From ff94c219e95843fe24710c16a66efdfb6ca536a9 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Sat, 27 Feb 2016 22:58:02 -0800 Subject: x86: Support writing configuration tables in high area For those secondary bootloaders like SeaBIOS who want to live in the F segment, which conflicts the configuration table address, now we allow write_tables() to write the configuration tables in high area (malloc'ed memory). Signed-off-by: Bin Meng Reviewed-by: Simon Glass --- arch/x86/lib/tables.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/lib/tables.c b/arch/x86/lib/tables.c index 9f0d928521..eccef8ab30 100644 --- a/arch/x86/lib/tables.c +++ b/arch/x86/lib/tables.c @@ -67,11 +67,22 @@ void write_tables(void) { u32 rom_table_start = ROM_TABLE_ADDR; u32 rom_table_end; + u32 high_table, table_size; int i; for (i = 0; i < ARRAY_SIZE(table_write_funcs); i++) { rom_table_end = table_write_funcs[i](rom_table_start); rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN); + + table_size = rom_table_end - rom_table_start; + high_table = (u32)memalign(ROM_TABLE_ALIGN, table_size); + if (high_table) { + memset((void *)high_table, 0, table_size); + table_write_funcs[i](high_table); + } else { + printf("%d: no memory for configuration tables\n", i); + } + rom_table_start = rom_table_end; } } -- cgit