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target-mips: apply CP0.PageMask before writing into TLB entry

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PFN0 and PFN1 have to be masked out with PageMask_Mask.

Backports commit 2d1847ec1ca47fe82f1d8122409cedffdd3925d5 from qemu
This commit is contained in:
Leon Alrae 2018-03-04 01:27:45 -05:00 committed by Lioncash
parent 7cf1a4276e
commit 4a1ec3bb80
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 3 additions and 2 deletions
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5
qemu/target/mips/op_helper.c
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@ -2008,6 +2008,7 @@ static inline uint64_t get_tlb_pfn_from_entrylo(uint64_t entrylo)
static void r4k_fill_tlb(CPUMIPSState *env, int idx)
{
r4k_tlb_t *tlb;
uint64_t mask = env->CP0_PageMask >> (TARGET_PAGE_BITS + 1);
/* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
tlb = &env->tlb->mmu.r4k.tlb[idx];
@ -2028,13 +2029,13 @@ static void r4k_fill_tlb(CPUMIPSState *env, int idx)
tlb->C0 = (env->CP0_EntryLo0 >> 3) & 0x7;
tlb->XI0 = (env->CP0_EntryLo0 >> CP0EnLo_XI) & 1;
tlb->RI0 = (env->CP0_EntryLo0 >> CP0EnLo_RI) & 1;
tlb->PFN[0] = get_tlb_pfn_from_entrylo(env->CP0_EntryLo0) << 12;
tlb->PFN[0] = (get_tlb_pfn_from_entrylo(env->CP0_EntryLo0) & ~mask) << 12;
tlb->V1 = (env->CP0_EntryLo1 & 2) != 0;
tlb->D1 = (env->CP0_EntryLo1 & 4) != 0;
tlb->C1 = (env->CP0_EntryLo1 >> 3) & 0x7;
tlb->XI1 = (env->CP0_EntryLo1 >> CP0EnLo_XI) & 1;
tlb->RI1 = (env->CP0_EntryLo1 >> CP0EnLo_RI) & 1;
tlb->PFN[1] = get_tlb_pfn_from_entrylo(env->CP0_EntryLo1) << 12;
tlb->PFN[1] = (get_tlb_pfn_from_entrylo(env->CP0_EntryLo1) & ~mask) << 12;
}
void r4k_helper_tlbinv(CPUMIPSState *env)