diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index a386bd854b1c..64e704eefad1 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -1853,11 +1853,13 @@ void hash__setup_initial_memory_limit(phys_addr_t first_memblock_base, * non-virtualized 64-bit hash MMU systems don't have a limitation * on real mode access. * - * We also clamp it to 1G to avoid some funky things - * such as RTAS bugs etc... + * For guests on platforms before POWER9, we clamp the it limit to 1G + * to avoid some funky things such as RTAS bugs etc... */ if (!early_cpu_has_feature(CPU_FTR_HVMODE)) { - ppc64_rma_size = min_t(u64, first_memblock_size, 0x40000000); + ppc64_rma_size = first_memblock_size; + if (!early_cpu_has_feature(CPU_FTR_ARCH_300)) + ppc64_rma_size = min_t(u64, ppc64_rma_size, 0x40000000); /* Finally limit subsequent allocations */ memblock_set_current_limit(ppc64_rma_size); |