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| author | Eduardo Habkost <ehabkost@redhat.com> | 2016-09-22 14:58:32 -0300 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2016-09-27 16:17:17 -0300 |
| commit | 8057c621b1b17cbcb35fe67d1a09ada9055873a9 (patch) | |
| tree | 30d27b49bb6168236c5b90faa12457f13bbce48e /target-i386 | |
| parent | 4928cd6de6b4211a79f98c8dc39115be1e815c2b (diff) | |
| download | qemu-8057c621b1b17cbcb35fe67d1a09ada9055873a9.zip qemu-8057c621b1b17cbcb35fe67d1a09ada9055873a9.tar.gz qemu-8057c621b1b17cbcb35fe67d1a09ada9055873a9.tar.bz2 | |
target-i386: xsave: Simplify CPUID[0xD,0].{EAX,EDX} calculation
Instead of assigning individual bits in a loop, just copy the
values from ena_mask.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/cpu.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 9968581..7e66003 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -2523,15 +2523,11 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, for (i = 2; i < ARRAY_SIZE(x86_ext_save_areas); i++) { const ExtSaveArea *esa = &x86_ext_save_areas[i]; if ((ena_mask >> i) & 1) { - if (i < 32) { - *eax |= 1u << i; - } else { - *edx |= 1u << (i - 32); - } *ecx = MAX(*ecx, esa->offset + esa->size); } } - *eax |= ena_mask & (XSTATE_FP_MASK | XSTATE_SSE_MASK); + *eax = ena_mask; + *edx = ena_mask >> 32; *ebx = *ecx; } else if (count == 1) { *eax = env->features[FEAT_XSAVE]; |