diff options
| author | Philippe Mathieu-Daudé <philmd@linaro.org> | 2023-06-27 16:32:35 +0200 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2023-07-10 22:29:15 +1000 |
| commit | 4de81093f894c42bce975e52fc7b470a76046301 (patch) | |
| tree | 8a04d75bb9b98cd0624238e04194de54e076cdd3 /meson.build | |
| parent | 278c1bcef568f41e298792f9f437efd333305812 (diff) | |
target/riscv: Only build KVM guest with same wordsize as host
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>
Diffstat (limited to 'meson.build')
| -rw-r--r-- | meson.build | 6 |
1 files 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 |