[libvirt] [PATCH 0/9] qemu: More CPU enhancements and fixes

Jiri Denemark posted 9 patches 6 years, 11 months ago
Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/libvirt tags/patchew/cover.1492090347.git.jdenemar@redhat.com
src/cpu/cpu.c                |  20 +++
src/cpu/cpu.h                |   3 +
src/cpu/cpu_x86.c            |   9 +-
src/libvirt_private.syms     |   1 +
src/qemu/qemu_capabilities.c | 288 +++++++++++++++++++++++++++++--------------
src/qemu/qemu_capabilities.h |  16 ++-
src/qemu/qemu_command.c      |   3 +-
src/qemu/qemu_process.c      |   6 +-
tests/cputest.c              |   7 +-
9 files changed, 247 insertions(+), 106 deletions(-)
[libvirt] [PATCH 0/9] qemu: More CPU enhancements and fixes
Posted by Jiri Denemark 6 years, 11 months ago
This is technically a v2 of the not yet pushed part of "qemu: Use
migratable host CPU model from QEMU" series, but the patches were
significantly rewritten based on the review comments and on the need for
additional regression fix.

Current libvirt makes a migratable host CPU model by removing features
marked in cpu_map.xml with migratable='no'. This is not ideal because
cpu_map.xml is a static database while feature migratability may differ
depending on a hypervisor or its version. Thus we should preferably use
the data we got from QEMU.

And to make things even more complicated, we need to use both CPUID data
we probed and data from QEMU when checking whether a guest CPU can run
on the host to maintain backward compatibility with older libvirt.

Thus we need to store three different views of the host CPU model with
each QEMU binary.

Jiri Denemark (9):
  qemu: Introduce virQEMUCapsSetHostModel
  qemu: Move qemuCaps CPU data copying into a separate function
  qemu: Introduce virQEMUCapsHostCPUDataClear
  qemu: Move qemuCaps host CPU data in a struct
  qemu: Prepare qemuCaps for multiple host CPU defs
  qemu: Pass migratable host CPU model to virCPUUpdate
  cpu: Drop feature filtering from virCPUUpdate
  cpu: Introduce virCPUGetHostIsSupported
  qemu: Use more data for comparing CPUs

 src/cpu/cpu.c                |  20 +++
 src/cpu/cpu.h                |   3 +
 src/cpu/cpu_x86.c            |   9 +-
 src/libvirt_private.syms     |   1 +
 src/qemu/qemu_capabilities.c | 288 +++++++++++++++++++++++++++++--------------
 src/qemu/qemu_capabilities.h |  16 ++-
 src/qemu/qemu_command.c      |   3 +-
 src/qemu/qemu_process.c      |   6 +-
 tests/cputest.c              |   7 +-
 9 files changed, 247 insertions(+), 106 deletions(-)

-- 
2.12.2

--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list