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authorBorislav Petkov <bp@suse.de>2014-01-18 12:48:15 +0100
committerMatt Fleming <matt.fleming@intel.com>2014-03-04 16:17:17 +0000
commit11cc851254b4bc3bd4430be8db2a41469303a427 (patch)
tree490cfc91f4a07ae31e9cbef87c2a64dad742e2e0 /arch/x86/Kconfig.debug
parentef6bea6ddf0e76077d0798e57b374015b23a837e (diff)
downloadlinux-11cc851254b4bc3bd4430be8db2a41469303a427.tar.gz
x86/efi: Dump the EFI page table
This is very useful for debugging issues with the recently added pagetable switching code for EFI virtual mode. Signed-off-by: Borislav Petkov <bp@suse.de> Tested-by: Toshi Kani <toshi.kani@hp.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'arch/x86/Kconfig.debug')
-rw-r--r--arch/x86/Kconfig.debug9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 321a52ccf63..61bd2ad9428 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -81,6 +81,15 @@ config X86_PTDUMP
kernel.
If in doubt, say "N"
+config EFI_PGT_DUMP
+ bool "Dump the EFI pagetable"
+ depends on EFI && X86_PTDUMP
+ ---help---
+ Enable this if you want to dump the EFI page table before
+ enabling virtual mode. This can be used to debug miscellaneous
+ issues with the mapping of the EFI runtime regions into that
+ table.
+
config DEBUG_RODATA
bool "Write protect kernel read-only data structures"
default y