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Groups > linux.kernel > #1660777
| From | Yisheng Xie <xieyisheng1@huawei.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] ARM/Kconfig: make VMSPLIT_3G_OPT depends on !ARM_LPAE |
| Date | 2017-06-08 08:20 +0200 |
| Message-ID | <tPYXv-yI-3@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
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. Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com> --- arch/arm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 4c1a35f..c0fcab6 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1416,6 +1416,7 @@ choice config VMSPLIT_3G bool "3G/1G user/kernel split" config VMSPLIT_3G_OPT + depends on !ARM_LPAE bool "3G/1G user/kernel split (for full 1G low memory)" config VMSPLIT_2G bool "2G/2G user/kernel split" -- 1.7.12.4
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[PATCH] ARM/Kconfig: make VMSPLIT_3G_OPT depends on !ARM_LPAE Yisheng Xie <xieyisheng1@huawei.com> - 2017-06-08 08:20 +0200 Re: [PATCH] ARM/Kconfig: make VMSPLIT_3G_OPT depends on !ARM_LPAE Nicolas Pitre <nicolas.pitre@linaro.org> - 2017-06-08 18:10 +0200 Re: [PATCH] ARM/Kconfig: make VMSPLIT_3G_OPT depends on !ARM_LPAE Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-06-08 18:20 +0200
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