On Thu, Oct 01, 2015 at 07:23:44PM +0200, marcandre.lur...@redhat.com wrote: > From: Marc-André Lureau <marcandre.lur...@redhat.com> > > 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.
OK, it was a quiet week otherwise, so I decided to pick this patchset up and fix up the trivial issues myself. I probably won't be able to do this in the future though. > 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" > > Marc-André Lureau (21): > configure: probe for memfd > linux-headers: add unistd.h > 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 > > 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 ++- > hw/net/vhost_net.c | 35 +- > hw/scsi/vhost-scsi.c | 7 +- > hw/virtio/vhost-backend.c | 121 +++- > hw/virtio/vhost-user.c | 572 ++++++++++++------- > 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 + > 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 +- > scripts/update-linux-headers.sh | 7 +- > tests/vhost-user-test.c | 372 +++++++++++-- > trace-events | 3 + > util/Makefile.objs | 9 +- > util/memfd.c | 165 ++++++ > 27 files changed, 4713 insertions(+), 335 deletions(-) > create mode 100644 include/qemu/memfd.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 > > -- > 2.4.3
