diff options
| -rw-r--r-- | target/i386/tcg/fpu_helper.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c index e322293371..e1b850f3fc 100644 --- a/target/i386/tcg/fpu_helper.c +++ b/target/i386/tcg/fpu_helper.c @@ -3142,6 +3142,11 @@ void helper_xsetbv(CPUX86State *env, uint32_t ecx, uint64_t mask) goto do_gpf; } + /* SSE can be disabled, but only if AVX is disabled too. */ + if ((mask & (XSTATE_SSE_MASK | XSTATE_YMM_MASK)) == XSTATE_YMM_MASK) { + goto do_gpf; + } + /* Disallow enabling unimplemented features. */ cpu_x86_cpuid(env, 0x0d, 0, &ena_lo, &dummy, &dummy, &ena_hi); ena = ((uint64_t)ena_hi << 32) | ena_lo; |