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hv: add a cache register for VMX_PROC_VM_EXEC_CONTROLS

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This patch adds a cache register for VMX_PROC_VM_EXEC_CONTROLS
to avoid the frequent VMCS access.

Tracked-On: #5605
Signed-off-by: Jie Deng <jie.deng@intel.com>
This commit is contained in:
Jie Deng
2020-12-28 14:17:21 +08:00
committed by acrnsi-robot
parent f291997811
commit 27d5711b62
4 changed files with 15 additions and 29 deletions
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9
hypervisor/arch/x86/guest/vmcs.c
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@@ -288,7 +288,7 @@ static void init_exec_ctrl(struct acrn_vcpu *vcpu)
* Enable VM_EXIT for rdpmc execution.
*/
value32 |= VMX_PROCBASED_CTLS_RDPMC;
vcpu->arch.proc_vm_exec_ctrls = value32;
exec_vmwrite32(VMX_PROC_VM_EXEC_CONTROLS, value32);
pr_dbg("VMX_PROC_VM_EXEC_CONTROLS: 0x%x ", value32);
@@ -595,10 +595,9 @@ void switch_apicv_mode_x2apic(struct acrn_vcpu *vcpu)
value32 &= ~VMX_EXIT_CTLS_ACK_IRQ;
exec_vmwrite32(VMX_EXIT_CONTROLS, value32);
value32 = exec_vmread32(VMX_PROC_VM_EXEC_CONTROLS);
value32 &= ~VMX_PROCBASED_CTLS_TPR_SHADOW;
value32 &= ~VMX_PROCBASED_CTLS_HLT;
exec_vmwrite32(VMX_PROC_VM_EXEC_CONTROLS, value32);
vcpu->arch.proc_vm_exec_ctrls &= ~VMX_PROCBASED_CTLS_TPR_SHADOW;
vcpu->arch.proc_vm_exec_ctrls &= ~VMX_PROCBASED_CTLS_HLT;
exec_vmwrite32(VMX_PROC_VM_EXEC_CONTROLS, vcpu->arch.proc_vm_exec_ctrls);
exec_vmwrite32(VMX_TPR_THRESHOLD, 0U);