diff options
Diffstat (limited to 'tools/testing/selftests/kvm/lib/x86_64/processor.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/x86_64/processor.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index 906132e70fa4..1a32b1c75e9a 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -1127,6 +1127,20 @@ static void set_idt_entry(struct kvm_vm *vm, int vector, unsigned long addr, e->offset2 = addr >> 32; } + +static bool kvm_fixup_exception(struct ex_regs *regs) +{ + if (regs->r9 != KVM_EXCEPTION_MAGIC || regs->rip != regs->r10) + return false; + + if (regs->vector == DE_VECTOR) + return false; + + regs->rip = regs->r11; + regs->r9 = regs->vector; + return true; +} + void kvm_exit_unexpected_vector(uint32_t value) { ucall(UCALL_UNHANDLED, 1, value); @@ -1142,6 +1156,9 @@ void route_exception(struct ex_regs *regs) return; } + if (kvm_fixup_exception(regs)) + return; + kvm_exit_unexpected_vector(regs->vector); } |