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authorMarcelo Tosatti <mtosatti@redhat.com>2008-02-22 12:21:37 -0500
committerAvi Kivity <avi@qumranet.com>2008-04-27 05:00:27 -0400
commit2f333bcb4edd8daef99dabe4e7df8277af73cff1 (patch)
treec984466e7756e0910bf470a094558b52bd10df33 /include/linux/kvm_para.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/linux/kvm_para.h')
-rw-r--r--include/linux/kvm_para.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/kvm_para.h b/include/linux/kvm_para.h
index 9c462c91a6b1..3ddce03766ca 100644
--- a/include/linux/kvm_para.h
+++ b/include/linux/kvm_para.h
@@ -11,8 +11,11 @@
11 11
12/* Return values for hypercalls */ 12/* Return values for hypercalls */
13#define KVM_ENOSYS 1000 13#define KVM_ENOSYS 1000
14#define KVM_EFAULT EFAULT
15#define KVM_E2BIG E2BIG
14 16
15#define KVM_HC_VAPIC_POLL_IRQ 1 17#define KVM_HC_VAPIC_POLL_IRQ 1
18#define KVM_HC_MMU_OP 2
16 19
17/* 20/*
18 * hypercalls use architecture specific 21 * hypercalls use architecture specific