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authorAlexander Egorenkov <egorenar@linux.ibm.com>2021-03-25 12:10:56 +0100
committerVasily Gorbik <gor@linux.ibm.com>2021-07-05 12:44:23 +0200
commit9f744abb4639e793689570fc9dcdf5f2f028bc9a (patch)
tree17f1bea54f04855360596fbd8f19898781ed2e5d /arch/s390/include/asm/setup.h
parents390/mcck: keep machine check interruption codes sorted (diff)
downloadlinux-9f744abb4639e793689570fc9dcdf5f2f028bc9a.tar.xz
linux-9f744abb4639e793689570fc9dcdf5f2f028bc9a.zip
s390/boot: replace magic string check with a bootdata flag
The magic string "S390EP" at offset 0x10008 indicated to the decompressed kernel that it was booted by the decompressor. Introduce a new bootdata flag instead which conveys the same information in an explicit and a cleaner way. But keep the magic string because it is a kernel ABI. Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/setup.h')
-rw-r--r--arch/s390/include/asm/setup.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index a8b75da3c1b8..3a77aa96d092 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -159,6 +159,8 @@ static inline unsigned long kaslr_offset(void)
return __kaslr_offset;
}
+extern int is_full_image;
+
static inline u32 gen_lpswe(unsigned long addr)
{
BUILD_BUG_ON(addr > 0xfff);