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| author | Lara Lazier <laramglazier@gmail.com> | 2021-07-25 11:08:55 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-07-29 10:15:52 +0200 |
| commit | eceb4f01123355a7045ec4ba9cd547511682a4d9 (patch) | |
| tree | fc8629ffbea81f7dbffff78f248752b24ce38d33 | |
| parent | 5b945f23d651a71aa722cc6af84a480d41bc549a (diff) | |
| download | focaccia-qemu-eceb4f01123355a7045ec4ba9cd547511682a4d9.tar.gz focaccia-qemu-eceb4f01123355a7045ec4ba9cd547511682a4d9.zip | |
target/i386: Added consistency checks for event injection
VMRUN exits with SVM_EXIT_ERR if either: * The event injected has a reserved type. * When the event injected is of type 3 (exception), and the vector that has been specified does not correspond to an exception. This does not fix the entire exc_inj test in kvm-unit-tests. Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210725090855.19713-1-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | target/i386/tcg/sysemu/svm_helper.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target/i386/tcg/sysemu/svm_helper.c b/target/i386/tcg/sysemu/svm_helper.c index 145511d635..90a9de30f8 100644 --- a/target/i386/tcg/sysemu/svm_helper.c +++ b/target/i386/tcg/sysemu/svm_helper.c @@ -383,6 +383,9 @@ void helper_vmrun(CPUX86State *env, int aflag, int next_eip_addend) cpu_loop_exit(cs); break; case SVM_EVTINJ_TYPE_EXEPT: + if (vector == EXCP02_NMI || vector >= 31) { + cpu_vmexit(env, SVM_EXIT_ERR, 0, GETPC()); + } cs->exception_index = vector; env->error_code = event_inj_err; env->exception_is_int = 0; @@ -398,6 +401,9 @@ void helper_vmrun(CPUX86State *env, int aflag, int next_eip_addend) qemu_log_mask(CPU_LOG_TB_IN_ASM, "SOFT"); cpu_loop_exit(cs); break; + default: + cpu_vmexit(env, SVM_EXIT_ERR, 0, GETPC()); + break; } qemu_log_mask(CPU_LOG_TB_IN_ASM, " %#x %#x\n", cs->exception_index, env->error_code); |