[Qemu-devel] [PATCH v2 0/5] Enable TOPOEXT to support hyperthreading on AMD CPU

[Babu Moger]

These series enable TOPOEXT feature on AMD CPU. These are required to support
hyperthreading on kvm guests. Addresses the issues reported by these bugs
https://bugzilla.redhat.com/show_bug.cgi?id=1481253
https://bugs.launchpad.net/qemu/+bug/1703506 

v2:
Fixed few more minor issues per Gary Hooks comments. Thank you Gary.
Removed the patch#1. We need to handle the instruction cache associativity 
seperately. It varies based on the cpu family. I will comeback to that later.
Added two more typo corrections in patch#1 and patch#5.

v1:
Stanislav Lanci posted few patches earlier. 
https://patchwork.kernel.org/patch/10040903/

Rebased his patches with few changes.
1. Spit the patches into two, separating cpuid functions 
   0x8000001D and 0x8000001E (Patch 2 and 3).
2. Removed the generic non-intel check and made a separate patch
   with some changes(Patch 5).
3. Fixed L3_N_SETS_AMD(from 4096 to 8192) based on CPUID_Fn8000001D_ECX_x03.

Added 2 more patches.
Patch 1. Fixes cache associativity.
Patch 4. Adds TOPOEXT feature on AMD EPYC CPU.


Babu Moger (3):
  target/i386: Fix a minor typo found while reviwing
  target/i386: Enable TOPOEXT feature on AMD EPYC CPU
  target/i386: Remove generic SMT thread check

Stanislav Lanci (2):
  target/i386: Populate AMD Processor Cache Information
  target/i386: Add support for CPUID_8000_001E for AMD

 linux-headers/asm-x86/kvm.h |   2 +-
 target/i386/cpu.c           | 104 ++++++++++++++++++++++++++++++++++++++++----
 target/i386/kvm.c           |  31 +++++++++++--
 3 files changed, 124 insertions(+), 13 deletions(-)

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1.8.3.1