[Devel,13/16] KVM: VMX: Dump TSC multiplier in dump_vmcs()

Submitted by Roman Kagan on Nov. 11, 2016, 8:47 a.m.

Details

Message ID 1478854071-19937-14-git-send-email-rkagan@virtuozzo.com
State New
Series "add tsc_scale and fix VM pause/resume"
Headers show

Commit Message

Roman Kagan Nov. 11, 2016, 8:47 a.m.
From: Haozhong Zhang <haozhong.zhang@intel.com>

This patch enhances dump_vmcs() to dump the value of TSC multiplier
field in VMCS.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry-picked from commit 8cfe9866960581303f244780945c5d12ecc4e5bc)
Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com>
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
---
 arch/x86/kvm/vmx.c | 3 +++
 1 file changed, 3 insertions(+)

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diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9f3c26a..a03e7d9 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7521,6 +7521,9 @@  static void dump_vmcs(void)
 	       vmcs_read32(IDT_VECTORING_INFO_FIELD),
 	       vmcs_read32(IDT_VECTORING_ERROR_CODE));
 	pr_err("TSC Offset = 0x%016lx\n", vmcs_readl(TSC_OFFSET));
+	if (secondary_exec_control & SECONDARY_EXEC_TSC_SCALING)
+		pr_err("TSC Multiplier = 0x%016lx\n",
+		       vmcs_readl(TSC_MULTIPLIER));
 	if (cpu_based_exec_ctrl & CPU_BASED_TPR_SHADOW)
 		pr_err("TPR Threshold = 0x%02x\n", vmcs_read32(TPR_THRESHOLD));
 	if (pin_based_exec_ctrl & PIN_BASED_POSTED_INTR)