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ACPI / OSL: Add support to install tables via initrd

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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>
This commit is contained in:
Lv Zheng
2016-03-02 14:16:25 +08:00
committed by Rafael J. Wysocki
parent a543132ee0
commit c85cc817e5
3 changed files with 52 additions and 1 deletions
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2
drivers/acpi/tables.c
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@@ -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;