As the kvm api(https://docs.kernel.org/virt/kvm/api.html) reads, KVM_CREATE_PIT2 call is only valid after enabling in-kernel irqchip support via KVM_CREATE_IRQCHIP. Signed-off-by: Tengfei Yu <moehanabichan@xxxxxxxxx> --- x86/kvm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/x86/kvm.c b/x86/kvm.c index 328fa75..71ebb1e 100644 --- a/x86/kvm.c +++ b/x86/kvm.c @@ -150,10 +150,6 @@ void kvm__arch_init(struct kvm *kvm) if (ret < 0) die_perror("KVM_SET_TSS_ADDR ioctl"); - ret = ioctl(kvm->vm_fd, KVM_CREATE_PIT2, &pit_config); - if (ret < 0) - die_perror("KVM_CREATE_PIT2 ioctl"); - if (ram_size < KVM_32BIT_GAP_START) { kvm->ram_size = ram_size; kvm->ram_start = mmap_anon_or_hugetlbfs(kvm, hugetlbfs_path, ram_size); @@ -175,6 +171,10 @@ void kvm__arch_init(struct kvm *kvm) ret = ioctl(kvm->vm_fd, KVM_CREATE_IRQCHIP); if (ret < 0) die_perror("KVM_CREATE_IRQCHIP ioctl"); + + ret = ioctl(kvm->vm_fd, KVM_CREATE_PIT2, &pit_config); + if (ret < 0) + die_perror("KVM_CREATE_PIT2 ioctl"); } void kvm__arch_delete_ram(struct kvm *kvm) -- 2.39.3
