exec: fix breakpoint_invalidate when pc may not be translated
This fixes qemu abort with the following message:
include/qemu/int128.h:22: int128_get64: Assertion `!a.hi' failed.
which happens due to attempt to invalidate breakpoint by virtual address
for which get_phys_page_debug couldn't find mapping.
For more details see
http://lists.nongnu.org/archive/html/qemu-devel/2013-09/msg04582.html
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/exec.c b/exec.c
index 79610ce..6492b0c 100644
--- a/exec.c
+++ b/exec.c
@@ -409,8 +409,10 @@
#else
static void breakpoint_invalidate(CPUState *cpu, target_ulong pc)
{
- tb_invalidate_phys_addr(cpu_get_phys_page_debug(cpu, pc) |
- (pc & ~TARGET_PAGE_MASK));
+ hwaddr phys = cpu_get_phys_page_debug(cpu, pc);
+ if (phys != -1) {
+ tb_invalidate_phys_addr(phys | (pc & ~TARGET_PAGE_MASK));
+ }
}
#endif
#endif /* TARGET_HAS_ICE */
