x86: Make table address selectable

Some firmwares might have another window for generated tables.

So, introduce two configuration options to select start address and
maximum length for the generated tables.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5c8dc822efbcf81031d1482edff3b8afe10af2ee..c26710b484c1b3454032ea86c98d31b8eed6fb17 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -542,6 +542,19 @@ config VGA_BIOS_ADDR
          address of 0xfff90000 indicates that the image will be put at offset
          0x90000 from the beginning of a 1MB flash device.
 
+config ROM_TABLE_ADDR
+       hex
+       default 0xf0000
+       help
+         All x86 tables happen to like the address range from 0x0f0000
+         to 0x100000. We use 0xf0000 as the starting address to store
+         those tables, including PIRQ routing table, Multi-Processor
+         table and ACPI table.
+
+config ROM_TABLE_SIZE
+       hex
+       default 0x10000
+
 menu "System tables"
        depends on !EFI && !SYS_COREBOOT
 

diff --git a/arch/x86/include/asm/tables.h b/arch/x86/include/asm/tables.h
index 9e8208ba2b7f2620b6270e53f56fb7386cce3b39..c784a2aeec78e4a7664b365b4470afc933e4988f 100644 (file)
--- a/arch/x86/include/asm/tables.h
+++ b/arch/x86/include/asm/tables.h
@@ -9,13 +9,8 @@
 
 #include <tables_csum.h>
 
-/*
- * All x86 tables happen to like the address range from 0xf0000 to 0x100000.
- * We use 0xf0000 as the starting address to store those tables, including
- * PIRQ routing table, Multi-Processor table and ACPI table.
- */
-#define ROM_TABLE_ADDR 0xf0000
-#define ROM_TABLE_END  0xfffff
+#define ROM_TABLE_ADDR CONFIG_ROM_TABLE_ADDR
+#define ROM_TABLE_END  (CONFIG_ROM_TABLE_ADDR + CONFIG_ROM_TABLE_SIZE - 1)
 
 #define ROM_TABLE_ALIGN        1024