* Required for kernel 4.17
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@xxxxxxxxxxxxx>
---
arch/ppc64.c | 5 ++++-
makedumpfile.h | 1 +
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/ppc64.c b/arch/ppc64.c
index 8bdbcc5..8b6f7d5 100644
--- a/arch/ppc64.c
+++ b/arch/ppc64.c
@@ -248,7 +248,10 @@ ppc64_vmalloc_init(void)
if (info->kernel_version >= KERNEL_VERSION(4, 12, 0)) {
info->l2_index_size = PMD_INDEX_SIZE_L4_64K_4_12;
- info->l3_index_size = PUD_INDEX_SIZE_L4_64K_4_12;
+ if (info->kernel_version >= KERNEL_VERSION(4, 17, 0))
+ info->l3_index_size = PUD_INDEX_SIZE_L4_64K_4_17;
+ else
+ info->l3_index_size = PUD_INDEX_SIZE_L4_64K_4_12;
info->l4_index_size = PGD_INDEX_SIZE_L4_64K_4_12;
} else {
info->l2_index_size = PMD_INDEX_SIZE_L4_64K_4_6;
diff --git a/makedumpfile.h b/makedumpfile.h
index 121eab2..4960e43 100644
--- a/makedumpfile.h
+++ b/makedumpfile.h
@@ -703,6 +703,7 @@ unsigned long get_kvbase_arm64(void);
#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
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