[PATCH 0/2] target/riscv: Only build qemu-system-riscv$$ on rv$$ host

[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.

[*] 
CAAhSdy2JeRHeeoEc1XKQhPO3aDz4YKeyQsPT4S8yKJcYTA+AiQ@mail.gmail.com/">https://lore.kernel.org/qemu-devel/CAAhSdy2JeRHeeoEc1XKQhPO3aDz4YKeyQsPT4S8yKJcYTA+AiQ@mail.gmail.com/

Based-on: <20230626232007.8933-1-philmd@linaro.org>
"target/riscv: Allow building without TCG (KVM-only so far)"
20230626232007.8933-1-philmd@linaro.org/">https://lore.kernel.org/qemu-devel/20230626232007.8933-1-philmd@linaro.org/

Philippe Mathieu-Daudé (2):
  target/riscv: Only unify 'riscv32/64' -> 'riscv' for host cpu in meson
  target/riscv: Only build KVM guest with same wordsize as host

 meson.build | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

-- 
2.38.1