On Thu, Jan 14, 2021 at 10:27:55PM -0500, Jason Baron wrote: > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index 3f7c1fc..c21927f 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -113,6 +113,15 @@ static int sync_regs(struct kvm_vcpu *vcpu); > struct kvm_x86_ops kvm_x86_ops __read_mostly; > EXPORT_SYMBOL_GPL(kvm_x86_ops); > > +#define KVM_X86_OP(func) \ > + DEFINE_STATIC_CALL_NULL(kvm_x86_##func, \ > + *(((struct kvm_x86_ops *)0)->func)); > +#define KVM_X86_OP_NULL KVM_X86_OP > +#include <asm/kvm-x86-ops.h> > +EXPORT_STATIC_CALL_GPL(kvm_x86_get_cs_db_l_bits); > +EXPORT_STATIC_CALL_GPL(kvm_x86_cache_reg); > +EXPORT_STATIC_CALL_GPL(kvm_x86_tlb_flush_current); Would something like: https://lkml.kernel.org/r/20201110103909.GD2594@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Be useful? That way modules can call the static_call() but not change it.
