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

[Peter Zijlstra <peterz@xxxxxxxxxxxxx>]

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!

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