KVM: VMX: Cache vmcs segment fields

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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>

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Avi Kivity 2011-04-27 19:42:18 +03:00

parent 1aa366163b

commit 2fb92db1ec

2 changed files with 93 additions and 10 deletions

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1

arch/x86/include/asm/kvm_host.h

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102

arch/x86/kvm/vmx.c

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