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ACPI / tables: introduce ARCH_HAS_ACPI_TABLE_UPGRADE

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We want to use the table upgrade feature in ARM64.
Introduce a new configuration option that allows that.

Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Aleksey Makarov 2016-06-20 13:56:12 +03:00 committed by Rafael J. Wysocki
parent 84b06ca319
commit 91dda51a11
2 changed files with 5 additions and 1 deletions
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1
arch/x86/Kconfig
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@ -22,6 +22,7 @@ config X86
select ANON_INODES
select ARCH_CLOCKSOURCE_DATA
select ARCH_DISCARD_MEMBLOCK
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select ARCH_HAS_DEVMEM_IS_ALLOWED

5
drivers/acpi/Kconfig
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@ -311,9 +311,12 @@ config ACPI_CUSTOM_DSDT
bool
default ACPI_CUSTOM_DSDT_FILE != ""
config ARCH_HAS_ACPI_TABLE_UPGRADE
def_bool n
config ACPI_TABLE_UPGRADE
bool "Allow upgrading ACPI tables via initrd"
depends on BLK_DEV_INITRD && X86
depends on BLK_DEV_INITRD && ARCH_HAS_ACPI_TABLE_UPGRADE
default y
help
This option provides functionality to upgrade arbitrary ACPI tables