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authorAvi Kivity <avi@qumranet.com>2007-11-21 01:57:59 +0100
committerAvi Kivity <avi@qumranet.com>2008-01-30 16:53:10 +0100
commitd835dfecd00fd770288dcd9a46c0e0966d526fdf (patch)
tree9e80c69f9024e45b39cf0d1eeda56ba4a57567a6 /drivers/kvm/x86.h
parentKVM: MMU: Avoid unnecessary remote tlb flushes when guest updates a pte (diff)
downloadlinux-d835dfecd00fd770288dcd9a46c0e0966d526fdf.tar.xz
linux-d835dfecd00fd770288dcd9a46c0e0966d526fdf.zip
KVM: Don't bother the mmu if cr3 load doesn't change cr3
If the guest requests just a tlb flush, don't take the vm lock and drop the mmu context pointlessly. Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to '')
-rw-r--r--drivers/kvm/x86.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/kvm/x86.h b/drivers/kvm/x86.h
index 71f2477d03fd..b1528c9f566f 100644
--- a/drivers/kvm/x86.h
+++ b/drivers/kvm/x86.h
@@ -299,6 +299,7 @@ int emulator_write_emulated(unsigned long addr,
unsigned long segment_base(u16 selector);
+void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
const u8 *new, int bytes);
int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);