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Remove MMU hacks

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Unicorn has included some ugly hacks to provide a envirement where vaddr == paddr.
These hacks where to use the full 64 bit mappings on x86 without init the mmu
and some memory redirect for MIPS.

The UC_TLB_CPU mode defaults to vaddr == paddr, therfor these hacks aren't
required anymore.
This commit is contained in:
Takacs, Philipp
2023-02-13 15:07:40 +01:00
parent e25419bb2d
commit e96ac42b2e
17 changed files with 10 additions and 83 deletions
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1
qemu/target/i386/cpu.c
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@@ -5066,7 +5066,6 @@ static void x86_cpu_common_class_init(struct uc_struct *uc, CPUClass *oc, void *
cc->cpu_exec_enter = x86_cpu_exec_enter;
cc->cpu_exec_exit = x86_cpu_exec_exit;
cc->tcg_initialize = tcg_x86_init;
cc->tlb_fill = x86_cpu_tlb_fill;
cc->tlb_fill_cpu = x86_cpu_tlb_fill;
}

7
qemu/target/i386/excp_helper.c
View File

@@ -635,12 +635,7 @@ do_check_protect_pse36:
/* align to page_size */
pte &= PG_ADDRESS_MASK & ~(page_size - 1);
page_offset = addr & (page_size - 1);
/* HACK allow full 64 bit mapping in u64 without paging */
if (env->cr[0] & CR0_PG_MASK) {
paddr = get_hphys(cs, pte + page_offset, is_write1, &prot);
} else {
paddr = addr;
}
paddr = get_hphys(cs, pte + page_offset, is_write1, &prot);
/* Even if 4MB pages, we map only one 4KB page in the cache to
avoid filling it too fast */