On Tue, Feb 14, 2023 at 05:00:56PM +0800, Tianrui Zhao wrote: > > > +#define KVM_GET_CSRS _IOWR(KVMIO, 0xc5, struct kvm_csrs) > > > +#define KVM_SET_CSRS _IOW(KVMIO, 0xc6, struct kvm_csrs) > > Why does this arch need new ioctls? > We want to use this ioctl to access multiple csrs at one time. If without > this, we only access one csr. What is wrong with accessing only one csr at a time? Isn't this what other architectures do? > There is another function, can we use the KVM_GET/SET_MSRS to access our > csrs? I do not know, that's up to the KVM developers to answer. thanks, greg k-h