Fix a typo where "EL2" was written but "EL3" intended.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1454506721-11843-2-git-send-email-peter.maydell@linaro.org
The last two arguments to these functions are the last and first bit to
check relative to the base. The code was using incorrectly the first
bit and the number of bits. Fix this in cpu_physical_memory_get_dirty
and cpu_physical_memory_all_dirty. This requires a few changes in the
iteration; change the code in cpu_physical_memory_set_dirty_range to
match.
Fixes: 5b82b70
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Leon Alrae <leon.alrae@imgtec.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-id: 1455113505-11237-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If the FIS or DMA engines are already started, do not allow them to be
"restarted." As a side-effect of this change, the migration post-load
routine must be modified to cope. If the engines are listed as "on"
in the migrated registers, they must be cleared to allow the startup
routine to see the transition from "off" to "on".
As a second side-effect, the extra argument to ahci_cond_engine_start
is removed in favor of consistent behavior.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1454103689-13042-5-git-send-email-jsnow@redhat.com
Currently, we let ahci_cond_start_engines reject weird configurations
where either the DMA (CLB) or FIS engines are said to be started, but
their matching on/off control bit is toggled off.
There should be no way to achieve this, since any time you toggle the
control bit off, the status bit should always follow synchronously.
Preparing for a refactor in cond_start_engines, move the rejection logic
straight up into post_load.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1454103689-13042-4-git-send-email-jsnow@redhat.com
Instead of relying on ahci_cond_start_engines to maintain the
engine status indicators itself, have the lower-layer CLB and FIS mapper
helpers do it themselves.
This makes the cond_start routine slightly nicer to read, and makes sure
that the status indicators will always be correct.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1454103689-13042-3-git-send-email-jsnow@redhat.com
Coverity noticed that some variables are only used by debug prints, and
called them unused. Always compile the print statements. While we're
here, print to stderr as well.
Bonus: Fix a debug printf I broke in f31937aa8
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Touched up commit message. --js]
Message-id: 1454971529-14830-1-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1453225191-11871-7-git-send-email-jsnow@redhat.com
Split apart the ide_transfer_stop function into two versions: one that
interrupts and one that doesn't. The one that doesn't can be used to
halt any PIO transfers that are in the DRQ phase. It will not halt
any PIO transfers that are currently in the process of buffering data
for the guest to read.
Signed-off-by: John Snow <jsnow@redhat.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[Renamed 'etf' to 'end_transfer_func' --js]
Message-id: 1453225191-11871-6-git-send-email-jsnow@redhat.com
Target the drain for just one device.
Signed-off-by: John Snow <jsnow@redhat.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1453225191-11871-5-git-send-email-jsnow@redhat.com
Buffered DMA cancellation was added to ATAPI devices and implemented
for the BMDMA HBA. Move the code over to common IDE code and allow
it to be used for any HBA.
Signed-off-by: John Snow <jsnow@redhat.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1453225191-11871-4-git-send-email-jsnow@redhat.com
Shuffle the reset function upwards.
Signed-off-by: John Snow <jsnow@redhat.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1453225191-11871-3-git-send-email-jsnow@redhat.com
This command is meant for ATAPI devices only, prohibit acknowledging it with
a command aborted response when an IDE device is busy.
Signed-off-by: John Snow <jsnow@redhat.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1453225191-11871-2-git-send-email-jsnow@redhat.com
We assume (and check for in configure) 4.2 or later now. In reality
all of the removed checks are for far older versions.
FMT_ioreq_size is no longer needed.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Now that we no longer support Xen 4.2 and earlier only the <470 case
needs this so it can live with all the others.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Now that 4.2 and earlier are no longer supported "xc_interface *" is
always the right type for the xc interface handle.
With this we can also simplify the handling of the xenforeignmemory
compatibility wrapper by making xenforeignmemory_handle ==
xc_interface, instead of an xc_interface* and remove various uses of &
and *h.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
The xc version is now always present.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Xen 4.2 become unsupported upstream in 09/2015 (see
http://wiki.xen.org/wiki/Xen_Release_Features). However as far as the
interfaces provided by the toolstack libraries go 4.2 and 4.3 are
indistinguishable.
Therefore drop support for Xen 4.1 and earlier which removes a whole
pile of compatibility code which makes future work (to use stable
library interfaces provided by upstream) more difficult. In particular
all supported versions now use a pointer as a libxc handle (4.1 and
earlier used an integer, resulting in various shim layers).
Also Xen 4.2 was the first version of Xen to formally support upstream
QEMU (as a preview) so that makes sense as a cut-off now.
This change drops all the configure-y and resulting ifdefs in a mostly
mechanical way. A follow up will refactor wrappers which are now
unused.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
* Coverity fixes for IPMI (Corey), i386 (Paolo), qemu-char (Paolo)
* at long last, fail on wrong .pc files if -m32 is in use (Daniel)
* qemu-char regression fix (Daniel)
* SAS1068 device (Paolo)
* memory region docs improvements (Peter)
* target-i386 cleanups (Richard)
* qemu-nbd docs improvements (Sitsofe)
* thread-safe memory hotplug (Stefan)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* switch to C11 atomics (Alex)
* Coverity fixes for IPMI (Corey), i386 (Paolo), qemu-char (Paolo)
* at long last, fail on wrong .pc files if -m32 is in use (Daniel)
* qemu-char regression fix (Daniel)
* SAS1068 device (Paolo)
* memory region docs improvements (Peter)
* target-i386 cleanups (Richard)
* qemu-nbd docs improvements (Sitsofe)
* thread-safe memory hotplug (Stefan)
# gpg: Signature made Tue 09 Feb 2016 16:09:30 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
* remotes/bonzini/tags/for-upstream: (33 commits)
qemu-char, io: fix ordering of arguments for UDP socket creation
MAINTAINERS: add all-match entry for qemu-devel@
get_maintainer.pl: fall back to git if only lists are found
target-i386: fix PSE36 mode
docs/memory.txt: Improve list of different memory regions
ipmi_bmc_sim: Add break to correct watchdog NMI check
ipmi_bmc_sim: Fix off by one in check.
ipmi: do not take/drop iothread lock
target-i386: Deconstruct the cpu_T array
target-i386: Tidy gen_add_A0_im
target-i386: Rewrite leave
target-i386: Rewrite gen_enter inline
target-i386: Use gen_lea_v_seg in pusha/popa
target-i386: Access segs via TCG registers
target-i386: Use gen_lea_v_seg in stack subroutines
target-i386: Use gen_lea_v_seg in gen_lea_modrm
target-i386: Introduce mo_stacksize
target-i386: Create gen_lea_v_seg
char: fix repeated registration of tcp chardev I/O handlers
kvm-all: trace: strerror fixup
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Two wrongs make a right, but they should be fixed anyway.
Cc: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1455015557-15106-1-git-send-email-pbonzini@redhat.com>
Add an entry to MAINTAINERS that matches every patch, and requests the
user send patches to qemu-devel@nongnu.org.
It's not 100% obvious to project newcomers that all patches should be sent
there; checkpatch doesn't say so, and since it mentions other lists to CC,
the wording "the list" from the SubmitAPatch wiki page can be taken
to mean only those lists, not the main list too.
The F: entries were taken from a similar entry in the Linux kernel.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Message-Id: <1454987065-12961-1-git-send-email-swarren@wwwdotorg.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It's not 100% obvious to project newcomers that all patches should be sent
there; checkpatch doesn't say so, and since it mentions other lists to CC,
the wording "the list" from the SubmitAPatch wiki page can be taken
to mean only those lists, not the main list too. We would like therefore
to add a catch-all entry for qemu-devel@nongnu.org.
On its own, this would break fallback to git, because now every file
has a maintainer of sorts. Modify get_maintainer.pl so that mailing
lists (L: lines) no longer prevent the fallback, only humans (M:
entries).
Several pre-existing entries have a list but no human. These now
fall back to git. That's a feature.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Message-Id: <1454987065-12961-1-git-send-email-swarren@wwwdotorg.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(pde & 0x1fe000) is a 32-bit integer; when shifting it
into bits 39-32 the result is zero. Fix it by making the
mask (and thus the result of the AND) a 64-bit integer.
Reported by Coverity.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Improve the part of the memory region documentation which describes
the various different kinds of memory region:
* add the missing types ROM, IOMMU and reservation
* mention the functions used to initialize each type, as a hint
for finding the API docs and examples of use
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1454007297-3971-1-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It was falling through when it should have been a break. Found by
Coverity. The logic could be simplified a bit with a fallthrough,
probably the original thought, but that would be less clear, I think.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Shannon Zhao <zhaoshenglong@huawei.com>
Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Message-Id: <1452519152-6500-3-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Found by Paolo.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Shannon Zhao <zhaoshenglong@huawei.com>
Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Message-Id: <1452519152-6500-2-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is not necessary and actually causes a hang; it was probably copied
and pasted from KVM code, that is one of the very few places that run
outside iothread lock.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All references to cpu_T are done with a constant index. It aids
readability to decompose the array into two scalar variables.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1436426122-12276-11-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Merge gen_op_addl_A0_im and gen_op_addq_A0_im into gen_add_A0_im
and clean up the ifdef.
Replace the one remaining user of gen_op_addl_A0_im with gen_add_A0_im.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-10-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Unify the code across stack pointer widths. Fix the note about
not updating ESP before the potential exception.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-9-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use gen_lea_v_seg for centralized segment base knowledge. Unify
code across 32- and 64-bit. Fix note about "must save state"
before using the out-of-line helpers.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-8-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
More centralization of handling of segment bases.
Also fixes the note about 16-bit wrap around not fully handled.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-7-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Having segs[].base as a register significantly improves code
generation for real and protected modes, particularly for TBs
that have multiple memory references where the segment base
can be held in a hard register through the TB.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-6-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
I.e. gen_push_v, gen_pop_T0, gen_stack_A0.
More centralization of handling of segment bases.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-5-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Centralize handling of segment bases.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-4-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Centralize computation of a MO_SIZE for the stack pointer.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-3-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add forgotten zero-extension in the TARGET_X86_64, !CODE64, ss32 case;
use this new function to implement gen_string_movl_A0_EDI,
gen_string_movl_A0_ESI, gen_add_A0_ds_seg.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-2-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In previous commit:
commit f2001a7e05
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Tue Jan 19 11:14:30 2016 +0000
char: don't assume telnet initialization will not block
The code which writes the telnet initialization sequence moved
to an event loop callback. If the TCP chardev is opened as a
server in blocking mode (ie -serial telnet:0.0.0.0:3000,server,wait)
this results in a state where the TCP chardev is connected, but not
yet ready to send/recv data when virtual hardware is created.
When the virtual hardware initialization registers its chardev
callbacks, it triggers tcp_chr_update_read_handler, which will
add I/O watches to the connection.
When the telnet initialization finally runs, it will then call
tcp_chr_connect to finish the connection setup. This will in
turn add I/O watches to the connection too.
There are now two sets of I/O watches registered on the same
connection. This ultimately causes data loss on the connection,
for example, when typing into the telnet console only every
second byte is echoed back to the client.
The same flaw can affect channels running with TLS encryption
too, since they also have delayed connection setup completion.
The fix is to update tcp_chr_update_read_handler so that it
avoids registering watches if the connection is not fully
setup yet.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1454939707-10869-1-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <1454355464-14999-1-git-send-email-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
cpu_to_be64w can't be used to make unaligned stores, but stq_be_p can.
Also, the st?_be_p takes a void* so it is more clearly suited to the
case where you're writing into a byte buffer.
Use the st?_be_p family of functions everywhere in nbd/server.c.
Signed-off-by: John Snow <jsnow@redhat.com>
[Changed to use st?_be_p everywhere. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
On kernels build without CONFIG_TRACING kvm_stat will bail out even
when traces are not used. This is not very helpful, especially if the
user can't install a new kernel. Instead, we should warn the user and
fall back to debugfs statistics.
These changes check if trace statistics were selected without kernel
support, warn with a small timeout, set the debugfs statistics option
to True and the tracefs one to False.
Fixes: 7aa4ee5 ('scripts/kvm/kvm_stat: Improve debugfs access checking')
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Message-Id: <1454485291-43849-2-git-send-email-frankja@linux.vnet.ibm.com>
[Exit if -t is passed explicitly. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Capitalise the first letter of sentences (and reword for grammar) the
options section of qemu-nbd.texi.
Signed-off-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Message-Id: <1451979212-25479-4-git-send-email-sitsofe@yahoo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Change some spacing.
- Add disconnect usage to synopsis.
- Highlight the command and its options in the synopsis.
- Fix up the grammar in the description.
- Move filename variable description out of the option table.
- Add a description of the dev variable.
- Remove duplicate entry for --format.
- Reword --discard documentation.
- Add --detect-zeroes documentation.
- Add reference to qemu man page to see also section.
Signed-off-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Message-Id: <1451979212-25479-3-git-send-email-sitsofe@yahoo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Indented lines in the texi meant the perlpod produced interpreted the
paragraph as being verbatim (thus formatting codes were not
interpreted). Fix this by un-indenting problem lines.
Signed-off-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Message-Id: <1451979212-25479-2-git-send-email-sitsofe@yahoo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This adds the SAS1068 device, a SAS disk controller used in VMware that
is oldish but widely supported and has decent performance. Unlike
megasas, it presents itself as a SAS controller and not as a RAID
controller. The device corresponds to the mptsas kernel driver in
Linux.
A few small things in the device setup are based on Don Slutz's old
patch, but the device emulation was written from scratch based on Don's
SeaBIOS patch and on the FreeBSD and Linux drivers. It is 2400 lines
shorter than Don's patch (and roughly the same size as MegaSAS---also
because it doesn't support the similar SPI controller), implements SCSI
task management functions (with asynchronous cancellation), supports
big-endian hosts, has complete support for migration and follows the
QEMU coding standards much more closely.
To write the driver, I first split Don's patch in two parts, with
the configuration bits in one file and the rest in a separate file.
I first left mptconfig.c in place and rewrote the rest, then deleted
mptconfig.c as well. The configuration pages are still based mostly on
VirtualBox's, though not exactly the same. However, the implementation
is completely different. The contents of the pages themselves should
not be copyrightable.
Signed-off-by: Don Slutz <Don@CloudSwitch.com>
Message-Id: <1347382813-5662-1-git-send-email-Don@CloudSwitch.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SAS adapters need to access them in order to publish the SAS addresses
of the end devices connected to them.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
