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X-Received-From: 2607:f8b0:4864:20::b44 Subject: [Qemu-devel] [RFC PATCH v4 15/75] target/i386: introduce function check_cpuid X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jan Bobek , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Introduce a helper function to take care of instruction CPUID checks. Signed-off-by: Jan Bobek --- target/i386/translate.c | 62 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/target/i386/translate.c b/target/i386/translate.c index 467ecf15ba..3e54443d99 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -4516,6 +4516,68 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b) #define gen_gvec_cmp(dofs, aofs, bofs, oprsz, maxsz, vece, cond) \ tcg_gen_gvec_cmp(cond, vece, dofs, aofs, bofs, oprsz, maxsz) +typedef enum { + CHECK_CPUID_MMX = 1, + CHECK_CPUID_3DNOW, + CHECK_CPUID_SSE, + CHECK_CPUID_SSE2, + CHECK_CPUID_CLFLUSH, + CHECK_CPUID_SSE3, + CHECK_CPUID_SSSE3, + CHECK_CPUID_SSE4_1, + CHECK_CPUID_SSE4_2, + CHECK_CPUID_SSE4A, + CHECK_CPUID_AES, + CHECK_CPUID_PCLMULQDQ, + CHECK_CPUID_AVX, + CHECK_CPUID_AES_AVX, + CHECK_CPUID_PCLMULQDQ_AVX, + CHECK_CPUID_AVX2, +} CheckCpuidFeat; + +static bool check_cpuid(CPUX86State *env, DisasContext *s, CheckCpuidFeat feat) +{ + switch (feat) { + case CHECK_CPUID_MMX: + return (s->cpuid_features & CPUID_MMX) + && (s->cpuid_ext2_features & CPUID_EXT2_MMX); + case CHECK_CPUID_3DNOW: + return s->cpuid_ext2_features & CPUID_EXT2_3DNOW; + case CHECK_CPUID_SSE: + return s->cpuid_features & CPUID_SSE; + case CHECK_CPUID_SSE2: + return s->cpuid_features & CPUID_SSE2; + case CHECK_CPUID_CLFLUSH: + return s->cpuid_features & CPUID_CLFLUSH; + case CHECK_CPUID_SSE3: + return s->cpuid_ext_features & CPUID_EXT_SSE3; + case CHECK_CPUID_SSSE3: + return s->cpuid_ext_features & CPUID_EXT_SSSE3; + case CHECK_CPUID_SSE4_1: + return s->cpuid_ext_features & CPUID_EXT_SSE41; + case CHECK_CPUID_SSE4_2: + return s->cpuid_ext_features & CPUID_EXT_SSE42; + case CHECK_CPUID_SSE4A: + return s->cpuid_ext3_features & CPUID_EXT3_SSE4A; + case CHECK_CPUID_AES: + return s->cpuid_ext_features & CPUID_EXT_AES; + case CHECK_CPUID_PCLMULQDQ: + return s->cpuid_ext_features & CPUID_EXT_PCLMULQDQ; + case CHECK_CPUID_AVX: + return s->cpuid_ext_features & CPUID_EXT_AVX; + case CHECK_CPUID_AES_AVX: + return (s->cpuid_ext_features & CPUID_EXT_AES) + && (s->cpuid_ext_features & CPUID_EXT_AVX); + case CHECK_CPUID_PCLMULQDQ_AVX: + return (s->cpuid_ext_features & CPUID_EXT_PCLMULQDQ) + && (s->cpuid_ext_features & CPUID_EXT_AVX); + case CHECK_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