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Subject[PATCH 6/6] KVM: selftests: enlightened VMPTRLD with an incorrect GPA
Date
Check that guest doesn't hang when an invalid eVMCS GPA is specified.
Testing that #UD is injected would probably be better but selftests lack
the infrastructure currently.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
tools/testing/selftests/kvm/x86_64/evmcs_test.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/x86_64/evmcs_test.c b/tools/testing/selftests/kvm/x86_64/evmcs_test.c
index 10e9c158dc96..fed8f933748b 100644
--- a/tools/testing/selftests/kvm/x86_64/evmcs_test.c
+++ b/tools/testing/selftests/kvm/x86_64/evmcs_test.c
@@ -72,6 +72,10 @@ void guest_code(struct vmx_pages *vmx_pages)
l1_guest_code(vmx_pages);

GUEST_DONE();
+
+ /* Try enlightened vmptrld with an incorrect GPA */
+ evmcs_vmptrld(0xdeadbeef, vmx_pages->enlightened_vmcs);
+ GUEST_ASSERT(vmlaunch());
}

int main(int argc, char *argv[])
@@ -120,7 +124,7 @@ int main(int argc, char *argv[])
case UCALL_SYNC:
break;
case UCALL_DONE:
- goto done;
+ goto part1_done;
default:
TEST_ASSERT(false, "Unknown ucall 0x%x.", uc.cmd);
}
@@ -152,6 +156,10 @@ int main(int argc, char *argv[])
(ulong) regs2.rdi, (ulong) regs2.rsi);
}

-done:
+part1_done:
+ _vcpu_run(vm, VCPU_ID);
+ TEST_ASSERT(run->exit_reason == KVM_EXIT_SHUTDOWN,
+ "Unexpected successful VMEnter with invalid eVMCS pointer!");
+
kvm_vm_free(vm);
}
--
2.24.1
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