diff options
Diffstat (limited to 'cbtable.c')
| -rw-r--r-- | cbtable.c | 16 |
1 files changed, 13 insertions, 3 deletions
@@ -6,6 +6,7 @@ * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx) * Copyright (C) 2006-2009 coresystems GmbH * (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH) + * Copyright (C) 2010 Carl-Daniel Hailfinger * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -207,11 +208,15 @@ int coreboot_init(void) #else start = 0x0; #endif - table_area = physmap("low megabyte", start, BYTES_TO_MAP); + table_area = physmap_try_ro("low megabyte", start, BYTES_TO_MAP - start); + if (!table_area) { + msg_perr("Failed getting access to coreboot low tables.\n"); + return -1; + } lb_table = find_lb_table(table_area, 0x00000, 0x1000); if (!lb_table) - lb_table = find_lb_table(table_area, 0xf0000, BYTES_TO_MAP); + lb_table = find_lb_table(table_area, 0xf0000 - start, BYTES_TO_MAP - start); if (lb_table) { struct lb_forward *forward = (struct lb_forward *) (((char *)lb_table) + lb_table->header_bytes); @@ -219,7 +224,12 @@ int coreboot_init(void) start = forward->forward; start &= ~(getpagesize() - 1); physunmap(table_area, BYTES_TO_MAP); - table_area = physmap("high tables", start, BYTES_TO_MAP); + table_area = physmap_try_ro("high tables", start, BYTES_TO_MAP); + if (!table_area) { + msg_perr("Failed getting access to coreboot " + "high tables.\n"); + return -1; + } lb_table = find_lb_table(table_area, 0x00000, 0x1000); } } |
