Commit Graph

51258 Commits

Author SHA1 Message Date
John Paul Adrian Glaubitz
3148ff8404 linux-user: Update sh4 syscall definitions to match Linux 4.8
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20170116223140.18634-2-glaubitz@physik.fu-berlin.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2017-02-16 15:29:16 +01:00
Laurent Vivier
a1488b8661 linux-user: manage two new IFLA host message types
Add QEMU_IFLA_GSO_MAX_SEGS and QEMU_IFLA_GSO_MAX_SIZE
in host_to_target_data_link_rtattr().

These two messages are sent by the host kernel when
we use "sudo".

Found with qemu-m68k and Debian etch-m68k (sudo 1.6.8p12-4) and
host kernel 4.7.6-200.fc24.x86_64

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1477530049-15676-1-git-send-email-laurent@vivier.eu>
2017-02-14 18:08:11 +01:00
Lena Djokic
2640077527 linux-user: Fix mq_open
If fourth argument is NULL it should be passed without
using lock_user function which would, in that case, return
EFAULT, and system call supports passing NULL as fourth argument.

Signed-off-by: Lena Djokic <Lena.Djokic@rt-rk.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14 17:18:03 +01:00
Lena Djokic
77c6850fd7 linux-user: Fix readahead
Calculation of 64-bit offset was not correct for all cases.

Signed-off-by: Lena Djokic <Lena.Djokic@rt-rk.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14 17:18:03 +01:00
Lena Djokic
fea243e90a linux-user: Fix inotify_init1 support
This commit adds necessary conversion of argument passed to inotify_init1.
inotify_init1 flags can be IN_NONBLOCK and IN_CLOEXEC which rely on O_NONBLOCK
and O_CLOEXEC and those can have different values on different platforms.

Signed-off-by: Lena Djokic <Lena.Djokic@rt-rk.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14 17:18:03 +01:00
Richard Henderson
6cde51769e linux-user: Fix s390x safe-syscall for z900
The LT instruction was added in the extended immediate facility
introduced with the z9-109 processor.

Cc: Riku Voipio <riku.voipio@iki.fi>
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Fixes: c9bc3437a9
Suggested-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14 17:18:03 +01:00
Riku Voipio
5fbf66e6a1 linux-user: drop __cygwin__ ifdef
linux-user doesn't work on cygwin anyways.

Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14 17:18:03 +01:00
Riku Voipio
b9a0be9239 linux-user: remove ifdef __USER_MISC
This preprocessor macro isn't set anywhere. Remove
the check so -strace can show these options.

Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14 17:18:03 +01:00
Peter Maydell
5dae13cd71 Queued openrisc patches
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Merge remote-tracking branch 'remotes/rth/tags/pull-or-20170214' into staging

Queued openrisc patches

# gpg: Signature made Mon 13 Feb 2017 21:21:03 GMT
# gpg:                using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC  16A4 AD12 70CC 4DD0 279B

* remotes/rth/tags/pull-or-20170214: (24 commits)
  target/openrisc: Optimize for r0 being zero
  target/openrisc: Tidy handling of delayed branches
  target/openrisc: Tidy ppc/npc implementation
  target/openrisc: Optimize l.jal to next
  target/openrisc: Fix madd
  target/openrisc: Implement muld, muldu, macu, msbu
  target/openrisc: Represent MACHI:MACLO as a single unit
  target/openrisc: Implement msync
  target/openrisc: Enable trap, csync, msync, psync for user mode
  target/openrisc: Set flags on helpers
  target/openrisc: Use movcond where appropriate
  target/openrisc: Keep SR_CY and SR_OV in a separate variables
  target/openrisc: Keep SR_F in a separate variable
  target/openrisc: Invert the decoding in dec_calc
  target/openrisc: Put SR[OVE] in TB flags
  target/openrisc: Streamline arithmetic and OVE
  target/openrisc: Rationalize immediate extraction
  target/openrisc: Tidy insn dumping
  target/openrisc: Implement lwa, swa
  target/openrisc: Fix exception handling status registers
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-14 09:55:48 +00:00
Richard Henderson
6597c28d61 target/openrisc: Optimize for r0 being zero
The HW does not special-case r0, but the ABI specifies that r0 should
contain 0.  If we expose this fact to the optimizer, we can simplify
a lot of the generated code.  We must of course verify that r0==0, but
that is trivial to do with a TB flag.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
a01deb36a6 target/openrisc: Tidy handling of delayed branches
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
24c328521b target/openrisc: Tidy ppc/npc implementation
The NPC SPR is really only supposed to be used for FPGA debugging.
It contains the same contents as PC, unless one plays games.  Follow
the or1ksim implementation in flushing delayed branch state when it
is changed.

The PPC SPR need not be updated every instruction, merely when we
exit the TB or attempt to read its contents.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
a8000cb480 target/openrisc: Optimize l.jal to next
This allows the tcg optimizer to see, and fold, all of the
constants involved in a GOT base register load sequence.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
762e22edcd target/openrisc: Fix madd
Note that the specification for lf.madd.s is confused.  It's
the only mention of supposed FPMADDHI/FPMADDLO special registers.
On the other hand, or1ksim implements a somewhat normal non-fused
multiply and add.  Mirror that.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
cc5de49ebe target/openrisc: Implement muld, muldu, macu, msbu
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
6f7332ba71 target/openrisc: Represent MACHI:MACLO as a single unit
Significantly simplifies the implementation of the use of MAC.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
24fc5c0feb target/openrisc: Implement msync
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
20dc52a37c target/openrisc: Enable trap, csync, msync, psync for user mode
Not documented as disabled for user mode.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:15:00 +11:00
Richard Henderson
9fba702bd4 target/openrisc: Set flags on helpers
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
784696d119 target/openrisc: Use movcond where appropriate
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
9745807191 target/openrisc: Keep SR_CY and SR_OV in a separate variables
This significantly streamlines carry and overflow production.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
84775c43f3 target/openrisc: Keep SR_F in a separate variable
This avoids having to keep merging and extracting the flag from SR.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
cf2ae4428f target/openrisc: Invert the decoding in dec_calc
Decoding the opcodes in the right order reduces by 100+ lines.
Also, it happens to put the opcodes in the same order as Chapter 17.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
0c53d7342b target/openrisc: Put SR[OVE] in TB flags
Removes a call at execution time for overflow exceptions.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
9ecaa27e71 target/openrisc: Streamline arithmetic and OVE
Fix incorrect overflow calculation.  Move overflow exception check
to a helper function, to eliminate inline branches.  Remove some
incorrect special casing of R0.  Implement multiply inline.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
6da544a6c4 target/openrisc: Rationalize immediate extraction
The architecture manual is consistent in using "I" for signed
fields and "K" for unsigned fields.  Mirror that.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
111ece5133 target/openrisc: Tidy insn dumping
Avoids warnings from unused variables etc.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
930c3d0074 target/openrisc: Implement lwa, swa
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Stafford Horne
c56e3b8670 target/openrisc: Fix exception handling status registers
I am working on testing instruction emulation patches for the linux
kernel. During testing I found these 2 issues:

 - sets DSX (delay slot exception) but never clears it
 - EEAR for illegal insns should point to the bad exception (as per
   openrisc spec) but its not

This patch fixes these two issues by clearing the DSX flag when not in a
delay slot and by setting EEAR to exception PC when handling illegal
instruction exceptions.

After this patch the openrisc kernel with latest patches boots great on
qemu and instruction emulation works.

Cc: qemu-trivial@nongnu.org
Cc: openrisc@lists.librecores.org
Signed-off-by: Stafford Horne <shorne@gmail.com>
Message-Id: <20170113220028.29687-1-shorne@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
c40413a65e linux-user: Honor CLONE_SETTLS for openrisc
Threads work much better when you set the TLS register.
This was fixed in the upstream kernel for Linux 4.9.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:59 +11:00
Richard Henderson
a0adc417a0 linux-user: Fix openrisc cpu_loop
We need to handle EXCP_DEBUG and EXCP_INTERRUPT.
We need to send signals to the guest using queue_signal.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:58 +11:00
Richard Henderson
ab90233855 linux-user: Add MMAP_SHIFT for openrisc
The page size on openrisc is 8k.  Sync the shift
required for the mmap2 syscall.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:58 +11:00
Richard Henderson
4a09d0bb34 target/openrisc: Rename the cpu from or32 to or1k
This is in keeping with the toolchain and or1ksim.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14 08:14:58 +11:00
Peter Maydell
ec7a9bd5bb Migration
Amit: migration: remove myself as maintainer
         MAINTAINERS: update my email address
   Ashijeet: migrate: Introduce zero RAM checks to skip RAM migration
   Pavel: Postcopy release RAM
   Halil: consolidate VMStateField.start
   Hailiang: COLO: fix setting checkpoint-delay not working properly
          COLO: Shutdown related socket fd while do failover
          COLO: Don't process failover request while loading VM's state
   Me:
      migration: Add VMSTATE_UNUSED_VARRAY_UINT32
      migration: Add VMSTATE_WITH_TMP
      tests/migration: Add test for VMSTATE_WITH_TMP
      virtio-net VMState conversion and new VMSTATE macros
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20170213a' into staging

Migration

  Amit: migration: remove myself as maintainer
        MAINTAINERS: update my email address
  Ashijeet: migrate: Introduce zero RAM checks to skip RAM migration
  Pavel: Postcopy release RAM
  Halil: consolidate VMStateField.start
  Hailiang: COLO: fix setting checkpoint-delay not working properly
         COLO: Shutdown related socket fd while do failover
         COLO: Don't process failover request while loading VM's state
  Me:
     migration: Add VMSTATE_UNUSED_VARRAY_UINT32
     migration: Add VMSTATE_WITH_TMP
     tests/migration: Add test for VMSTATE_WITH_TMP
     virtio-net VMState conversion and new VMSTATE macros

# gpg: Signature made Mon 13 Feb 2017 17:36:39 GMT
# gpg:                using RSA key 0x0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@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: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20170213a:
  virtio/migration: Migrate virtio-net to VMState
  tests/migration: Add test for VMSTATE_WITH_TMP
  migration: Add VMSTATE_WITH_TMP
  migration: Add VMSTATE_UNUSED_VARRAY_UINT32
  COLO: Don't process failover request while loading VM's state
  COLO: Shutdown related socket fd while do failover
  COLO: fix setting checkpoint-delay not working properly
  migration: consolidate VMStateField.start
  migrate: Introduce zero RAM checks to skip RAM migration
  migration: discard non-dirty ram pages after the start of postcopy
  add 'release-ram' migrate capability
  migration: add MigrationState arg for ram_save_/compressed_/page()
  MAINTAINERS: update my email address
  migration: remove myself as maintainer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-13 18:49:26 +00:00
Dr. David Alan Gilbert
982b78c5e3 virtio/migration: Migrate virtio-net to VMState
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20170203160651.19917-5-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Merge fix against Halil's removal of the '_start' field in
    VMSTATE_VBUFFER_MULTIPLY
2017-02-13 17:27:14 +00:00
Dr. David Alan Gilbert
5c379d9031 tests/migration: Add test for VMSTATE_WITH_TMP
Add a test for VMSTATE_WITH_TMP to tests/test-vmstate.c

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20170203160651.19917-4-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:14 +00:00
Dr. David Alan Gilbert
bcf4513129 migration: Add VMSTATE_WITH_TMP
VMSTATE_WITH_TMP is for handling structures where some calculation
or rearrangement of the data needs to be performed before the data
hits the wire.
For example,  where the value on the wire is an offset from a
non-migrated base, but the data in the structure is the actual pointer.

To use it, a temporary type is created and a vmsd used on that type.
The first element of the type must be 'parent' a pointer back to the
type of the main structure.  VMSTATE_WITH_TMP takes care of allocating
and freeing the temporary before running the child vmsd.

The post_load/pre_save on the child vmsd can copy things from the parent
to the temporary using the parent pointer and do any other calculations
needed; it can then use normal VMSD entries to do the actual data
storage without having to fiddle around with qemu_get_*/qemu_put_*

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20170203160651.19917-3-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:14 +00:00
Dr. David Alan Gilbert
b5b5c56957 migration: Add VMSTATE_UNUSED_VARRAY_UINT32
VMSTATE_UNUSED_VARRAY_UINT32 is used to skip a chunk of the stream
that's an n-element array;  note the array size and the dynamic value
read never get multiplied so there's no overflow risk.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20170203160651.19917-2-dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:14 +00:00
zhanghailiang
a8664ba510 COLO: Don't process failover request while loading VM's state
We should not do failover work while the main thread is loading
VM's state. Otherwise the consistent of VM's memory and
device state will be broken.

We will restart the loading process after jump over the stage,
The new failover status 'RELAUNCH' will help to record if we
need to restart the process.

Cc: Eric Blake <eblake@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1484657864-21708-4-git-send-email-zhang.zhanghailiang@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
   Added a missing '(Since 2.9)'
2017-02-13 17:27:13 +00:00
zhanghailiang
c937b9a6db COLO: Shutdown related socket fd while do failover
If the net connection between primary host and secondary host breaks
while COLO/COLO incoming threads are doing read() or write().
It will block until connection is timeout, and the failover process
will be blocked because of it.

So it is necessary to shutdown all the socket fds used by COLO
to avoid this situation. Besides, we should close the corresponding
file descriptors after failvoer BH shutdown them,
Or there will be an error.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1484657864-21708-3-git-send-email-zhang.zhanghailiang@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:13 +00:00
zhanghailiang
479125d53e COLO: fix setting checkpoint-delay not working properly
If we set checkpoint-delay through command 'migrate-set-parameters',
It will not take effect until we finish last sleep chekpoint-delay,
That's will be offensive espeically when we want to change its value
from an extreme big one to a proper value.

Fix it by using timer to realize checkpoint-delay.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Message-Id: <1484657864-21708-2-git-send-email-zhang.zhanghailiang@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:13 +00:00
Halil Pasic
59046ec29a migration: consolidate VMStateField.start
The member VMStateField.start is used for two things, partial data
migration for VBUFFER data (basically provide migration for a
sub-buffer) and for locating next in QTAILQ.

The implementation of the VBUFFER feature is broken when VMSTATE_ALLOC
is used. This however goes unnoticed because actually partial migration
for VBUFFER is not used at all.

Let's consolidate the usage of VMStateField.start by removing support
for partial migration for VBUFFER.

Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>

Message-Id: <20170203175217.45562-1-pasic@linux.vnet.ibm.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:13 +00:00
Ashijeet Acharya
0827b9e97d migrate: Introduce zero RAM checks to skip RAM migration
Migration of a "none" machine with no RAM crashes abruptly as
bitmap_new() fails and thus aborts. Instead place zero RAM checks at
appropriate places to skip migration of RAM in this case and complete
migration successfully for devices only.

Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com>
Message-Id: <1486564125-31366-1-git-send-email-ashijeetacharya@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:13 +00:00
Pavel Butsykin
ced1c6166e migration: discard non-dirty ram pages after the start of postcopy
After the start of postcopy migration there are some non-dirty pages which have
already been migrated. These pages are no longer needed on the source vm so that
we can free them and it doen't hurt to complete the migration.

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Message-Id: <20170203152321.19739-4-pbutsykin@virtuozzo.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:13 +00:00
Pavel Butsykin
53f09a1076 add 'release-ram' migrate capability
This feature frees the migrated memory on the source during postcopy-ram
migration. In the second step of postcopy-ram migration when the source vm
is put on pause we can free unnecessary memory. It will allow, in particular,
to start relaxing the memory stress on the source host in a load-balancing
scenario.

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Message-Id: <20170203152321.19739-3-pbutsykin@virtuozzo.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
   Manually merged in Pavel's 'migration: madvise error_report fixup!'
2017-02-13 17:27:13 +00:00
Pavel Butsykin
9eb1476610 migration: add MigrationState arg for ram_save_/compressed_/page()
Cosmetic patch. The use of ms variable instead of migrate_get_current()
looks nicer, especially when there reuse.

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Message-Id: <20170203152321.19739-2-pbutsykin@virtuozzo.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:13 +00:00
Amit Shah
cee887d969 MAINTAINERS: update my email address
I'm leaving my job at Red Hat, this email address will stop working next week.
Update it to one that I will have access to later.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Message-Id: <1486120433-11628-1-git-send-email-amit.shah@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:13 +00:00
Amit Shah
c77a6c8dd7 migration: remove myself as maintainer
I'm switching jobs, and I'm not sure I can continue maintaining migration.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Message-Id: <1486120416-11566-1-git-send-email-amit.shah@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13 17:27:13 +00:00
Peter Maydell
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

# gpg: Signature made Mon 13 Feb 2017 16:29:26 GMT
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  Makefile: Make "install" depend on "trace-events-all"
  docs: update manpage for stderr->log rename

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-13 16:44:04 +00:00
Fam Zheng
6eab3544f4 Makefile: Make "install" depend on "trace-events-all"
We install this file to data dir but since 0ab8ed18 it's no longer
required by any objects during "make". List it explicitly as a depended
target of install and fix the broken "make install" command.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 20170204143245.15974-1-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-13 13:38:31 +00:00