[U-Boot] [linux-sunxi] [PATCH] ARM: HYP/non-sec: Don't enable ARMV7_LPAE for old sunxi kernels

[Mark Kettenis]

> From: Jagan Teki <jagan at amarulasolutions.com>
> Date: Fri, 12 Apr 2019 12:02:06 +0530
> 
> On Fri, Mar 22, 2019 at 2:31 AM Jonathan Liu <net147 at gmail.com> wrote:
> >
> > Hi Jagan,
> >
> > On Fri., 22 Mar. 2019 at 4:05 am, Jagan Teki <jagan at amarulasolutions.com> wrote:
> >>
> >> On Tue, Mar 19, 2019 at 11:09 AM Jonathan Liu <net147 at gmail.com> wrote:
> >> >
> >> > Old sunxi kernels fail to boot with ARMV7_LPAE enabled.
> >>
> >> Any idea why? I don't have relevant stuff with to test this.
> >
> > I don't know why. It failed to boot linux-sunxi 3.4.104 kernel on A20 OLinuXino-MICRO after updating from 2018.07 to 2018.09-rc1 and would hang at "Starting kernel...".
> >
> > I bisected the issue to:
> > https://git.denx.de/?p=u-boot.git;a=commit;h=d32e86bde8a31a49cf4a9b233ad91ecdfc96ba2a
> >
> > No problems booting mainline kernel.
> 
> Can you update full details of bug on the commit message.

Technically I think the right thing to do would be disabling
ARMV7_VIRT as my understanding is that booting into HYP mode doesn't
work without LPAE support.