The HW Change-bit override (0x100) is used now for s390x. This patch allows page table entries that have set this bit.
Signed-off-by: Michael Holzheu <[email protected]> --- arch/s390x.c | 4 ++-- makedumpfile.h | 1 - 2 files changed, 2 insertions(+), 3 deletions(-) --- a/arch/s390x.c +++ b/arch/s390x.c @@ -195,10 +195,10 @@ static ulong _kl_pg_table_deref_s390x(un readmem(VADDR, table + offset, &entry, sizeof(entry)); /* * Check if the page table entry could be read and doesn't have - * any of the reserved bits set. + * the reserved bit set. * Check if the page table entry has the invalid bit set. */ - if (entry & (_PAGE_CO | _PAGE_ZERO | _PAGE_INVALID)) { + if (entry & (_PAGE_ZERO | _PAGE_INVALID)) { ERRMSG("Invalid page table entry.\n"); return 0; } --- a/makedumpfile.h +++ b/makedumpfile.h @@ -575,7 +575,6 @@ do { \ #define _SEGMENT_INDEX_SHIFT 20 /* Hardware bits in the page table entry */ -#define _PAGE_CO 0x100 /* HW Change-bit override */ #define _PAGE_ZERO 0x800 /* Bit pos 52 must conatin zero */ #define _PAGE_INVALID 0x400 /* HW invalid bit */ #define _PAGE_INDEX_SHIFT 12 _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
