| Message ID | a7dab33e-eda6-f988-52e9-f3d32db7538d@scieneer.com |
|---|---|
| State | New |
| Headers | show |
| Series | helper_syscall x86_64: clear exception_is_int | expand |
On 22/09/20 06:17, Douglas Crosher wrote: > > The exception_is_int flag may be set on entry to helper_syscall, > e.g. after a prior interrupt that has returned, and processing > EXCP_SYSCALL as an interrupt causes it to fail so clear this flag. > > Signed-off-by: Douglas Crosher <dtc-ubuntu@scieneer.com> > --- > target/i386/seg_helper.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/target/i386/seg_helper.c b/target/i386/seg_helper.c > index b96de068ca..be88938c2a 100644 > --- a/target/i386/seg_helper.c > +++ b/target/i386/seg_helper.c > @@ -975,6 +975,7 @@ void helper_syscall(CPUX86State *env, int > next_eip_addend) > CPUState *cs = env_cpu(env); > > cs->exception_index = EXCP_SYSCALL; > + env->exception_is_int = 0; > env->exception_next_eip = env->eip + next_eip_addend; > cpu_loop_exit(cs); > } Queued, thanks. Paolo
diff --git a/target/i386/seg_helper.c b/target/i386/seg_helper.c index b96de068ca..be88938c2a 100644 --- a/target/i386/seg_helper.c +++ b/target/i386/seg_helper.c @@ -975,6 +975,7 @@ void helper_syscall(CPUX86State *env, int next_eip_addend) CPUState *cs = env_cpu(env); cs->exception_index = EXCP_SYSCALL; + env->exception_is_int = 0; env->exception_next_eip = env->eip + next_eip_addend; cpu_loop_exit(cs);
The exception_is_int flag may be set on entry to helper_syscall, e.g. after a prior interrupt that has returned, and processing EXCP_SYSCALL as an interrupt causes it to fail so clear this flag. Signed-off-by: Douglas Crosher <dtc-ubuntu@scieneer.com> --- target/i386/seg_helper.c | 1 + 1 file changed, 1 insertion(+) }