diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/cpu/coreboot/sdram.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/x86/cpu/coreboot/sdram.c b/arch/x86/cpu/coreboot/sdram.c index 9c3ab81..2722886 100644 --- a/arch/x86/cpu/coreboot/sdram.c +++ b/arch/x86/cpu/coreboot/sdram.c @@ -22,9 +22,10 @@ DECLARE_GLOBAL_DATA_PTR; unsigned install_e820_map(unsigned max_entries, struct e820entry *entries) { + unsigned num_entries; int i; - unsigned num_entries = min((unsigned)lib_sysinfo.n_memranges, max_entries); + num_entries = min((unsigned)lib_sysinfo.n_memranges, max_entries); if (num_entries < lib_sysinfo.n_memranges) { printf("Warning: Limiting e820 map to %d entries.\n", num_entries); @@ -34,8 +35,18 @@ unsigned install_e820_map(unsigned max_entries, struct e820entry *entries) entries[i].addr = memrange->base; entries[i].size = memrange->size; - entries[i].type = memrange->type; + + /* + * coreboot has some extensions (type 6 & 16) to the E820 types. + * When we detect this, mark it as E820_RESERVED. + */ + if (memrange->type == CB_MEM_VENDOR_RSVD || + memrange->type == CB_MEM_TABLE) + entries[i].type = E820_RESERVED; + else + entries[i].type = memrange->type; } + return num_entries; } |