[v3][PATCH 7/8] book3e/kexec/kdump: redefine VIRT_PHYS_OFFSET
From: Tiejun Chen <hidden>
Date: 2013-07-09 08:03:10
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Book3e is always aligned 1GB to create TLB so we should use (KERNELBASE - MEMORY_START) as VIRT_PHYS_OFFSET to get __pa/__va properly while boot kdump. Signed-off-by: Tiejun Chen <redacted> --- arch/powerpc/include/asm/page.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 988c812..5b00081 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h@@ -112,6 +112,8 @@ extern long long virt_phys_offset; /* See Description below for VIRT_PHYS_OFFSET */ #ifdef CONFIG_RELOCATABLE_PPC32 #define VIRT_PHYS_OFFSET virt_phys_offset +#elif defined(CONFIG_PPC_BOOK3E_64) +#define VIRT_PHYS_OFFSET (KERNELBASE - MEMORY_START) #else #define VIRT_PHYS_OFFSET (KERNELBASE - PHYSICAL_START) #endif
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1.7.9.5