linux-kernel - RE: [PATCH] ARM: add v7 LPAE multi-platform defconfig

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Message-ID: <BN3PR0301MB08676406D58D9037B5A9194CFE280@BN3PR0301MB0867.namprd03.prod.outlook.com>
Date:	Fri, 6 Nov 2015 06:03:09 +0000
From:	Huan Wang <alison.wang@...escale.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Christoffer Dall <christoffer.dall@...aro.org>,
	"shawnguo@...nel.org" <shawnguo@...nel.org>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"festevam@...il.com" <festevam@...il.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jin Jason <Jason.Jin@...escale.com>
Subject: RE: [PATCH] ARM: add v7 LPAE multi-platform defconfig

> On Wednesday 04 November 2015 03:17:06 Huan Wang wrote:
> > > On Tue, Oct 27, 2015 at 10:35:07PM +0800, Alison Wang wrote:
> > > > v7 LPAE multi-platform defconfig is based on v7 multi-platform
> > > > defconfig and adds LPAE support.
> > > >
> > > > This defconfig is verified on LS1021A which enables GIANFAR, I2C,
> > > > WATCHDOG, AUDIO, EDMA and DSPI drivers, etc.
> > > >
> > > > Signed-off-by: Alison Wang <alison.wang@...escale.com>
> > >
> > > I think this would be great if it also had:
> > >
> > > CONFIG_ARCH_VIRT=y
> > > CONFIG_VIRTUALIZATION=y
> > > CONFIG_KVM=y
> > >
> > > That would allow it to be used for KVM testing both as host and
> guest.
> > >
> > > FWIW, I just tried booting this on my TC2, but I don't get any
> > > output from there.  Is it supposed to work on this platform?  If not,
> why not?
> > >
> > [Alison Wang] One question, does TC2 support LPAE? If so, we could try
> > to find the reason and add it in this defconfig for armv7 LPAE support.
> 
> Yes, I think we should enable all platforms that we enable in the normal
> multi_v7_defconfig, if we decide to add a new one. Just remove the
> platforms that are based on Cortex-A5/A8/A9, Scorpion or PJ4 rather than
> A7/A12/A15/A17 or Krait.
> 
[Alison Wang] Thanks for your advice. I will try to prepare a new one according
to your advice.


Best Regards,
Alison Wang
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