KVM: MTRR: do not map huge page for non-consistent range

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Based on Intel's SDM, mapping huge page which do not have consistent
memory cache for each 4k page will cause undefined behavior

In order to avoiding this kind of undefined behavior, we force to use
4k pages under this case

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Xiao Guangrong 2015-06-15 16:55:35 +08:00 • committed by Paolo Bonzini

parent fa61213746

commit 6a39bbc5da

3 changed files with 50 additions and 1 deletions

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20

arch/x86/kvm/mmu.c

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29

arch/x86/kvm/mtrr.c

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2

arch/x86/kvm/x86.h

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