linux-kernel - [PATCH RFC v1 02/10] KVM: VMX: Add missing CPU based VM execution controls to vmcs

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Date:   Wed, 22 Jun 2022 18:44:24 +0200
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Anirudh Rayabharam <anrayabh@...ux.microsoft.com>,
        Sean Christopherson <seanjc@...gle.com>
Cc:     Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Maxim Levitsky <mlevitsk@...hat.com>,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH RFC v1 02/10] KVM: VMX: Add missing CPU based VM execution controls to vmcs_config

Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
---
 arch/x86/kvm/vmx/vmx.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 24da9e93bdab..01294a2fc1c1 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2483,8 +2483,14 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf,
 	      CPU_BASED_INVLPG_EXITING |
 	      CPU_BASED_RDPMC_EXITING;
 
-	opt = CPU_BASED_TPR_SHADOW |
+	opt = CPU_BASED_INTR_WINDOW_EXITING |
+	      CPU_BASED_RDTSC_EXITING |
+	      CPU_BASED_TPR_SHADOW |
+	      CPU_BASED_NMI_WINDOW_EXITING |
+	      CPU_BASED_USE_IO_BITMAPS |
+	      CPU_BASED_MONITOR_TRAP_FLAG |
 	      CPU_BASED_USE_MSR_BITMAPS |
+	      CPU_BASED_PAUSE_EXITING |
 	      CPU_BASED_ACTIVATE_SECONDARY_CONTROLS |
 	      CPU_BASED_ACTIVATE_TERTIARY_CONTROLS;
 	if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_PROCBASED_CTLS,
@@ -4280,6 +4286,13 @@ static u32 vmx_exec_control(struct vcpu_vmx *vmx)
 {
 	u32 exec_control = vmcs_config.cpu_based_exec_ctrl;
 
+	exec_control &= ~(CPU_BASED_INTR_WINDOW_EXITING |
+			  CPU_BASED_RDTSC_EXITING |
+			  CPU_BASED_NMI_WINDOW_EXITING |
+			  CPU_BASED_USE_IO_BITMAPS |
+			  CPU_BASED_MONITOR_TRAP_FLAG |
+			  CPU_BASED_PAUSE_EXITING);
+
 #ifdef CONFIG_X86_64
 	if (exec_control & CPU_BASED_TPR_SHADOW)
 		exec_control &= ~CPU_BASED_CR8_LOAD_EXITING &
-- 
2.35.3