Re: [PATCH 0/2] Remove 32-bit Xen PV guest support

[Juergen Gross]

On 15.07.19 14:32, Peter Zijlstra wrote:
> On Mon, Jul 15, 2019 at 01:37:37PM +0200, Juergen Gross wrote:
> > The long term plan has been to replace Xen PV guests by PVH. The first
> > victim of that plan are now 32-bit PV guests, as those are used only
> > rather seldom these days. Xen on x86 requires 64-bit support and with
> > Grub2 now supporting PVH officially since version 2.04 there is no
> > need to keep 32-bit PV guest support alive in the Linux kernel.
> > Additionally Meltdown mitigation is not available in the kernel running
> > as 32-bit PV guest, so dropping this mode makes sense from security
> > point of view, too.
> >
> > Juergen Gross (2):
> >    x86/xen: remove 32-bit Xen PV guest support
> >    x86/paravirt: remove 32-bit support from PARAVIRT_XXL
>
> Hooray!

Always a pleasure to cheer the community up by sending Xen patches. :-D


Juergen