motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-03 15:53:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target-i386: Clear bndregs during legacy near jumps

Browse source 
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2015-07-07 14:38:58 +01:00
parent bdd87b3b59
commit 7d117ce81e
3 changed files with 29 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

8
target-i386/mpx_helper.c
View file

@ -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;
}
}