diff options
| author | Richard Henderson <rth@twiddle.net> | 2015-07-07 14:38:58 +0100 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-02-15 14:50:00 +1100 |
| commit | 7d117ce81ef6258cdcc0d24c774d045fa4b5fd26 (patch) | |
| tree | 527dc8dd09070f575ed06e0677e5e3b9cf206f4a /target-i386/mpx_helper.c | |
| parent | bdd87b3b591add6e4d7c6b6125fcf0d706cc8bc4 (diff) | |
target-i386: Clear bndregs during legacy near jumps
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-i386/mpx_helper.c')
| -rw-r--r-- | target-i386/mpx_helper.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/target-i386/mpx_helper.c b/target-i386/mpx_helper.c index 53d98347d9..1bf717af05 100644 --- a/target-i386/mpx_helper.c +++ b/target-i386/mpx_helper.c @@ -156,3 +156,11 @@ void helper_bndstx32(CPUX86State *env, target_ulong base, target_ulong ptr, cpu_stl_data_ra(env, bte + 4, ub, ra); cpu_stl_data_ra(env, bte + 8, ptr, ra); } + +void helper_bnd_jmp(CPUX86State *env) +{ + if (!(env->hflags2 & HF2_MPX_PR_MASK)) { + memset(env->bnd_regs, 0, sizeof(env->bnd_regs)); + env->hflags &= ~HF_MPX_IU_MASK; + } +} |