diff options
| author | Yang Zhong <yang.zhong@intel.com> | 2017-07-03 18:12:15 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-07-05 09:12:44 +0200 |
| commit | ab0a19d4f08d924e052eb369420d264240872f8a (patch) | |
| tree | eef924c777a0d01eed374fdd603125b3048eb28b /target/i386/helper.c | |
| parent | e4b4b6428ca45cb1374dab98ab1d23a213a5db9a (diff) | |
target/i386: move cpu_sync_bndcs_hflags() function
Move cpu_sync_bndcs_hflags() function from mpx_helper.c
to helper.c because mpx_helper.c need be disabled when
tcg is disabled.
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/helper.c')
| -rw-r--r-- | target/i386/helper.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/i386/helper.c b/target/i386/helper.c index ef0505949a..4d584b5984 100644 --- a/target/i386/helper.c +++ b/target/i386/helper.c @@ -29,6 +29,36 @@ #include "hw/i386/apic_internal.h" #endif +void cpu_sync_bndcs_hflags(CPUX86State *env) +{ + uint32_t hflags = env->hflags; + uint32_t hflags2 = env->hflags2; + uint32_t bndcsr; + + if ((hflags & HF_CPL_MASK) == 3) { + bndcsr = env->bndcs_regs.cfgu; + } else { + bndcsr = env->msr_bndcfgs; + } + + if ((env->cr[4] & CR4_OSXSAVE_MASK) + && (env->xcr0 & XSTATE_BNDCSR_MASK) + && (bndcsr & BNDCFG_ENABLE)) { + hflags |= HF_MPX_EN_MASK; + } else { + hflags &= ~HF_MPX_EN_MASK; + } + + if (bndcsr & BNDCFG_BNDPRESERVE) { + hflags2 |= HF2_MPX_PR_MASK; + } else { + hflags2 &= ~HF2_MPX_PR_MASK; + } + + env->hflags = hflags; + env->hflags2 = hflags2; +} + static void cpu_x86_version(CPUX86State *env, int *family, int *model) { int cpuver = env->cpuid_version; |