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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id f18sm6567309pgv.84.2020.08.06.03.48.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Aug 2020 03:48:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=MeZ3DbVQFubD9Ck0Xx/O6GBTXdFjHoV45D2FONbf3aI=; b=VCVbI+kFwqbNUL8dAllKLrzgxA9nxxBloX+RSu4VyUg3OVI1XsHNmrJ5xPdtTJ6DTb HOMsM6grbh3t17wmT8j3pffN7p1RW2RhzTyNtAiuNxy6MzxJXK27IQgFPF+WlirbMahH C3C/TdfIk9i6A9IPTsJr6xQICgrTw25GD0bDu38aas06voBy+qx2LlNbre6H1DFNPpGZ XBzxH0WFpJLBtt99INVOX1/YNbyth+sRxjsakw57Hz+oCx/qOwkJtzHxZwGhwh86Olgj hCWJfJkE1BwlCLojDhQZ5I7tcISu5yds23cwYUZ5uwuvYLUXBFY9sN9ZIM5mjoOStqFb CBkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=MeZ3DbVQFubD9Ck0Xx/O6GBTXdFjHoV45D2FONbf3aI=; b=phUkyGKG7NfL9hDlIfiZqRXaB+d8mHmMmy4ODCy1VojAEUJ48eyel1f9N/GIdTCL8S e+lYtEwhgoJCNNlmIyobZpSYvts0nJ7GNKVKjZwpnEdr/YfK7tW8DDkIIMGwjnTZKxai 8PlmMhfGlyZukpvjCSjM74R2IOyB2QTT3NCRHSKFlluogexVp2t9dXWiPEgeCmQ5QCW2 Rq7LwqvSr9McRcIv5vciQYYKlUyJ4lu4mHBzT45Chy+9qkIoRhlQQJD3c++r0oEXUYmf Si0fa7yeA28pBP21eRZSxMC+zy8BdPUaqC/q5qFsj9Nv6Q/I40KMJfgI1gE4f6UptVtb NBUw== X-Gm-Message-State: AOAM532GDoE0QThoN+/qcfMZD5Pq0tKJ2A3MWNhvkEyRacTGp28YA9fX QfQGG1e0UWLG30++9B0wt8GigX/p2Xg= X-Google-Smtp-Source: ABdhPJwa9PY61jq6BwvIjLneO1wLxVNhO27SA5lO3dvk0fASrfWYsVLiLQX0Z1+8bVyTpnH8o55vnw== X-Received: by 2002:a62:e704:: with SMTP id s4mr8107606pfh.177.1596710895992; Thu, 06 Aug 2020 03:48:15 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v3 22/71] target/riscv: rvv-1.0: fix address index overflow bug of indexed load/store insns Date: Thu, 6 Aug 2020 18:46:19 +0800 Message-Id: <20200806104709.13235-23-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200806104709.13235-1-frank.chang@sifive.com> References: <20200806104709.13235-1-frank.chang@sifive.com> 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=2607:f8b0:4864:20::42c; envelope-from=frank.chang@sifive.com; helo=mail-pf1-x42c.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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, URIBL_BLOCKED=0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Frank Chang , Alistair Francis , Palmer Dabbelt , Sagar Karandikar , Bastian Koppelmann Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Frank Chang Replace ETYPE from signed int to unsigned int to prevent index overflow issue, which would lead to wrong index address. Signed-off-by: Frank Chang --- target/riscv/vector_helper.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 9ba60dd7018..1ba4f720922 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -364,10 +364,10 @@ static target_ulong NAME(target_ulong base, = \ return (base + *((ETYPE *)vs2 + H(idx))); \ } =20 -GEN_VEXT_GET_INDEX_ADDR(idx_b, int8_t, H1) -GEN_VEXT_GET_INDEX_ADDR(idx_h, int16_t, H2) -GEN_VEXT_GET_INDEX_ADDR(idx_w, int32_t, H4) -GEN_VEXT_GET_INDEX_ADDR(idx_d, int64_t, H8) +GEN_VEXT_GET_INDEX_ADDR(idx_b, uint8_t, H1) +GEN_VEXT_GET_INDEX_ADDR(idx_h, uint16_t, H2) +GEN_VEXT_GET_INDEX_ADDR(idx_w, uint32_t, H4) +GEN_VEXT_GET_INDEX_ADDR(idx_d, uint64_t, H8) =20 static inline void vext_ldst_index(void *vd, void *v0, target_ulong base, --=20 2.17.1