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-rw-r--r--kernel/power/Kconfig14
1 files changed, 13 insertions, 1 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index b99f61b82685..396c7873e804 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -29,7 +29,7 @@ config PM_DEBUG
config SOFTWARE_SUSPEND
bool "Software Suspend"
- depends on EXPERIMENTAL && PM && SWAP && ((X86 && SMP) || ((FVR || PPC32 || X86) && !SMP))
+ depends on PM && SWAP && (X86 || ((FVR || PPC32) && !SMP))
---help---
Enable the possibility of suspending the machine.
It doesn't need APM.
@@ -73,6 +73,18 @@ config PM_STD_PARTITION
suspended image to. It will simply pick the first available swap
device.
+config SWSUSP_ENCRYPT
+ bool "Encrypt suspend image"
+ depends on SOFTWARE_SUSPEND && CRYPTO=y && (CRYPTO_AES=y || CRYPTO_AES_586=y || CRYPTO_AES_X86_64=y)
+ default ""
+ ---help---
+ To prevent data gathering from swap after resume you can encrypt
+ the suspend image with a temporary key that is deleted on
+ resume.
+
+ Note that the temporary key is stored unencrypted on disk while the
+ system is suspended.
+
config SUSPEND_SMP
bool
depends on HOTPLUG_CPU && X86 && PM
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