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Sun, 25 Jun 2023 14:27:38 -0700 (PDT) From: Yeqi Fu To: alex.bennee@linaro.org Cc: richard.henderson@linaro.org, qemu-devel@nongnu.org, Yeqi Fu , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Aurelien Jarno , Jiaxun Yang , Aleksandar Rikalo Subject: [RFC v3 08/10] target/mips: Add support for native library calls Date: Mon, 26 Jun 2023 05:27:05 +0800 Message-Id: <20230625212707.1078951-9-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::62e; envelope-from=fufuyqqqqqq@gmail.com; helo=mail-pl1-x62e.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/mips/tcg/translate.c | 26 ++++++++++++++++++++++++++ target/mips/tcg/translate.h | 2 ++ 2 files changed, 28 insertions(+) diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index a6ca2e5a3b..15ab889dca 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -36,6 +36,7 @@ #include "qemu/qemu-print.h" #include "fpu_helper.h" #include "translate.h" +#include "native/native-defs.h" /* * Many sysemu-only helpers are not reachable for user-only. @@ -13592,6 +13593,31 @@ static void decode_opc_special(CPUMIPSState *env, DisasContext *ctx) #endif break; case OPC_SYSCALL: + uint32_t sig = (ctx->opcode) >> 6; + if (native_call_enabled() && (!ctx->native_call_status) && sig) { + ctx->native_call_status = true; + ctx->native_call_id = sig; + break; + } else if (native_call_enabled() && (ctx->native_call_status) && sig) { + TCGv arg1 = tcg_temp_new(); + TCGv arg2 = tcg_temp_new(); + TCGv arg3 = tcg_temp_new(); + + tcg_gen_mov_tl(arg1, cpu_gpr[4]); + tcg_gen_mov_tl(arg2, cpu_gpr[5]); + tcg_gen_mov_tl(arg3, cpu_gpr[6]); + + TCGv_i32 abi_map = tcg_constant_i32(sig); + TCGv_i32 func_id = tcg_constant_i32(ctx->native_call_id); + 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_gpr[2], res); + ctx->native_call_status = false; + ctx->native_call_id = 0; + break; + } generate_exception_end(ctx, EXCP_SYSCALL); break; case OPC_BREAK: diff --git a/target/mips/tcg/translate.h b/target/mips/tcg/translate.h index 69f85841d2..bc603297cc 100644 --- a/target/mips/tcg/translate.h +++ b/target/mips/tcg/translate.h @@ -49,6 +49,8 @@ typedef struct DisasContext { bool saar; bool mi; int gi; + bool native_call_status; + int native_call_id; } DisasContext; #define DISAS_STOP DISAS_TARGET_0