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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v8 02/50] x86emul: support AVX512{F, BW, DQ} extract insns
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
---
v7: Re-base.
v4: Make use of d8s_dq64.
v3: New.
--- a/tools/tests/x86_emulator/evex-disp8.c
+++ b/tools/tests/x86_emulator/evex-disp8.c
@@ -212,6 +212,7 @@ static const struct test avx512f_all[] =
};
static const struct test avx512f_128[] = {
+ INSN(extractps, 66, 0f3a, 17, el, d, el),
INSN(mov, 66, 0f, 6e, el, dq64, el),
INSN(mov, 66, 0f, 7e, el, dq64, el),
INSN(movq, f3, 0f, 7e, el, q, el),
@@ -221,10 +222,14 @@ static const struct test avx512f_128[] =
static const struct test avx512f_no128[] = {
INSN(broadcastf32x4, 66, 0f38, 1a, el_4, d, vl),
INSN(broadcastsd, 66, 0f38, 19, el, q, el),
+ INSN(extractf32x4, 66, 0f3a, 19, el_4, d, vl),
+ INSN(extracti32x4, 66, 0f3a, 39, el_4, d, vl),
};
static const struct test avx512f_512[] = {
INSN(broadcastf64x4, 66, 0f38, 1b, el_4, q, vl),
+ INSN(extractf64x4, 66, 0f3a, 1b, el_4, q, vl),
+ INSN(extracti64x4, 66, 0f3a, 3b, el_4, q, vl),
};
static const struct test avx512bw_all[] = {
@@ -280,6 +285,12 @@ static const struct test avx512bw_all[]
INSN(ptestnm, f3, 0f38, 26, vl, bw, vl),
};
+static const struct test avx512bw_128[] = {
+ INSN(pextrb, 66, 0f3a, 14, el, b, el),
+// pextrw, 66, 0f, c5, w
+ INSN(pextrw, 66, 0f3a, 15, el, w, el),
+};
+
static const struct test avx512dq_all[] = {
INSN_PFP(and, 0f, 54),
INSN_PFP(andn, 0f, 55),
@@ -288,13 +299,21 @@ static const struct test avx512dq_all[]
INSN_PFP(xor, 0f, 57),
};
+static const struct test avx512dq_128[] = {
+ INSN(pextr, 66, 0f3a, 16, el, dq64, el),
+};
+
static const struct test avx512dq_no128[] = {
INSN(broadcastf32x2, 66, 0f38, 19, el_2, d, vl),
INSN(broadcastf64x2, 66, 0f38, 1a, el_2, q, vl),
+ INSN(extractf64x2, 66, 0f3a, 19, el_2, q, vl),
+ INSN(extracti64x2, 66, 0f3a, 39, el_2, q, vl),
};
static const struct test avx512dq_512[] = {
INSN(broadcastf32x8, 66, 0f38, 1b, el_8, d, vl),
+ INSN(extractf32x8, 66, 0f3a, 1b, el_8, d, vl),
+ INSN(extracti32x8, 66, 0f3a, 3b, el_8, d, vl),
};
static const unsigned char vl_all[] = { VL_512, VL_128, VL_256 };
@@ -632,7 +651,9 @@ void evex_disp8_test(void *instr, struct
RUN(avx512f, no128);
RUN(avx512f, 512);
RUN(avx512bw, all);
+ RUN(avx512bw, 128);
RUN(avx512dq, all);
+ RUN(avx512dq, 128);
RUN(avx512dq, no128);
RUN(avx512dq, 512);
}
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -512,9 +512,13 @@ static const struct ext0f3a_table {
[0x0a ... 0x0b] = { .simd_size = simd_scalar_opc },
[0x0c ... 0x0d] = { .simd_size = simd_packed_fp },
[0x0e ... 0x0f] = { .simd_size = simd_packed_int },
- [0x14 ... 0x17] = { .simd_size = simd_none, .to_mem = 1, .two_op = 1 },
+ [0x14] = { .simd_size = simd_none, .to_mem = 1, .two_op = 1, .d8s = 0 },
+ [0x15] = { .simd_size = simd_none, .to_mem = 1, .two_op = 1, .d8s = 1 },
+ [0x16] = { .simd_size = simd_none, .to_mem = 1, .two_op = 1, .d8s =
d8s_dq64 },
+ [0x17] = { .simd_size = simd_none, .to_mem = 1, .two_op = 1, .d8s = 2 },
[0x18] = { .simd_size = simd_128 },
- [0x19] = { .simd_size = simd_128, .to_mem = 1, .two_op = 1 },
+ [0x19] = { .simd_size = simd_128, .to_mem = 1, .two_op = 1, .d8s = 4 },
+ [0x1b] = { .simd_size = simd_256, .to_mem = 1, .two_op = 1, .d8s =
d8s_vl_by_2 },
[0x1d] = { .simd_size = simd_other, .to_mem = 1, .two_op = 1 },
[0x1e ... 0x1f] = { .simd_size = simd_packed_int, .d8s = d8s_vl },
[0x20] = { .simd_size = simd_none },
@@ -523,7 +527,8 @@ static const struct ext0f3a_table {
[0x25] = { .simd_size = simd_packed_int, .d8s = d8s_vl },
[0x30 ... 0x33] = { .simd_size = simd_other, .two_op = 1 },
[0x38] = { .simd_size = simd_128 },
- [0x39] = { .simd_size = simd_128, .to_mem = 1, .two_op = 1 },
+ [0x39] = { .simd_size = simd_128, .to_mem = 1, .two_op = 1, .d8s = 4 },
+ [0x3b] = { .simd_size = simd_256, .to_mem = 1, .two_op = 1, .d8s =
d8s_vl_by_2 },
[0x3e ... 0x3f] = { .simd_size = simd_packed_int, .d8s = d8s_vl },
[0x40 ... 0x41] = { .simd_size = simd_packed_fp },
[0x42] = { .simd_size = simd_packed_int },
@@ -2676,6 +2681,8 @@ x86_decode_0f3a(
... X86EMUL_OPC_66(0, 0x17): /* pextr*, extractps */
case X86EMUL_OPC_VEX_66(0, 0x14)
... X86EMUL_OPC_VEX_66(0, 0x17): /* vpextr*, vextractps */
+ case X86EMUL_OPC_EVEX_66(0, 0x14)
+ ... X86EMUL_OPC_EVEX_66(0, 0x17): /* vpextr*, vextractps */
case X86EMUL_OPC_VEX_F2(0, 0xf0): /* rorx */
break;
@@ -8878,9 +8885,9 @@ x86_emulate(
opc[0] = b;
/* Convert memory/GPR operand to (%rAX). */
rex_prefix &= ~REX_B;
- vex.b = 1;
+ evex.b = vex.b = 1;
if ( !mode_64bit() )
- vex.w = 0;
+ evex.w = vex.w = 0;
opc[1] = modrm & 0x38;
opc[2] = imm1;
opc[3] = 0xc3;
@@ -8890,7 +8897,10 @@ x86_emulate(
--opc;
}
- copy_REX_VEX(opc, rex_prefix, vex);
+ if ( evex_encoded() )
+ copy_EVEX(opc, evex);
+ else
+ copy_REX_VEX(opc, rex_prefix, vex);
invoke_stub("", "", "=m" (dst.val) : "a" (&dst.val));
put_stub(stub);
@@ -8915,6 +8925,52 @@ x86_emulate(
opc = init_prefixes(stub);
goto pextr;
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xc5): /* vpextrw $imm8,xmm,reg */
+ generate_exception_if(ea.type != OP_REG, EXC_UD);
+ /* Convert to alternative encoding: We want to use a memory operand. */
+ evex.opcx = ext_0f3a;
+ b = 0x15;
+ modrm <<= 3;
+ evex.r = evex.b;
+ evex.R = evex.x;
+ /* fall through */
+ case X86EMUL_OPC_EVEX_66(0x0f3a, 0x14): /* vpextrb $imm8,xmm,r/m */
+ case X86EMUL_OPC_EVEX_66(0x0f3a, 0x15): /* vpextrw $imm8,xmm,r/m */
+ case X86EMUL_OPC_EVEX_66(0x0f3a, 0x16): /* vpextr{d,q} $imm8,xmm,r/m */
+ case X86EMUL_OPC_EVEX_66(0x0f3a, 0x17): /* vextractps $imm8,xmm,r/m */
+ generate_exception_if((evex.lr || evex.reg != 0xf || !evex.RX ||
+ evex.opmsk || evex.brs),
+ EXC_UD);
+ if ( !(b & 2) )
+ host_and_vcpu_must_have(avx512bw);
+ else if ( !(b & 1) )
+ host_and_vcpu_must_have(avx512dq);
+ else
+ host_and_vcpu_must_have(avx512f);
+ get_fpu(X86EMUL_FPU_zmm);
+ opc = init_evex(stub);
+ goto pextr;
+
+ case X86EMUL_OPC_EVEX_66(0x0f3a, 0x19): /* vextractf32x4
$imm8,{y,z}mm,xmm/m128{k} */
+ /* vextractf64x2
$imm8,{y,z}mm,xmm/m128{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f3a, 0x39): /* vextracti32x4
$imm8,{y,z}mm,xmm/m128{k} */
+ /* vextracti64x2
$imm8,{y,z}mm,xmm/m128{k} */
+ if ( evex.w )
+ host_and_vcpu_must_have(avx512dq);
+ generate_exception_if(!evex.lr || evex.brs, EXC_UD);
+ fault_suppression = false;
+ goto avx512f_imm8_no_sae;
+
+ case X86EMUL_OPC_EVEX_66(0x0f3a, 0x1b): /* vextractf32x8
$imm8,zmm,ymm/m256{k} */
+ /* vextractf64x4
$imm8,zmm,ymm/m256{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f3a, 0x3b): /* vextracti32x8
$imm8,zmm,ymm/m256{k} */
+ /* vextracti64x4
$imm8,zmm,ymm/m256{k} */
+ if ( !evex.w )
+ host_and_vcpu_must_have(avx512dq);
+ generate_exception_if(evex.lr != 2 || evex.brs, EXC_UD);
+ fault_suppression = false;
+ goto avx512f_imm8_no_sae;
+
case X86EMUL_OPC_VEX_66(0x0f3a, 0x1d): /* vcvtps2ph $imm8,{x,y}mm,xmm/mem
*/
{
uint32_t mxcsr;
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