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[2403:580b:97e8:0:321:6fb2:58f1:a1b1]) by smtp.gmail.com with ESMTPSA id i126-20020a639d84000000b0055b44a901absm181559pgd.70.2023.07.10.05.33.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Jul 2023 05:33:32 -0700 (PDT) From: Alistair Francis X-Google-Original-From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Richard Henderson , Alistair Francis Subject: [PULL 21/54] target/riscv: Only build KVM guest with same wordsize as host Date: Mon, 10 Jul 2023 22:31:32 +1000 Message-Id: <20230710123205.2441106-22-alistair.francis@wdc.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230710123205.2441106-1-alistair.francis@wdc.com> References: <20230710123205.2441106-1-alistair.francis@wdc.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::22d; envelope-from=alistair23@gmail.com; helo=mail-oi1-x22d.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, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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 From: Philippe Mathieu-Daudé Per Anup Patel in [*]: > Currently, we only support running rv64 guest on rv64 host > and rv32 guest on rv32 host. > > In the future, we might support running rv32 guest on rv64 > host but as of now we don't see a strong push for it. Therefore, when only using the KVM accelerator it is pointless to build qemu-system-riscv32 on a rv64 host (or qemu-system-riscv64 on a rv32 host). Restrict meson to only build the correct binary, avoiding to waste ressources building unusable code. [*] https://lore.kernel.org/qemu-devel/CAAhSdy2JeRHeeoEc1XKQhPO3aDz4YKeyQsPT4S8yKJcYTA+AiQ@mail.gmail.com/ Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis Message-Id: <20230627143235.29947-3-philmd@linaro.org> Signed-off-by: Alistair Francis --- meson.build | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/meson.build b/meson.build index 657e01069b..1ed47c779d 100644 --- a/meson.build +++ b/meson.build @@ -110,8 +110,10 @@ elif cpu in ['ppc', 'ppc64'] kvm_targets = ['ppc-softmmu', 'ppc64-softmmu'] elif cpu in ['mips', 'mips64'] kvm_targets = ['mips-softmmu', 'mipsel-softmmu', 'mips64-softmmu', 'mips64el-softmmu'] -elif cpu in ['riscv32', 'riscv64'] - kvm_targets = ['riscv32-softmmu', 'riscv64-softmmu'] +elif cpu in ['riscv32'] + kvm_targets = ['riscv32-softmmu'] +elif cpu in ['riscv64'] + kvm_targets = ['riscv64-softmmu'] else kvm_targets = [] endif