From: Avi Kivity <avi@redhat.com>
To: kvm@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
Joerg Roedel <joerg.roedel@amd.com>,
Sheng Yang <sheng@linux.intel.com>
Subject: [PATCH 1/3] KVM: VMX: Avoid duplicate ept tlb flush when setting cr3
Date: Mon, 1 Jun 2009 16:22:01 +0300 [thread overview]
Message-ID: <1243862524-22120-2-git-send-email-avi@redhat.com> (raw)
In-Reply-To: <1243862524-22120-1-git-send-email-avi@redhat.com>
vmx_set_cr3() will call vmx_tlb_flush(), which will flush the ept context.
So there is no need to call ept_sync_context() explicitly.
Signed-off-by: Avi Kivity <avi@redhat.com>
---
arch/x86/kvm/vmx.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 25f1239..5607de8 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1642,7 +1642,6 @@ static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
if (enable_ept) {
eptp = construct_eptp(cr3);
vmcs_write64(EPT_POINTER, eptp);
- ept_sync_context(eptp);
ept_load_pdptrs(vcpu);
guest_cr3 = is_paging(vcpu) ? vcpu->arch.cr3 :
VMX_EPT_IDENTITY_PAGETABLE_ADDR;
--
1.6.0.6
next prev parent reply other threads:[~2009-06-01 13:22 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-01 13:22 [PATCH 0/3] Cache PDPTRs under ept/npt Avi Kivity
2009-06-01 13:22 ` Avi Kivity [this message]
2009-06-01 13:22 ` [PATCH 2/3] KVM: VMX: Simplify pdptr and cr3 management Avi Kivity
2009-06-02 9:22 ` Sheng Yang
2009-06-02 9:26 ` Avi Kivity
2009-06-02 9:30 ` Sheng Yang
2009-06-02 9:46 ` Avi Kivity
2009-06-02 9:56 ` Sheng Yang
2009-06-02 10:16 ` Avi Kivity
2009-06-02 11:31 ` Sheng Yang
2009-06-02 11:44 ` Avi Kivity
2009-06-01 13:22 ` [PATCH 3/3] KVM: Cache pdptrs Avi Kivity
2009-06-02 9:04 ` Joerg Roedel
2009-06-02 9:09 ` Avi Kivity
2009-06-02 9:30 ` Joerg Roedel
2009-06-02 9:44 ` Avi Kivity
2009-06-02 11:50 ` Avi Kivity
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