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authorLinus Torvalds <torvalds@linux-foundation.org>2018-10-23 11:14:47 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-23 11:14:47 +0100
commite2b623fbe6a34bce1332584212ae101ebc2508f5 (patch)
treeeb07421d683c90cbed7326cdcc778cea9a08d48d /arch/s390/boot/head.S
parent70408a9987d1ffac006e21b965f0c30dd22b0af2 (diff)
parentf822ad2c2c03af85a531c5174136b6d5b1abc566 (diff)
Merge tag 's390-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky: - Improved access control for the zcrypt driver, multiple device nodes can now be created with different access control lists - Extend the pkey API to provide random protected keys, this is useful for encrypted swap device with ephemeral protected keys - Add support for virtually mapped kernel stacks - Rework the early boot code, this moves the memory detection into the boot code that runs prior to decompression. - Add KASAN support - Bug fixes and cleanups * tag 's390-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (83 commits) s390/pkey: move pckmo subfunction available checks away from module init s390/kasan: support preemptible kernel build s390/pkey: Load pkey kernel module automatically s390/perf: Return error when debug_register fails s390/sthyi: Fix machine name validity indication s390/zcrypt: fix broken zcrypt_send_cprb in-kernel api function s390/vmalloc: fix VMALLOC_START calculation s390/mem_detect: add missing include s390/dumpstack: print psw mask and address again s390/crypto: Enhance paes cipher to accept variable length key material s390/pkey: Introduce new API for transforming key blobs s390/pkey: Introduce new API for random protected key verification s390/pkey: Add sysfs attributes to emit secure key blobs s390/pkey: Add sysfs attributes to emit protected key blobs s390/pkey: Define protected key blob format s390/pkey: Introduce new API for random protected key generation s390/zcrypt: add ap_adapter_mask sysfs attribute s390/zcrypt: provide apfs failure code on type 86 error reply s390/zcrypt: zcrypt device driver cleanup s390/kasan: add support for mem= kernel parameter ...
Diffstat (limited to 'arch/s390/boot/head.S')
-rw-r--r--arch/s390/boot/head.S12
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S
index f721913b73f1..ce2cbbc41742 100644
--- a/arch/s390/boot/head.S
+++ b/arch/s390/boot/head.S
@@ -60,6 +60,9 @@ __HEAD
.long 0x02000690,0x60000050
.long 0x020006e0,0x20000050
+ .org 0x1a0
+ .quad 0,iplstart
+
.org 0x200
#
@@ -308,16 +311,11 @@ ENTRY(startup_kdump)
spt 6f-.LPG0(%r13)
mvc __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13)
l %r15,.Lstack-.LPG0(%r13)
- ahi %r15,-STACK_FRAME_OVERHEAD
brasl %r14,verify_facilities
-#ifdef CONFIG_KERNEL_UNCOMPRESSED
- jg startup_continue
-#else
- jg startup_decompressor
-#endif
+ brasl %r14,startup_kernel
.Lstack:
- .long 0x8000 + (1<<(PAGE_SHIFT+THREAD_SIZE_ORDER))
+ .long 0x8000 + (1<<(PAGE_SHIFT+BOOT_STACK_ORDER)) - STACK_FRAME_OVERHEAD
.align 8
6: .long 0x7fffffff,0xffffffff