| 50,34 → 50,62 |
|---|
| size_t hardcoded_unmapped_kdata_size = 0; |
| |
| uintptr_t last_frame = 0; |
| uintptr_t end_frame = 0; |
| |
| static void init_e820_memory(pfn_t minconf) |
| { |
| unsigned int i; |
| pfn_t start, conf; |
| size_t size; |
| |
| for (i = 0; i < e820counter; i++) { |
| uint64_t base = e820table[i].base_address; |
| uint64_t size = e820table[i].size; |
| |
| #ifdef __32_BITS__ |
| |
| /* Ignore physical memory above 4 GB */ |
| if ((base >> 32) != 0) |
| continue; |
| |
| /* Clip regions above 4 GB */ |
| if (((base + size) >> 32) != 0) |
| size = 0xffffffff - base; |
| |
| #endif |
| pfn_t pfn; |
| count_t count; |
| |
| if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) { |
| start = ADDR2PFN(ALIGN_UP(e820table[i].base_address, FRAME_SIZE)); |
| size = SIZE2FRAMES(ALIGN_DOWN(e820table[i].size, FRAME_SIZE)); |
| /* To be safe, make available zone possibly smaller */ |
| pfn = ADDR2PFN(ALIGN_UP(base, FRAME_SIZE)); |
| count = SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)); |
| |
| if ((minconf < start) || (minconf >= start + size)) |
| conf = start; |
| pfn_t conf; |
| if ((minconf < pfn) || (minconf >= pfn + count)) |
| conf = pfn; |
| else |
| conf = minconf; |
| |
| zone_create(start, size, conf, 0); |
| zone_create(pfn, count, conf, ZONE_AVAILABLE); |
| |
| if (last_frame < ALIGN_UP(e820table[i].base_address + |
| e820table[i].size, FRAME_SIZE)) |
| last_frame = |
| ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE); |
| // XXX this has to be removed |
| if (last_frame < ALIGN_UP(base + size, FRAME_SIZE)) |
| last_frame = ALIGN_UP(base + size, FRAME_SIZE); |
| } |
| |
| if (e820table[i].type == MEMMAP_MEMORY_RESERVED) { |
| /* To be safe, make reserved zone possibly larger */ |
| pfn = ADDR2PFN(ALIGN_DOWN(base, FRAME_SIZE)); |
| count = SIZE2FRAMES(ALIGN_UP(size, FRAME_SIZE)); |
| |
| zone_create(pfn, count, 0, ZONE_RESERVED); |
| } |
| |
| if (e820table[i].type == MEMMAP_MEMORY_ACPI) { |
| /* To be safe, make firmware zone possibly larger */ |
| pfn = ADDR2PFN(ALIGN_DOWN(base, (uintptr_t) FRAME_SIZE)); |
| count = SIZE2FRAMES(ALIGN_UP(size, (uintptr_t) FRAME_SIZE)); |
| |
| zone_create(pfn, count, 0, ZONE_FIRMWARE); |
| } |
| } |
| |
| end_frame = last_frame; |
| } |
| |
| static char *e820names[] = { |