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[174.21.72.5]) by smtp.gmail.com with ESMTPSA id s14-20020a170902a50e00b001ddc83fda95sm1852845plq.186.2024.04.11.19.15.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 19:15:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1712888111; x=1713492911; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=CWIVZJINHW7JcPiz2/SVDLtJDtIbrdpEhoE0ho2QK1Y=; b=CyZmR6jW8ZVUK5zckccnUbJMUu+XHsKeOmGcqptK4V7ioc3jgGH453ZXXs93y8Z1Kf QBNuqY09TTeCv7AHpPTcs8MQdjXINb8NTM8z7b0grnURzWynlz4KiGAlAqPl2KaFlUe2 8F/wZNxTVrHG2ItsJbx7s6k2Tu+C8o4OVGVpTdk5hK9YjdjwdIV9H1EWP8fvPxXqMgby S5kfMegzKRhgGFM6BbnUIyb1WWYoAxAbzadSYgRUhdSmeNvwQ/0ZEdd+Zfc3IM+ZGHEA Db87fpqwCR+mus1RSa9ngXwIsPWi79suxo9DfEsTCaL++MQsGD2V0eAJa7poXPS2P7lp D8Jg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712888111; x=1713492911; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=CWIVZJINHW7JcPiz2/SVDLtJDtIbrdpEhoE0ho2QK1Y=; b=ctu8zD5UneHJlHMr44KSTg6uNHwi9fixGK7SrgqWTUmn8WBJvF3fTvZKxmpnCzy0UD oF7hdRyX9ocPxRQzmCRvlehJ4yk08AhBclW3K4w2RqFVEgRLqmGT5eZUw0uYzNP7Ru/1 Uc2Yg9M+UhK424rAivFkiHtzwzC1ibT2BlQy4SF8Rnjse4enxNokNjebjPQfc3hmUFdH yYPSvomybCOOQC6dNhPbKo49CPdGjiMdpg6NRj2m86gY7E80C18InjNoZr06Zs0gsCy3 5cMMquvv0B08ZPHiu3NQo1lHhOSPyIKhaV3Kznxg8kmR2lW1VEKjJPRfPXIo/RbpzdpM UqNQ== X-Gm-Message-State: AOJu0YyiTibrNf9LdaePbqwEeM6yiKdZo/+cZgC5A37KmZ6sXiCPDh+B aW1B4YlIQiSMIOmGqcPUd34hiXGneHobv6GcfD0343rIgu2s6HfXxTCPCnTj3Zbk865UxwTgvQ9 C X-Google-Smtp-Source: AGHT+IE2KTgHjzQ5LD5ZZYpLw6GKrMf50e4w/OAUeOhCHoZ4/hwFIOeqbQpb8HPt5M+Jelxl3QlaOw== X-Received: by 2002:a17:903:22c5:b0:1e2:aa62:2fbf with SMTP id y5-20020a17090322c500b001e2aa622fbfmr1452972plg.45.1712888111237; Thu, 11 Apr 2024 19:15:11 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: bazz@bazz1.com, mark.cave-ayland@ilande.co.uk, atar4qemu@gmail.com Subject: [PATCH] target/sparc: Use GET_ASI_CODE for ASI_KERNELTXT and ASI_USERTXT Date: Thu, 11 Apr 2024 19:15:09 -0700 Message-Id: <20240412021509.145502-1-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::631; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x631.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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1712888168642100003 Content-Type: text/plain; charset="utf-8" Reads are done with execute access. It is not clear whether writes are legal at all -- for now, leave helper_st_asi unchanged, so that we continue to raise an mmu fault. This generalizes the exiting code for ASI_KERNELTXT to be usable for ASI_USERTXT as well, by passing down the MemOpIdx to use. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2281 Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2059 Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1609 Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1166 Signed-off-by: Richard Henderson Acked-by: Mark Cave-Ayland Tested-by: M Bazz --- target/sparc/helper.h | 3 ++ target/sparc/ldst_helper.c | 65 ++++++++++++++++++++++++++------------ target/sparc/translate.c | 49 ++++++++++++++++++++++++++-- 3 files changed, 95 insertions(+), 22 deletions(-) diff --git a/target/sparc/helper.h b/target/sparc/helper.h index e55fad5b8c..b8087d0d2b 100644 --- a/target/sparc/helper.h +++ b/target/sparc/helper.h @@ -32,6 +32,9 @@ DEF_HELPER_FLAGS_3(udiv, TCG_CALL_NO_WG, i64, env, tl, tl) DEF_HELPER_FLAGS_3(sdiv, TCG_CALL_NO_WG, i64, env, tl, tl) DEF_HELPER_3(taddcctv, tl, env, tl, tl) DEF_HELPER_3(tsubcctv, tl, env, tl, tl) +#if !defined(CONFIG_USER_ONLY) && !defined(TARGET_SPARC64) +DEF_HELPER_FLAGS_3(ld_code, TCG_CALL_NO_WG, i64, env, tl, i32) +#endif #if !defined(CONFIG_USER_ONLY) || defined(TARGET_SPARC64) DEF_HELPER_FLAGS_4(ld_asi, TCG_CALL_NO_WG, i64, env, tl, int, i32) DEF_HELPER_FLAGS_5(st_asi, TCG_CALL_NO_WG, void, env, tl, i64, int, i32) diff --git a/target/sparc/ldst_helper.c b/target/sparc/ldst_helper.c index e581bb42ac..2846a86cc4 100644 --- a/target/sparc/ldst_helper.c +++ b/target/sparc/ldst_helper.c @@ -585,7 +585,6 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong= addr, #if defined(DEBUG_MXCC) || defined(DEBUG_ASI) uint32_t last_addr =3D addr; #endif - MemOpIdx oi; =20 do_check_align(env, addr, size - 1, GETPC()); switch (asi) { @@ -684,24 +683,6 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulon= g addr, case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */ case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */ break; - case ASI_KERNELTXT: /* Supervisor code access */ - oi =3D make_memop_idx(memop, cpu_mmu_index(env_cpu(env), true)); - switch (size) { - case 1: - ret =3D cpu_ldb_code_mmu(env, addr, oi, GETPC()); - break; - case 2: - ret =3D cpu_ldw_code_mmu(env, addr, oi, GETPC()); - break; - default: - case 4: - ret =3D cpu_ldl_code_mmu(env, addr, oi, GETPC()); - break; - case 8: - ret =3D cpu_ldq_code_mmu(env, addr, oi, GETPC()); - break; - } - break; case ASI_M_TXTC_TAG: /* SparcStation 5 I-cache tag */ case ASI_M_TXTC_DATA: /* SparcStation 5 I-cache data */ case ASI_M_DATAC_TAG: /* SparcStation 5 D-cache tag */ @@ -779,7 +760,6 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong= addr, case 0x4c: /* SuperSPARC MMU Breakpoint Action */ ret =3D env->mmubpaction; break; - case ASI_USERTXT: /* User code access, XXX */ default: sparc_raise_mmu_fault(cs, addr, false, false, asi, size, GETPC()); ret =3D 0; @@ -787,6 +767,8 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong= addr, =20 case ASI_USERDATA: /* User data access */ case ASI_KERNELDATA: /* Supervisor data access */ + case ASI_USERTXT: /* User code access */ + case ASI_KERNELTXT: /* Supervisor code access */ case ASI_P: /* Implicit primary context data access (v9 only?) */ case ASI_M_BYPASS: /* MMU passthrough */ case ASI_LEON_BYPASS: /* LEON MMU passthrough */ @@ -1161,6 +1143,49 @@ void helper_st_asi(CPUSPARCState *env, target_ulong = addr, uint64_t val, #endif } =20 +uint64_t helper_ld_code(CPUSPARCState *env, target_ulong addr, uint32_t oi) +{ + MemOp mop =3D get_memop(oi); + uintptr_t ra =3D GETPC(); + uint64_t ret; + + switch (mop & MO_SIZE) { + case MO_8: + ret =3D cpu_ldb_code_mmu(env, addr, oi, ra); + if (mop & MO_SIGN) { + ret =3D (int8_t)ret; + } + break; + case MO_16: + ret =3D cpu_ldw_code_mmu(env, addr, oi, ra); + if ((mop & MO_BSWAP) !=3D MO_TE) { + ret =3D bswap16(ret); + } + if (mop & MO_SIGN) { + ret =3D (int16_t)ret; + } + break; + case MO_32: + ret =3D cpu_ldl_code_mmu(env, addr, oi, ra); + if ((mop & MO_BSWAP) !=3D MO_TE) { + ret =3D bswap32(ret); + } + if (mop & MO_SIGN) { + ret =3D (int32_t)ret; + } + break; + case MO_64: + ret =3D cpu_ldq_code_mmu(env, addr, oi, ra); + if ((mop & MO_BSWAP) !=3D MO_TE) { + ret =3D bswap64(ret); + } + break; + default: + g_assert_not_reached(); + } + return ret; +} + #endif /* CONFIG_USER_ONLY */ #else /* TARGET_SPARC64 */ =20 diff --git a/target/sparc/translate.c b/target/sparc/translate.c index 319934d9bd..c9b9b047df 100644 --- a/target/sparc/translate.c +++ b/target/sparc/translate.c @@ -1117,6 +1117,7 @@ typedef enum { GET_ASI_EXCP, GET_ASI_DIRECT, GET_ASI_DTWINX, + GET_ASI_CODE, GET_ASI_BLOCK, GET_ASI_SHORT, GET_ASI_BCOPY, @@ -1159,14 +1160,22 @@ static DisasASI resolve_asi(DisasContext *dc, int a= si, MemOp memop) || (asi =3D=3D ASI_USERDATA && (dc->def->features & CPU_FEATURE_CASA))) { switch (asi) { - case ASI_USERDATA: /* User data access */ + case ASI_USERDATA: /* User data access */ mem_idx =3D MMU_USER_IDX; type =3D GET_ASI_DIRECT; break; - case ASI_KERNELDATA: /* Supervisor data access */ + case ASI_KERNELDATA: /* Supervisor data access */ mem_idx =3D MMU_KERNEL_IDX; type =3D GET_ASI_DIRECT; break; + case ASI_USERTXT: /* User text access */ + mem_idx =3D MMU_USER_IDX; + type =3D GET_ASI_CODE; + break; + case ASI_KERNELTXT: /* Supervisor text access */ + mem_idx =3D MMU_KERNEL_IDX; + type =3D GET_ASI_CODE; + break; case ASI_M_BYPASS: /* MMU passthrough */ case ASI_LEON_BYPASS: /* LEON MMU passthrough */ mem_idx =3D MMU_PHYS_IDX; @@ -1379,6 +1388,22 @@ static void gen_ld_asi(DisasContext *dc, DisasASI *d= a, TCGv dst, TCGv addr) case GET_ASI_DIRECT: tcg_gen_qemu_ld_tl(dst, addr, da->mem_idx, da->memop | MO_ALIGN); break; + + case GET_ASI_CODE: +#if !defined(CONFIG_USER_ONLY) && !defined(TARGET_SPARC64) + { + MemOpIdx oi =3D make_memop_idx(da->memop, da->mem_idx); + TCGv_i32 r_oi =3D tcg_constant_i32(oi); + TCGv_i64 t64 =3D tcg_temp_new_i64(); + + gen_helper_ld_code(t64, tcg_env, addr, r_oi); + tcg_gen_trunc_i64_tl(dst, t64); + } + break; +#else + g_assert_not_reached(); +#endif + default: { TCGv_i32 r_asi =3D tcg_constant_i32(da->asi); @@ -1791,6 +1816,26 @@ static void gen_ldda_asi(DisasContext *dc, DisasASI = *da, TCGv addr, int rd) } break; =20 + case GET_ASI_CODE: +#if !defined(CONFIG_USER_ONLY) && !defined(TARGET_SPARC64) + { + TCGv_i64 tmp =3D tcg_temp_new_i64(); + MemOpIdx oi =3D make_memop_idx(da->memop, da->mem_idx); + + gen_helper_ld_code(tmp, tcg_env, addr, tcg_constant_i32(oi)); + + /* See above. */ + if ((da->memop & MO_BSWAP) =3D=3D MO_TE) { + tcg_gen_extr_i64_tl(lo, hi, tmp); + } else { + tcg_gen_extr_i64_tl(hi, lo, tmp); + } + } + break; +#else + g_assert_not_reached(); +#endif + default: /* ??? In theory we've handled all of the ASIs that are valid for ldda, and this should raise DAE_invalid_asi. However, --=20 2.34.1