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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] x86emul: support AVX512{F, BW} shift/rotate insns
commit 396d8d5418ea908a5ef88e7d7a9f22c70ada44c2
Author: Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Fri Dec 21 08:57:31 2018 +0100
Commit: Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Dec 21 08:57:31 2018 +0100
x86emul: support AVX512{F,BW} shift/rotate insns
Note that simd_packed_fp for the opcode space 0f38 major opcodes 14 and
15 is not really correct, but sufficient for the purposes here. Further
adjustments may later be needed for the down conversion unsigned
saturating VPMOV* insns, first and foremost for the different Disp8
scaling those ones use.
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
tools/tests/x86_emulator/evex-disp8.c | 29 ++++++++++++
xen/arch/x86/x86_emulate/x86_emulate.c | 85 +++++++++++++++++++++++++++++++---
2 files changed, 107 insertions(+), 7 deletions(-)
diff --git a/tools/tests/x86_emulator/evex-disp8.c
b/tools/tests/x86_emulator/evex-disp8.c
index 1c0f6c4040..eec0496ffa 100644
--- a/tools/tests/x86_emulator/evex-disp8.c
+++ b/tools/tests/x86_emulator/evex-disp8.c
@@ -178,6 +178,24 @@ static const struct test avx512f_all[] = {
INSN(pmulld, 66, 0f38, 40, vl, d, vl),
INSN(pmuludq, 66, 0f, f4, vl, q, vl),
INSN(por, 66, 0f, eb, vl, dq, vl),
+ INSNX(prol, 66, 0f, 72, 1, vl, dq, vl),
+ INSN(prolv, 66, 0f38, 15, vl, dq, vl),
+ INSNX(pror, 66, 0f, 72, 0, vl, dq, vl),
+ INSN(prorv, 66, 0f38, 14, vl, dq, vl),
+ INSN(pslld, 66, 0f, f2, el_4, d, vl),
+ INSNX(pslld, 66, 0f, 72, 6, vl, d, vl),
+ INSN(psllq, 66, 0f, f3, el_2, q, vl),
+ INSNX(psllq, 66, 0f, 73, 6, vl, q, vl),
+ INSN(psllv, 66, 0f38, 47, vl, dq, vl),
+ INSNX(psra, 66, 0f, 72, 4, vl, dq, vl),
+ INSN(psrad, 66, 0f, e2, el_4, d, vl),
+ INSN(psraq, 66, 0f, e2, el_2, q, vl),
+ INSN(psrav, 66, 0f38, 46, vl, dq, vl),
+ INSN(psrld, 66, 0f, d2, el_4, d, vl),
+ INSNX(psrld, 66, 0f, 72, 2, vl, d, vl),
+ INSN(psrlq, 66, 0f, d3, el_2, q, vl),
+ INSNX(psrlq, 66, 0f, 73, 2, vl, q, vl),
+ INSN(psrlv, 66, 0f38, 45, vl, dq, vl),
INSN(psubd, 66, 0f, fa, vl, d, vl),
INSN(psubq, 66, 0f, fb, vl, q, vl),
INSN(pternlog, 66, 0f3a, 25, vl, dq, vl),
@@ -241,6 +259,17 @@ static const struct test avx512bw_all[] = {
INSN(pmulhw, 66, 0f, e5, vl, w, vl),
INSN(pmullw, 66, 0f, d5, vl, w, vl),
INSN(psadbw, 66, 0f, f6, vl, b, vl),
+ INSNX(pslldq, 66, 0f, 73, 7, vl, b, vl),
+ INSN(psllvw, 66, 0f38, 12, vl, w, vl),
+ INSN(psllw, 66, 0f, f1, el_8, w, vl),
+ INSNX(psllw, 66, 0f, 71, 6, vl, w, vl),
+ INSN(psravw, 66, 0f38, 11, vl, w, vl),
+ INSN(psraw, 66, 0f, e1, el_8, w, vl),
+ INSNX(psraw, 66, 0f, 71, 4, vl, w, vl),
+ INSNX(psrldq, 66, 0f, 73, 3, vl, b, vl),
+ INSN(psrlvw, 66, 0f38, 10, vl, w, vl),
+ INSN(psrlw, 66, 0f, d1, el_8, w, vl),
+ INSNX(psrlw, 66, 0f, 71, 2, vl, w, vl),
INSN(psubb, 66, 0f, f8, vl, b, vl),
INSN(psubsb, 66, 0f, e8, vl, b, vl),
INSN(psubsw, 66, 0f, e9, vl, w, vl),
diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c
b/xen/arch/x86/x86_emulate/x86_emulate.c
index bc34e2e0a6..03540b648f 100644
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -319,7 +319,7 @@ static const struct twobyte_table {
[0x6e] = { DstImplicit|SrcMem|ModRM|Mov, simd_none, d8s_dq64 },
[0x6f] = { DstImplicit|SrcMem|ModRM|Mov, simd_packed_int, d8s_vl },
[0x70] = { SrcImmByte|ModRM|TwoOp, simd_other },
- [0x71 ... 0x73] = { DstImplicit|SrcImmByte|ModRM },
+ [0x71 ... 0x73] = { DstImplicit|SrcImmByte|ModRM, simd_none, d8s_vl },
[0x74 ... 0x76] = { DstImplicit|SrcMem|ModRM, simd_packed_int, d8s_vl },
[0x77] = { DstImplicit|SrcNone },
[0x78] = { ImplicitOps|ModRM },
@@ -366,19 +366,19 @@ static const struct twobyte_table {
[0xc7] = { ImplicitOps|ModRM },
[0xc8 ... 0xcf] = { ImplicitOps },
[0xd0] = { DstImplicit|SrcMem|ModRM, simd_other },
- [0xd1 ... 0xd3] = { DstImplicit|SrcMem|ModRM, simd_128 },
+ [0xd1 ... 0xd3] = { DstImplicit|SrcMem|ModRM, simd_128, 4 },
[0xd4 ... 0xd5] = { DstImplicit|SrcMem|ModRM, simd_packed_int, d8s_vl },
[0xd6] = { DstMem|SrcImplicit|ModRM|Mov, simd_other, 3 },
[0xd7] = { DstReg|SrcImplicit|ModRM|Mov },
[0xd8 ... 0xdf] = { DstImplicit|SrcMem|ModRM, simd_packed_int, d8s_vl },
[0xe0] = { DstImplicit|SrcMem|ModRM, simd_packed_int, d8s_vl },
- [0xe1 ... 0xe2] = { DstImplicit|SrcMem|ModRM, simd_128 },
+ [0xe1 ... 0xe2] = { DstImplicit|SrcMem|ModRM, simd_128, 4 },
[0xe3 ... 0xe5] = { DstImplicit|SrcMem|ModRM, simd_packed_int, d8s_vl },
[0xe6] = { DstImplicit|SrcMem|ModRM|Mov, simd_other },
[0xe7] = { DstMem|SrcImplicit|ModRM|Mov, simd_packed_int, d8s_vl },
[0xe8 ... 0xef] = { DstImplicit|SrcMem|ModRM, simd_packed_int, d8s_vl },
[0xf0] = { DstImplicit|SrcMem|ModRM|Mov, simd_other },
- [0xf1 ... 0xf3] = { DstImplicit|SrcMem|ModRM, simd_128 },
+ [0xf1 ... 0xf3] = { DstImplicit|SrcMem|ModRM, simd_128, 4 },
[0xf4 ... 0xf6] = { DstImplicit|SrcMem|ModRM, simd_packed_int, d8s_vl },
[0xf7] = { DstMem|SrcMem|ModRM|Mov, simd_packed_int },
[0xf8 ... 0xfe] = { DstImplicit|SrcMem|ModRM, simd_packed_int, d8s_vl },
@@ -434,9 +434,9 @@ static const struct ext0f38_table {
} ext0f38_table[256] = {
[0x00 ... 0x0b] = { .simd_size = simd_packed_int },
[0x0c ... 0x0f] = { .simd_size = simd_packed_fp },
- [0x10] = { .simd_size = simd_packed_int },
+ [0x10 ... 0x12] = { .simd_size = simd_packed_int, .d8s = d8s_vl },
[0x13] = { .simd_size = simd_other, .two_op = 1 },
- [0x14 ... 0x16] = { .simd_size = simd_packed_fp },
+ [0x14 ... 0x16] = { .simd_size = simd_packed_fp, .d8s = d8s_vl },
[0x17] = { .simd_size = simd_packed_int, .two_op = 1 },
[0x18] = { .simd_size = simd_scalar_opc, .two_op = 1, .d8s = 2 },
[0x19] = { .simd_size = simd_scalar_opc, .two_op = 1, .d8s = 3 },
@@ -453,7 +453,7 @@ static const struct ext0f38_table {
[0x36 ... 0x3f] = { .simd_size = simd_packed_int, .d8s = d8s_vl },
[0x40] = { .simd_size = simd_packed_int, .d8s = d8s_vl },
[0x41] = { .simd_size = simd_packed_int, .two_op = 1 },
- [0x45 ... 0x47] = { .simd_size = simd_packed_int },
+ [0x45 ... 0x47] = { .simd_size = simd_packed_int, .d8s = d8s_vl },
[0x58 ... 0x59] = { .simd_size = simd_other, .two_op = 1 },
[0x5a] = { .simd_size = simd_128, .two_op = 1 },
[0x78 ... 0x79] = { .simd_size = simd_other, .two_op = 1 },
@@ -5993,10 +5993,15 @@ x86_emulate(
case X86EMUL_OPC_EVEX_66(0x0f, 0xdf): /* vpandn{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f, 0xeb): /* vpor{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f, 0xef): /* vpxor{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f38, 0x14): /* vprorv{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f38, 0x15): /* vprolv{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f38, 0x39): /* vpmins{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f38, 0x3b): /* vpminu{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f38, 0x3d): /* vpmaxs{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f38, 0x3f): /* vpmaxu{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f38, 0x45): /* vpsrlv{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f38, 0x46): /* vpsrav{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f38, 0x47): /* vpsllv{d,q}
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
avx512f_no_sae:
host_and_vcpu_must_have(avx512f);
generate_exception_if(ea.type != OP_MEM && evex.brs, EXC_UD);
@@ -6617,6 +6622,9 @@ x86_emulate(
get_fpu(X86EMUL_FPU_mmx);
goto simd_0f_common;
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xd1): /* vpsrlw
xmm/m128,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xe1): /* vpsraw
xmm/m128,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xf1): /* vpsllw
xmm/m128,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f, 0xf5): /* vpmaddwd
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f, 0xf6): /* vpsadbw
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
fault_suppression = false;
@@ -6916,6 +6924,37 @@ x86_emulate(
ASSERT(!state->simd_size);
break;
+ case X86EMUL_OPC_EVEX_66(0x0f, 0x71): /* Grp12 */
+ switch ( modrm_reg & 7 )
+ {
+ case 2: /* vpsrlw $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ case 4: /* vpsraw $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ case 6: /* vpsllw $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ avx512bw_shift_imm:
+ fault_suppression = false;
+ op_bytes = 16 << evex.lr;
+ state->simd_size = simd_packed_int;
+ goto avx512bw_imm;
+ }
+ goto unrecognized_insn;
+
+ case X86EMUL_OPC_EVEX_66(0x0f, 0x72): /* Grp13 */
+ switch ( modrm_reg & 7 )
+ {
+ case 2: /* vpsrld $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ case 6: /* vpslld $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ generate_exception_if(evex.w, EXC_UD);
+ /* fall through */
+ case 0: /* vpror{d,q} $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ case 1: /* vprol{d,q} $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ case 4: /* vpsra{d,q} $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ avx512f_shift_imm:
+ op_bytes = 16 << evex.lr;
+ state->simd_size = simd_packed_int;
+ goto avx512f_imm8_no_sae;
+ }
+ goto unrecognized_insn;
+
case X86EMUL_OPC(0x0f, 0x73): /* Grp14 */
switch ( modrm_reg & 7 )
{
@@ -6941,6 +6980,19 @@ x86_emulate(
}
goto unrecognized_insn;
+ case X86EMUL_OPC_EVEX_66(0x0f, 0x73): /* Grp14 */
+ switch ( modrm_reg & 7 )
+ {
+ case 2: /* vpsrlq $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ case 6: /* vpsllq $imm8,[xyz]mm/mem,[xyz]mm{k} */
+ generate_exception_if(!evex.w, EXC_UD);
+ goto avx512f_shift_imm;
+ case 3: /* vpsrldq $imm8,{x,y}mm,{x,y}mm */
+ case 7: /* vpslldq $imm8,{x,y}mm,{x,y}mm */
+ goto avx512bw_shift_imm;
+ }
+ goto unrecognized_insn;
+
case X86EMUL_OPC(0x0f, 0x77): /* emms */
case X86EMUL_OPC_VEX(0x0f, 0x77): /* vzero{all,upper} */
if ( vex.opcx != vex_none )
@@ -7881,6 +7933,16 @@ x86_emulate(
}
break;
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xd2): /* vpsrld
xmm/m128,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xd3): /* vpsrlq
xmm/m128,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xe2): /* vpsra{d,q}
xmm/m128,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xf2): /* vpslld
xmm/m128,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f, 0xf3): /* vpsllq
xmm/m128,[xyz]mm,[xyz]mm{k} */
+ generate_exception_if(evex.brs, EXC_UD);
+ fault_suppression = false;
+ if ( b == 0xe2 )
+ goto avx512f_no_sae;
+ /* fall through */
case X86EMUL_OPC_EVEX_66(0x0f, 0xfa): /* vpsubd
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f, 0xfb): /* vpsubq
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
case X86EMUL_OPC_EVEX_66(0x0f, 0xfe): /* vpaddd
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
@@ -8121,6 +8183,14 @@ x86_emulate(
dst.type = OP_NONE;
break;
+ case X86EMUL_OPC_EVEX_66(0x0f38, 0x10): /* vpsrlvw
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f38, 0x11): /* vpsravw
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+ case X86EMUL_OPC_EVEX_66(0x0f38, 0x12): /* vpsllvw
[xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
+ host_and_vcpu_must_have(avx512bw);
+ generate_exception_if(!evex.w || evex.brs, EXC_UD);
+ elem_bytes = 2;
+ goto avx512f_no_sae;
+
case X86EMUL_OPC_EVEX_66(0x0f38, 0x18): /* vbroadcastss xmm/m32,[xyz]mm{k}
*/
generate_exception_if(evex.w || evex.brs, EXC_UD);
avx512_broadcast:
@@ -8882,6 +8952,7 @@ x86_emulate(
generate_exception_if(!evex.r || !evex.R || evex.z, EXC_UD);
if ( !(b & 0x20) )
goto avx512f_imm8_no_sae;
+ avx512bw_imm:
host_and_vcpu_must_have(avx512bw);
generate_exception_if(evex.brs, EXC_UD);
elem_bytes = 1 << evex.w;
--
generated by git-patchbot for /home/xen/git/xen.git#master
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