diff options
| author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-12-10 15:02:16 +0000 |
|---|---|---|
| committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-12-10 15:02:16 +0000 |
| commit | 32938e127f50a40844a0fb9c5abb8691aeeccf7e (patch) | |
| tree | 586d80635408f8e938f6ac1e3f21b0f4719bc9b3 /target-i386 | |
| parent | 4efbe58fb57314f422578a543fe3f47ffc854b68 (diff) | |
target-i386: Fix jmp im on x86_64 when executing 32-bit code
When running grub-install (32-bit) on an x86_64 Linux system in qemu, it
hangs on a pagefault forever, because an integer overflow occurs on the
IP on "jmp im". This patch masks overflows for 32 bit IPs on a 64 bit
system, just like it is done for 16 bit IPs already.
Using this patch, x86_64 openSUSE installation works again.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5963 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/translate.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index 423fca380d..0fd509a590 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -6165,6 +6165,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) tval += s->pc - s->cs_base; if (s->dflag == 0) tval &= 0xffff; + else if(!CODE64(s)) + tval &= 0xffffffff; gen_jmp(s, tval); break; case 0xea: /* ljmp im */ |