diff options
Diffstat (limited to 'lib/efi_loader/efi_memory.c')
| -rw-r--r-- | lib/efi_loader/efi_memory.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 1212772471e..11d092dc289 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -865,3 +865,30 @@ int efi_memory_init(void) return 0; } + +int efi_map_update_notify(phys_addr_t addr, phys_size_t size, + enum lmb_map_op op) +{ + u64 efi_addr; + u64 pages; + efi_status_t status; + + efi_addr = (uintptr_t)map_sysmem(addr, 0); + pages = efi_size_in_pages(size + (efi_addr & EFI_PAGE_MASK)); + efi_addr &= ~EFI_PAGE_MASK; + + status = efi_add_memory_map_pg(efi_addr, pages, + op == LMB_MAP_OP_RESERVE ? + EFI_BOOT_SERVICES_DATA : + EFI_CONVENTIONAL_MEMORY, + false); + if (status != EFI_SUCCESS) { + log_err("LMB Map notify failure %lu\n", + status & ~EFI_ERROR_MASK); + return -1; + } + unmap_sysmem((void *)(uintptr_t)efi_addr); + + return 0; +} + |