Commit Graph

29824 Commits

Author SHA1 Message Date
Vlad Yasevich
02d38fcb2c net: Update netdev peer on link change
When a link change occurs on a backend (like tap), we currently do
not propage such change to the nic.  As a result, when someone turns
off a link on a tap device, for instance, then a guest doesn't see
that change and continues to try to send traffic or run DHCP even
though the lower-layer is disconnected.  This is OK when the network
is set up as a HUB since the the guest may be connected to other HUB
ports too, but when it's set up as a netdev, it makes thinkgs worse.

The patch addresses this by setting the peers link down only when the
peer is not a HUBPORT device.  With this patch, in the following config
  -netdev tap,id=net0 -device e1000,mac=XXXXX,netdev=net0
when net0 link is turned off, the guest e1000 shows lower-layer link
down. This allows guests to boot much faster in such configurations.
With windows guest, it also allows the network to recover properly
since windows will not configure the link-local IPv4 address, and
when the link is turned on, the proper address address is configured.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-09 13:33:20 +01:00
Amos Kong
cae2e5562c virtio-net: don't update mac_table in error state
mac_table was always cleaned up first in handling
VIRTIO_NET_CTRL_MAC_TABLE_SET command, and we din't recover
mac_table content in error state, it's not correct.

This patch makes all the changes in temporal variables,
only update the real mac_table if everything is ok.
We won't change mac_table in error state, so rxfilter
notification isn't needed.

This patch also fixed same problame in
 http://lists.nongnu.org/archive/html/qemu-devel/2013-11/msg01188.html
 (not merge)

I will send patch for virtio spec to clarifying this change.

Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-09 13:33:20 +01:00
Vincenzo Maffione
aee09baf91 MAINTAINERS: Add netmap maintainers
Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-09 13:33:20 +01:00
Vincenzo Maffione
58952137b0 net: Adding netmap network backend
This patch adds support for a network backend based on netmap.
netmap is a framework for high speed packet I/O. You can use it
to build extremely fast traffic generators, monitors, software
switches or network middleboxes. Its companion software switch
VALE lets you interconnect virtual machines.
netmap and VALE are implemented as a non-intrusive kernel module,
support NICs from multiple vendors, are part of standard FreeBSD
distributions and available in source format for Linux too.

To compile QEMU with netmap support, use the following configure
options:
    ./configure [...] --enable-netmap --extra-cflags=-I/path/to/netmap/sys
where "/path/to/netmap" contains the netmap source code, available at
    http://info.iet.unipi.it/~luigi/netmap/

The same webpage contains more information about the netmap project
(together with papers and presentations).

Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-09 13:33:19 +01:00
Stefan Weil
5ad04fb6f1 libcacard: Fix compilation for older versions of glib (bug #1258168)
See https://bugs.launchpad.net/bugs/1258168

libcacard/vscclient.c: In function 'do_socket_read':
libcacard/vscclient.c:410: warning: implicit declaration of function 'g_warn_if_reached'
libcacard/vscclient.c:410: warning: nested extern declaration of 'g_warn_if_reached'
libcacard/vscclient.c: In function 'main':
libcacard/vscclient.c:763: warning: implicit declaration of function 'g_byte_array_unref'
libcacard/vscclient.c:763: warning: nested extern declaration of 'g_byte_array_unref'
...
libcacard/vscclient.o: In function `do_socket_read':
libcacard/vscclient.c:410: undefined reference to `g_warn_if_reached'
libcacard/vscclient.o: In function `main':
libcacard/vscclient.c:763: undefined reference to `g_byte_array_unref'

g_warn_if_reached was added in glib 2.16, and g_byte_array_unref is
supported since glib 2.22. QEMU requires glib 2.12, so both names must
not be used.

Instead of showing a warning for code which should not be reached,
vscclient better stop running, so g_warn_if_reached is not useful for
vscclient.

In libcacard/vsclient.c, g_byte_array_unref can be replaced by
g_byte_array_free. This is not generally true, so adding a compatibility
layer in include/glib-compat.h is no option here.

Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Reported-by: Don Slutz <dslutz@verizon.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2013-12-09 12:19:05 +02:00
Gerd Hoffmann
d58ce68a45 intel-hda: fix position buffer
Fix position buffer updates to use the correct stream offset.

Without this patch both IN (record) and OUT (playback) streams
will update the IN buffer positions.  The linux kernel notices
and complains:
  hda-intel: Invalid position buffer, using LPIB read method instead.

The bug may also lead to glitches when recording and playing
at the same time:
  https://bugzilla.redhat.com/show_bug.cgi?id=947785

Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-09 09:19:26 +01:00
Paolo Bonzini
7f0ba7bb43 adlib: fix patching of port I/O addresses
Commit 2b21fb5 (adlib: sort offsets in portio registration, 2013-08-14)
fixed the offsets in adlib_portio_list, but forgot the matching indices
in adlib_realizefn.

Reported at http://virtuallyfun.superglobalmegacorp.com/?p=3616 by
"neozeed".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-09 09:19:26 +01:00
Gerd Hoffmann
0e8ae611bd audio: adjust pulse to 100Hz wakeup rate
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-09 09:19:26 +01:00
Hans de Goede
40a814b0b1 audio: Lower default wakeup rate to 100 times / second
This is more then plenty to keep audio card fifos filles / emptied.

This drops host cpu-load for audio playback inside a linux vm from
13% to 9%.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-09 09:19:26 +01:00
Richard Henderson
a1d22a367d target-cris: Use new qemu_ld/st opcodes
Using the new opcodes we can reduce if/else trees to
a single statement.

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-12-08 09:36:02 +01:00
Stefan Weil
b1829cdebe qxl: Add missing trace.h (fix broken build)
Commit ac86048bcd removed trace.h from
console.h and ignored the fact that qxl-render.c needs this file
(it includes qxl.h which includes console.h which included trace.h).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-12-07 22:26:07 +04:00
Anthony Liguori
d2aa90cda8 vfio-pci updates include:
- Update linux-headers to include KVM-VFIO device support
  - Enable QEMU support for KVM-VFIO device
  - Additional Nvidia x-vga quirk to ACK MSI interrupts
  - Debug options to disable MSI/X KVM acceleration
  - Fix to cleanup MSI-X vectors on shutdown and avoid IRQ route leaks
 
 The KVM-VFIO device support enables KVM to manage how it handles
 coherency instructions in the presence of non-coherent I/O.  Dave
 Airlie had noted that the Nvidia MSI ACK support here may just be
 scratching the surface, but it's better than what we have now and
 it's only enabled via the x-vga option, so I'm willing to add since
 it does enable some users.
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Merge remote-tracking branch 'awilliam/tags/vfio-pci-for-qemu-20131206.0' into staging

vfio-pci updates include:
 - Update linux-headers to include KVM-VFIO device support
 - Enable QEMU support for KVM-VFIO device
 - Additional Nvidia x-vga quirk to ACK MSI interrupts
 - Debug options to disable MSI/X KVM acceleration
 - Fix to cleanup MSI-X vectors on shutdown and avoid IRQ route leaks

The KVM-VFIO device support enables KVM to manage how it handles
coherency instructions in the presence of non-coherent I/O.  Dave
Airlie had noted that the Nvidia MSI ACK support here may just be
scratching the surface, but it's better than what we have now and
it's only enabled via the x-vga option, so I'm willing to add since
it does enable some users.

# gpg: Signature made Fri 06 Dec 2013 12:28:19 PM PST using RSA key ID 3BB08B22
# gpg: Can't check signature: public key not found

# By Alex Williamson
# Via Alex Williamson
* awilliam/tags/vfio-pci-for-qemu-20131206.0:
  vfio-pci: Release all MSI-X vectors when disabled
  vfio-pci: Add debug config options to disable MSI/X KVM support
  vfio-pci: Fix Nvidia MSI ACK through 0x88000 quirk
  vfio-pci: Make use of new KVM-VFIO device
  linux-headers: Update from v3.13-rc3

Message-id: 20131206204715.16731.12627.stgit@bling.home
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-07 07:47:24 -08:00
Anthony Liguori
93531372f0 Merge remote-tracking branch 'stefanha/block' into staging
# By Paolo Bonzini (17) and others
# Via Stefan Hajnoczi
* stefanha/block: (48 commits)
  qemu-iotests: filter QEMU monitor \r\n
  aio: make aio_poll(ctx, true) block with no fds
  block: clean up bdrv_drain_all() throttling comments
  qcow2: use start_of_cluster() and offset_into_cluster() everywhere
  qemu-img: decrease progress update interval on convert
  qemu-img: round down request length to an aligned sector
  qemu-img: dynamically adjust iobuffer size during convert
  block/iscsi: set bs->bl.opt_transfer_length
  block: add opt_transfer_length to BlockLimits
  block/iscsi: set bdi->cluster_size
  qemu-img: fix usage instruction for qemu-img convert
  qemu-img: add support for skipping zeroes in input during convert
  qemu-nbd: add doc for option -f
  qemu-iotests: add test for snapshot in qemu-img convert
  qemu-img: add -l for snapshot in convert
  qemu-iotests: add 058 internal snapshot export with qemu-nbd case
  qemu-nbd: support internal snapshot export
  snapshot: distinguish id and name in load_tmp
  qemu-iotests: Split qcow2 only cases in 048
  qemu-iotests: Clean up spaces in usage output
  ...

Message-id: 1386347807-27359-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-07 07:35:31 -08:00
Anthony Liguori
0c0cb6a237 Merge remote-tracking branch 'qemu-kvm/uq/master' into staging
# By Alex Williamson (1) and others
# Via Paolo Bonzini
* qemu-kvm/uq/master:
  target-i386: fix cpuid leaf 0x0d
  qemu: mempath: prefault pages manually (v4)
  kvm: Query KVM for available memory slots

Message-id: 1386345276-9803-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-07 07:35:25 -08:00
Anthony Liguori
3c88da3c24 Update seabios to master snapshot (pre-1.7.4).
Update vgabios, switch from lgplvgabios to seavgabios.
 Update build process to build both 128k and 256k bios versions.
 Use 256k bios for pc-*-2.0+ machine types.
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Merge remote-tracking branch 'kraxel/tags/pull-seabios-31b8b4e-1' into staging

Update seabios to master snapshot (pre-1.7.4).
Update vgabios, switch from lgplvgabios to seavgabios.
Update build process to build both 128k and 256k bios versions.
Use 256k bios for pc-*-2.0+ machine types.

# gpg: Signature made Fri 06 Dec 2013 12:01:24 AM PST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found

# By Gerd Hoffmann
# Via Gerd Hoffmann
* kraxel/tags/pull-seabios-31b8b4e-1:
  pc: switch 2.0 machine types to large seabios binary
  roms: update vgabios binaries
  roms: update seabios binaries
  roms: enable seabios cross builds
  roms: build two seabios binaries
  roms: update seabios submodule to 31b8b4eea9d9ad58a73b22a6060d3ac1c419c26d
  add firmware to machine options
  add pc-{i440fx,q35}-2.0 machine types

Message-id: 1386322527-23148-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-07 07:35:16 -08:00
Anthony Liguori
2a576ee6e3 Merge remote-tracking branch 'otubo/seccomp' into staging
# By Paul Moore
# Via Eduardo Otubo
* otubo/seccomp:
  seccomp: add kill() to the syscall whitelist

Message-id: 1386075077-3240-1-git-send-email-otubo@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-07 07:35:01 -08:00
Anthony Liguori
0a0ee0b93b Block patches for 2.0 (flushing block-next)
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Merge remote-tracking branch 'kwolf/tags/for-anthony' into staging

Block patches for 2.0 (flushing block-next)

# gpg: Signature made Fri 29 Nov 2013 08:43:18 AM PST using RSA key ID C88F2FD6
# gpg: Can't check signature: public key not found

# By Peter Lieven (17) and others
# Via Kevin Wolf
* kwolf/tags/for-anthony: (41 commits)
  qemu-iotests: Add sample image and test for VMDK version 3
  vmdk: Allow read only open of VMDK version 3
  qemu-iotests: Filter out 'qemu-io> ' prompt
  qemu-iotests: Filter qemu-io output in 025
  block: Use BDRV_O_NO_BACKING where appropriate
  qemu-iotests: Test snapshot mode
  block: Enable BDRV_O_SNAPSHOT with driver-specific options
  qemu-iotests: Make test case 030, 040 and 055 deterministic
  qemu-iotest: Add pause_drive and resume_drive methods
  blkdebug: add "remove_break" command
  qemu-iotests: Drop local version of cancel_and_wait from 040
  sheepdog: support user-defined redundancy option
  sheepdog: refactor do_sd_create()
  qdict: Optimise qdict_do_flatten()
  qdict: Fix memory leak in qdict_do_flatten()
  MAINTAINERS: add sheepdog development mailing list
  COW: Extend checking allocated bits to beyond one sector
  COW: Speed up writes
  qapi: Change BlockDirtyInfo to list
  block: per caller dirty bitmap
  ...

Message-id: 1385743555-27888-1-git-send-email-kwolf@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-06 12:59:58 -08:00
Anthony Liguori
9ed5dacbfa Merge remote-tracking branch 'sstabellini/xen-2013-12-01' into staging
# By Paul Durrant (1) and Wei Liu (1)
# Via Stefano Stabellini
* sstabellini/xen-2013-12-01:
  xen-pvdevice: make device-id property compulsory
  xen: fix two errors when debug is enabled

Message-id: alpine.DEB.2.02.1312011829000.3198@kaball.uk.xensource.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-06 12:58:28 -08:00
Anthony Liguori
cdac7a7184 Merge remote-tracking branch 'rth/auxv-2' into staging
# By Richard Henderson
# Via Richard Henderson
* rth/auxv-2:
  linux-user: Use qemu_getauxval for AT_EXECFD
  util: Use qemu_getauxval in linux qemu_cache_utils_init
  tcg-s390: Use qemu_getauxval in query_facilities
  tcg-arm: Use qemu_getauxval
  tcg-ppc64: Use qemu_getauxval
  osdep: Create qemu_getauxval and qemu_init_auxval

Message-id: 1385757754-10702-1-git-send-email-rth@twiddle.net
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-06 12:57:21 -08:00
Anthony Liguori
a55d121f4a Merge remote-tracking branch 'riku/linux-user-for-upstream' into staging
# By Erik de Castro Lopo (2) and others
# Via Riku Voipio
* riku/linux-user-for-upstream:
  linux-user: pass correct parameter to do_shmctl()
  linux-user: create target_structs header to place ipc_perm and shmid_ds
  flatload: fix non-GOT relocations
  linux-user: Implement handling of 5 POSIX timer syscalls.
  linux-user: Add target struct defs needed for POSIX timer syscalls.

Message-id: cover.1385732338.git.riku.voipio@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-06 12:56:51 -08:00
Anthony Liguori
e679f05248 Improvements for usb3 bulk stream (usb core, xhci).
Bugfixes for uas emulation.
 Add remote wakeup support for ehci.
 Add suspend support for xhci.
 Misc minor tweaks and fixes.
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'kraxel/tags/pull-usb-1' into staging

Improvements for usb3 bulk stream (usb core, xhci).
Bugfixes for uas emulation.
Add remote wakeup support for ehci.
Add suspend support for xhci.
Misc minor tweaks and fixes.

# gpg: Signature made Thu 28 Nov 2013 11:44:49 PM PST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found

# By Hans de Goede (11) and others
# Via Gerd Hoffmann
* kraxel/tags/pull-usb-1:
  usb: move usb_{hi,lo} helpers to header file.
  usb: add vendor request defines
  trace-events: Clean up after removal of old usb-host code
  Revert "usb-tablet: Don't claim wakeup capability for USB-2 version"
  ehci: implement port wakeup
  xhci: Call usb_device_alloc/free_streams
  usb: Add usb_device_alloc/free_streams
  usb: Add max_streams attribute to endpoint info
  uas: s/ui/iu/
  uas: Fix response iu struct definition
  uas: Bounds check tags when using streams
  uas: Streams are numbered 1-y, rather then 0-x
  uas: Fix / cleanup usb_uas_task error handling
  uas: Only use report iu-s for task_mgmt status reporting
  scsi: Add 2 new sense codes needed by uas
  xhci: add support for suspend/resume
  xhci: Add a few missing checks for disconnected devices

Message-id: 1385712381-30918-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-06 12:54:36 -08:00
Anthony Liguori
783eb67e7a Merge remote-tracking branch 'mjt/trivial-patches' into staging
# By Stefan Weil (9) and others
# Via Michael Tokarev
* mjt/trivial-patches:
  eeprom93xx: fix coding style
  hw/ppc/mac.h: remove unused BIOS_FILENAME definition
  Don't crash on keyboard input with no handler
  libcacard/vcard_emul_nss: Remove unused statement (value stored is never read)
  libcacard/cac: Remove unused statement (value stored is never read)
  virtio-net: fix the indent
  misc: Replace 'struct QEMUTimer' by 'QEMUTimer'
  qobject: Fix compiler warning (missing gnu_printf format attribute)
  acpi-build: Fix compiler warning (missing gnu_printf format attribute)
  .gitignore: Ignore config.status
  gtk: Replace conditional debug messages by trace methods
  console: Replace conditional debug messages by trace methods
  trace: Remove trace.h from hw/usb/hcd-ehci.h (less dependencies)
  trace: Remove trace.h from console.h (less dependencies)

Message-id: 1385408466-13183-1-git-send-email-mjt@msgid.tls.msk.ru
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-06 12:52:50 -08:00
Antony Pavlov
6fedcaa1c5 eeprom93xx: fix coding style
scripts/checkpatch.pl reports about some style problems,
this commit fixes some of them:

ERROR: space prohibited before open square bracket '['
+    .fields      = (VMStateField []) {

ERROR: space prohibited after that '!' (ctx:BxW)
+    if (! eeprom->eecs && eecs) {
         ^

ERROR: space prohibited after that '!' (ctx:WxW)
+    } else if (eeprom->eecs && ! eecs) {
                                ^

ERROR: space prohibited after that '!' (ctx:WxW)
+    } else if (eecs && ! eeprom->eesk && eesk) {
                        ^

ERROR: switch and case should be at the same indent
                     switch (address >> (eeprom->addrbits - 2)) {
+                        case 0:
[...]
+                        case 1:
[...]
+                        case 2:
[...]
+                        case 3:

ERROR: return is not a function, parentheses are not required
+    return (eeprom->eedo);

ERROR: switch and case should be at the same indent
     switch (nwords) {
+        case 16:
+        case 64:
[...]
+        case 128:
+        case 256:
[...]
+        default:

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Cc: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Cc: qemu-trivial@nongnu.org
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-12-06 22:56:51 +04:00
Alex Williamson
3e40ba0faf vfio-pci: Release all MSI-X vectors when disabled
We were relying on msix_unset_vector_notifiers() to release all the
vectors when we disable MSI-X, but this only happens when MSI-X is
still enabled on the device.  Perform further cleanup by releasing
any remaining vectors listed as in-use after this call.  This caused
a leak of IRQ routes on hotplug depending on how the guest OS prepared
the device for removal.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: qemu-stable@nongnu.org
2013-12-06 11:16:40 -07:00
Alex Williamson
b3ebc10c37 vfio-pci: Add debug config options to disable MSI/X KVM support
It's sometimes useful to be able to verify interrupts are passing
through correctly.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-12-06 11:16:29 -07:00
Alex Williamson
96eeeba0db vfio-pci: Fix Nvidia MSI ACK through 0x88000 quirk
When MSI is enabled on Nvidia GeForce cards the driver seems to
acknowledge the interrupt by writing a 0xff byte to the MSI capability
ID register using the PCI config space mirror at offset 0x88000 from
BAR0.  Without this, the device will only fire a single interrupt.
VFIO handles the PCI capability ID/next registers as virtual w/o write
support, so any write through config space is currently dropped.  Add
a check for this and allow the write through the BAR window.  The
registers are read-only anyway.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-12-06 11:16:23 -07:00
Alex Williamson
5b49ab188f vfio-pci: Make use of new KVM-VFIO device
Add and remove groups from the KVM virtual VFIO device as we make
use of them.  This allows KVM to optimize for performance and
correctness based on properties of the group.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-12-06 11:16:13 -07:00
Alex Williamson
bf63839ffa linux-headers: Update from v3.13-rc3
Update to tag v3.13-rc3 (374b105797c3d4f29c685f3be535c35f5689b30e)

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-12-06 11:16:09 -07:00
Stefan Hajnoczi
ac9524dc55 qemu-iotests: filter QEMU monitor \r\n
SMTP does not preserve newlines.  This is normally not a problem if the
email body uses DOS or UNIX newlines consistently.  In 051.out we mix
UNIX newlines with DOS newlines (since QEMU monitor output uses \r\n).

This patch filters the QEMU monitor output so the golden master file
uses UNIX newlines exclusively.

The result is that patches touching 051.out will apply cleanly without
mangling newlines after this commit.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-06 16:53:51 +01:00
Stefan Hajnoczi
d3fa923044 aio: make aio_poll(ctx, true) block with no fds
This patch drops a special case where aio_poll(ctx, true) returns false
instead of blocking if no file descriptors are waiting on I/O.  Now it
is possible to block in aio_poll() to wait for aio_notify().

This change eliminates busy waiting.  bdrv_drain_all() used to rely on
busy waiting to completed throttled I/O requests but this is no longer
required so we can simplify aio_poll().

Note that aio_poll() still returns false when aio_notify() was used.  In
other words, stopping a blocking aio_poll() wait is not considered
making progress.

Adjust test-aio /aio/bh/callback-delete/one which assumed aio_poll(ctx,
true) would immediately return false instead of blocking.

Reviewed-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-06 16:53:51 +01:00
Stefan Hajnoczi
0b06ef3bdd block: clean up bdrv_drain_all() throttling comments
Since cc0681c454 ("block: Enable the new
throttling code in the block layer.") bdrv_drain_all() no longer spins.
The code used to look as follows:

  do {
      busy = qemu_aio_wait();

      /* FIXME: We do not have timer support here, so this is effectively
       * a busy wait.
       */
      QTAILQ_FOREACH(bs, &bdrv_states, list) {
          while (qemu_co_enter_next(&bs->throttled_reqs)) {
              busy = true;
          }
      }
  } while (busy);

Note that throttle requests are kicked but I/O throttling limits are
still in effect.  The loop spins until the vm_clock time allows the
request to make progress and complete.

The new throttling code introduced bdrv_start_throttled_reqs().  This
function not only kicks throttled requests but also temporarily disables
throttling so requests can run.

The outdated FIXME comment can be removed.  Also drop the busy = true
assignment since we overwrite it immediately afterwards.

Reviewed-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-06 16:53:51 +01:00
Hu Tao
ac95acdb8e qcow2: use start_of_cluster() and offset_into_cluster() everywhere
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-06 16:53:50 +01:00
Peter Lieven
405889820b qemu-img: decrease progress update interval on convert
when doing very large jobs updating the progress only every 2%
is too rare.

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-06 16:53:50 +01:00
Peter Lieven
24f833cd43 qemu-img: round down request length to an aligned sector
this patch shortens requests to end at an aligned sector so that
the next request starts aligned.

[Squashed Peter's fix for bdrv_get_info() failure discussed on the
mailing list.
--Stefan]

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-06 16:53:03 +01:00
Gerd Hoffmann
bcf2b7d2af pc: switch 2.0 machine types to large seabios binary
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-06 08:55:42 +01:00
Gerd Hoffmann
6eefccc0bb roms: update vgabios binaries
This also switches from lgplvgabios to seavgabios.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-06 08:55:42 +01:00
Gerd Hoffmann
385724e788 roms: update seabios binaries
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-06 08:55:42 +01:00
Gerd Hoffmann
07403a5a03 roms: enable seabios cross builds
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-06 08:55:42 +01:00
Gerd Hoffmann
94e68caaa0 roms: build two seabios binaries
Adding xhci support to seabios made it jump over the 128k line.
Changing the bios size breaks migration, so we have to keep a
128k seabios binary for old machine types.  New machine types can
use a large 256k bios which should be big enougth for a while.

This patch updates the seabios build process to build seabios twice,
once full featured and once with xen and xhci turned off so the
resulting binary is small enougth to fit into 128k.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-06 08:55:42 +01:00
Gerd Hoffmann
11938d7863 roms: update seabios submodule to 31b8b4eea9d9ad58a73b22a6060d3ac1c419c26d
Updates seabios to git master snapshot.  seabios is in freeze now,
update to final 1.7.4 will follow later this year.

Summary of major changes:

 * Support for acpi table loading from qemu.
 * Support for the xhci host adapter.
 * Support for the pvscsi HBA.
 * Various minor bug fixes.
 * Lots of cleanups.

Full shortlog since 1.7.3 (note that some of these changes have been
cherry-picked into 1.7.3-stable):

Evgeny Budilovsky (1):
      Add pvscsi boot support

Gerd Hoffmann (27):
      coreboot: add cbmem console support
      Add CONFIG_DEBUG_COREBOOT config option
      apm: fix shutdown
      ahci: add missing check for allocation failure
      bochsvga: fallback to stdvga if dispi interface isn't present
      Add generic qemu detection
      Drop coreboot qemu detection
      Add qemu detection to csm
      uas: add (temporary) superspeed stopgap
      usb: add usb_update_pipe()
      usb: add xhci support
      fix buildversion.sh
      build: simplify cross builds
      build: create output dirs in do-kconfig
      build: explicitly set ROM size
      Add qemu_cfg_e820 function.
      Add support for etc/e820 fw_cfg file
      pci: don't reorder entries when moving to 64bit list
      pci: don't map usb host adapters above 4G
      pci: align 64bit pci regions to 1G
      pci: tweak + comment minimum allocations
      pci: log pci windows
      pci: map 64-bit BARs at location provided by emulator
      ahci: zap real mode macros
      ahci: remote some parentheses
      ahci: alloc structs in high memory
      add hw/serialio.c to SRC32SEG

Jonathan A. Kollasch (1):
      vgahooks: add SM720 VGA BIOS hooks for WIN Enterprises MB-60470

Kevin O'Connor (80):
      Fix USB EHCI detection that was broken in hlist conversion of PCIDevices.
      Update README to include info on VARLOW variables.
      PIC code cleanups.
      Move internal timer code from clock.c to a new file timer.c.
      Don't pass khz to pmtimer_setup - it's always PM_TIMER_FREQUENCY.
      Add helper functions to convert timer irqs to milliseconds.
      Improve accuracy of internal timers.
      Rename cpu_khz to TimerKHz.
      Shift CPU TSC down to reduce need for 64bit variables.
      Rename check_timer() function (and similar) to irqtimer_check().
      Rename check_tsc() (and similar) to timer_check() and use u32.
      Separate out timer setup code.
      Unify pmtimer_read() and pittimer_read() code.
      Default unused UMB areas to be read-only.
      Add missing mathcp_setup() call to CSM code.
      Fix bug in CBFS file walking with compressed files.
      Support custom boot menu prompt and custom boot menu key.
      Minor cleanups to smm assembler.
      Add config option to support memory allocations in 9-segment.
      Minor - no need to declare MaxCountCPUs as VARFSEG.
      Minor - simplify rom_reserve().
      Rename tools/ directory to scripts/ directory.
      Update kconfig to latest version.
      build: Don't use vpath makefile directive.
      Move code centered around specific hardware devices to src/hw/
      Move code cenetered around firmware initialization to src/fw/
      build: Reorder makefile source list to group like files together.
      README: Update readme to note scripts/ directory rename and vgasrc/ directory.
      vgabios: Rename stdvga_bpp_factor to stdvga_vram_ratio.
      vgabios: Limit the range of the VBE number of "pages" parameter.
      readme: Minor - fix typo in readme.
      Split x86 specific functions out of util.c/h to new files x86.c/h.
      Move keyboard calling code from util.c to boot.c.
      Rename util.c to string.c and introduce string.h.
      build: Perform compile checking on vgasrc code.
      Move stacks.c definitions from util.h to new file stacks.h.
      Move romfile definitions from util.h to new file romfile.h.
      Move malloc code from pmm.c to new files malloc.c and malloc.h.
      Move function definitions for output.c from util.h to new file output.h.
      Move definition of struct segoff_s from farptr.h to types.h.
      build: Fix import of gcc dependency files.
      Move pirtable definitions from hw/pci.h to std/pirtable.h and util.h.
      Move optionroms.h to std/optionrom.h and util.h.
      Move vbe.h to std/vbe.h.
      Move fw/LegacyBios.h to std/LegacyBios.h and remove csm.h.
      Move fw/smbios.h to std/smbios.h.
      Move fw/mptable.h to std/mptable.h.
      Move fw/acpi.h to std/acpi.h.
      Move pnpbios definition to new file std/pnpbios.h.
      Move pmm definitions to new file std/pmm.h.
      Split disk.h into block.h and std/disk.h.
      Move standard bda type info from biosvar.h to std/bda.h.
      Merge bmp.h, boot.h, jpeg.h, and post.h into util.h.
      Sort the sections of util.h.
      Move PIT setup from clock.c to hw/timer.c.
      Rename hw/cmos.h to hw/rtc.h and copy RTC code from clock.c to hw/rtc.c.
      Move dma code to new file hw/dma.c.
      Remove ioport.h; disperse its contents to other header files.
      Minor - update file comments in src/malloc.c.
      Rename fields of 'struct chs_s' and use in floppy lba2chs().
      Rearrange stack_hop_back() call in wait_irq, check_irqs, and _farcall16.
      Minor - move call16 assembler in romlayout.S.
      Make __call16 use C calling convention and support two passed parameters.
      Update _farcall16() to pass segment of callregs explicitly.
      Support call16() calls after entering 32bit mode from call32().
      Run ahci code entirely in 32bit mode.
      Build different final files for QEMU, coreboot, and CSM.
      Convert op->drive_g from a 16bit pointer to a 32 bit "GLOBALFLAT" pointer.
      megasas: Don't attempt to access 'struct pci_device' at runtime.
      Minor - eliminate the SET_GLOBAL macro.
      Move low-level hardware writing from output.c to new file hw/serialio.c.
      vgabios: Load the DAC palette in "packed" modes on Cirrus and BochsVGA.
      vgabios: Support custom fonts in vga framebuffer text writing.
      vgabios: Add bochsvga "HDTV" resolutions.
      vgabios: Avoid possible divide by zero in bochsvga_set_displaystart.
      vgabios: Work around lack of support for "calll" in x86emu emulation.
      Minor - update file comment on bootsplash.c.
      vgabios: Support allocating an extra stack for vgabios calls and default on.
      vgabios: Move initialization code to new file vgainit.c.
      floppy: Minor - add warnings if timeouts occur.

Michael S. Tsirkin (6):
      acpi: sync FADT flags from PIIX4 to Q35
      acpi_extract.py: document DEVICE directives
      biostables: support looking up RSDP
      romfile_loader: utility to patch in-memory ROM files
      acpi: load and link tables through romfile loader
      acpi: strip compiler info in built-in DSDT if any

Paul Menzel (2):
      ACPI DSDT: Make control method `IQCR` serialized
      hw/usb-xhci.c: Code refactoring to not override initializers in `speed_from_xhci[16]`

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-12-06 08:24:52 +01:00
Liu Jinsong
33f373d7c5 target-i386: fix cpuid leaf 0x0d
Fix cpuid leaf 0x0d which incorrectly parsed eax and ebx.

However, before this patch the CPUID worked fine -- the .offset
field contained the size _and_ was stored in the register that
is supposed to hold the size (eax), and likewise the .size field
contained the offset _and_ was stored in the register trhat is
supposed to hold the offset (ebx).

Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-12-05 18:51:08 +01:00
Peter Lieven
f2521c9023 qemu-img: dynamically adjust iobuffer size during convert
since the convert process is basically a sync operation it might
be benificial in some case to change the hardcoded I/O buffer
size to a greater value.

This patch increases the I/O buffer size if the output
driver advertises an optimal transfer length or discard alignment
that is greater than the default buffer size of 2M.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-05 11:45:24 +01:00
Peter Lieven
7572ddc8db block/iscsi: set bs->bl.opt_transfer_length
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-05 11:45:24 +01:00
Peter Lieven
7337acaf21 block: add opt_transfer_length to BlockLimits
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-05 11:45:24 +01:00
Peter Lieven
1c0704a556 block/iscsi: set bdi->cluster_size
this patch aims to set bdi->cluster_size to the internal page size
of the iscsi target so that enabled callers can align requests
properly.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-05 11:45:24 +01:00
Peter Lieven
049b09825f qemu-img: fix usage instruction for qemu-img convert
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-05 11:45:24 +01:00
Peter Lieven
13c28af87a qemu-img: add support for skipping zeroes in input during convert
we currently do not check if a sector is allocated during convert.
This means if a sector is unallocated that we allocate a bounce
buffer of zeroes, find out its zero later and do not write it
in the best case. In the worst case this can lead to reading
blocks from a raw device (like iSCSI) altough we could easily
know via get_block_status that they are zero and simply skip them.

This patch also fixes the progress output not being at 100% after
a successful conversion.

Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-05 11:45:24 +01:00
Wenchao Xia
4323fdcf94 qemu-nbd: add doc for option -f
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-04 15:19:00 +01:00
Wenchao Xia
f33d287393 qemu-iotests: add test for snapshot in qemu-img convert
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-04 15:19:00 +01:00
Wenchao Xia
ef80654d0d qemu-img: add -l for snapshot in convert
Now qemu-img convert have similar options as qemu-nbd for internal
snapshot.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-04 15:19:00 +01:00