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authorMarcelo Tosatti <mtosatti@redhat.com>2008-02-22 12:21:37 -0500
committerAvi Kivity <avi@qumranet.com>2008-04-27 12:00:27 +0300
commit2f333bcb4edd8daef99dabe4e7df8277af73cff1 (patch)
treec984466e7756e0910bf470a094558b52bd10df33 /include/asm-x86/kvm_host.h
parent9f81128591ca1e9907f2e7a7b195e33232167d60 (diff)
KVM: MMU: hypercall based pte updates and TLB flushes
Hypercall based pte updates are faster than faults, and also allow use of the lazy MMU mode to batch operations. Don't report the feature if two dimensional paging is enabled. [avi: - one mmu_op hypercall instead of one per op - allow 64-bit gpa on hypercall - don't pass host errors (-ENOMEM) to guest] [akpm: warning fix on i386] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/asm-x86/kvm_host.h')
-rw-r--r--include/asm-x86/kvm_host.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 99d31f5ed9f..772ba95f0a0 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -434,6 +434,10 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
int __emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
const void *val, int bytes);
+int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes,
+ gpa_t addr, unsigned long *ret);
+
+extern bool tdp_enabled;
enum emulation_result {
EMULATE_DONE, /* no further processing */