Re: [Xen-devel] [PATCH][tip] x86/paravirt: Make the virt_spin_lock_key setup after jump_label_init()

[Borislav Petkov <bp@xxxxxxx>]

On Fri, Oct 27, 2017 at 07:25:04PM +0200, Juergen Gross wrote:
> >> This is assuming CPU 0 is the boot cpu. I think you want 
> >> boot_cpu_data.cpu_index here or whatever is used on xen to identify the 
> >> BSP reliably. 
> > 
> > It seems both PV and PVHVM call xen_init_lock_cpu(0) so 0 here is
> > Linux's idea of CPU id, not Xen's.
> > 
> > In case Xen's idea is needed xen_vcpu_id mapping should be used. But I
> > don't think it's the case here.
> > 
> 
> Correct.

If it is Linux's idea of the BSP, then you need to check against
boot_cpu_data.cpu_index.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 
(AG Nürnberg)
-- 

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel