The radix guest is not subject to the paravirtualized HPT VRMA limit,
so remove that from ppc64_rma_size calculation for that platform.
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
arch/powerpc/mm/pgtable-radix.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index d73816960825..6606216f1992 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -625,15 +625,12 @@ void radix__setup_initial_memory_limit(phys_addr_t
first_memblock_base,
if (!early_cpu_has_feature(CPU_FTR_HVMODE)) {
/*
- * We limit the allocation that depend on ppc64_rma_size
- * to first_memblock_size. We also clamp it to 1GB to
- * avoid some funky things such as RTAS bugs.
+ * Radix mode guests are not limited by RMA / VRMA addressing.
*
- * On radix config we really don't have a limitation
- * on real mode access. But keeping it as above works
- * well enough.
+ * We do clamp addresses to 1GB to avoid some funky things
+ * such as RTAS bugs.
*/
- ppc64_rma_size = min_t(u64, first_memblock_size, 0x40000000);
+ ppc64_rma_size = 0x40000000;
/*
* Finally limit subsequent allocations. We really don't want
* to limit the memblock allocations to rma_size. FIXME!! should
--
2.15.0
