diff options
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/Kconfig | 2 | ||||
| -rw-r--r-- | arch/um/kernel/physmem.c | 20 |
2 files changed, 11 insertions, 11 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig index 6b9938919f0b..10c15b8853ae 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -12,6 +12,8 @@ config UML select HAVE_UID16 select HAVE_FUTEX_CMPXCHG if FUTEX select HAVE_DEBUG_KMEMLEAK + select HAVE_MEMBLOCK + select NO_BOOTMEM select GENERIC_IRQ_SHOW select GENERIC_CPU_DEVICES select GENERIC_CLOCKEVENTS diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c index 0eaec0e24767..296a91a04598 100644 --- a/arch/um/kernel/physmem.c +++ b/arch/um/kernel/physmem.c @@ -5,6 +5,7 @@ #include <linux/module.h> #include <linux/bootmem.h> +#include <linux/memblock.h> #include <linux/mm.h> #include <linux/pfn.h> #include <asm/page.h> @@ -80,23 +81,18 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end, unsigned long len, unsigned long long highmem) { unsigned long reserve = reserve_end - start; - unsigned long pfn = PFN_UP(__pa(reserve_end)); - unsigned long delta = (len - reserve) >> PAGE_SHIFT; - unsigned long offset, bootmap_size; - long map_size; + long map_size = len - reserve; int err; - offset = reserve_end - start; - map_size = len - offset; if(map_size <= 0) { os_warn("Too few physical memory! Needed=%lu, given=%lu\n", - offset, len); + reserve, len); exit(1); } physmem_fd = create_mem_file(len + highmem); - err = os_map_memory((void *) reserve_end, physmem_fd, offset, + err = os_map_memory((void *) reserve_end, physmem_fd, reserve, map_size, 1, 1, 1); if (err < 0) { os_warn("setup_physmem - mapping %ld bytes of memory at 0x%p " @@ -113,9 +109,11 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end, os_write_file(physmem_fd, __syscall_stub_start, PAGE_SIZE); os_fsync_file(physmem_fd); - bootmap_size = init_bootmem(pfn, pfn + delta); - free_bootmem(__pa(reserve_end) + bootmap_size, - len - bootmap_size - reserve); + memblock_add(__pa(start), len + highmem); + memblock_reserve(__pa(start), reserve); + + min_low_pfn = PFN_UP(__pa(reserve_end)); + max_low_pfn = min_low_pfn + (map_size >> PAGE_SHIFT); } int phys_mapping(unsigned long phys, unsigned long long *offset_out) |