[PATCH v8 4/9] KVM: VMX: Report tertiary_exec_control field in dump_vmcs()

From: Zeng Guang
Date: Mon Apr 11 2022 - 05:37:18 EST


From: Robert Hoo <robert.hu@xxxxxxxxxxxxxxx>

Add tertiary_exec_control field report in dump_vmcs(). Meanwhile,
reorganize the dump output of VMCS category as follows.

Before change:
*** Control State ***
PinBased=0x000000ff CPUBased=0xb5a26dfa SecondaryExec=0x061037eb
EntryControls=0000d1ff ExitControls=002befff

After change:
*** Control State ***
CPUBased=0xb5a26dfa SecondaryExec=0x061037eb TertiaryExec=0x0000000000000010
PinBased=0x000000ff EntryControls=0000d1ff ExitControls=002befff

Reviewed-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
Signed-off-by: Robert Hoo <robert.hu@xxxxxxxxxxxxxxx>
Signed-off-by: Zeng Guang <guang.zeng@xxxxxxxxx>
---
arch/x86/kvm/vmx/vmx.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 961e61044341..f439abd52bad 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -5867,6 +5867,7 @@ void dump_vmcs(struct kvm_vcpu *vcpu)
struct vcpu_vmx *vmx = to_vmx(vcpu);
u32 vmentry_ctl, vmexit_ctl;
u32 cpu_based_exec_ctrl, pin_based_exec_ctrl, secondary_exec_control;
+ u64 tertiary_exec_control;
unsigned long cr4;
int efer_slot;

@@ -5880,9 +5881,16 @@ void dump_vmcs(struct kvm_vcpu *vcpu)
cpu_based_exec_ctrl = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
pin_based_exec_ctrl = vmcs_read32(PIN_BASED_VM_EXEC_CONTROL);
cr4 = vmcs_readl(GUEST_CR4);
- secondary_exec_control = 0;
+
if (cpu_has_secondary_exec_ctrls())
secondary_exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
+ else
+ secondary_exec_control = 0;
+
+ if (cpu_has_tertiary_exec_ctrls())
+ tertiary_exec_control = vmcs_read64(TERTIARY_VM_EXEC_CONTROL);
+ else
+ tertiary_exec_control = 0;

pr_err("VMCS %p, last attempted VM-entry on CPU %d\n",
vmx->loaded_vmcs->vmcs, vcpu->arch.last_vmentry_cpu);
@@ -5982,9 +5990,10 @@ void dump_vmcs(struct kvm_vcpu *vcpu)
vmx_dump_msrs("host autoload", &vmx->msr_autoload.host);

pr_err("*** Control State ***\n");
- pr_err("PinBased=%08x CPUBased=%08x SecondaryExec=%08x\n",
- pin_based_exec_ctrl, cpu_based_exec_ctrl, secondary_exec_control);
- pr_err("EntryControls=%08x ExitControls=%08x\n", vmentry_ctl, vmexit_ctl);
+ pr_err("CPUBased=0x%08x SecondaryExec=0x%08x TertiaryExec=0x%016llx\n",
+ cpu_based_exec_ctrl, secondary_exec_control, tertiary_exec_control);
+ pr_err("PinBased=0x%08x EntryControls=%08x ExitControls=%08x\n",
+ pin_based_exec_ctrl, vmentry_ctl, vmexit_ctl);
pr_err("ExceptionBitmap=%08x PFECmask=%08x PFECmatch=%08x\n",
vmcs_read32(EXCEPTION_BITMAP),
vmcs_read32(PAGE_FAULT_ERROR_CODE_MASK),
--
2.27.0