[Qemu-commits] [qemu/qemu] 5b6a8f: xen: xenguest is not used so is not needed

[Peter Maydell]

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: 5b6a8f4392146c9c130cf510f780dbf5ba7f6046
      
https://github.com/qemu/qemu/commit/5b6a8f4392146c9c130cf510f780dbf5ba7f6046
  Author: Michael Tokarev <mjt@tls.msk.ru>
  Date:   2020-10-19 (Mon, 19 Oct 2020)

  Changed paths:
    M configure
    M hw/i386/xen/xen_platform.c

  Log Message:
  -----------
  xen: xenguest is not used so is not needed

There's no references in only file which includes xenguest.h
to any xen definitions. And there's no references to -lxenguest
in qemu, either. Drop it.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20200727140048.19779-1-mjt@msgid.tls.msk.ru>
[perard: rebased]
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>


  Commit: 2211118a2acb6f36bc497713479050e45a3ec693
      
https://github.com/qemu/qemu/commit/2211118a2acb6f36bc497713479050e45a3ec693
  Author: Eduardo Habkost <ehabkost@redhat.com>
  Date:   2020-10-19 (Mon, 19 Oct 2020)

  Changed paths:
    M include/hw/xen/xen-legacy-backend.h

  Log Message:
  -----------
  xen: Rename XENBACKEND_DEVICE to XENBACKEND

Make the type checking macro name consistent with the TYPE_*
constant.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20200902224311.1321159-58-ehabkost@redhat.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>


  Commit: c4583c8c394ee49ce7d5271f572abd3b000fa9e4
      
https://github.com/qemu/qemu/commit/c4583c8c394ee49ce7d5271f572abd3b000fa9e4
  Author: Paul Durrant <pdurrant@amazon.com>
  Date:   2020-10-19 (Mon, 19 Oct 2020)

  Changed paths:
    M hw/xen/xen-backend.c
    M hw/xen/xen-bus.c
    M include/hw/xen/xen-backend.h
    M include/hw/xen/xen-bus.h

  Log Message:
  -----------
  xen-bus: reduce scope of backend watch

Currently a single watch on /local/domain/X/backend is registered by each
QEMU process running in service domain X (where X is usually 0). The purpose
of this watch is to ensure that QEMU is notified when the Xen toolstack
creates a new device backend area.
Such a backend area is specific to a single frontend area created for a
specific guest domain and, since each QEMU process is also created to service
a specfic guest domain, it is unnecessary and inefficient to notify all QEMU
processes.
Only the QEMU process associated with the same guest domain need
receive the notification. This patch re-factors the watch registration code
such that notifications are targetted appropriately.

Reported-by: Jerome Leseinne <jerome.leseinne@gmail.com>
Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20201001081500.1026-1-paul@xen.org>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>


  Commit: 8959e0a63a3a681a31ff8397d9345a88e6d905bf
      
https://github.com/qemu/qemu/commit/8959e0a63a3a681a31ff8397d9345a88e6d905bf
  Author: Jason Andryuk <jandryuk@gmail.com>
  Date:   2020-10-19 (Mon, 19 Oct 2020)

  Changed paths:
    M hw/i386/pc_piix.c

  Log Message:
  -----------
  hw/xen: Set suppress-vmdesc for Xen machines

xen-save-devices-state doesn't currently generate a vmdesc, so restore
always triggers "Expected vmdescription section, but got 0".  This is
not a problem when restore comes from a file.  However, when QEMU runs
in a linux stubdom and comes over a console, EOF is not received.  This
causes a delay restoring - though it does restore.

Setting suppress-vmdesc skips looking for the vmdesc during restore and
avoids the wait.

The other approach would be generate a vmdesc in qemu_save_device_state.
Since COLO shared that function, and the vmdesc is just discarded on
restore, we choose to skip it.

Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20201013190506.3325-1-jandryuk@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>


  Commit: 4c41341af76cfc85b5a6c0f87de4838672ab9f89
      
https://github.com/qemu/qemu/commit/4c41341af76cfc85b5a6c0f87de4838672ab9f89
  Author: Peter Maydell <peter.maydell@linaro.org>
  Date:   2020-10-20 (Tue, 20 Oct 2020)

  Changed paths:
    M configure
    M hw/i386/pc_piix.c
    M hw/i386/xen/xen_platform.c
    M hw/xen/xen-backend.c
    M hw/xen/xen-bus.c
    M include/hw/xen/xen-backend.h
    M include/hw/xen/xen-bus.h
    M include/hw/xen/xen-legacy-backend.h

  Log Message:
  -----------
  Merge remote-tracking branch 'remotes/aperard/tags/pull-xen-20201020' into 
staging

Xen queue

* cleanup patches.
* improve xen backend setup performance when other xen guests are
  running/booting.
* improve xen guest migration when running in a stubdomain.

# gpg: Signature made Tue 20 Oct 2020 10:55:11 BST
# gpg:                using RSA key F80C006308E22CFD8A92E7980CF5572FD7FB55AF
# gpg:                issuer "anthony.perard@citrix.com"
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>" 
[marginal]
# gpg:                 aka "Anthony PERARD <anthony.perard@citrix.com>" 
[marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 5379 2F71 024C 600F 778A  7161 D8D5 7199 DF83 42C8
#      Subkey fingerprint: F80C 0063 08E2 2CFD 8A92  E798 0CF5 572F D7FB 55AF

* remotes/aperard/tags/pull-xen-20201020:
  hw/xen: Set suppress-vmdesc for Xen machines
  xen-bus: reduce scope of backend watch
  xen: Rename XENBACKEND_DEVICE to XENBACKEND
  xen: xenguest is not used so is not needed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>


Compare: https://github.com/qemu/qemu/compare/d76f4f97eb27...4c41341af76c