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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2014-02-20 18:52:38 +0100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:07:03 +0100 |
| commit | c1385933804bb432a53d7a49836250d61b6e48bd (patch) | |
| tree | 8185fe22e8c143dd29307c47393004e7a63ed544 /target-ppc/mmu-hash64.c | |
| parent | 3f94170be35e3d15d63498e9f0beeee6775be47d (diff) | |
| download | qemu-c1385933804bb432a53d7a49836250d61b6e48bd.tar.gz | |
target-ppc: Update ppc_hash64_store_hpte to support updating in-kernel htab
This support updating htab managed by the hypervisor. Currently we don't have
any user for this feature. This actually bring the store_hpte interface
in-line with the load_hpte one. We may want to use this when we want to
emulate henter hcall in qemu for HV kvm.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[ folded fix for the "warn_unused_result" build break in
kvmppc_hash64_write_pte(), Greg Kurz <gkurz@linux.vnet.ibm.com> ]
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/mmu-hash64.c')
| -rw-r--r-- | target-ppc/mmu-hash64.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/target-ppc/mmu-hash64.c b/target-ppc/mmu-hash64.c index 8dd5d22fa9..f2af4fbaa7 100644 --- a/target-ppc/mmu-hash64.c +++ b/target-ppc/mmu-hash64.c @@ -603,3 +603,23 @@ hwaddr ppc_hash64_get_phys_page_debug(CPUPPCState *env, target_ulong addr) return ppc_hash64_pte_raddr(slb, pte, addr) & TARGET_PAGE_MASK; } + +void ppc_hash64_store_hpte(CPUPPCState *env, + target_ulong pte_index, + target_ulong pte0, target_ulong pte1) +{ + CPUState *cs = ENV_GET_CPU(env); + + if (kvmppc_kern_htab) { + return kvmppc_hash64_write_pte(env, pte_index, pte0, pte1); + } + + pte_index *= HASH_PTE_SIZE_64; + if (env->external_htab) { + stq_p(env->external_htab + pte_index, pte0); + stq_p(env->external_htab + pte_index + HASH_PTE_SIZE_64/2, pte1); + } else { + stq_phys(cs->as, env->htab_base + pte_index, pte0); + stq_phys(cs->as, env->htab_base + pte_index + HASH_PTE_SIZE_64/2, pte1); + } +} |