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author | David Gibson <david@gibson.dropbear.id.au> | 2013-03-12 00:31:32 +0000 |
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committer | Alexander Graf <agraf@suse.de> | 2013-03-22 15:28:51 +0100 |
commit | 6a9801106ed90b8817128e15b187a9d5f71a54d9 (patch) | |
tree | aaecff34ed37b26817f9cd863f9196bcbc138ea9 /target-ppc/mmu-hash32.c | |
parent | 181488987671841407c52b6f958650f68b66f3f4 (diff) | |
download | hqemu-6a9801106ed90b8817128e15b187a9d5f71a54d9.zip hqemu-6a9801106ed90b8817128e15b187a9d5f71a54d9.tar.gz |
mmu-hash*: Fold pte_check*() logic into caller
With previous cleanups made, the 32-bit and 64-bit pte_check*() functions
are pretty trivial and only have one call site. This patch therefore
clarifies the overall code flow by folding those functions into their
call site.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/mmu-hash32.c')
-rw-r--r-- | target-ppc/mmu-hash32.c | 48 |
1 files changed, 22 insertions, 26 deletions
diff --git a/target-ppc/mmu-hash32.c b/target-ppc/mmu-hash32.c index 8b403fe..53e86de 100644 --- a/target-ppc/mmu-hash32.c +++ b/target-ppc/mmu-hash32.c @@ -295,31 +295,8 @@ static int ppc_hash32_direct_store(CPUPPCState *env, target_ulong sr, } } -static int pte_check_hash32(struct mmu_ctx_hash32 *ctx, target_ulong pte0, - target_ulong pte1, int rwx) -{ - int access, ret, pp; - - pp = pte1 & HPTE32_R_PP; - /* Compute access rights */ - access = ppc_hash32_pp_check(ctx->key, pp, ctx->nx); - /* Keep the matching PTE informations */ - ctx->raddr = pte1; - ctx->prot = access; - ret = ppc_hash32_check_prot(ctx->prot, rwx); - if (ret == 0) { - /* Access granted */ - LOG_MMU("PTE access granted !\n"); - } else { - /* Access right violation */ - LOG_MMU("PTE access rejected\n"); - } - - return ret; -} - -static int ppc_hash32_pte_update_flags(struct mmu_ctx_hash32 *ctx, - uint32_t *pte1p, int ret, int rwx) +static int ppc_hash32_pte_update_flags(struct mmu_ctx_hash32 *ctx, uint32_t *pte1p, + int ret, int rwx) { int store = 0; @@ -420,6 +397,8 @@ static int ppc_hash32_translate(CPUPPCState *env, struct mmu_ctx_hash32 *ctx, hwaddr pte_offset; ppc_hash_pte32_t pte; + assert((rwx == 0) || (rwx == 1) || (rwx == 2)); + /* 1. Handle real mode accesses */ if (((rwx == 2) && (msr_ir == 0)) || ((rwx != 2) && (msr_dr == 0))) { /* Translation is off */ @@ -461,7 +440,24 @@ static int ppc_hash32_translate(CPUPPCState *env, struct mmu_ctx_hash32 *ctx, /* 7. Check access permissions */ ctx->key = (((sr & SR32_KP) && (msr_pr != 0)) || ((sr & SR32_KS) && (msr_pr == 0))) ? 1 : 0; - ret = pte_check_hash32(ctx, pte.pte0, pte.pte1, rwx); + + int access, pp; + + pp = pte.pte1 & HPTE32_R_PP; + /* Compute access rights */ + access = ppc_hash32_pp_check(ctx->key, pp, ctx->nx); + /* Keep the matching PTE informations */ + ctx->raddr = pte.pte1; + ctx->prot = access; + ret = ppc_hash32_check_prot(ctx->prot, rwx); + if (ret == 0) { + /* Access granted */ + LOG_MMU("PTE access granted !\n"); + } else { + /* Access right violation */ + LOG_MMU("PTE access rejected\n"); + } + /* Update page flags */ if (ppc_hash32_pte_update_flags(ctx, &pte.pte1, ret, rwx) == 1) { ppc_hash32_store_hpte1(env, pte_offset, pte.pte1); |