diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ppc/spapr.c | 1 | ||||
| -rw-r--r-- | hw/ppc/spapr_hcall.c | 50 |
2 files changed, 32 insertions, 19 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 8ac4d8a53b..94cf520e7b 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -686,6 +686,7 @@ static void spapr_reset_htab(sPAPREnvironment *spapr) if (shift > 0) { /* Kernel handles htab, we don't need to allocate one */ spapr->htab_shift = shift; + kvmppc_kern_htab = true; } else { if (!spapr->htab) { /* Allocate an htab if we don't yet have one */ diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index d19e3fcaf0..7493302ee0 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -61,8 +61,9 @@ static target_ulong h_enter(PowerPCCPU *cpu, sPAPREnvironment *spapr, target_ulong ptel = args[3]; target_ulong page_shift = 12; target_ulong raddr; - target_ulong i; + target_ulong index; hwaddr hpte; + uint64_t token; /* only handle 4k and 16M pages for now */ if (pteh & HPTE64_V_LARGE) { @@ -105,30 +106,37 @@ static target_ulong h_enter(PowerPCCPU *cpu, sPAPREnvironment *spapr, if (!valid_pte_index(env, pte_index)) { return H_PARAMETER; } + + index = 0; + hpte = pte_index * HASH_PTE_SIZE_64; if (likely((flags & H_EXACT) == 0)) { pte_index &= ~7ULL; - hpte = pte_index * HASH_PTE_SIZE_64; - for (i = 0; ; ++i) { - if (i == 8) { + token = ppc_hash64_start_access(cpu, pte_index); + do { + if (index == 8) { + ppc_hash64_stop_access(token); return H_PTEG_FULL; } - if ((ppc_hash64_load_hpte0(env, hpte) & HPTE64_V_VALID) == 0) { + if ((ppc_hash64_load_hpte0(env, token, index) & HPTE64_V_VALID) == 0) { break; } - hpte += HASH_PTE_SIZE_64; - } + } while (index++); + ppc_hash64_stop_access(token); } else { - i = 0; - hpte = pte_index * HASH_PTE_SIZE_64; - if (ppc_hash64_load_hpte0(env, hpte) & HPTE64_V_VALID) { + token = ppc_hash64_start_access(cpu, pte_index); + if (ppc_hash64_load_hpte0(env, token, 0) & HPTE64_V_VALID) { + ppc_hash64_stop_access(token); return H_PTEG_FULL; } + ppc_hash64_stop_access(token); } + hpte += index * HASH_PTE_SIZE_64; + ppc_hash64_store_hpte1(env, hpte, ptel); /* eieio(); FIXME: need some sort of barrier for smp? */ ppc_hash64_store_hpte0(env, hpte, pteh | HPTE64_V_HPTE_DIRTY); - args[0] = pte_index + i; + args[0] = pte_index + index; return H_SUCCESS; } @@ -145,16 +153,17 @@ static RemoveResult remove_hpte(CPUPPCState *env, target_ulong ptex, target_ulong *vp, target_ulong *rp) { hwaddr hpte; + uint64_t token; target_ulong v, r, rb; if (!valid_pte_index(env, ptex)) { return REMOVE_PARM; } - hpte = ptex * HASH_PTE_SIZE_64; - - v = ppc_hash64_load_hpte0(env, hpte); - r = ppc_hash64_load_hpte1(env, hpte); + token = ppc_hash64_start_access(ppc_env_get_cpu(env), ptex); + v = ppc_hash64_load_hpte0(env, token, 0); + r = ppc_hash64_load_hpte1(env, token, 0); + ppc_hash64_stop_access(token); if ((v & HPTE64_V_VALID) == 0 || ((flags & H_AVPN) && (v & ~0x7fULL) != avpn) || @@ -163,6 +172,7 @@ static RemoveResult remove_hpte(CPUPPCState *env, target_ulong ptex, } *vp = v; *rp = r; + hpte = ptex * HASH_PTE_SIZE_64; ppc_hash64_store_hpte0(env, hpte, HPTE64_V_HPTE_DIRTY); rb = compute_tlbie_rb(v, r, ptex); ppc_tlb_invalidate_one(env, rb); @@ -271,16 +281,17 @@ static target_ulong h_protect(PowerPCCPU *cpu, sPAPREnvironment *spapr, target_ulong pte_index = args[1]; target_ulong avpn = args[2]; hwaddr hpte; + uint64_t token; target_ulong v, r, rb; if (!valid_pte_index(env, pte_index)) { return H_PARAMETER; } - hpte = pte_index * HASH_PTE_SIZE_64; - - v = ppc_hash64_load_hpte0(env, hpte); - r = ppc_hash64_load_hpte1(env, hpte); + token = ppc_hash64_start_access(cpu, pte_index); + v = ppc_hash64_load_hpte0(env, token, 0); + r = ppc_hash64_load_hpte1(env, token, 0); + ppc_hash64_stop_access(token); if ((v & HPTE64_V_VALID) == 0 || ((flags & H_AVPN) && (v & ~0x7fULL) != avpn)) { @@ -293,6 +304,7 @@ static target_ulong h_protect(PowerPCCPU *cpu, sPAPREnvironment *spapr, r |= (flags << 48) & HPTE64_R_KEY_HI; r |= flags & (HPTE64_R_PP | HPTE64_R_N | HPTE64_R_KEY_LO); rb = compute_tlbie_rb(v, r, pte_index); + hpte = pte_index * HASH_PTE_SIZE_64; ppc_hash64_store_hpte0(env, hpte, (v & ~HPTE64_V_VALID) | HPTE64_V_HPTE_DIRTY); ppc_tlb_invalidate_one(env, rb); ppc_hash64_store_hpte1(env, hpte, r); |