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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging] x86emul: extend decoding / mem access testing to XOP-encoded insns
commit 3cb82fe3ff4262ddd4fa594c425cbd8f3f14dc76
Author: Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Wed Aug 5 10:27:31 2020 +0200
Commit: Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Aug 5 10:27:31 2020 +0200
x86emul: extend decoding / mem access testing to XOP-encoded insns
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
tools/tests/x86_emulator/predicates.c | 147 ++++++++++++++++++++++++++++++++++
1 file changed, 147 insertions(+)
diff --git a/tools/tests/x86_emulator/predicates.c
b/tools/tests/x86_emulator/predicates.c
index 822d7be404..98ffcdb151 100644
--- a/tools/tests/x86_emulator/predicates.c
+++ b/tools/tests/x86_emulator/predicates.c
@@ -1474,6 +1474,96 @@ static const struct {
{ vex_0f3a, ARRAY_SIZE(vex_0f3a) },
};
+static const struct xop {
+ uint8_t opc[2];
+ uint8_t w:2;
+ uint8_t l:2;
+} xop_08[] = {
+ { { 0x85 }, W0, L0 }, /* vpmacssww */
+ { { 0x86 }, W0, L0 }, /* vpmacsswd */
+ { { 0x87 }, W0, L0 }, /* vpmacssdql */
+ { { 0x8e }, W0, L0 }, /* vpmacssdd */
+ { { 0x8f }, W0, L0 }, /* vpmacssdqh */
+ { { 0x95 }, W0, L0 }, /* vpmacsww */
+ { { 0x96 }, W0, L0 }, /* vpmacswd */
+ { { 0x97 }, W0, L0 }, /* vpmacsdql */
+ { { 0x9e }, W0, L0 }, /* vpmacsdd */
+ { { 0x9f }, W0, L0 }, /* vpmacsdqh */
+ { { 0xa2 }, Wn, Ln }, /* vpcmov */
+ { { 0xa3 }, Wn, L0 }, /* vpperm */
+ { { 0xa6 }, W0, L0 }, /* vpmadcsswd */
+ { { 0xb6 }, W0, L0 }, /* vpmadcswd */
+ { { 0xc0 }, W0, L0 }, /* vprotb */
+ { { 0xc1 }, W0, L0 }, /* vprotw */
+ { { 0xc2 }, W0, L0 }, /* vprotd */
+ { { 0xc3 }, W0, L0 }, /* vprotq */
+ { { 0xcc }, W0, L0 }, /* vpcomb */
+ { { 0xcd }, W0, L0 }, /* vpcomw */
+ { { 0xce }, W0, L0 }, /* vpcomd */
+ { { 0xcf }, W0, L0 }, /* vpcomq */
+ { { 0xec }, W0, L0 }, /* vpcomub */
+ { { 0xed }, W0, L0 }, /* vpcomuw */
+ { { 0xee }, W0, L0 }, /* vpcomud */
+ { { 0xef }, W0, L0 }, /* vpcomuq */
+}, xop_09[] = {
+ { { 0x01, 0x08 }, Wn, L0 }, /* blcfill */
+ { { 0x01, 0x10 }, Wn, L0 }, /* blsfill */
+ { { 0x01, 0x18 }, Wn, L0 }, /* blcs */
+ { { 0x01, 0x20 }, Wn, L0 }, /* tzmsk */
+ { { 0x01, 0x28 }, Wn, L0 }, /* blcic */
+ { { 0x01, 0x30 }, Wn, L0 }, /* blsic */
+ { { 0x01, 0x38 }, Wn, L0 }, /* t1mskc */
+ { { 0x02, 0x08 }, Wn, L0 }, /* blcmsk */
+ { { 0x02, 0x30 }, Wn, L0 }, /* blci */
+ { { 0x02, 0xc0 }, Wn, L0 }, /* llwpcb */
+ { { 0x02, 0xc8 }, Wn, L0 }, /* slwpcb */
+ { { 0x80 }, W0, Ln }, /* vfrczps */
+ { { 0x81 }, W0, Ln }, /* vfrczpd */
+ { { 0x82 }, W0, L0 }, /* vfrczss */
+ { { 0x83 }, W0, L0 }, /* vfrczsd */
+ { { 0x90 }, Wn, L0 }, /* vprotb */
+ { { 0x91 }, Wn, L0 }, /* vprotw */
+ { { 0x92 }, Wn, L0 }, /* vprotd */
+ { { 0x93 }, Wn, L0 }, /* vprotq */
+ { { 0x94 }, Wn, L0 }, /* vpshlb */
+ { { 0x95 }, Wn, L0 }, /* vpshlw */
+ { { 0x96 }, Wn, L0 }, /* vpshld */
+ { { 0x97 }, Wn, L0 }, /* vpshlq */
+ { { 0x9c }, Wn, L0 }, /* vpshab */
+ { { 0x9d }, Wn, L0 }, /* vpshaw */
+ { { 0x9e }, Wn, L0 }, /* vpshad */
+ { { 0x9f }, Wn, L0 }, /* vpshaq */
+ { { 0xc1 }, W0, L0 }, /* vphaddbw */
+ { { 0xc2 }, W0, L0 }, /* vphaddbd */
+ { { 0xc3 }, W0, L0 }, /* vphaddbq */
+ { { 0xc6 }, W0, L0 }, /* vphaddwd */
+ { { 0xc7 }, W0, L0 }, /* vphaddwq */
+ { { 0xcb }, W0, L0 }, /* vphadddq */
+ { { 0xd1 }, W0, L0 }, /* vphaddubw */
+ { { 0xd2 }, W0, L0 }, /* vphaddubd */
+ { { 0xd3 }, W0, L0 }, /* vphaddubq */
+ { { 0xd6 }, W0, L0 }, /* vphadduwd */
+ { { 0xd7 }, W0, L0 }, /* vphadduwq */
+ { { 0xdb }, W0, L0 }, /* vphaddudq */
+ { { 0xe1 }, W0, L0 }, /* vphsubbw */
+ { { 0xe2 }, W0, L0 }, /* vphsubwd */
+ { { 0xe3 }, W0, L0 }, /* vphsubdq */
+}, xop_0a[] = {
+ { { 0x10 }, Wn, L0 }, /* bextr */
+ { { 0x12, 0x00 }, Wn, L0 }, /* lwpins */
+ { { 0x12, 0x08 }, Wn, L0 }, /* lwpval */
+};
+
+static const struct {
+ const struct xop *tbl;
+ unsigned int num;
+ unsigned int imm;
+} xop[] = {
+ { xop_08, ARRAY_SIZE(xop_08), 1 },
+ { xop_09, ARRAY_SIZE(xop_09), 0 },
+ { xop_0a, ARRAY_SIZE(xop_0a), 4 },
+};
+
#undef Wn
#undef Ln
@@ -1738,6 +1828,63 @@ void predicates_test(void *instr, struct
x86_emulate_ctxt *ctxt,
}
}
+ for ( x = 0; x < ARRAY_SIZE(xop); ++x )
+ {
+ for ( t = 0; t < xop[x].num; ++t )
+ {
+ uint8_t *ptr = instr;
+ unsigned int modrm;
+ enum mem_access mem;
+
+ memset(instr + 5, 0xcc, 10);
+
+ *ptr++ = 0x8f;
+ *ptr++ = 0xe8 + x;
+ *ptr++ = 0x78;
+ memcpy(ptr, xop[x].tbl[t].opc, 2);
+ memset(ptr + 2, 0, xop[x].imm);
+
+ modrm = ptr[1] & 0xc0 ? 0 : 4;
+ mem = ptr[1] & 0xc0 ? mem_none : mem_read;
+
+ assert(xop[x].tbl[t].w != WIG);
+ assert(xop[x].tbl[t].l != LIG);
+
+ if ( xop[x].tbl[t].w & W0 )
+ {
+ if ( xop[x].tbl[t].l & L0 )
+ do_test(instr, 5 + xop[x].imm, modrm, mem, ctxt,
fetch);
+
+ if ( xop[x].tbl[t].l & L1 )
+ {
+ ptr[-1] = 0x7c;
+ ptr[1] = mem != mem_none ? 0x00 : 0xc0;
+
+ do_test(instr, 5 + xop[x].imm, modrm, mem, ctxt,
fetch);
+ }
+ }
+
+ if ( xop[x].tbl[t].w & W1 )
+ {
+ if ( xop[x].tbl[t].l & L0 )
+ {
+ ptr[-1] = 0xf8;
+ ptr[1] = mem != mem_none ? 0x00 : 0xc0;
+
+ do_test(instr, 5 + xop[x].imm, modrm, mem, ctxt,
fetch);
+ }
+
+ if ( xop[x].tbl[t].l & L1 )
+ {
+ ptr[-1] = 0xfc;
+ ptr[1] = mem != mem_none ? 0x00 : 0xc0;
+
+ do_test(instr, 5 + xop[x].imm, modrm, mem, ctxt,
fetch);
+ }
+ }
+ }
+ }
+
if ( errors )
exit(1);
--
generated by git-patchbot for /home/xen/git/xen.git#staging
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