Re: [PATCH v2] hypervisor/x86/xen: Unset X86_BUG_SYSRET_SS_ATTRS on Xen PV guests

From: David Vrabel
Date: Tue May 05 2015 - 13:26:09 EST


On 04/05/15 16:02, Boris Ostrovsky wrote:
>
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -1760,6 +1760,9 @@ static struct notifier_block xen_hvm_cpu_notifier = {
>
> static void __init xen_hvm_guest_init(void)
> {
> + if (xen_pv_domain())
> + return;
> +

I take Andy's point that this looks a little odd, perhaps...

static void __init xen_platform_init(void)
{
if (!xen_pv_domain())
xen_hvm_guest_init();
}

Would be a useful follow up?

I'll apply as-is though

David
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