Kernel 4.7: PAGE_GUARDED and _PAGE_NO_CACHE
From: Christian Zigotzky <hidden>
Date: 2016-06-09 13:14:16
Michael, Thank you for your patch. I was able to compile the kernel but unfortunately it doesn't boot. Do you have another hint or patch for me? Thanks in advance, Christian On 09 June 2016 at 1:15 PM, Michael Ellerman wrote:
quoted hunk ↗ jump to hunk
On Thu, 2016-06-09 at 10:48 +0200, Christian Zigotzky wrote:quoted
Shall I modify the workaround? Is the workaround for lack of the device tree the problem?I don't think so. You could try this patch to try and isolate it:diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 88a5ecaa157b..ae2f2705e8a0 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h@@ -251,7 +251,7 @@ extern unsigned long ioremap_bot; * PHB_IO_BASE = ISA_IO_BASE + 64K to ISA_IO_BASE + 2G, PHB IO spaces * IOREMAP_BASE = ISA_IO_BASE + 2G to VMALLOC_START + PGTABLE_RANGE */ -#define KERN_IO_START (KERN_VIRT_START + (KERN_VIRT_SIZE >> 1)) +#define KERN_IO_START (H_KERN_VIRT_START + (H_KERN_VIRT_SIZE >> 1)) #define FULL_IO_SIZE 0x80000000ul #define ISA_IO_BASE (KERN_IO_START) #define ISA_IO_END (KERN_IO_START + 0x10000ul)cheers