make kdump-compressed format available for 'dump-guest-memory'
  dump: add API to write dump pages
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-04 17:01:07 +00:00
Peter Maydell
d47e95c0c8 Merge remote-tracking branch 'remotes/mcayland/qemu-sparc' into staging
* remotes/mcayland/qemu-sparc:
  sun4m: Add Sun CG3 framebuffer initialisation function
  sun4m: Add Sun CG3 framebuffer and corresponding OpenBIOS FCode ROM
  sun4m: fix slavio timer RUN/STOP bit
  sun4m: Set HostID in NVRAM

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-04 13:09:06 +00:00
qiaonuohan
d12f57ec66 dump: add API to write dump pages
functions are used to write page to vmcore. vmcore is written page by page.
page desc is used to store the information of a page, including a page's size,
offset, compression format, etc.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
64cfba6a47 dump: add APIs to operate DataCache
DataCache is used to store data temporarily, then the data will be written to
vmcore. These functions will be called later when writing data of page to
vmcore.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
d0686c7291 dump: add API to write dump_bitmap
functions are used to write 1st and 2nd dump_bitmap of kdump-compressed format,
which is used to indicate whether the corresponded page is existed in vmcore.
1st and 2nd dump_bitmap are same, because dump level is specified to 1 here.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
298f116827 dump: add API to write dump header
the functions are used to write header of kdump-compressed format to vmcore.
Header of kdump-compressed format includes:
1. common header: DiskDumpHeader32 / DiskDumpHeader64
2. sub header: KdumpSubHeader32 / KdumpSubHeader64
3. extra information: only elf notes here

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
7aad248d35 dump: add members to DumpState and init some of them
add some members to DumpState that will be used in writing vmcore in
kdump-compressed format. some of them, like page_size, will be initialized
in the patch.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
fda053875e dump: add API to write header of flatten format
flatten format will be used when writing kdump-compressed format. The format is
also used by makedumpfile, you can refer to the following URL to get more
detailed information about flatten format of kdump-compressed format:
http://sourceforge.net/projects/makedumpfile/

The two functions here are used to write start flat header and end flat header
to vmcore, and they will be called later when flatten format is used.

struct MakedumpfileHeader stored at the head of vmcore is used to indicate the
vmcore is in flatten format.

struct MakedumpfileHeader {
    char signature[16];     /* = "makedumpfile" */
    int64_t type;           /* = 1 */
    int64_t version;        /* = 1 */
};

And struct MakedumpfileDataHeader, with offset and buf_size set to -1, is used
to indicate the end of vmcore in flatten format.

struct MakedumpfileDataHeader {
    int64_t offset;         /* = -1 */
    int64_t buf_size;       /* = -1 */
};

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:49:02 -05:00
Mark Cave-Ayland
af87bf290f sun4m: Add Sun CG3 framebuffer initialisation function
In order to allow the user to choose the framebuffer for sparc-softmmu, add
-vga tcx and -vga cg3 options to the QEMU command line. If no option is
specified, the default TCX framebuffer is used.

Since proprietary FCode ROMs use a resolution of 1152x900, slightly relax the
validation rules to allow both displays to be initiated at the higher
resolution used by these ROMs upon request (OpenBIOS FCode ROMs default to
the normal QEMU sun4m default resolution of 1024x768).

Finally move any fprintf(stderr ...) statements in the areas affected by this
patch over to the new error_report() function.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Blue Swirl <blauwirbel@gmail.com>
CC: Anthony Liguori <aliguori@amazon.com>
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Bob Breuer <breuerr@mc.net>
CC: Artyom Tarasenko <atar4qemu@gmail.com>
2014-02-27 10:01:41 +00:00
Christoffer Dall
0a6a7ccaae kvm: Common device control API functions
Introduces two simple functions:
    int kvm_device_ioctl(int fd, int type, ...);
    int kvm_create_device(KVMState *s, uint64_t type, bool test);

These functions wrap the basic ioctl-based interactions with KVM in a
way similar to other KVM ioctl wrappers.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Message-id: 1392687720-26806-4-git-send-email-christoffer.dall@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-26 17:20:00 +00:00
Christoffer Dall
d6032e06d1 kvm: Introduce kvm_arch_irqchip_create
Introduce kvm_arch_irqchip_create an arch-specific hook in preparation
for architecture-specific use of the device control API to create IRQ
chips.

Following patches will implement the ARM irqchip create method to prefer
the device control API over the older KVM_CREATE_IRQCHIP API.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Message-id: 1392687720-26806-3-git-send-email-christoffer.dall@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-26 17:20:00 +00:00
Fam Zheng
23802b4fe0 qtest: Don't segfault with invalid -qtest option
This prints an error message, instead of core dump, when "-qtest"
option value is invalid, e.g.:

    $ ./x86_64-softmmu/qemu-system-x86_64 -qtest unknown
        qemu-system-x86_64: Failed to initialize device for qtest:
        "unknown"

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-02-14 21:12:01 +01:00
Michael S. Tsirkin
b3be57c358 qtest: don't report signals if qtest driver enabled
qtest driver always uses signals to kill qemu
no need to report it, whatever the accelerator state.

Add API to detect qtest driver, and suppress reporting
signals in this case.

Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-02-13 17:47:43 +01:00
Igor Mammedov
57d3e1b3f5 virtio_rng: replace custom backend API with UserCreatable.complete() callback
in addition fix default backend leak by releasing it if its
initialization failed.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-28 12:47:11 -05:00
Peter Crosthwaite
be5907f2cc device_tree: qemu_fdt_setprop: Rename val_array arg
Looking at the implementation, this doesn't really have a lot to do
with arrays. Its just a pointer to a buffer and is passed through
to the wrapped fn (qemu_fdt_setprop) unchanged. So rename to make it
consistent with libfdt, which in the wrapped function just calls it
"val".

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-12-20 01:58:12 +01:00
Peter Crosthwaite
5a4348d111 device_tree: s/qemu_devtree/qemu_fdt globally
The qemu_devtree API is a wrapper around the fdt_ set of APIs.
Rename accordingly.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[agraf: also convert hw/arm/virt.c]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-12-20 01:58:11 +01:00
Marc-André Lureau
d61b0c9a2f char: add qemu_chr_fe_event()
Teach the chardev frontend to send event. This is used by the Spice port
chardev currently.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-16 10:12:20 +01:00
Marc-André Lureau
314f7ea74f qmp_change_blockdev() remove unused has_format
Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-16 10:12:20 +01:00
Paolo Bonzini
d4fce24f3a qtest: split configuration of qtest accelerator and chardev
qtest uses the icount infrastructure to implement a test-driven vm_clock.  This
however is not necessary when using -qtest as a "probe" together with a normal
TCG-, KVM- or Xen-based virtual machine.  Hence, split out the call to
configure_icount into a new function that is called only for "-machine
accel=qtest"; and disable those commands when running with an accelerator
other than qtest.

This also fixes an assertion failure with "qemu-system-x86_64 -machine
accel=qtest" but no -qtest option.  This is a valid case, albeit somewhat
weird; nothing will happen in the VM but you'll still be able to
interact with the monitor or the GUI.

Now that qtest_init is not limited to an int(void) function, change
global variables that are not used outside qtest_init to arguments.

And finally, cleanup useless parts of include/sysemu/qtest.h.  The file
is not used at all for user-only emulation, and qtest is not available
on Win32 due to its usage of sigwait.

Reported-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-12-10 12:29:56 +02:00
Amos Kong
968854c8a1 qmp: access the local QemuOptsLists for drive option
Currently we have three QemuOptsList (qemu_common_drive_opts,
qemu_legacy_drive_opts, and qemu_drive_opts), only qemu_drive_opts
is added to vm_config_groups[].

This patch changes query-command-line-options to access three local
QemuOptsLists for drive option, and merge the description items
together.

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-11-14 13:09:07 +01:00
Kevin Wolf
2d246f01d3 blockdev: Introduce DriveInfo.enable_auto_del
BlockDriverStates shouldn't be affected by an unplugged guest device,
except if created with the legacy -drive command line option or the
drive_add HMP command.

Make the automatic deletion as well as cancelling of jobs conditional on
an enable_auto_del boolean that is only set in drive_init().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
2013-10-11 16:50:01 +02:00
Anthony Liguori
e8f2f59aaf Merge remote-tracking branch 'amit/char-remove-watch-on-unplug' into staging
# By Amit Shah
# Via Amit Shah
* amit/char-remove-watch-on-unplug:
  char: remove watch callback on chardev detach from frontend
  char: use common function to disable callbacks on chardev close
  char: move backends' io watch tag to CharDriverState

Message-id: 20131004154802.GA25646@grmbl.mre
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-10-10 13:16:02 -07:00
Anthony Liguori
eb322b8155 pc,pci,virtio fixes and cleanups
This includes pc and pci cleanups and enhancements,
 and a virtio-net bugfix related to softmac programming.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pc,pci,virtio fixes and cleanups

This includes pc and pci cleanups and enhancements,
and a virtio-net bugfix related to softmac programming.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Sun 29 Sep 2013 01:51:16 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Michael S. Tsirkin (8) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  smbios: Factor out smbios_maybe_add_str()
  smbios: Make multiple -smbios type= accumulate sanely
  smbios: Improve diagnostics for conflicting entries
  smbios: Convert to QemuOpts
  smbios: Normalize smbios_entry_add()'s error handling to exit(1)
  virtio-net: fix up HMP NIC info string on reset
  pci: remove explicit check to 64K ioport size
  piix4: disable io on reset
  piix: use 64 bit window programmed by guest
  q35: use 64 bit window programmed by guest
  pci: add helper to retrieve the 64-bit range
  range: add min/max operations on ranges
  range: add Range to typedefs
  q35: make pci window address/size match guest cfg

Message-id: 1380437951-21788-1-git-send-email-mst@redhat.com
2013-09-30 17:15:01 -05:00
Markus Armbruster
fc3b32958a smbios: Make multiple -smbios type= accumulate sanely
Currently, -smbios type=T,NAME=VAL,... adds one field (T,NAME) with
value VAL to fw_cfg for each unique NAME.  If NAME occurs multiple
times, the last one's VAL is used (before the QemuOpts conversion, the
first one was used).

Multiple -smbios can add multiple fields with the same (T, NAME).
SeaBIOS reads all of them from fw_cfg, but uses only the first field
(T, NAME).  The others are ignored.

"First one wins, subsequent ones get ignored silently" isn't nice.  We
commonly let the last option win.  Useful, because it lets you
-readconfig first, then selectively override with command line
options.

Clean up -smbios to work the common way.  Accumulate the settings,
with later ones overwriting earlier ones.  Put the result into fw_cfg
(no more useless duplicates).

Bonus cleanup: qemu_uuid_parse() no longer sets SMBIOS system uuid by
side effect.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-09-28 23:49:39 +03:00
Markus Armbruster
4f953d2fc8 smbios: Convert to QemuOpts
So that it can be set in config file for -readconfig.

This tightens parsing of -smbios, and makes it more consistent with
other options: unknown parameters are rejected, numbers with trailing
junk are rejected, when a parameter is given multiple times, last
rather than first wins, ...

MST: drop one chunk to fix build errors

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-09-28 23:49:06 +03:00
Liu, Jinsong
4bc78a8772 qemu: Adjust qemu wakeup
Currently Xen hvm s3 has a bug coming from the difference between
qemu-traditioanl and qemu-xen. For qemu-traditional, the way to
resume from hvm s3 is via 'xl trigger' command. However, for
qemu-xen, the way to resume from hvm s3 inherited from standard
qemu, i.e. via QMP, and it doesn't work under Xen.

The root cause is, for qemu-xen, 'xl trigger' command didn't reset
devices, while QMP didn't unpause hvm domain though they did qemu
system reset.

We have two qemu patches and one xl patch to fix Xen hvm s3 bug.
This patch is the qemu patch 1. It adjusts qemu wakeup so that
Xen s3 resume logic (which will be implemented at qemu patch 2)
will be notified after qemu system reset.

Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
2013-09-25 16:38:29 +00:00
Anthony Liguori
3e4be9c297 Merge remote-tracking branch 'qemu-kvm/uq/master' into staging
# By Alexey Kardashevskiy (3) and others
# Via Paolo Bonzini
* qemu-kvm/uq/master:
  target-i386: add feature kvm_pv_unhalt
  linux-headers: update to 3.12-rc1
  target-i386: forward CPUID cache leaves when -cpu host is used
  linux-headers: update to 3.11
  kvm: fix traces to use %x instead of %d
  kvmvapic: Clear also physical ROM address when entering INACTIVE state
  kvmvapic: Enter inactive state on hardware reset
  kvmvapic: Catch invalid ROM size
  kvm irqfd: support direct msimessage to irq translation
  fix steal time MSR vmsd callback to proper opaque type
  kvm: warn if num cpus is greater than num recommended
  cpu: Move cpu state syncs up into cpu_dump_state()
  exec: always use MADV_DONTFORK

Message-id: 1379694292-1601-1-git-send-email-pbonzini@redhat.com
2013-09-23 11:52:49 -05:00
Alexey Kardashevskiy
76fe21deda kvm irqfd: support direct msimessage to irq translation
On PPC64 systems MSI Messages are translated to system IRQ in a PCI
host bridge. This is already supported for emulated MSI/MSIX but
not for irqfd where the current QEMU allocates IRQ numbers from
irqchip and maps MSIMessages to IRQ in the host kernel.

This adds a new direct mapping flag which tells
the kvm_irqchip_add_msi_route() function that a new VIRQ
should not be allocated, instead the value from MSIMessage::data
should be used. It is up to the platform code to make sure that
this contains a valid IRQ number as sPAPR does in spapr_pci.c.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-09-20 12:37:52 +02:00
James Hogan
97577fd4c3 cpu: Move cpu state syncs up into cpu_dump_state()
The x86 and ppc targets call cpu_synchronize_state() from their
*_cpu_dump_state() callbacks to ensure that up to date state is dumped
when KVM is enabled (for example when a KVM internal error occurs).

Move this call up into the generic cpu_dump_state() function so that
other KVM targets (namely MIPS) can take advantage of it.

This requires kvm_cpu_synchronize_state() and cpu_synchronize_state() to
be moved out of the #ifdef NEED_CPU_H in <sysemu/kvm.h> so that they're
accessible to qom/cpu.c.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Alexander Graf <agraf@suse.de>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: qemu-ppc@nongnu.org
Cc: kvm@vger.kernel.org
Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-09-20 12:37:52 +02:00
Anthony Liguori
7d41364e71 Merge remote-tracking branch 'bonzini/scsi-next' into staging
# By Peter Lieven (3) and others
# Via Paolo Bonzini
* bonzini/scsi-next:
  spapr-vscsi: Report error on unsupported MAD requests
  spapr-vscsi: Adding VSCSI capabilities
  iscsi: split discard requests in multiple parts
  iscsi: add .bdrv_get_block_status
  iscsi: add logical block provisioning information to iscsilun
  hw/scsi/lsi53c895a: Use deposit32 rather than handcoded shift/mask
  hw/scsi/lsi53c895a: Use sextract32 for sign-extension
  scsi: Fix scsi_bus_legacy_add_drive() scsi-generic with serial
  virtio-scsi: Make type virtio-scsi-common abstract
  spapr-vscsi: add task management
  scsi: prefer UUID to VM name for the initiator name

Message-id: 1378984634-765-1-git-send-email-pbonzini@redhat.com
2013-09-17 09:50:23 -05:00
Markus Armbruster
91138037cb exec: Simplify the guest physical memory allocation hook
Make it a generic hook rather than a KVM hook.  Less code and
ifdeffery.

Since the only user of the hook is old S390 KVM, there's hope we can
get rid of it some day.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Message-id: 1375276272-15988-5-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-12 11:45:31 -05:00
Paolo Bonzini
5accc8408f scsi: prefer UUID to VM name for the initiator name
The UUID is unique even across multiple hosts, thus it is
better than a VM name even if it is less user-friendly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-09-12 08:46:21 +02:00
Amit Shah
7ba9addc16 char: move backends' io watch tag to CharDriverState
All the backends implement an io watcher tag for callbacks.  Move it to
CharDriverState from each backend's struct to make accessing the tag from
backend-neutral functions easier.

This will be used later to cancel a callback on chardev detach from a
frontend.

CC: <qemu-stable@nongnu.org>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2013-09-05 18:30:31 +05:30
Anthony Liguori
b5d54bd421 Merge remote-tracking branch 'qemu-kvm/uq/master' into stable-1.5
* qemu-kvm/uq/master:
  kvm-stub: fix compilation
  kvm: shorten the parameter list for get_real_device()
  kvm: i386: fix LAPIC TSC deadline timer save/restore
  kvm-all.c: max_cpus should not exceed KVM vcpu limit
  kvm: Simplify kvm_handle_io
  kvm: x86: fix setting IA32_FEATURE_CONTROL with nested VMX disabled
  kvm: add KVM_IRQFD_FLAG_RESAMPLE support
  kvm: migrate vPMU state
  target-i386: remove tabs from target-i386/cpu.h
  Initialize IA32_FEATURE_CONTROL MSR in reset and migration

Conflicts:
	target-i386/cpu.h
	target-i386/kvm.c

aliguori: fixup trivial conflicts due to whitespace and added cpu
          argument

Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-08-29 17:21:51 -05:00
Alex Bligh
884f17c235 aio / timers: Convert rtc_clock to be a QEMUClockType
Convert rtc_clock to be a QEMUClockType

Move rtc_clock users to use the new API

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Vincenzo Maffione
ca916d3729 kvm: add KVM_IRQFD_FLAG_RESAMPLE support
Added an EventNotifier* parameter to
kvm-all.c:kvm_irqchip_add_irqfd_notifier(), in order to give KVM
another eventfd to be used as "resamplefd". See the documentation
in the linux kernel sources in Documentation/virtual/kvm/api.txt
(section 4.75) for more details.
When the added parameter is passed NULL, the behaviour of the
function is unchanged with respect to the previous versions.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-08-09 21:19:54 +02:00
Laszlo Ersek
56c4bfb3f0 dump: rebase from host-private RAMBlock offsets to guest-physical addresses
RAMBlock.offset                   --> GuestPhysBlock.target_start
RAMBlock.offset + RAMBlock.length --> GuestPhysBlock.target_end
RAMBlock.length                   --> GuestPhysBlock.target_end -
                                      GuestPhysBlock.target_start

"GuestPhysBlock.host_addr" is only used when writing the dump contents.

This patch enables "crash" to work with the vmcore by rebasing the vmcore
from the left side of the following diagram to the right side:

host-private
offset
relative
to ram_addr   RAMBlock                  guest-visible paddrs
            0 +-------------------+.....+-------------------+ 0
              |         ^         |     |        ^          |
              |       640 KB      |     |      640 KB       |
              |         v         |     |        v          |
  0x0000a0000 +-------------------+.....+-------------------+ 0x0000a0000
              |         ^         |     |XXXXXXXXXXXXXXXXXXX|
              |       384 KB      |     |XXXXXXXXXXXXXXXXXXX|
              |         v         |     |XXXXXXXXXXXXXXXXXXX|
  0x000100000 +-------------------+.....+-------------------+ 0x000100000
              |         ^         |     |        ^          |
              |       3583 MB     |     |      3583 MB      |
              |         v         |     |        v          |
  0x0e0000000 +-------------------+.....+-------------------+ 0x0e0000000
              |         ^         |.    |XXXXXXXXXXXXXXXXXXX|
              | above_4g_mem_size | .   |XXXX PCI hole XXXXX|
              |         v         |  .  |XXXX          XXXXX|
     ram_size +-------------------+   . |XXXX  512 MB  XXXXX|
                                   .   .|XXXXXXXXXXXXXXXXXXX|
                                    .   +-------------------+ 0x100000000
                                     .  |         ^         |
                                      . | above_4g_mem_size |
                                       .|         v         |
                                        +-------------------+ ram_size
                                                              + 512 MB

Related RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=981582

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-08 11:01:46 -04:00
Laszlo Ersek
c5d7f60f06 dump: populate guest_phys_blocks
While the machine is paused, in guest_phys_blocks_append() we register a
one-shot MemoryListener, solely for the initial collection of the valid
guest-physical memory ranges that happens at listener registration time.

For each range that is reported to guest_phys_blocks_region_add(), we
attempt to merge the range with the preceding one.

Ranges can only be joined if they are contiguous in both guest-physical
address space, and contiguous in host virtual address space.

The "maximal" ranges that remain in the end constitute the guest-physical
memory map that the dump will be based on.

Related RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=981582

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-08 11:01:46 -04:00
Laszlo Ersek
5ee163e8ea dump: introduce GuestPhysBlockList
The vmcore must use physical addresses that are visible to the guest, not
addresses that point into linear RAMBlocks. As first step, introduce the
list type into which we'll collect the physical mappings in effect at the
time of the dump.

Related RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=981582

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-08 11:01:46 -04:00
Anthony Liguori
75e2a4baf1 Merge remote-tracking branch 'spice/spice.v72' into staging
# By Gerd Hoffmann
# Via Gerd Hoffmann
* spice/spice.v72:
  spice: fix display initialization

Message-id: 1375173625-3784-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-30 18:48:58 -05:00
Michael Roth
7b7ab18d0b chardev: fix CHR_EVENT_OPENED events for mux chardevs
As of bd5c51ee6c, chardevs no longer use
bottom-halves to issue CHR_EVENT_OPENED events. To maintain past
semantics, we instead defer the CHR_EVENT_OPENED events toward the end
of chardev initialization.

For muxes, this isn't good enough, since a range of FEs must be able
to attach to the mux prior to any CHR_EVENT_OPENED being issued, else
each FE will immediately print it's initial output (prompts, banners,
etc.) just prior to us switching to the next FE as part of
initialization.

The is new and confusing behavior for users, as they'll see output for
things like the HMP monitor, even though their the current mux focus
may be a guest serial port with potentially no output.

We fix this by further deferring CHR_EVENT_OPENED events for FEs
associated with muxes until after machine init by flagging mux chardevs
with 'explicit_be_open', which suppresses emission of CHR_EVENT_OPENED
events until we explicitly set the mux as opened later.

Currently, we must defer till after machine init since we potentially
associate FEs with muxes as part of realize (for instance,
serial_isa_realizefn).

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Message-id: 1375207462-8141-1-git-send-email-mdroth@linux.vnet.ibm.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-30 18:48:21 -05:00
Gerd Hoffmann
58ae52a8dc spice: fix display initialization
Spice has two display interface implementations:  One integrated into
the qxl graphics card, and one generic which can operate with every
qemu-emulated graphics card.

The generic one is activated in case spice is used without qxl.  The
logic for that only caught the "-vga qxl" case, "-device qxl-vga" goes
unnoticed.  Fix that by adding a check in the spice interface
registration so we'll notice the qxl card no matter how it is created.

https://bugzilla.redhat.com/show_bug.cgi?id=981094

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-07-30 10:25:47 +02:00
Stefan Weil
38e478eccf kvm: Change prototype of kvm_update_guest_debug()
Passing a CPUState pointer instead of a CPUArchState pointer eliminates
the last target dependent data type in sysemu/kvm.h.

It also simplifies the code.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-26 23:05:31 +02:00
Andreas Färber
6227881415 kvm: Change kvm_{insert,remove}_breakpoint() argument to CPUState
CPUArchState is no longer directly used since converting CPU loops to
CPUState.

Prepares for changing GDBState::c_cpu to CPUState.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 02:41:32 +02:00
Peter Maydell
97c38f8c27 device_tree: Add qemu_devtree_setprop_sized_cells() utility functions
We already have a qemu_devtree_setprop_cells() which sets a dtb
property to an array of cells whose values are specified by varargs.
However for the fairly common case of setting a property to a list
of addresses or of address,size pairs the number of cells used by
each element in the list depends on the parent's #address-cells
and #size-cells properties. To make this easier we provide an analogous
qemu_devtree_setprop_sized_cells() macro which allows the number
of cells used by each element to be specified. This is implemented
using an underlying qemu_devtree_setprop_sized_cells_from_array()
function which takes the values and sizes as an array; this may
also be directly useful for cases where the cell contents are
constructed programmatically.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1373977512-28932-2-git-send-email-peter.maydell@linaro.org
2013-07-19 12:58:46 +01:00
Kevin Wolf
5698346391 cpus: Add return value for vm_stop()
If flushing the block devices fails, return an error. The VM is stopped
anyway.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-07-15 09:51:38 +02:00
Anthony Liguori
51455c59dd QOM CPUState refactorings
* Fix for OpenRISCCPU subclasses
 * Fix for gdbstub CPU selection
 * Move linux-user CPU functions into new header
 * CPUState part 10 refactoring: first_cpu, next_cpu, cpu_single_env et al.
 * Fix some targets to consistently inline TCG code generation
 * Centrally log CPU reset
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Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into staging

QOM CPUState refactorings

* Fix for OpenRISCCPU subclasses
* Fix for gdbstub CPU selection
* Move linux-user CPU functions into new header
* CPUState part 10 refactoring: first_cpu, next_cpu, cpu_single_env et al.
* Fix some targets to consistently inline TCG code generation
* Centrally log CPU reset

# gpg: Signature made Wed 10 Jul 2013 07:52:39 AM CDT using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found

# By Andreas Färber (41) and others
# Via Andreas Färber
* afaerber/tags/qom-cpu-for-anthony: (43 commits)
  cpu: Move reset logging to CPUState
  target-ppc: Change LOG_MMU_STATE() argument to CPUState
  target-i386: Change LOG_PCALL_STATE() argument to CPUState
  log: Change log_cpu_state[_mask]() argument to CPUState
  target-i386: Change do_smm_enter() argument to X86CPU
  target-i386: Change do_interrupt_all() argument to X86CPU
  target-xtensa: Change gen_intermediate_code_internal() arg to XtensaCPU
  target-unicore32: Change gen_intermediate_code_internal() signature
  target-sparc: Change gen_intermediate_code_internal() argument to SPARCCPU
  target-sh4: Change gen_intermediate_code_internal() argument to SuperHCPU
  target-s390x: Change gen_intermediate_code_internal() argument to S390CPU
  target-ppc: Change gen_intermediate_code_internal() argument to PowerPCCPU
  target-mips: Change gen_intermediate_code_internal() argument to MIPSCPU
  target-microblaze: Change gen_intermediate_code_internal() argument types
  target-m68k: Change gen_intermediate_code_internal() argument to M68kCPU
  target-lm32: Change gen_intermediate_code_internal() argument to LM32CPU
  target-i386: Change gen_intermediate_code_internal() argument to X86CPU
  target-cris: Change gen_intermediate_code_internal() argument to CRISCPU
  target-arm: Change gen_intermediate_code_internal() argument to ARMCPU
  target-alpha: Change gen_intermediate_code_internal() argument to AlphaCPU
  ...
2013-07-10 10:54:16 -05:00
Andreas Färber
1d5791f4a6 kvm: Change kvm_remove_all_breakpoints() argument to CPUState
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09 21:20:28 +02:00
Andreas Färber
80b7cd7354 kvm: Free current_cpu identifier
Since CPU loops are done as last step in kvm_{insert,remove}_breakpoint()
and kvm_remove_all_breakpoints(), we do not need to distinguish between
invoking CPU and iterated CPUs and can thereby free the identifier for
use as a global variable.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09 21:20:28 +02:00
Markus Armbruster
7f9d6e540e vl: New qemu_get_machine_opts()
To be used in the next few commits to fix or clean up queries of
"machine" options (-machine and its sugared forms).

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372943363-24081-4-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-09 13:38:57 -05:00
Paolo Bonzini
f487b677c2 dma: keep a device alive while it has SGLists
Reviewed-by: Anthony Liguori <aliguori@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:30 +02:00
Alexander Graf
cb925cf923 KVM: PIC: Only commit irq routing when necessary
The current logic updates KVM's view of our interrupt map every time we
change it. While this is nice and bullet proof, it slows things down
badly for me. QEMU spends about 3 seconds on every start telling KVM what
news it has on its routing maps.

Instead, let's just synchronize the whole irq routing map as a whole when
we're done constructing it. For things that change during runtime, we can
still update the routing table on demand.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01 01:11:14 +02:00
Alexander Graf
7b7745930b KVM: Export kvm_init_irq_routing
On PPC, we can have different types of interrupt controllers, so we really
only know that we are going to use one when we created it.

Export kvm_init_irq_routing() to common code, so that we don't have to call
kvm_irqchip_create().

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01 01:11:14 +02:00
Alexander Graf
215e79c01c KVM: Don't assume that mpstate exists with in-kernel PIC always
On PPC, we don't support MP state. So far it's not necessary and I'm
not convinced yet that we really need to support it ever.

However, the current idle logic in QEMU assumes that an in-kernel PIC
also means we support MP state. This assumption is not true anymore.

Let's split up the two cases into two different variables. That way
PPC can expose an in-kernel PIC, while not implementing MP state.

Signed-off-by: Alexander Graf <agraf@suse.de>
CC: Jan Kiszka <jan.kiszka@siemens.com>
2013-07-01 01:11:13 +02:00
Anthony Liguori
ffeec223b5 Merge remote-tracking branch 'mjt/trivial-patches' into staging
# By Gerd Hoffmann (13) and Michael Tokarev (1)
# Via Michael Tokarev
* mjt/trivial-patches:
  doc: we use seabios, not bochs bios
  qemu-socket: don't leak opts on error
  qemu-char: report udp backend errors
  qemu-char: add -chardev mux support
  qemu-char: minor mux chardev fixes
  qemu-char: use ChardevBackendKind in CharDriver
  qemu-char: don't leak opts on error
  qemu-char: fix documentation for telnet+wait socket flags
  qemu-char: print notification to stderr
  qemu-char: use more specific error_setg_* variants
  qemu-char: check optional fields using has_*
  qemu-socket: catch monitor_get_fd failures
  qemu-socket: drop pointless allocation
  qemu-socket: zero-initialize SocketAddress

Message-id: 1372443465-22384-1-git-send-email-mjt@msgid.tls.msk.ru
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-28 15:48:35 -05:00
Gerd Hoffmann
99aec0123c qemu-char: use ChardevBackendKind in CharDriver
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-06-28 22:10:33 +04:00
Andreas Färber
1458c36313 kvm: Change kvm_cpu_exec() argument to CPUState
It no longer uses CPUArchState.

Prepares for changing qemu_kvm_cpu_thread_fn() opaque to CPUState.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:12 +02:00
Andreas Färber
491d6e80ea kvm: Change kvm_set_signal_mask() argument to CPUState
CPUArchState is no longer needed.

Prepares for changing qemu_kvm_init_cpu_signals() argument to CPUState.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:12 +02:00
Andreas Färber
cb446ecab7 kvm: Change cpu_synchronize_state() argument to CPUState
Change Monitor::mon_cpu to CPUState as well.

Reviewed-by: liguang <lig.fnst@cn.fujitsu.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:12 +02:00
Andreas Färber
dd1750d798 kvm: Change kvm_cpu_synchronize_state() argument to CPUState
It no longer relies on CPUArchState since 20d695a.

Reviewed-by: liguang <lig.fnst@cn.fujitsu.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:12 +02:00
Paolo Bonzini
df32fd1c9f dma: eliminate DMAContext
The DMAContext is a simple pointer to an AddressSpace that is now always
already available.  Make everyone hold the address space directly,
and clean up the DMA API to use the AddressSpace directly.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20 16:39:52 +02:00
Paolo Bonzini
24addbc76d dma: eliminate old-style IOMMU support
The translate function in the DMAContext is now always NULL.
Remove every reference to it.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20 16:32:47 +02:00
Andreas Färber
11ed09cf07 memory_mapping: Improve qemu_get_guest_memory_mapping() error reporting
Pass any Error out into dump_init() and have it actually stop on errors.
Whether it is unsupported on a certain CPU can be checked by looking for
a NULL CPUClass::get_memory_mapping field.

Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
[AF: Reverted changes to CPU loops]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11 19:38:13 +02:00
Andreas Färber
a23bbfda75 cpu: Turn cpu_get_memory_mapping() into a CPUState hook
Change error reporting from return value to Error argument.

Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
[AF: Fixed cpu_get_memory_mapping() documentation]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11 18:03:35 +02:00
Andreas Färber
6d4d3ae77d memory_mapping: Move MemoryMappingList typedef to qemu/typedefs.h
This will avoid issues with hwaddr and ram_addr_t when including
sysemu/memory_mapping.h for CONFIG_USER_ONLY, e.g., from qom/cpu.h.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11 17:58:03 +02:00
Andreas Färber
444d559078 cpu: Turn cpu_paging_enabled() into a CPUState hook
Relocate assignment of x86 get_arch_id to have all hooks in one place.

Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11 17:50:09 +02:00
Michael Roth
bd5c51ee6c qemu-char: don't issue CHR_EVENT_OPEN in a BH
When CHR_EVENT_OPENED was initially added, it was CHR_EVENT_RESET,
and it was issued as a bottom-half:

86e94dea5b

Which we basically used to print out a greeting/prompt for the
monitor.

AFAICT the only reason this was ever done in a BH was because in
some cases we'd modify the chr_write handler for a new chardev
backend *after* the site where we issued the reset (see:
86e94d:qemu_chr_open_stdio())

At some point this event was renamed to CHR_EVENT_OPENED, and we've
maintained the use of this BH ever since.

However, due to 9f939df955, we schedule
the BH via g_idle_add(), which is causing events to sometimes be
delivered after we've already begun processing data from backends,
leading to:

 known bugs:

  QMP:
    session negotation resets with OPENED event, in some cases this
    is causing new sessions to get sporadically reset

 potential bugs:

  hw/usb/redirect.c:
    can_read handler checks for dev->parser != NULL, which may be
    true if CLOSED BH has not been executed yet. In the past, OPENED
    quiesced outstanding CLOSED events prior to us reading client
    data. If it's delayed, our check may allow reads to occur even
    though we haven't processed the OPENED event yet, and when we
    do finally get the OPENED event, our state may get reset.

  qtest.c:
    can begin session before OPENED event is processed, leading to
    a spurious reset of the system and irq_levels

  gdbstub.c:
    may start a gdb session prior to the machine being paused

To fix these, let's just drop the BH.

Since the initial reasoning for using it still applies to an extent,
work around that by deferring the delivery of CHR_EVENT_OPENED until
after the chardevs have been fully initialized, toward the end of
qmp_chardev_add() (or some cases, qemu_chr_new_from_opts()). This
defers delivery long enough that we can be assured a CharDriverState
is fully initialized before CHR_EVENT_OPENED is sent.

Also, rather than requiring each chardev to do an explicit open, do it
automatically, and allow the small few who don't desire such behavior to
suppress the OPENED-on-init behavior by setting a 'explicit_be_open'
flag.

We additionally add missing OPENED events for stdio backends on w32,
which were previously not being issued, causing us to not recieve the
banner and initial prompts for qmp/hmp.

Reported-by: Stefan Priebe <s.priebe@profihost.ag>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Message-id: 1370636393-21044-1-git-send-email-mdroth@linux.vnet.ibm.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-10 11:38:37 -05:00
Anthony Liguori
cdf79b6454 Merge remote-tracking branch 'bonzini/iommu-for-anthony' into staging
# By Paolo Bonzini
# Via Paolo Bonzini
* bonzini/iommu-for-anthony: (22 commits)
  memory: add return value to address_space_rw/read/write
  memory: propagate errors on I/O dispatch
  exec: just use io_mem_read/io_mem_write for 8-byte I/O accesses
  memory: correctly handle endian-swapped 64-bit accesses
  memory: split accesses even when the old MMIO callbacks are used
  memory: add big endian support to access_with_adjusted_size
  memory: accept mismatching sizes in memory_region_access_valid
  memory: add address_space_access_valid
  exec: implement .valid.accepts for subpages
  memory: export memory_region_access_valid to exec.c
  exec: introduce memory_access_size
  exec: introduce memory_access_is_direct
  exec: expect mr->ops to be initialized for ROM
  memory: assign MemoryRegionOps to all regions
  memory: move unassigned_mem_ops to memory.c
  memory: add address_space_translate
  memory: dispatch unassigned accesses based on .valid.accepts
  exec: do not use error_mem_read
  exec: make io_mem_unassigned private
  cputlb: simplify tlb_set_page
  ...

Message-id: 1369947836-2638-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-31 11:32:25 -05:00
Paolo Bonzini
51644ab70b memory: add address_space_access_valid
The old-style IOMMU lets you check whether an access is valid in a
given DMAContext.  There is no equivalent for AddressSpace in the
memory API, implement it with a lookup of the dispatch tree.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29 16:27:16 +02:00
Jordan Justen
df9c8b758a kvm: add kvm_readonly_mem_enabled
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1369816047-16384-3-git-send-email-jordan.l.justen@intel.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29 08:15:35 -05:00
Paolo Bonzini
6eebf958ab osdep, kvm: rename low-level RAM allocation functions
This is preparatory to the introduction of a separate freeing API.

Reported-by: Amos Kong <akong@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Message-id: 1368454796-14989-2-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-14 08:53:31 -05:00
Anthony Liguori
8ca27ce2e1 Merge remote-tracking branch 'afaerber/qom-cpu' into staging
# By Igor Mammedov (21) and others
# Via Andreas Färber
* afaerber/qom-cpu: (29 commits)
  Drop redundant resume_all_vcpus() from main()
  cpus: Fix pausing TCG CPUs while in vCPU thread
  target-i386: Replace cpuid_*features fields with a feature word array
  target-i386: Break CPUID feature definition lines
  target-i386/kvm.c: Code formatting changes
  target-i386: Group together level, xlevel, xlevel2 fields
  pc: Implement QEMUMachine::hot_add_cpu hook
  QMP: Add cpu-add command
  Add hot_add_cpu hook to QEMUMachine
  target-i386: Move APIC to ICC bus
  target-i386: Attach ICC bus to CPU on its creation
  target-i386: Introduce ICC bus/device/bridge
  cpu: Move cpu_write_elfXX_note() functions to CPUState
  kvmvapic: Make dependency on sysbus.h explicit
  target-i386: Replace MSI_SPACE_SIZE with APIC_SPACE_SIZE
  target-i386: Do not allow to set apic-id once CPU is realized
  target-i386: Introduce apic-id CPU property
  target-i386: Introduce feat2prop() for CPU properties
  acpi_piix4: Add infrastructure to send CPU hot-plug GPE to guest
  cpu: Add helper cpu_exists(), to check if CPU with specified id exists
  ...
2013-05-02 10:57:01 -05:00
Stefan Weil
805a250502 Trivial grammar and spelling fixes
similiar -> similar
recieve -> receive
transfered -> transferred
preperation -> preparation

Most changes are in comments, one modifies a parameter name in a function
prototype.

The spelling fixes were made using codespell.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-05-01 20:55:21 +04:00
Jens Freimann
c72bf46825 cpu: Move cpu_write_elfXX_note() functions to CPUState
Convert cpu_write_elfXX_note() functions to CPUClass methods and pass
CPUState as argument. Update target-i386 accordingly.

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
[AF: Retain stubs as CPUClass' default method implementation; style changes]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01 13:04:19 +02:00
Igor Mammedov
066e9b2710 cpu: Introduce CPU hot-plug notifier
Hot-add CPU event will be distributed to acpi_piix4 and rtc_cmos.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01 13:04:17 +02:00
Igor Mammedov
13eed94ed5 cpu: Call cpu_synchronize_post_init() from DeviceClass::realize()
If hotplugged, synchronize CPU state to KVM.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01 13:04:17 +02:00
Igor Mammedov
c4cfef5e8a cpu: Make kvm-stub.o available outside softmmu
It will provide stubs for *-user targets once softmmu-specific calls
are attempted from common CPU code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01 13:04:17 +02:00