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From: | Thibaut Collet |
Subject: | Re: [Qemu-devel] [PATCH v8 00/27] vhost-user: add migration support |
Date: | Tue, 13 Oct 2015 14:19:41 +0200 |
On Fri, Oct 9, 2015 at 5:17 PM, <address@hidden> wrote:From: Marc-André Lureau <address@hidden>
Hi,
The following series implement shareable log for vhost-user to support
memory tracking during live migration. On qemu-side, the solution is
fairly straightfoward since vhost already supports the dirty log, only
vhost-user couldn't access the log memory until then.
The series includes "vhost user: Add live migration" patches from
Thibaut Collet.
v7->v8:
- rebased
- fix build on osx & aarch64
- add seccomp patch from Eduardo
- fix enum usage and MQ (squashed Thibaut fix)
- fixed vhost_net_notify_migration_done() fallback
- split util-obj- on multi-lines in seperate patch
v6->v7:
- add migration blocker if memfd failed
- add doc about the qemu_memfd_alloc() helper
- (rebase on top of Michael pci branch)
v5->v6:
- rebased
- fix protocol feature mask update
- add a patch from Thibault Collet using enum for features, and
compute mask
- add unistd.h linux headers to help building memfd if missing on
build host. Hopefully will be useful for other syscalls some day
- reorder/merge patches to share-allocate the log only if needed
- split the memfd helper to allow to drop the fallback code
- allow to call qemu_memfd_free() even if alloc failed
- add some missing spaces
v4->v5:
- rebase on top of last Michael S. Tsirkin PULL request
- block live migration if !PROTOCOL_F_LOG_SHMFD
- wait for a reply after SET_LOG_BASE
- split vhost_set_log_base from the rest of vhost_call refactoring
- use a seperate global vhost_log_shm
v3->v4:
- add the proto negotiation & the migration series
- replace the varargs vhost_call() approach for callbacks
- only share-allocate when the backend needs it
v2->v3:
- changed some patch summary
- added migration tests
- added a patch to replace error message with a trace
The development branch I used is:
https://github.com/elmarco/qemu branch "vhost-user"
Eduardo Otubo (1):
seccomp: add memfd_create to whitelist
Marc-André Lureau (22):
configure: probe for memfd
linux-headers: add unistd.h
build-sys: split util-obj- on multi-lines
util: add linux-only memfd fallback
util: add memfd helpers
util: add fallback for qemu_memfd_alloc()
vhost: document log resizing
vhost: add vhost_set_log_base op
vhost-user: add vhost_user_requires_shm_log()
vhost: alloc shareable log
vhost-user: send log shm fd along with log_base
vhost-user: add a migration blocker
vhost: use a function for each call
vhost-user: document migration log
net: add trace_vhost_user_event
vhost: add migration block if memfd failed
vhost-user-test: move wait_for_fds() out
vhost-user-test: remove useless static check
vhost-user-test: wrap server in TestServer struct
vhost-user-test: learn to tweak various qemu arguments
vhost-user-test: add live-migration test
vhost-user-test: check ownership during migration
Michael S. Tsirkin (1):
exec: factor out duplicate mmap code
Thibaut Collet (3):
vhost user: add support of live migration
vhost user: add rarp sending after live migration for legacy guest
vhost-user: use an enum helper for features mask
configure | 19 +
docs/specs/vhost-user.txt | 63 ++-
exec.c | 47 +-
hw/net/vhost_net.c | 35 +-
hw/scsi/vhost-scsi.c | 7 +-
hw/virtio/vhost-backend.c | 121 +++-
hw/virtio/vhost-user.c | 576 ++++++++++++-------
hw/virtio/vhost.c | 121 ++--
include/hw/virtio/vhost-backend.h | 77 ++-
include/hw/virtio/vhost.h | 15 +-
include/net/vhost_net.h | 1 +
include/qemu/memfd.h | 26 +
include/qemu/mmap-alloc.h | 10 +
linux-headers/asm-arm/unistd.h | 448 +++++++++++++++
linux-headers/asm-arm64/kvm.h | 37 +-
linux-headers/asm-arm64/unistd.h | 16 +
linux-headers/asm-mips/unistd.h | 1063 ++++++++++++++++++++++++++++++++++++
linux-headers/asm-powerpc/unistd.h | 392 +++++++++++++
linux-headers/asm-s390/unistd.h | 404 ++++++++++++++
linux-headers/asm-x86/unistd.h | 15 +
linux-headers/asm-x86/unistd_32.h | 377 +++++++++++++
linux-headers/asm-x86/unistd_64.h | 330 +++++++++++
linux-headers/asm-x86/unistd_x32.h | 319 +++++++++++
net/vhost-user.c | 34 +-
qemu-seccomp.c | 3 +-
scripts/update-linux-headers.sh | 7 +-
tests/vhost-user-test.c | 372 +++++++++++--
trace-events | 3 +
util/Makefile.objs | 13 +-
util/memfd.c | 162 ++++++
util/mmap-alloc.c | 71 +++
util/oslib-posix.c | 28 +-
32 files changed, 4814 insertions(+), 398 deletions(-)
create mode 100644 include/qemu/memfd.h
create mode 100644 include/qemu/mmap-alloc.h
create mode 100644 linux-headers/asm-arm/unistd.h
create mode 100644 linux-headers/asm-arm64/unistd.h
create mode 100644 linux-headers/asm-mips/unistd.h
create mode 100644 linux-headers/asm-powerpc/unistd.h
create mode 100644 linux-headers/asm-s390/unistd.h
create mode 100644 linux-headers/asm-x86/unistd.h
create mode 100644 linux-headers/asm-x86/unistd_32.h
create mode 100644 linux-headers/asm-x86/unistd_64.h
create mode 100644 linux-headers/asm-x86/unistd_x32.h
create mode 100644 util/memfd.c
create mode 100644 util/mmap-alloc.c
--
2.4.3
0001-FIXUP-vhost-user-add-support-of-live-migration.patch
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