linux-kernel - [PATCH 20/32] KVM: VMX: dump_vmcs() support the guest virt timer

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Message-ID: <2ae528c16a244e8c138835217c2a190e350dcde8.1770116051.git.isaku.yamahata@intel.com>
Date: Tue,  3 Feb 2026 10:17:03 -0800
From: isaku.yamahata@...el.com
To: kvm@...r.kernel.org
Cc: isaku.yamahata@...el.com,
	isaku.yamahata@...il.com,
	Paolo Bonzini <pbonzini@...hat.com>,
	Sean Christopherson <seanjc@...gle.com>,
	linux-kernel@...r.kernel.org,
	Yang Zhong <yang.zhong@...ux.intel.com>
Subject: [PATCH 20/32] KVM: VMX: dump_vmcs() support the guest virt timer

From: Yang Zhong <yang.zhong@...ux.intel.com>

Add three VMCS fields from the guest virt timer into dump_vmcs().

Signed-off-by: Yang Zhong <yang.zhong@...ux.intel.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@...el.com>
---
 arch/x86/kvm/vmx/vmx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 50d4390d41f0..5496f4230424 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -6522,6 +6522,12 @@ void dump_vmcs(struct kvm_vcpu *vcpu)
 		vmx_dump_msrs("guest autoload", &vmx->msr_autoload.guest);
 	if (vmcs_read32(VM_EXIT_MSR_STORE_COUNT) > 0)
 		vmx_dump_msrs("guest autostore", &vmx->msr_autostore.guest);
+	if (tertiary_exec_control & TERTIARY_EXEC_GUEST_APIC_TIMER) {
+		pr_err("DeadlinePhy = 0x%016llx\n", vmcs_read64(GUEST_DEADLINE_PHY));
+		pr_err("DeadlineVir = 0x%016llx\n", vmcs_read64(GUEST_DEADLINE_VIR));
+		pr_err("GuestApicTimerVector = 0x%04x\n",
+		       vmcs_read16(GUEST_APIC_TIMER_VECTOR));
+	}
 
 	if (vmentry_ctl & VM_ENTRY_LOAD_CET_STATE)
 		pr_err("S_CET = 0x%016lx, SSP = 0x%016lx, SSP TABLE = 0x%016lx\n",
-- 
2.45.2