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[174.21.67.243]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7490a69f3e2sm6479842b3a.159.2025.06.22.14.35.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Jun 2025 14:35:10 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org Subject: [PATCH v2 1/3] target/arm: Fix SME vs AdvSIMD exception priority Date: Sun, 22 Jun 2025 14:35:07 -0700 Message-ID: <20250622213509.277798-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250622213509.277798-1-richard.henderson@linaro.org> References: <20250622213509.277798-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::430; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x430.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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org We failed to raise an exception when sme_excp_el == 0 and fp_excp_el == 1. Cc: qemu-stable@nongnu.org Fixes: 3d74825f4d6 ("target/arm: Add SME enablement checks") Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index ac80f572a2..bb49a2ce90 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -1494,7 +1494,8 @@ bool sme_enabled_check(DisasContext *s) * to be zero when fp_excp_el has priority. This is because we need * sme_excp_el by itself for cpregs access checks. */ - if (!s->fp_excp_el || s->sme_excp_el < s->fp_excp_el) { + if (s->sme_excp_el + && (!s->fp_excp_el || s->sme_excp_el <= s->fp_excp_el)) { bool ret = sme_access_check(s); s->fp_access_checked = (ret ? 1 : -1); return ret; From patchwork Sun Jun 22 21:35:08 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 899066 Delivered-To: patch@linaro.org Received: by 2002:adf:e506:0:b0:3a6:d909:26ce with SMTP id j6csp648948wrm; Sun, 22 Jun 2025 14:36:04 -0700 (PDT) X-Forwarded-Encrypted: i=2; AJvYcCX2q58AEo9dNRKmI801M1VNogtDcZGYKUD0zk2ZAE680nttfowjvFrXIGzpfuBxcVEwvQn1tg==@linaro.org X-Google-Smtp-Source: AGHT+IFNKw/rKAgWWJHoQKvx0VHIqRsWJNMp7XCgLqdGNO0T1+UZC8d5AaoK6TuVM8BX742XDd2N X-Received: by 2002:a05:6214:3f84:b0:6fa:c41e:cc70 with SMTP id 6a1803df08f44-6fd0a56ec2dmr207871936d6.22.1750628164669; Sun, 22 Jun 2025 14:36:04 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1750628164; cv=none; d=google.com; s=arc-20240605; b=VXO8T9HTvtImV3Gvn7br+kzRX4BAPGtTAphosiQaiaqESuw30+owb/liVaAOfYAnjH Q672OJRbj1kvO24bLC1J88vQnB7dsRIlIxmCtRu+reLAZCP+rUeBRkHYs2yMnE2HfRa/ 0aquIOo14y3kBCxUt2AD6qdEl6pVDxXrSxqZamd2jNfPM7u3IYtuCGmKepQmBD7byEeO 634ICTSGoloOYu++cb2cpsytqaAnpWsFMb9iTRL8/g7lheKkG8B17dNey2bv6JF4gZhI KXx4/woH26O9WbvVx7hzS3ik0vLATjknHFQWqRZzmxnO9T1Qmx2RRRaHhoCnkeJLenMA FRrg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=17xvLC+f5hSIzSCO1us1OyV/XIgcsWpXj5v+pXI85Z8=; fh=ZjaPNYKUQmQtR6uATRX8FLXG2zWGBgyu8P/Wz1b3nXI=; b=BD5yn1rsOPjM0ENJN2qj2am1w70RNaQ3Dtu0x3D5B2wI1G0aLzXyC7neBZc7B1DGMJ aKC8aBnoZXcvcmcbyD4jTw7vgi6F4ibvLno35dhk5I9OMxJQ02vjZ6VPa1viCOj3EdKu 6/ZSyVtDidbHWAcIjuR5L1KqxNYb8ILceAtV2y3NXANWKwpfNgsXxxksvDqNL47TqWkK U8/HUxssY38T//8PS/xxV2K7sZjRTj7WL3t9HjiOvPYjoEbcKudQ2rOFllXOluvu7npS Dc69MHCdO4sql9WRMfDPdoy5WteKPPDPVLJTqN0sXpwpReFCDrkFJ3LWRPnQRm81tTwZ v1iQ==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=ICDHXmS5; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. 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[174.21.67.243]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7490a69f3e2sm6479842b3a.159.2025.06.22.14.35.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Jun 2025 14:35:11 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org Subject: [PATCH v2 2/3] target/arm: Fix sve_access_check for SME Date: Sun, 22 Jun 2025 14:35:08 -0700 Message-ID: <20250622213509.277798-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250622213509.277798-1-richard.henderson@linaro.org> References: <20250622213509.277798-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42e; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42e.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=unavailable 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Do not assume SME implies SVE. Ensure that the non-streaming check is present along the SME path, since it is not implied by sme_*_enabled_check. Cc: qemu-stable@nongnu.org Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index bb49a2ce90..d7b0c81773 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -1387,11 +1387,8 @@ static bool fp_access_check_only(DisasContext *s) return true; } -static bool fp_access_check(DisasContext *s) +static bool nonstreaming_check(DisasContext *s) { - if (!fp_access_check_only(s)) { - return false; - } if (s->sme_trap_nonstreaming && s->is_nonstreaming) { gen_exception_insn(s, 0, EXCP_UDEF, syn_smetrap(SME_ET_Streaming, false)); @@ -1400,6 +1397,11 @@ static bool fp_access_check(DisasContext *s) return true; } +static bool fp_access_check(DisasContext *s) +{ + return fp_access_check_only(s) && nonstreaming_check(s); +} + /* * Return <0 for non-supported element sizes, with MO_16 controlled by * FEAT_FP16; return 0 for fp disabled; otherwise return >0 for success. @@ -1450,11 +1452,20 @@ static int fp_access_check_vector_hsd(DisasContext *s, bool is_q, MemOp esz) */ bool sve_access_check(DisasContext *s) { - if (s->pstate_sm || !dc_isar_feature(aa64_sve, s)) { - bool ret; + bool ret; - assert(dc_isar_feature(aa64_sme, s)); - ret = sme_sm_enabled_check(s); + switch (dc_isar_feature(aa64_sme, s)) { + case true: + if (s->pstate_sm) { + ret = sme_enabled_check(s); + } else if (!dc_isar_feature(aa64_sve, s)) { + ret = sme_sm_enabled_check(s); + } else { + break; + } + if (ret) { + ret = nonstreaming_check(s); + } s->sve_access_checked = (ret ? 1 : -1); return ret; } From patchwork Sun Jun 22 21:35:09 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 899068 Delivered-To: patch@linaro.org Received: by 2002:adf:e506:0:b0:3a6:d909:26ce with SMTP id j6csp648984wrm; Sun, 22 Jun 2025 14:36:15 -0700 (PDT) X-Forwarded-Encrypted: i=2; AJvYcCUhnDqffopZSBLfvPn5rOnWC2cgqf3z4AvFLDF1ijVC+C+afUmaJzhoYaYoPzKWOOL9hwjKRw==@linaro.org X-Google-Smtp-Source: AGHT+IHR49WMNwCoJnTl9yHb8hpwDB/ocr4fz7CNCocuIuA3Td7FUeSHI3+ORMhlp1NEE2TqIOW0 X-Received: by 2002:a05:620a:40c9:b0:7c5:95e6:ce1d with SMTP id af79cd13be357-7d3f982fb44mr1292364885a.0.1750628175419; Sun, 22 Jun 2025 14:36:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1750628175; cv=none; d=google.com; s=arc-20240605; b=kqTwUGJYWcSZTsFDL1MRtu2T1Ne25Srj6dgfRqM+SBvkFlWd3ABLOaPq/kdWjkbdbD M1bAlilkvaM8xjskGK0yMiEIbuldL81XcZNQ+W2HtE8sb9Qbmf46Gd3dK1rJQE0hX7Eb E54xvLM9veWnqNV4SzvMrvkep7CBU3RVLTc3nJAhfVDxQIF9wllgRkBPHweb34AfMsjl m2yX3z8KgfpO70aqf/6gTN6Min/6fVkbqBGFNLXwnqwGirSW19BMwxBXNeaflvpJjw3y rmpehKwh9Y1iS53JKasLZZP79MY+FNdizFcpk+3kmjcS5ostvaemP2Rx5YUrlMaqjO1d Ssww== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=BENvMcJ/CrRAcx3dIG/qU4Ltg1Ex80eRTSFUmTUQVxM=; fh=ZjaPNYKUQmQtR6uATRX8FLXG2zWGBgyu8P/Wz1b3nXI=; b=BuQinBNRG/L7sbBw8bV4ENwSd2his/Gq80CDhlUl/OQXJ08mf2tEbrGMsC9Ei2jJQI aOt5GnG86VkJ2McwFPjiDHRCn+LRtT7/oik0/QY2Ude+mu0QbRlU0A43mrKTFd50aWoj q5aVQKYuaMo+khzpgvhCUXVmXJeOaG9cRK2AgMUdjdMmjkQ9YjsSLqIMgaJuBnlzTGaS 5THHBOkM/OxVrg28TOrLWuY4RPmDA61q1KXhFZQVGAVpebylxz+kfA6DYWSTYzErSlrq tZ3UcilW/CwSy/yi2dv+zbDaOuqW+aun+Rb/hrtdk3bmjTTwqa2pD0/XR+Ve7myhgk/c R0iQ==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=snn7Z2HK; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. 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[174.21.67.243]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7490a69f3e2sm6479842b3a.159.2025.06.22.14.35.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Jun 2025 14:35:12 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org Subject: [PATCH v2 3/3] target/arm: Fix 128-bit element ZIP, UZP, TRN Date: Sun, 22 Jun 2025 14:35:09 -0700 Message-ID: <20250622213509.277798-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250622213509.277798-1-richard.henderson@linaro.org> References: <20250622213509.277798-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42e; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42e.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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org We missed the instructions UDEF when the vector size is too small. We missed marking the instructions non-streaming with SME. Cc: qemu-stable@nongnu.org Signed-off-by: Richard Henderson --- target/arm/tcg/translate-sve.c | 43 ++++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c index f3cf028cb9..588a5b006b 100644 --- a/target/arm/tcg/translate-sve.c +++ b/target/arm/tcg/translate-sve.c @@ -2352,6 +2352,23 @@ TRANS_FEAT(PUNPKHI, aa64_sve, do_perm_pred2, a, 1, gen_helper_sve_punpk_p) *** SVE Permute - Interleaving Group */ +static bool do_interleave_q(DisasContext *s, gen_helper_gvec_3 *fn, + arg_rrr_esz *a, int data) +{ + if (sve_access_check(s)) { + unsigned vsz = vec_full_reg_size(s); + if (vsz < 32) { + unallocated_encoding(s); + } else { + tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), + vec_full_reg_offset(s, a->rn), + vec_full_reg_offset(s, a->rm), + vsz, vsz, data, fn); + } + } + return true; +} + static gen_helper_gvec_3 * const zip_fns[4] = { gen_helper_sve_zip_b, gen_helper_sve_zip_h, gen_helper_sve_zip_s, gen_helper_sve_zip_d, @@ -2361,11 +2378,11 @@ TRANS_FEAT(ZIP1_z, aa64_sve, gen_gvec_ool_arg_zzz, TRANS_FEAT(ZIP2_z, aa64_sve, gen_gvec_ool_arg_zzz, zip_fns[a->esz], a, vec_full_reg_size(s) / 2) -TRANS_FEAT(ZIP1_q, aa64_sve_f64mm, gen_gvec_ool_arg_zzz, - gen_helper_sve2_zip_q, a, 0) -TRANS_FEAT(ZIP2_q, aa64_sve_f64mm, gen_gvec_ool_arg_zzz, - gen_helper_sve2_zip_q, a, - QEMU_ALIGN_DOWN(vec_full_reg_size(s), 32) / 2) +TRANS_FEAT_NONSTREAMING(ZIP1_q, aa64_sve_f64mm, do_interleave_q, + gen_helper_sve2_zip_q, a, 0) +TRANS_FEAT_NONSTREAMING(ZIP2_q, aa64_sve_f64mm, do_interleave_q, + gen_helper_sve2_zip_q, a, + QEMU_ALIGN_DOWN(vec_full_reg_size(s), 32) / 2) static gen_helper_gvec_3 * const uzp_fns[4] = { gen_helper_sve_uzp_b, gen_helper_sve_uzp_h, @@ -2377,10 +2394,10 @@ TRANS_FEAT(UZP1_z, aa64_sve, gen_gvec_ool_arg_zzz, TRANS_FEAT(UZP2_z, aa64_sve, gen_gvec_ool_arg_zzz, uzp_fns[a->esz], a, 1 << a->esz) -TRANS_FEAT(UZP1_q, aa64_sve_f64mm, gen_gvec_ool_arg_zzz, - gen_helper_sve2_uzp_q, a, 0) -TRANS_FEAT(UZP2_q, aa64_sve_f64mm, gen_gvec_ool_arg_zzz, - gen_helper_sve2_uzp_q, a, 16) +TRANS_FEAT_NONSTREAMING(UZP1_q, aa64_sve_f64mm, do_interleave_q, + gen_helper_sve2_uzp_q, a, 0) +TRANS_FEAT_NONSTREAMING(UZP2_q, aa64_sve_f64mm, do_interleave_q, + gen_helper_sve2_uzp_q, a, 16) static gen_helper_gvec_3 * const trn_fns[4] = { gen_helper_sve_trn_b, gen_helper_sve_trn_h, @@ -2392,10 +2409,10 @@ TRANS_FEAT(TRN1_z, aa64_sve, gen_gvec_ool_arg_zzz, TRANS_FEAT(TRN2_z, aa64_sve, gen_gvec_ool_arg_zzz, trn_fns[a->esz], a, 1 << a->esz) -TRANS_FEAT(TRN1_q, aa64_sve_f64mm, gen_gvec_ool_arg_zzz, - gen_helper_sve2_trn_q, a, 0) -TRANS_FEAT(TRN2_q, aa64_sve_f64mm, gen_gvec_ool_arg_zzz, - gen_helper_sve2_trn_q, a, 16) +TRANS_FEAT_NONSTREAMING(TRN1_q, aa64_sve_f64mm, do_interleave_q, + gen_helper_sve2_trn_q, a, 0) +TRANS_FEAT_NONSTREAMING(TRN2_q, aa64_sve_f64mm, do_interleave_q, + gen_helper_sve2_trn_q, a, 16) /* *** SVE Permute Vector - Predicated Group