ACPI / OSL: Add support to install tables via initrd

This patch adds support to install tables from initrd.

If a table in the initrd wasn't used by the override mechanism,
the table would be installed after initializing all RSDT/XSDT
tables.

Link: https://lkml.org/lkml/2014/2/28/368
Reported-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 6c0f0794aa82..57c0a4525dba 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -32,6 +32,7 @@
 #include <linux/errno.h>
 #include <linux/acpi.h>
 #include <linux/bootmem.h>
+#include "internal.h"
 
 #define ACPI_MAX_TABLES         128
 
@@ -456,6 +457,7 @@ int __init acpi_table_init(void)
         status = acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0);
         if (ACPI_FAILURE(status))
                 return -EINVAL;
+        acpi_initrd_initialize_tables();
 
         check_multiple_madt();
         return 0;