From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
Anirudh Rayabharam <anrayabh@linux.microsoft.com>,
Sean Christopherson <seanjc@google.com>
Cc: Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>,
Maxim Levitsky <mlevitsk@redhat.com>,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH RFC v1 03/10] KVM: VMX: Move CPU_BASED_{CR3_LOAD,CR3_STORE,INVLPG}_EXITING filtering out of setup_vmcs_config()
Date: Wed, 22 Jun 2022 18:44:25 +0200 [thread overview]
Message-ID: <20220622164432.194640-4-vkuznets@redhat.com> (raw)
In-Reply-To: <20220622164432.194640-1-vkuznets@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
arch/x86/kvm/vmx/vmx.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 01294a2fc1c1..4583de7f0324 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4293,6 +4293,16 @@ static u32 vmx_exec_control(struct vcpu_vmx *vmx)
CPU_BASED_MONITOR_TRAP_FLAG |
CPU_BASED_PAUSE_EXITING);
+ if (vmcs_config.cpu_based_2nd_exec_ctrl & SECONDARY_EXEC_ENABLE_EPT) {
+ /*
+ * CR3 accesses and invlpg don't need to cause VM Exits when EPT
+ * enabled.
+ */
+ exec_control &= ~(CPU_BASED_CR3_LOAD_EXITING |
+ CPU_BASED_CR3_STORE_EXITING |
+ CPU_BASED_INVLPG_EXITING);
+ }
+
#ifdef CONFIG_X86_64
if (exec_control & CPU_BASED_TPR_SHADOW)
exec_control &= ~CPU_BASED_CR8_LOAD_EXITING &
--
2.35.3
next prev parent reply other threads:[~2022-06-22 16:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-22 16:44 [PATCH RFC v1 00/10] KVM: nVMX: Use vmcs_config for setting up nested VMX MSRs Vitaly Kuznetsov
2022-06-22 16:44 ` [PATCH RFC v1 01/10] KVM: VMX: Move CPU_BASED_CR8_{LOAD,STORE}_EXITING filtering out of setup_vmcs_config() Vitaly Kuznetsov
2022-06-24 0:09 ` Sean Christopherson
2022-06-22 16:44 ` [PATCH RFC v1 02/10] KVM: VMX: Add missing CPU based VM execution controls to vmcs_config Vitaly Kuznetsov
2022-06-24 0:12 ` Sean Christopherson
2022-06-27 15:12 ` Vitaly Kuznetsov
2022-06-22 16:44 ` Vitaly Kuznetsov [this message]
2022-06-24 0:04 ` [PATCH RFC v1 03/10] KVM: VMX: Move CPU_BASED_{CR3_LOAD,CR3_STORE,INVLPG}_EXITING filtering out of setup_vmcs_config() Sean Christopherson
2022-06-22 16:44 ` [PATCH RFC v1 04/10] KVM: VMX: Add missing VMEXIT controls to vmcs_config Vitaly Kuznetsov
2022-06-22 16:44 ` [PATCH RFC v1 05/10] KVM: VMX: Add missing VMENTRY " Vitaly Kuznetsov
2022-06-22 16:44 ` [PATCH RFC v1 06/10] KVM: nVMX: Use sanitized allowed-1 bits for VMX control MSRs Vitaly Kuznetsov
2022-07-03 9:01 ` [KVM] 4ce471284f: kvm-unit-tests.vmx_pf_vpid_test.fail kernel test robot
2022-06-22 16:44 ` [PATCH RFC v1 07/10] KVM: VMX: Store required-1 VMX controls in vmcs_config Vitaly Kuznetsov
2022-06-22 16:44 ` [PATCH RFC v1 08/10] KVM: nVMX: Use sanitized required-1 bits for VMX control MSRs Vitaly Kuznetsov
2022-06-22 16:44 ` [PATCH RFC v1 09/10] KVM: VMX: Cache MSR_IA32_VMX_MISC in vmcs_config Vitaly Kuznetsov
2022-06-22 16:44 ` [PATCH RFC v1 10/10] KVM: nVMX: Use cached host MSR_IA32_VMX_MISC value for setting up nested MSR Vitaly Kuznetsov
2022-06-24 0:31 ` [PATCH RFC v1 00/10] KVM: nVMX: Use vmcs_config for setting up nested VMX MSRs Sean Christopherson
2022-06-27 16:06 ` Vitaly Kuznetsov
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