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| author |  Jim Mattson <jmattson@google.com>
| 2021-06-21 15:16:48 -0700 |
|---|---|---|
| committer |  Paolo Bonzini <pbonzini@redhat.com>
| 2021-06-24 04:31:13 -0400 |
| commit | 18f63b15b0283d6f37be3174e2c7b6f2d6ed91cf (patch) | |
| tree | 2150d97de154af57d2d8a4675c9c6f17acbf275e /arch | |
| parent | Merge branch 'topic/ppc-kvm' of https://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
| download | linux-18f63b15b0283d6f37be3174e2c7b6f2d6ed91cf.tar.gz linux-18f63b15b0283d6f37be3174e2c7b6f2d6ed91cf.tar.bz2 linux-18f63b15b0283d6f37be3174e2c7b6f2d6ed91cf.zip | |
KVM: x86: Print CPU of last attempted VM-entry when dumping VMCS/VMCB
Failed VM-entry is often due to a faulty core. To help identify bad
cores, print the id of the last logical processor that attempted
VM-entry whenever dumping a VMCS or VMCB.
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20210621221648.1833148-1-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 4cee285b0185..8834822c00cd 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3132,6 +3132,8 @@ static void dump_vmcb(struct kvm_vcpu *vcpu) return; } + pr_err("VMCB %p, last attempted VMRUN on CPU %d\n", + svm->current_vmcb->ptr, vcpu->arch.last_vmentry_cpu); pr_err("VMCB Control Area:\n"); pr_err("%-20s%04x\n", "cr_read:", control->intercepts[INTERCEPT_CR] & 0xffff); pr_err("%-20s%04x\n", "cr_write:", control->intercepts[INTERCEPT_CR] >> 16); diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index ab6f682645d7..684daa3eefc2 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -5724,6 +5724,8 @@ void dump_vmcs(struct kvm_vcpu *vcpu) if (cpu_has_secondary_exec_ctrls()) secondary_exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL); + pr_err("VMCS %p, last attempted VM-entry on CPU %d\n", + vmx->loaded_vmcs->vmcs, vcpu->arch.last_vmentry_cpu); pr_err("*** Guest State ***\n"); pr_err("CR0: actual=0x%016lx, shadow=0x%016lx, gh_mask=%016lx\n", vmcs_readl(GUEST_CR0), vmcs_readl(CR0_READ_SHADOW), |