[OpenWrt-Devel] [PATCH 1/7] tegra: add new target

[Christian Lamparter]

On Wednesday, March 27, 2019 3:07:58 PM CET Tomasz Maciej Nowak wrote:
> Hi Hauke,
> 
> W dniu 25.03.2019 o 23:39, Hauke Mehrtens pisze:
> > Hi Tomasz,
> > 
> > Soke small comments, this looks mostly ok.
> > 
> [snip]
> >> +# CONFIG_ARM_LPAE is not set
> > 
> > Is LPAE not supported by your SoC? This is needed for KVM support, but
> > not all CPUs support this.
> 
> Not really sure, seems it should be enabled for all ARM v7, it was disabled
> in tegra_defconfig. Enabling this shouldn't do any harm, will test this.

Hm, quick FYI: KVM on ARM needs all CPUs to be in Hypervisor Mode.
You can check this by looking in your dmesg:

if it says:
[    0.005874] CPU: All CPU(s) started in HYP mode.
Then yes: LPAE would be great.

But if it says:
[    0.005306] CPU: All CPU(s) started in SVC mode.
then you probably don't need LPAE since KVM is not an option. 

Cheers,
Christian



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