[PATCH v5 1/8] KVM: MMU: drop unnecessary kvm_reload_remote_mmus

From: Xiao Guangrong
Date: Thu May 16 2013 - 08:19:47 EST


It is the responsibility of kvm_mmu_zap_all that keeps the
consistent of mmu and tlbs. And it is also unnecessary after
zap all mmio sptes since no mmio spte exists on root shadow
page and it can not be cached into tlb

Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
---
arch/x86/kvm/x86.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8d28810..d885418 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7067,16 +7067,13 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
* If memory slot is created, or moved, we need to clear all
* mmio sptes.
*/
- if ((change == KVM_MR_CREATE) || (change == KVM_MR_MOVE)) {
+ if ((change == KVM_MR_CREATE) || (change == KVM_MR_MOVE))
kvm_mmu_zap_mmio_sptes(kvm);
- kvm_reload_remote_mmus(kvm);
- }
}

void kvm_arch_flush_shadow_all(struct kvm *kvm)
{
kvm_mmu_zap_all(kvm);
- kvm_reload_remote_mmus(kvm);
}

void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
--
1.7.7.6

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/