| Message ID | 20230526062509.31682-4-yongxuan.wang@sifive.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add RISC-V KVM AIA Support | expand |
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@sifive.com> > Reviewed-by: Jim Shu <jim.shu@sifive.com> > --- Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> > 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)
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)