[v6,0/3] x86: QEMU side support on MSR based features

Message

Robert Hoo Oct. 26, 2018, 12:55 p.m. UTC

KVM side has added the framework (kvm.git:d1d93fa90) to support MSR based features.
Here is the QEMU part, including data structure changes/expanding, referring
functions changes, and the implementations on 
KVM_GET_MSR_FEATURE_INDEX_LIST and KVM_GET_MSRS system ioctl.

Changelog:
v6: In cpu feature filtering, filter out MSR features whose CPUID feature
dependency is not there.
	Check feature word type for other accelerator, like hvf, for otherwise it
would return bogus EAX/ECX values in x86_cpu_get_supported_feature_word().
v5: Re-order patches. Complement feature MSR set routines.
v4:
	Re-organize patch set to conform to request of individually build pass.
	Add KVM capability check for KVM_GET_MSR_INDEX_LIST before fetch.
	Special treatment for MSR_IA32_ARCH_CAPABILITIES.RSBA.
	Use more convenient glib wrapper (g_strdup_printf) instead of native
(sprintf).
	
v3: patch 2&3 in v2 are corrupted. Re-format patches.
v2: coding style changes to pass ./scripts/checkpatch.pl.

Robert Hoo (3):
  kvm: Add support to KVM_GET_MSR_FEATURE_INDEX_LIST and KVM_GET_MSRS
    system ioctl
  x86: Data structure changes to support MSR based features
  x86: define a new MSR based feature word --
    FEATURE_WORDS_ARCH_CAPABILITIES

 include/sysemu/kvm.h |   2 +
 target/i386/cpu.c    | 234 +++++++++++++++++++++++++++++++++++++++------------
 target/i386/cpu.h    |  15 +++-
 target/i386/kvm.c    |  91 ++++++++++++++++++++
 4 files changed, 289 insertions(+), 53 deletions(-)