diff options
| author | Peter Oberparleiter <oberpar@linux.ibm.com> | 2022-09-16 15:01:36 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2022-10-26 14:47:31 +0200 |
| commit | aa127a069ef312aca02b730d5137e1778d0c3ba7 (patch) | |
| tree | 28b9c9c8662b7ecfdeecad6430e22ad49f9f9d5b /arch/s390 | |
| parent | 6ec803025cf3173a57222e4411097166bd06fa98 (diff) | |
s390/boot: add secure boot trailer
This patch enhances the kernel image adding a trailer as required for
secure boot by future firmware versions.
Cc: <stable@vger.kernel.org> # 5.2+
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/boot/vmlinux.lds.S | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/s390/boot/vmlinux.lds.S b/arch/s390/boot/vmlinux.lds.S index af5c6860e0a1..fa9d33b01b85 100644 --- a/arch/s390/boot/vmlinux.lds.S +++ b/arch/s390/boot/vmlinux.lds.S @@ -102,8 +102,17 @@ SECTIONS _compressed_start = .; *(.vmlinux.bin.compressed) _compressed_end = .; - FILL(0xff); - . = ALIGN(4096); + } + +#define SB_TRAILER_SIZE 32 + /* Trailer needed for Secure Boot */ + . += SB_TRAILER_SIZE; /* make sure .sb.trailer does not overwrite the previous section */ + . = ALIGN(4096) - SB_TRAILER_SIZE; + .sb.trailer : { + QUAD(0) + QUAD(0) + QUAD(0) + QUAD(0x000000207a49504c) } _end = .; |