Messages in this thread | | | From | Brian Gerst <> | Date | Thu, 2 Jul 2020 10:48:48 -0400 | Subject | Re: [PATCH v2 0/4] Remove 32-bit Xen PV guest support |
| |
On Wed, Jul 1, 2020 at 7:07 AM Juergen Gross <jgross@suse.com> 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.
One thing that you missed is removing VDSO_NOTE_NONEGSEG_BIT from vdso32/note.S. With that removed there is no difference from the 64-bit version.
Otherwise this series looks good to me. -- Brian Gerst
| |