From: Philippe Mathieu-Daudé <philmd@linaro.org>
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 <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230627143235.29947-3-philmd@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
meson.build | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/meson.build b/meson.build
index 657e01069b..1ed47c779d 100644
@@ -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
--
2.40.1