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target/riscv: Support setting external interrupt by KVM

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When KVM is enabled, set the S-mode external interrupt through
kvm_riscv_set_irq function.

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Mingwang Li <limingwang@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Message-id: 20220112081329.1835-8-jiangyifei@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Yifei Jiang 2022-01-12 16:13:23 +08:00 • committed by Alistair Francis
parent ad40be2708
commit 2b650fbbcc
4 changed files with 28 additions and 1 deletions
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17
target/riscv/kvm.c
View file

@ -385,6 +385,23 @@ void kvm_riscv_reset_vcpu(RISCVCPU *cpu)
env->satp = 0;
}
void kvm_riscv_set_irq(RISCVCPU *cpu, int irq, int level)
{
int ret;
unsigned virq = level ? KVM_INTERRUPT_SET : KVM_INTERRUPT_UNSET;
if (irq != IRQ_S_EXT) {
perror("kvm riscv set irq != IRQ_S_EXT\n");
abort();
}
ret = kvm_vcpu_ioctl(CPU(cpu), KVM_INTERRUPT, &virq);
if (ret < 0) {
perror("Set irq failed");
abort();
}
}
bool kvm_arch_cpu_check_are_resettable(void)
{
return true;