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authorKees Cook <keescook@chromium.org>2016-06-13 15:10:02 -0700
committerIngo Molnar <mingo@kernel.org>2016-06-26 12:32:03 +0200
commit65fe935dd2387a4faf15314c73f5e6d31ef0217e (patch)
tree55e7f3f9bdb8fa0f99577d6c18c7c1485ce39dc8 /kernel/power
parent8d950d2fb23b696d393020486ab6a350bcb2c582 (diff)
downloadop-kernel-dev-65fe935dd2387a4faf15314c73f5e6d31ef0217e.zip
op-kernel-dev-65fe935dd2387a4faf15314c73f5e6d31ef0217e.tar.gz
x86/KASLR, x86/power: Remove x86 hibernation restrictions
With the following fix: 70595b479ce1 ("x86/power/64: Fix crash whan the hibernation code passes control to the image kernel") ... there is no longer a problem with hibernation resuming a KASLR-booted kernel image, so remove the restriction. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Baoquan He <bhe@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Len Brown <len.brown@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Linux PM list <linux-pm@vger.kernel.org> Cc: Logan Gunthorpe <logang@deltatee.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yinghai Lu <yinghai@kernel.org> Cc: linux-doc@vger.kernel.org Link: http://lkml.kernel.org/r/20160613221002.GA29719@www.outflux.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/power')
-rw-r--r--kernel/power/hibernate.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index fca9254..9021387 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -1154,11 +1154,6 @@ static int __init nohibernate_setup(char *str)
return 1;
}
-static int __init kaslr_nohibernate_setup(char *str)
-{
- return nohibernate_setup(str);
-}
-
static int __init page_poison_nohibernate_setup(char *str)
{
#ifdef CONFIG_PAGE_POISONING_ZERO
@@ -1182,5 +1177,4 @@ __setup("hibernate=", hibernate_setup);
__setup("resumewait", resumewait_setup);
__setup("resumedelay=", resumedelay_setup);
__setup("nohibernate", nohibernate_setup);
-__setup("kaslr", kaslr_nohibernate_setup);
__setup("page_poison=", page_poison_nohibernate_setup);
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