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authorNadav Amit <namit@cs.technion.ac.il>2014-06-18 17:21:19 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-09 10:51:20 -0700
commit80bbfbaa050a92ce9937904f5d937e7a9ca2b584 (patch)
treeb9af32b4580e8faa97a8660f18af72ae008dbb17
parent6e44d311e993f364bbf4d99e2b6beac25f03bdbe (diff)
KVM: x86: Increase the number of fixed MTRR regs to 10
commit 682367c494869008eb89ef733f196e99415ae862 upstream. 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> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/x86/include/asm/kvm_host.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index d57eacb9fcf6..27c42a87f200 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -102,7 +102,7 @@
#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