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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-04-29 23:25:43 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-05-01 18:32:40 +1000 |
| commit | 50de596de8be6de75401a2190b90a822e8a1bab2 (patch) | |
| tree | a09516c1f30162e27bf2d5acd0fc48b24f787433 /arch/powerpc/mm/pgtable_64.c | |
| parent | e99833448c5fa198a120db6d7087dd17149dc273 (diff) | |
| download | linux-50de596de8be6de75401a2190b90a822e8a1bab2.tar.gz | |
powerpc/mm/hash: Add support for Power9 Hash
PowerISA 3.0 adds a parition table indexed by LPID. Parition table
allows us to specify the MMU model that will be used for guest and host
translation.
This patch adds support with SLB based hash model (UPRT = 0). What is
required with this model is to support the new hash page table entry
format and also setup partition table such that we use hash table for
address translation.
We don't have segment table support yet.
In order to make sure we don't load KVM module on Power9 (since we don't
have kvm support yet) this patch also disables KVM on Power9.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm/pgtable_64.c')
| -rw-r--r-- | arch/powerpc/mm/pgtable_64.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index 177e4893438c0b..8f3b2942fba873 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -69,6 +69,13 @@ #endif #endif +#ifdef CONFIG_PPC_BOOK3S_64 +/* + * partition table and process table for ISA 3.0 + */ +struct prtb_entry *process_tb; +struct patb_entry *partition_tb; +#endif unsigned long ioremap_bot = IOREMAP_BASE; #ifdef CONFIG_PPC_MMU_NOHASH |