On 8/30/23 06:35, Daniel Henrique Barboza wrote:
A build with --enable-debug and without KVM will fail as follows:

/usr/bin/ld: libqemu-riscv64-softmmu.fa.p/hw_riscv_virt.c.o: in function 
`virt_machine_init':
./qemu/build/../hw/riscv/virt.c:1465: undefined reference to 
`kvm_riscv_aia_create'

This happens because the code block with "if virt_use_kvm_aia(s)" isn't
being ignored by the debug build, resulting in an undefined reference to
a KVM only function.

Add a 'kvm_enabled()' conditional together with virt_use_kvm_aia() will
make the compiler crop the kvm_riscv_aia_create() call entirely from a
non-KVM build. Note that adding the 'kvm_enabled()' conditional inside
virt_use_kvm_aia() won't fix the build because this function would need
to be inlined multiple times to make the compiler zero out the entire
block.

While we're at it, use kvm_enabled() in all instances where
virt_use_kvm_aia() is checked to allow the compiler to elide these other
kvm-only instances as well.

Suggested-by: Richard Henderson<richard.hender...@linaro.org>
Fixes: dbdb99948e ("target/riscv: select KVM AIA in riscv virt machine")
Signed-off-by: Daniel Henrique Barboza<dbarb...@ventanamicro.com>
---
  hw/riscv/virt.c | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

Reviewed-by: Richard Henderson <richard.hender...@linaro.org>

r~

Reply via email to