Message ID | 20210825165634.32935-4-philipp.tomsich@vrull.eu |
---|---|
State | New |
Headers | show
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Wed, 25 Aug 2021 09:56:39 -0700 (PDT) From: Philipp Tomsich <philipp.tomsich@vrull.eu> To: qemu-devel@nongnu.org Subject: [PATCH v5 03/14] target/riscv: slli.uw is only a valid encoding if shamt first in 64 bits Date: Wed, 25 Aug 2021 18:56:23 +0200 Message-Id: <20210825165634.32935-4-philipp.tomsich@vrull.eu> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210825165634.32935-1-philipp.tomsich@vrull.eu> References: <20210825165634.32935-1-philipp.tomsich@vrull.eu> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::12a; envelope-from=philipp.tomsich@vrull.eu; helo=mail-lf1-x12a.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-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: 2.1.23 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: Richard Henderson <richard.henderson@linaro.org>, Kito Cheng <kito.cheng@sifive.com>, Alistair Francis <alistair.francis@wdc.com>, Philipp Tomsich <philipp.tomsich@vrull.eu> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> |
Series |
target/riscv: Update QEmu for Zb[abcs] 1.0.0
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expand
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diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc index 3cdd70a2b9..dcc7b6893d 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -430,6 +430,15 @@ static bool trans_slli_uw(DisasContext *ctx, arg_slli_uw *a) REQUIRE_64BIT(ctx); REQUIRE_ZBA(ctx); + /* + * The shamt field is only 6 bits for RV64 (with the 7th bit + * remaining reserved for RV128). If the reserved bit is set + * on RV64, the encoding is illegal. + */ + if (a->shamt >= TARGET_LONG_BITS) { + return false; + } + TCGv source1 = tcg_temp_new(); gen_get_gpr(source1, a->rs1);