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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1687728485299100007 Content-Type: text/plain; charset="utf-8" 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" =20 #include "exec/log.h" +#include "native/native-defs.h" =20 #define PREFIX_REPZ 0x01 #define PREFIX_REPNZ 0x02 @@ -6806,6 +6807,38 @@ static bool disas_insn(DisasContext *s, CPUState *cp= u) case 0x1d0 ... 0x1fe: disas_insn_new(s, cpu, b); break; + case 0x1ff: + if (native_call_enabled()) { + uint16_t sig; + sig =3D x86_lduw_code(env, s); + TCGv_i32 func_id =3D tcg_constant_i32(sig); + sig =3D x86_lduw_code(env, s); + TCGv_i32 abi_map =3D tcg_constant_i32(sig); + TCGv arg1 =3D tcg_temp_new(); + TCGv arg2 =3D tcg_temp_new(); + TCGv arg3 =3D 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 =3D GETPC(); + uint32_t a1 =3D cpu_ldl_data_ra(env, env->regs[R_ESP] + 4, ra); + uint32_t a2 =3D cpu_ldl_data_ra(env, env->regs[R_ESP] + 8, ra); + uint32_t a3 =3D 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 =3D tcg_temp_new(); + TCGv_i32 mmu_idx =3D 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; } --=20 2.34.1