[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>
---
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;