Re: [PATCH] ARM/Kconfig: make VMSPLIT_3G_OPT depends on !ARM_LPAE

[Russell King - ARM Linux]

On Thu, Jun 08, 2017 at 02:05:44PM +0800, Yisheng Xie wrote:
> When both enable CONFIG_ARM_LPAE=y and CONFIG_VMSPLIT_3G_OPT=y, which
> means use PAGE_OFFSET=0xB0000000 with ARM_LPAE, the kernel will boot
> fail and stop after uncompressed:
> 
>    Starting kernel ...
> 
>    Uart base = 0x20001000
>    watchdog reg = 0x20013000
>    dtb addr = 0x80840308
>    Uncompressing Linux... done, booting the kernel.
> 
> For ARM_LPAE only support 3:1, 2:2, 1:3 split of TTBR1, which mention in:
>    http://elinux.org/images/6/6a/Elce11_marinas.pdf - p16
> 
> So we should make VMSPLIT_3G_OPT depends on !ARM_LPAE to avoid trigger
> this bug.

Yes, this is much more preferable.  Please drop it into the patch system,
thanks.

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