Re: [RFC PATCH V2 16/18] x86/sev: Initialize #HV doorbell and handle interrupt requests

[Tianyu Lan]

On 12/8/2022 7:47 PM, Gupta, Pankaj wrote:
> > diff --git a/arch/x86/include/asm/irqflags.h 
> > b/arch/x86/include/asm/irqflags.h
> > index 7793e52d6237..e0730d8bc0ac 100644
> > --- a/arch/x86/include/asm/irqflags.h
> > +++ b/arch/x86/include/asm/irqflags.h
> > @@ -14,6 +14,9 @@
> >   /*
> >    * Interrupt control:
> >    */
> > +#ifdef CONFIG_AMD_MEM_ENCRYPT
> > +void check_hv_pending(struct pt_regs *regs);
> > +#endif
> >   /* Declaration required for gcc < 4.9 to prevent 
> > -Werror=missing-prototypes */
> >   extern inline unsigned long native_save_fl(void);
> > @@ -35,6 +38,19 @@ extern __always_inline unsigned long 
> > native_save_fl(void)
> >       return flags;
> >   }
> > +extern inline void native_restore_fl(unsigned long flags)
>
> Don't know if want to re-introduce this again? as it was removed with 
> ab234a260b1f ("x86/pv: Rework arch_local_irq_restore() to not use popf")

Nice catch！ This should be here again. Will remove it in the next
version.

Thanks.