Re: [PATCH 04/23] KVM: MMU: constify uses of struct kvm_mmu_role_regs

Sean Christopherson
2022-02-09T22:58:10Z

On Fri, Feb 04, 2022, Paolo Bonzini wrote:
> struct kvm_mmu_role_regs is computed just once and then accessed. Use
> const to enforce this.

It's not new enforcement, just syntatic sugar (though it's tasty sugar). All fields
in struct kvm_mmu_role_regs are const specifically to prevent such a struct from
being changed regardless of how a pointer was obtained.

struct kvm_mmu_role_regs {
const unsigned long cr0;
const unsigned long cr4;
const u64 efer;
};