x86: Add MultiProcessor (MP) table APIs
The MP table provides a way for the operating system to support
for symmetric multiprocessing as well as symmetric I/O interrupt
handling with the local APIC and I/O APIC. We provide a bunch of
APIs for U-Boot to write the floating table, configuration table
header as well as base and extended table entries.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/include/asm/tables.h b/arch/x86/include/asm/tables.h
index 8146ba3..0aa6d9b 100644
--- a/arch/x86/include/asm/tables.h
+++ b/arch/x86/include/asm/tables.h
@@ -28,6 +28,20 @@
u8 table_compute_checksum(void *v, int len);
/**
+ * table_fill_string() - Fill a string with pad in the configuration table
+ *
+ * This fills a string in the configuration table. It copies number of bytes
+ * from the source string, and if source string length is shorter than the
+ * required size to copy, pad the table string with the given pad character.
+ *
+ * @dest: where to fill a string
+ * @src: where to copy from
+ * @n: number of bytes to copy
+ * @pad: character to pad the remaining bytes
+ */
+void table_fill_string(char *dest, const char *src, size_t n, char pad);
+
+/**
* write_tables() - Write x86 configuration tables
*
* This writes x86 configuration tables, including PIRQ routing table,