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KVM: x86: dump_vmcs should include the autoload/autostore MSR lists

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When dumping the current VMCS state, include the MSRs that are being
automatically loaded/stored during VM entry/exit.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Edmondson <david.edmondson@oracle.com>
Message-Id: <20210318120841.133123-6-david.edmondson@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Edmondson 2021-03-18 12:08:41 +00:00 committed by Paolo Bonzini
parent 0702a3cbbf
commit 8486039a6c
1 changed files with 16 additions and 0 deletions
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16
arch/x86/kvm/vmx/vmx.c
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@ -5721,6 +5721,16 @@ static void vmx_dump_dtsel(char *name, uint32_t limit)
vmcs_readl(limit + GUEST_GDTR_BASE - GUEST_GDTR_LIMIT));
}
static void vmx_dump_msrs(char *name, struct vmx_msrs *m)
{
unsigned int i;
struct vmx_msr_entry *e;
pr_err("MSR %s:\n", name);
for (i = 0, e = m->val; i < m->nr; ++i, ++e)
pr_err(" %2d: msr=0x%08x value=0x%016llx\n", i, e->index, e->value);
}
void dump_vmcs(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
@ -5802,6 +5812,10 @@ void dump_vmcs(struct kvm_vcpu *vcpu)
if (secondary_exec_control & SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY)
pr_err("InterruptStatus = %04x\n",
vmcs_read16(GUEST_INTR_STATUS));
if (vmcs_read32(VM_ENTRY_MSR_LOAD_COUNT) > 0)
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);
pr_err("*** Host State ***\n");
pr_err("RIP = 0x%016lx RSP = 0x%016lx\n",
@ -5831,6 +5845,8 @@ void dump_vmcs(struct kvm_vcpu *vcpu)
vmexit_ctl & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL)
pr_err("PerfGlobCtl = 0x%016llx\n",
vmcs_read64(HOST_IA32_PERF_GLOBAL_CTRL));
if (vmcs_read32(VM_EXIT_MSR_LOAD_COUNT) > 0)
vmx_dump_msrs("host autoload", &vmx->msr_autoload.host);
pr_err("*** Control State ***\n");
pr_err("PinBased=%08x CPUBased=%08x SecondaryExec=%08x\n",