Thread (9 messages) 9 messages, 2 authors, 2016-09-15

Re: [PATCH v5 1/5] kexec_file: Include the purgatory segment in the kexec image checksum.

From: Stephen Rothwell <hidden>
Date: 2016-09-15 01:43:15
Also in: kexec, lkml

Hi Thiago,
quoted hunk ↗ jump to hunk
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2a1f0ce7c59a..dcd1679f3005 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1792,6 +1792,11 @@ config SECCOMP
 
 source kernel/Kconfig.hz
 
+# x86 needs to relocate the purgatory after the checksum is calculated,
+# therefore the purgatory cannot be part of the kexec image checksum.
+config ARCH_MODIFIES_KEXEC_PURGATORY
+	bool
+
The above should probably be in arch/Kconfig (with an appropriately
changed comment) since it is used in generic code.
-- 
Cheers,
Stephen Rothwell
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