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  1. 15 11月, 2016 3 次提交
  3. 22 9月, 2016 17 次提交
  5. 13 8月, 2016 1 次提交
    • J
      cpu_x86: fix libvirtd crash when host cpu vendor is not available · 541e9ae6
      由 Jim Fehlig 提交于 
      When starting a guest and copying host vendor cpuid to the guest
cpu, libvirtd would crash if the host cpu contained a NULL vendor
field. Avoid the crash by checking for a valid vendor in the host
cpu before copying the cpuid to the guest cpu.

For completeness, here is a backtrace from the crash

(gdb) bt
f0  0x00007ffff739bf33 in x86DataCpuid (cpuid=0x8, cpuid=0x8,
    data=data@entry=0x7fffb800ee78) at cpu/cpu_x86.c:287
f1  virCPUx86DataAddCPUID (data=data@entry=0x7fffb800ee78, cpuid=0x8)
    at cpu/cpu_x86.c:355
f2  0x00007ffff739ef47 in x86Compute (host=<optimized out>, cpu=0x7fffb8000cc0,
    guest=0x7fffecca7348, message=<optimized out>) at cpu/cpu_x86.c:1580
f3  0x00007fffd2b38e53 in qemuBuildCpuModelArgStr (migrating=false,
    hasHwVirt=<synthetic pointer>, qemuCaps=0x7fffb8001040, buf=0x7fffecca7360,
    def=0x7fffc400ce20, driver=0x1c) at qemu/qemu_command.c:6283
f4  qemuBuildCpuCommandLine (cmd=cmd@entry=0x7fffb8002f60,
    driver=driver@entry=0x7fffc80882c0, def=def@entry=0x7fffc400ce20,
    qemuCaps=qemuCaps@entry=0x7fffb8001040, migrating=<optimized out>)
    at qemu/qemu_command.c:6445
(gdb) f2
(gdb) p *host_model
$23 = {name = 0x7fffb800ec50 "qemu64", vendor = 0x0, signature = 0, data = {
    len = 2, data = 0x7fffb800e720}}
      541e9ae6
  7. 10 8月, 2016 3 次提交
  9. 01 7月, 2016 2 次提交
  11. 25 6月, 2016 2 次提交
    • Q
      cpu_map.xml: add cmt/mbm feature to x86 · f294b83e
      由 Qiaowei Ren 提交于 
      Some Intel processor families (e.g. the Intel Xeon processor E5 v3
family) introduced some PQos (Platform Qos) features, including CMT
(Cache Monitoring technology) and MBM (Memory Bandwidth Monitoring),
to monitor or control shared resource. This patch add them into x86
part of cpu_map.xml to be used for applications based on libvirt to
get cpu capabilities. For example, Nova in OpenStack schedules guests
based on the CPU features that the host has.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>
      f294b83e
    • J
      cpu: Consolidate ARM drivers · e2ddc811
      由 Jiri Denemark 提交于 
      Both ARM and AArch64 drivers are exactly the same (modulo function
names). Let's use just one driver for all ARM architectures.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
      e2ddc811
  13. 17 6月, 2016 2 次提交
    • J
      cpu_x86: Use signature in CPU detection code · 5a9221b9
      由 Jiri Denemark 提交于 
      Our current detection code uses just the number of CPU features which
need to be added/removed from the CPU model to fully describe the CPUID
data. The smallest number wins. But this may sometimes generate wrong
results as one can see from the fixed test cases. This patch modifies
the algorithm to prefer the CPU model with matching signature even if
this model results in a longer list of additional features.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
      5a9221b9
    • J
      cpu: Add Skylake-Client x86 CPU model · 2f3ccdf0
      由 Jiri Denemark 提交于 
      The CPU model was implemented in QEMU by commit f6f949e929.

The change to i7-5600U is wrong since it's a 5th generation CPU, i.e.,
Broadwell rather than Skylake, but that's just the result of our CPU
detection code (which is fixed by the following commit).
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
      2f3ccdf0
  15. 09 6月, 2016 10 次提交