On 3/24/21 2:00 AM, Robert Hoo wrote:
+ if ((env->xcr0 & XFEATURE_AVX512) == XFEATURE_AVX512) {
+ /* XSAVE enabled AVX512 */
+ nb = (env->hflags & HF_CS64_MASK) ? 32 : 8;
+ for (i = 0; i < nb; i++) {
+ qemu_fprintf(f, "ZMM%02d=0x%016lx %016lx %016lx %016lx %016lx "
+ "%016lx %016lx %016lx\n",
+ i,
+ env->xmm_regs[i].ZMM_Q(7),
+ env->xmm_regs[i].ZMM_Q(6),
+ env->xmm_regs[i].ZMM_Q(5),
+ env->xmm_regs[i].ZMM_Q(4),
+ env->xmm_regs[i].ZMM_Q(3),
+ env->xmm_regs[i].ZMM_Q(2),
+ env->xmm_regs[i].ZMM_Q(1),
+ env->xmm_regs[i].ZMM_Q(0));
+ }
Dump opmask regs?
+ } else if (env->xcr0 & XFEATURE_AVX) {
This is normally a 2-bit test.
+ /* XSAVE enabled AVX */
+ nb = env->hflags & HF_CS64_MASK ? 16 : 8;
+ for (i = 0; i < nb; i++) {
+ qemu_fprintf(f, "YMM%02d=0x%016lx %016lx %016lx %016lx\n",
+ i,
+ env->xmm_regs[i].ZMM_Q(3),
+ env->xmm_regs[i].ZMM_Q(2),
+ env->xmm_regs[i].ZMM_Q(1),
+ env->xmm_regs[i].ZMM_Q(0));
+ }
+ } else { /* SSE and below cases */
+ nb = env->hflags & HF_CS64_MASK ? 16 : 8;
+ for (i = 0; i < nb; i++) {
+ qemu_fprintf(f, "XMM%02d=0x%016lx %016lx",
+ i,
+ env->xmm_regs[i].ZMM_Q(1),
+ env->xmm_regs[i].ZMM_Q(0));
+ if ((i & 1) == 1)
+ qemu_fprintf(f, "\n");
+ else
+ qemu_fprintf(f, " ");
I'd be tempted to merge that second printf into the first, with "%s" and (i & 1
? "\n" : " "). Otherwise you'll need to add braces to that IF to satisfy
checkpatch.
+#define XFEATURE_X87 (1UL << 0)
+#define XFEATURE_SSE (1UL << 1)
+#define XFEATURE_AVX (1UL << 2)
+#define XFEATURE_AVX512_OPMASK (1UL << 5)
+#define XFEATURE_AVX512_ZMM_Hi256 (1UL << 6)
+#define XFEATURE_AVX512_Hi16_ZMM (1UL << 7)
+#define XFEATURE_AVX512 (XFEATURE_AVX512_OPMASK | \
+ XFEATURE_AVX512_ZMM_Hi256 | \
+ XFEATURE_AVX512_Hi16_ZMM)
Except for the last, these already exist under the name XSTATE_*_MASK.
I think you can just as well declare local variables to hold the 3 bits for the
avx512 test and the 2 bits for the avx test.
r~
