On 5/26/23 03:25, Yong-Xuan Wang wrote:
We check the in-kernel irqchip support when using KVM acceleration.
Signed-off-by: Yong-Xuan Wang <yongxuan.wang@xxxxxxxxxx>
Reviewed-by: Jim Shu <jim.shu@xxxxxxxxxx>
---
Reviewed-by: Daniel Henrique Barboza <dbarboza@xxxxxxxxxxxxxxxx>
target/riscv/kvm.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c
index 0f932a5b96..eb469e8ca5 100644
--- a/target/riscv/kvm.c
+++ b/target/riscv/kvm.c
@@ -433,7 +433,18 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
int kvm_arch_irqchip_create(KVMState *s)
{
- return 0;
+ if (kvm_kernel_irqchip_split()) {
+ error_report("-machine kernel_irqchip=split is not supported "
+ "on RISC-V.");
+ exit(1);
+ }
+
+ /*
+ * If we can create the VAIA using the newer device control API, we
+ * let the device do this when it initializes itself, otherwise we
+ * fall back to the old API
+ */
+ return kvm_check_extension(s, KVM_CAP_DEVICE_CTRL);
}
int kvm_arch_process_async_events(CPUState *cs)
