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[Qemu-devel] [RFC PATCH v3 15/46] target/i386: introduce function ck_cpu
From: |
Jan Bobek |
Subject: |
[Qemu-devel] [RFC PATCH v3 15/46] target/i386: introduce function ck_cpuid |
Date: |
Wed, 14 Aug 2019 22:08:57 -0400 |
Introduce a helper function to take care of instruction CPUID checks.
Signed-off-by: Jan Bobek <address@hidden>
---
target/i386/translate.c | 48 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/target/i386/translate.c b/target/i386/translate.c
index 6296a02991..0cffa2226b 100644
--- a/target/i386/translate.c
+++ b/target/i386/translate.c
@@ -4500,6 +4500,54 @@ static void gen_sse(CPUX86State *env, DisasContext *s,
int b)
#define tcg_gen_gvec_cmpgt(vece, dofs, aofs, bofs, oprsz, maxsz) \
tcg_gen_gvec_cmp(TCG_COND_GT, vece, dofs, aofs, bofs, oprsz, maxsz)
+typedef enum {
+ CK_CPUID_MMX = 1,
+ CK_CPUID_3DNOW,
+ CK_CPUID_SSE,
+ CK_CPUID_SSE2,
+ CK_CPUID_CLFLUSH,
+ CK_CPUID_SSE3,
+ CK_CPUID_SSSE3,
+ CK_CPUID_SSE4_1,
+ CK_CPUID_SSE4_2,
+ CK_CPUID_SSE4A,
+ CK_CPUID_AVX,
+ CK_CPUID_AVX2,
+} CkCpuidFeat;
+
+static int ck_cpuid(CPUX86State *env, DisasContext *s, CkCpuidFeat feat)
+{
+ switch (feat) {
+ case CK_CPUID_MMX:
+ return !(s->cpuid_features & CPUID_MMX)
+ || !(s->cpuid_ext2_features & CPUID_EXT2_MMX);
+ case CK_CPUID_3DNOW:
+ return !(s->cpuid_ext2_features & CPUID_EXT2_3DNOW);
+ case CK_CPUID_SSE:
+ return !(s->cpuid_features & CPUID_SSE);
+ case CK_CPUID_SSE2:
+ return !(s->cpuid_features & CPUID_SSE2);
+ case CK_CPUID_CLFLUSH:
+ return !(s->cpuid_features & CPUID_CLFLUSH);
+ case CK_CPUID_SSE3:
+ return !(s->cpuid_ext_features & CPUID_EXT_SSE3);
+ case CK_CPUID_SSSE3:
+ return !(s->cpuid_ext_features & CPUID_EXT_SSSE3);
+ case CK_CPUID_SSE4_1:
+ return !(s->cpuid_ext_features & CPUID_EXT_SSE41);
+ case CK_CPUID_SSE4_2:
+ return !(s->cpuid_ext_features & CPUID_EXT_SSE42);
+ case CK_CPUID_SSE4A:
+ return !(s->cpuid_ext3_features & CPUID_EXT3_SSE4A);
+ case CK_CPUID_AVX:
+ return !(s->cpuid_ext_features & CPUID_EXT_AVX);
+ case CK_CPUID_AVX2:
+ return !(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_AVX2);
+ default:
+ g_assert_not_reached();
+ }
+}
+
static void gen_sse_ng(CPUX86State *env, DisasContext *s, int b)
{
enum {
--
2.20.1
- [Qemu-devel] [RFC PATCH v3 03/46] target/i386: reduce scope of variable aflag, (continued)
- [Qemu-devel] [RFC PATCH v3 03/46] target/i386: reduce scope of variable aflag, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 01/46] target/i386: Push rex_r into DisasContext, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 08/46] target/i386: make variable b1 const, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 09/46] target/i386: make variable is_xmm const, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 10/46] target/i386: add vector register file alignment constraints, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 05/46] target/i386: use prefix from DisasContext, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 04/46] target/i386: use dflag from DisasContext, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 11/46] target/i386: introduce gen_(ld, st)d_env_A0, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 14/46] target/i386: introduce mnemonic aliases for several gvec operations, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 15/46] target/i386: introduce function ck_cpuid,
Jan Bobek <=
- [Qemu-devel] [RFC PATCH v3 06/46] target/i386: Simplify gen_exception arguments, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 07/46] target/i386: use pc_start from DisasContext, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 12/46] target/i386: introduce gen_sse_ng, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 13/46] target/i386: disable unused function warning temporarily, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 17/46] target/i386: introduce generic operand alias, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 16/46] target/i386: introduce instruction operand infrastructure, Jan Bobek, 2019/08/14
- [Qemu-devel] [RFC PATCH v3 21/46] target/i386: introduce modrm operand, Jan Bobek, 2019/08/14