diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2019-02-15 18:00:28 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-02-26 09:21:25 +1100 |
| commit | 3367c62f522bda6254b5760eab1ee94523a24ab2 (patch) | |
| tree | 8565ca642e621d91556763a365d3efcb89b5f6ae /target/ppc/mmu-book3s-v3.c | |
| parent | 79825f4d583a327c347db504f44bbb7470b130e8 (diff) | |
target/ppc: Support for POWER9 native hash
(Might need more patch splitting)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190215170029.15641-12-clg@kaod.org>
[dwg: Hack to fix compile with some earlier include tweaks of mine]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/mmu-book3s-v3.c')
| -rw-r--r-- | target/ppc/mmu-book3s-v3.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/target/ppc/mmu-book3s-v3.c b/target/ppc/mmu-book3s-v3.c index a174e7efc5..32b8c166b5 100644 --- a/target/ppc/mmu-book3s-v3.c +++ b/target/ppc/mmu-book3s-v3.c @@ -41,3 +41,21 @@ hwaddr ppc64_v3_get_phys_page_debug(PowerPCCPU *cpu, vaddr eaddr) return ppc_hash64_get_phys_page_debug(cpu, eaddr); } } + +bool ppc64_v3_get_pate(PowerPCCPU *cpu, target_ulong lpid, ppc_v3_pate_t *entry) +{ + uint64_t patb = cpu->env.spr[SPR_PTCR] & PTCR_PATB; + uint64_t pats = cpu->env.spr[SPR_PTCR] & PTCR_PATS; + + /* Calculate number of entries */ + pats = 1ull << (pats + 12 - 4); + if (pats <= lpid) { + return false; + } + + /* Grab entry */ + patb += 16 * lpid; + entry->dw0 = ldq_phys(CPU(cpu)->as, patb); + entry->dw1 = ldq_phys(CPU(cpu)->as, patb + 8); + return true; +} |