The highest bits of the _count field in struct page_info contain some page specific flags. However, since they are allocated from top to bottom, we need some infrastructure to get their values right on all platforms, namely a macro that defines the size of a "long" value.
Signed-off-by: Petr Tesarik <[email protected]> --- makedumpfile.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) --- a/makedumpfile.h +++ b/makedumpfile.h @@ -78,6 +78,12 @@ int get_mem_type(void); #define LSEEKED_PDATA (3) /* + * Xen page flags + */ +#define PG_shift(idx) (BITS_PER_LONG - (idx)) +#define PG_mask(x, idx) (x ## UL << PG_shift(idx)) + +/* * Memory flags */ #define MEMORY_PAGETABLE_4L (1 << 0) @@ -426,6 +432,8 @@ do { \ #define VMEMMAP_END (info->vmemmap_end) #ifdef __arm__ +#define BITS_PER_LONG 32 + #define KVBASE_MASK (0xffff) #define KVBASE (SYMBOL(_stext) & ~KVBASE_MASK) #define _SECTION_SIZE_BITS (28) @@ -443,6 +451,8 @@ do { \ #endif /* arm */ #ifdef __x86__ +#define BITS_PER_LONG 32 + #define __PAGE_OFFSET (0xc0000000) #define __VMALLOC_RESERVE (128 << 20) #define MAXMEM (-PAGE_OFFSET-__VMALLOC_RESERVE) @@ -474,6 +484,8 @@ do { \ #endif /* x86 */ #ifdef __x86_64__ +#define BITS_PER_LONG 64 + #define __PAGE_OFFSET_ORIG (0xffff810000000000) /* 2.6.26, or former */ #define __PAGE_OFFSET_2_6_27 (0xffff880000000000) /* 2.6.27, or later */ @@ -523,6 +535,8 @@ do { \ #endif /* x86_64 */ #ifdef __powerpc64__ +#define BITS_PER_LONG 64 + #define __PAGE_OFFSET (0xc000000000000000) #define KERNELBASE PAGE_OFFSET #define VMALLOCBASE (0xD000000000000000) @@ -532,6 +546,7 @@ do { \ #endif #ifdef __powerpc32__ +#define BITS_PER_LONG 32 #define __PAGE_OFFSET (0xc0000000) #define KERNELBASE PAGE_OFFSET @@ -543,6 +558,8 @@ do { \ #endif #ifdef __s390x__ +#define BITS_PER_LONG 64 + #define __PAGE_OFFSET (info->page_size - 1) #define KERNELBASE (0) #define KVBASE KERNELBASE @@ -583,6 +600,8 @@ do { \ #endif /* __s390x__ */ #ifdef __ia64__ /* ia64 */ +#define BITS_PER_LONG 64 + #define REGION_SHIFT (61) #define KERNEL_CACHED_REGION (7) _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
