diff options
Diffstat (limited to 'target/i386/arch_memory_mapping.c')
| -rw-r--r-- | target/i386/arch_memory_mapping.c | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/target/i386/arch_memory_mapping.c b/target/i386/arch_memory_mapping.c index 88f341e1bb..826aee597b 100644 --- a/target/i386/arch_memory_mapping.c +++ b/target/i386/arch_memory_mapping.c @@ -220,7 +220,8 @@ static void walk_pdpe(MemoryMappingList *list, AddressSpace *as, /* IA-32e Paging */ static void walk_pml4e(MemoryMappingList *list, AddressSpace *as, - hwaddr pml4e_start_addr, int32_t a20_mask) + hwaddr pml4e_start_addr, int32_t a20_mask, + target_ulong start_line_addr) { hwaddr pml4e_addr, pdpe_start_addr; uint64_t pml4e; @@ -236,11 +237,34 @@ static void walk_pml4e(MemoryMappingList *list, AddressSpace *as, continue; } - line_addr = ((i & 0x1ffULL) << 39) | (0xffffULL << 48); + line_addr = start_line_addr | ((i & 0x1ffULL) << 39); pdpe_start_addr = (pml4e & PLM4_ADDR_MASK) & a20_mask; walk_pdpe(list, as, pdpe_start_addr, a20_mask, line_addr); } } + +static void walk_pml5e(MemoryMappingList *list, AddressSpace *as, + hwaddr pml5e_start_addr, int32_t a20_mask) +{ + hwaddr pml5e_addr, pml4e_start_addr; + uint64_t pml5e; + target_ulong line_addr; + int i; + + for (i = 0; i < 512; i++) { + pml5e_addr = (pml5e_start_addr + i * 8) & a20_mask; + pml5e = address_space_ldq(as, pml5e_addr, MEMTXATTRS_UNSPECIFIED, + NULL); + if (!(pml5e & PG_PRESENT_MASK)) { + /* not present */ + continue; + } + + line_addr = (0x7fULL << 57) | ((i & 0x1ffULL) << 48); + pml4e_start_addr = (pml5e & PLM4_ADDR_MASK) & a20_mask; + walk_pml4e(list, as, pml4e_start_addr, a20_mask, line_addr); + } +} #endif void x86_cpu_get_memory_mapping(CPUState *cs, MemoryMappingList *list, @@ -257,10 +281,18 @@ void x86_cpu_get_memory_mapping(CPUState *cs, MemoryMappingList *list, if (env->cr[4] & CR4_PAE_MASK) { #ifdef TARGET_X86_64 if (env->hflags & HF_LMA_MASK) { - hwaddr pml4e_addr; + if (env->cr[4] & CR4_LA57_MASK) { + hwaddr pml5e_addr; + + pml5e_addr = (env->cr[3] & PLM4_ADDR_MASK) & env->a20_mask; + walk_pml5e(list, cs->as, pml5e_addr, env->a20_mask); + } else { + hwaddr pml4e_addr; - pml4e_addr = (env->cr[3] & PLM4_ADDR_MASK) & env->a20_mask; - walk_pml4e(list, cs->as, pml4e_addr, env->a20_mask); + pml4e_addr = (env->cr[3] & PLM4_ADDR_MASK) & env->a20_mask; + walk_pml4e(list, cs->as, pml4e_addr, env->a20_mask, + 0xffffULL << 48); + } } else #endif { |