From 6d05a965addbea9c95eed7ab66594fd4fdf33e4c Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Mon, 9 Mar 2020 16:52:16 +0100 Subject: [PATCH] KVM: selftests: enlightened VMPTRLD with an incorrect GPA 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 Signed-off-by: Paolo Bonzini --- 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 17da579..e6e62e5 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_FAIL("Unknown ucall %lu", 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); } -- 2.7.4