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| author | Avi Kivity <avi@redhat.com> | 2011-04-27 19:42:18 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-05-22 08:47:45 -0400 |
| commit | 2fb92db1ec08f3235c500e7f460eeb78092d844e (patch) | |
| tree | 9cc23153b938a29969baa86e8075c507a7a05570 /arch/x86/include/asm/kvm_host.h | |
| parent | 1aa366163b8b69f660cf94fd5062fa44859e4318 (diff) | |
| download | op-kernel-dev-2fb92db1ec08f3235c500e7f460eeb78092d844e.zip op-kernel-dev-2fb92db1ec08f3235c500e7f460eeb78092d844e.tar.gz | |
KVM: VMX: Cache vmcs segment fields
Since the emulator now checks segment limits and access rights, it
generates a lot more accesses to the vmcs segment fields. Undo some
of the performance hit by cacheing those fields in a read-only cache
(the entire cache is invalidated on any write, or on guest exit).
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index afb0e69..d2ac8e2 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -136,6 +136,7 @@ enum kvm_reg_ex { VCPU_EXREG_CR3, VCPU_EXREG_RFLAGS, VCPU_EXREG_CPL, + VCPU_EXREG_SEGMENTS, }; enum { |
