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Sun, 25 Jun 2023 14:27:34 -0700 (PDT) From: Yeqi Fu To: alex.bennee@linaro.org Cc: richard.henderson@linaro.org, qemu-devel@nongnu.org, Yeqi Fu , Paolo Bonzini , Eduardo Habkost Subject: [RFC v3 07/10] target/i386: Add support for native library calls Date: Mon, 26 Jun 2023 05:27:04 +0800 Message-Id: <20230625212707.1078951-8-fufuyqqqqqq@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230625212707.1078951-1-fufuyqqqqqq@gmail.com> References: <20230625212707.1078951-1-fufuyqqqqqq@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=fufuyqqqqqq@gmail.com; helo=mail-pl1-x62c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Upon encountering specialized instructions reserved for native calls, store the function id and argument types, then invoke helper. Signed-off-by: Yeqi Fu --- target/i386/tcg/translate.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 91c9c0c478..27d5d2231b 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -33,6 +33,7 @@ #include "helper-tcg.h" #include "exec/log.h" +#include "native/native-defs.h" #define PREFIX_REPZ 0x01 #define PREFIX_REPNZ 0x02 @@ -6806,6 +6807,38 @@ static bool disas_insn(DisasContext *s, CPUState *cpu) case 0x1d0 ... 0x1fe: disas_insn_new(s, cpu, b); break; + case 0x1ff: + if (native_call_enabled()) { + uint16_t sig; + sig = x86_lduw_code(env, s); + TCGv_i32 func_id = tcg_constant_i32(sig); + sig = x86_lduw_code(env, s); + TCGv_i32 abi_map = tcg_constant_i32(sig); + TCGv arg1 = tcg_temp_new(); + TCGv arg2 = tcg_temp_new(); + TCGv arg3 = tcg_temp_new(); +#ifdef TARGET_X86_64 + tcg_gen_mov_tl(arg1, cpu_regs[R_EDI]); + tcg_gen_mov_tl(arg2, cpu_regs[R_ESI]); + tcg_gen_mov_tl(arg3, cpu_regs[R_EDX]); +#else + uintptr_t ra = GETPC(); + uint32_t a1 = cpu_ldl_data_ra(env, env->regs[R_ESP] + 4, ra); + uint32_t a2 = cpu_ldl_data_ra(env, env->regs[R_ESP] + 8, ra); + uint32_t a3 = cpu_ldl_data_ra(env, env->regs[R_ESP] + 12, ra); + tcg_gen_movi_tl(arg1, a1); + tcg_gen_movi_tl(arg2, a2); + tcg_gen_movi_tl(arg3, a3); +#endif + TCGv res = tcg_temp_new(); + TCGv_i32 mmu_idx = tcg_constant_i32(MMU_USER_IDX); + gen_helper_native_call(res, cpu_env, arg1, arg2, arg3, + abi_map, func_id, mmu_idx); + + tcg_gen_mov_tl(cpu_regs[R_EAX], res); + break; + } + break; default: goto unknown_op; }