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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-12-25 13:39:19 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-12-25 13:39:12 +0100 |
| commit | e37f50e1811d68170e4d58a087cf634b2bf1cef9 (patch) | |
| tree | 49296845bd5e651ca7ec70f1dedca6db8deedb66 /arch/s390/kernel/head31.S | |
| parent | b3b59d3339c907b1dec3ce19f62b2a7f120d142d (diff) | |
| download | talos-obmc-linux-e37f50e1811d68170e4d58a087cf634b2bf1cef9.tar.gz talos-obmc-linux-e37f50e1811d68170e4d58a087cf634b2bf1cef9.zip | |
[S390] Add processor type march=z10 and a processor type safety check.
This patch adds the code generation option for IBM System z10 and
adds a check in head[31,64].S to prevents the execution of a kernel
compiled for a new processor type on an old machine.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head31.S')
| -rw-r--r-- | arch/s390/kernel/head31.S | 27 |
1 files changed, 3 insertions, 24 deletions
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S index a816e2de32b9..7add8454773b 100644 --- a/arch/s390/kernel/head31.S +++ b/arch/s390/kernel/head31.S @@ -10,34 +10,13 @@ * */ -# -# startup-code at 0x10000, running in absolute addressing mode -# this is called either by the ipl loader or directly by PSW restart -# or linload or SALIPL -# - .org 0x10000 -startup:basr %r13,0 # get base -.LPG0: l %r13,0f-.LPG0(%r13) - b 0(%r13) -0: .long startup_continue - -# -# params at 10400 (setup.h) -# - .org PARMAREA - .long 0,0 # IPL_DEVICE - .long 0,0 # INITRD_START - .long 0,0 # INITRD_SIZE - - .org COMMAND_LINE - .byte "root=/dev/ram0 ro" - .byte 0 - .org 0x11000 startup_continue: basr %r13,0 # get base -.LPG1: mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0) +.LPG1: + + mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0) lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area # move IPL device to lowcore |
