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KVM: x86: Increase the number of fixed MTRR regs to 10

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Recent Intel CPUs have 10 variable range MTRRs. Since operating systems
sometime make assumptions on CPUs while they ignore capability MSRs, it is
better for KVM to be consistent with recent CPUs. Reporting more MTRRs than
actually supported has no functional implications.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Nadav Amit 2014-06-18 17:21:19 +03:00 committed by Paolo Bonzini
parent 7171511eae
commit 682367c494
1 changed files with 1 additions and 1 deletions
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arch/x86/include/asm/kvm_host.h
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@ -95,7 +95,7 @@ static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level)
#define KVM_REFILL_PAGES 25
#define KVM_MAX_CPUID_ENTRIES 80
#define KVM_NR_FIXED_MTRR_REGION 88
#define KVM_NR_VAR_MTRR 8
#define KVM_NR_VAR_MTRR 10
#define ASYNC_PF_PER_VCPU 64