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([2602:ae:1544:6601:790a:6e23:4a91:70a]) by smtp.gmail.com with ESMTPSA id p14-20020a17090a2d8e00b0023af4eb597csm1234684pjd.52.2023.03.25.03.54.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 25 Mar 2023 03:54:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1679748086; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=+p35/oWwAnwR4nkxv4vCszWfRwgaL1NMREdWhFXiQdY=; b=vxPydTEmcX5Mo/R7Mqi/sYZhF2b+YhqLA42owwKs1nWDJT0OCMZKDCfofDz9VvhpLU YOVVSEUizvW8+ODKDPNZZ3IVkxrNPWvgyc2BY7v2TRxC8iI8G0KDF9itndshrbKWjZKm zTAfS3tC599GOQ8hLtgX33780WKtCcYdreflJDTzkUj6QeBivFMvDqEg3elKzadYGSyh OKZLSXsi3KhDkPXWJJKY4Zwx09ICDe7+ug2EsJaleA5WiCSoi3uxE0vLYEh9zAIA2fL6 0RNCOvkEPPgsWfh03PQegT47/wdHpZH5I7p3WzUMzanBcAcxPQLn+1+DlUFu18c/+UHq UFwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679748086; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=+p35/oWwAnwR4nkxv4vCszWfRwgaL1NMREdWhFXiQdY=; b=OXPE3AjMnUJqRqcmWnMgEKueDIqLfICLDyxPqrexgU1CJt/+sMmMkvp+XSOFJBGTIr NJM2EcBLqljlq5K64oC/L8bMclveBx1P9fNGrTZzdSuy8Jg9e+lSGJxDDDCI9aof5FvT u04vBH1rKbC2R5z+2TwjMXuSNx5JGlFyUSrQ/CVTHvRO5GQCekkd6xT0JJHumOpdIzBQ Q2ulKtv9yaUBQG4tNs+5Ahig2FiM5WMDSvDaRfl8R0o3011aeTWAyif1+RPF6m7dV05V ibsszK76LDDkIFe0wpiLeBlrAmv7X4yLxRV7vyL75JDAGtYEHbVeG1feOGXQy1Pe2lgc Fm9w== X-Gm-Message-State: AO0yUKUoLZJAxK1Tc769j6XuSEyhWBsV+1EQu3C75Z3P5adsUp56Jhhv 0A/3Qwnhjx0bApsrJbYx+n1kEpa8crdsXD5o5LA= X-Google-Smtp-Source: AKy350ZNHDDSFMh+cpvIsuDH7keH4t+m4yBlyDvCSQeRZ+t3Rf+wjE56zKIj4EbAQvJsYmCQDPHs/w== X-Received: by 2002:a17:90b:4a46:b0:22b:b832:d32 with SMTP id lb6-20020a17090b4a4600b0022bb8320d32mr6155611pjb.9.1679741685769; Sat, 25 Mar 2023 03:54:45 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, palmer@dabbelt.com, zhiwei_liu@linux.alibaba.com, fei2.wu@intel.com Subject: [PATCH v6 17/25] target/riscv: Check SUM in the correct register Date: Sat, 25 Mar 2023 03:54:21 -0700 Message-Id: <20230325105429.1142530-18-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230325105429.1142530-1-richard.henderson@linaro.org> References: <20230325105429.1142530-1-richard.henderson@linaro.org> 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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=209.85.167.182; envelope-from=richard.henderson@linaro.org; helo=mail-oi1-f182.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, RCVD_IN_MSPIKE_H2=-0.001, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1679748176989100001 Content-Type: text/plain; charset="utf-8" Table 9.5 "Effect of MPRV..." specifies that MPV=3D1 uses VS-level vsstatus.SUM instead of HS-level sstatus.SUM. For HLV/HSV instructions, the HS-level register does not apply, but the VS-level register presumably does, though this is not mentioned explicitly in the manual. However, it matches the behavior for MPV. Signed-off-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/cpu_helper.c | 12 ++++++++---- target/riscv/op_helper.c | 6 +++++- 2 files changed, 13 insertions(+), 5 deletions(-) diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index 6c42f9c6fd..0017ecbf37 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -42,11 +42,16 @@ int riscv_cpu_mmu_index(CPURISCVState *env, bool ifetch) =20 /* All priv -> mmu_idx mapping are here */ if (!ifetch) { - if (mode =3D=3D PRV_M && get_field(env->mstatus, MSTATUS_MPRV)) { + uint64_t status =3D env->mstatus; + + if (mode =3D=3D PRV_M && get_field(status, MSTATUS_MPRV)) { mode =3D get_field(env->mstatus, MSTATUS_MPP); virt =3D get_field(env->mstatus, MSTATUS_MPV); + if (virt) { + status =3D env->vsstatus; + } } - if (mode =3D=3D PRV_S && get_field(env->mstatus, MSTATUS_SUM)) { + if (mode =3D=3D PRV_S && get_field(status, MSTATUS_SUM)) { mode =3D MMUIdx_S_SUM; } } @@ -838,8 +843,7 @@ static int get_physical_address(CPURISCVState *env, hwa= ddr *physical, } widened =3D 2; } - /* status.SUM will be ignored if execute on background */ - sum =3D mmuidx_sum(mmu_idx) || use_background || is_debug; + sum =3D mmuidx_sum(mmu_idx) || is_debug; switch (vm) { case VM_1_10_SV32: levels =3D 2; ptidxbits =3D 10; ptesize =3D 4; break; diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c index db7252e09d..93d4ae8b3e 100644 --- a/target/riscv/op_helper.c +++ b/target/riscv/op_helper.c @@ -437,7 +437,11 @@ static int check_access_hlsv(CPURISCVState *env, bool = x, uintptr_t ra) riscv_raise_exception(env, RISCV_EXCP_ILLEGAL_INST, ra); } =20 - return get_field(env->hstatus, HSTATUS_SPVP) | MMU_2STAGE_BIT; + int mode =3D get_field(env->hstatus, HSTATUS_SPVP); + if (!x && mode =3D=3D PRV_S && get_field(env->vsstatus, MSTATUS_SUM)) { + mode =3D MMUIdx_S_SUM; + } + return mode | MMU_2STAGE_BIT; } =20 target_ulong helper_hyp_hlv_bu(CPURISCVState *env, target_ulong addr) --=20 2.34.1