Re: [Crash-utility] [PATCH] book3s/ppc64: Increase the VA range

Since kernel commit c2b4d8b7417a ("powerpc/mm/hash64: Increase the VA range"), the max virtual (effective) address value has been increased to 4PB. Update page table index values accordingly. Signed-off-by: Hari Bathini <hbathini(a)linux.ibm.com&gt;

--- defs.h | 1 + ppc64.c | 5 ++++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/defs.h b/defs.h index 6e6f6be..e6e3850 100644 --- a/defs.h +++ b/defs.h @@ -3977,6 +3977,7 @@ struct efi_memory_desc_t { #define PMD_INDEX_SIZE_L4_64K_4_12 10 #define PUD_INDEX_SIZE_L4_64K_4_12 7 #define PGD_INDEX_SIZE_L4_64K_4_12 8 +#define PUD_INDEX_SIZE_L4_64K_4_17 10 #define PTE_INDEX_SIZE_RADIX_64K 5 #define PMD_INDEX_SIZE_RADIX_64K 9 #define PUD_INDEX_SIZE_RADIX_64K 9 diff --git a/ppc64.c b/ppc64.c index 0dd8a2a..f5d0dac 100644 --- a/ppc64.c +++ b/ppc64.c @@ -451,7 +451,10 @@ ppc64_init(int when) if (THIS_KERNEL_VERSION >= LINUX(4,12,0)) { m->l2_index_size = PMD_INDEX_SIZE_L4_64K_4_12; - m->l3_index_size = PUD_INDEX_SIZE_L4_64K_4_12; + if (THIS_KERNEL_VERSION >= LINUX(4,17,0)) + m->l3_index_size = PUD_INDEX_SIZE_L4_64K_4_17; + else + m->l3_index_size = PUD_INDEX_SIZE_L4_64K_4_12; m->l4_index_size = PGD_INDEX_SIZE_L4_64K_4_12; } else { m->l2_index_size = PMD_INDEX_SIZE_L4_64K_4_6;