kernel.git/arch/s390/kernel/traps.c, branch linux-3.7.y

s390/traps: move call to print_modules() out of show_regs()

2012-09-26T13:45:27Z

Same as 0fa0e2f0 "x86: Move call to print_modules() out of show_regs()". Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/exceptions: switch to relative exception table entries

2012-09-26T13:45:10Z

This is the s390 port of 70627654 "x86, extable: Switch to relative exception table entries". Reduces the size of our exception tables by 50% on 64 bit builds. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: add support for transactional memory

2012-09-26T13:45:02Z

Allow user-space processes to use transactional execution (TX). If the TX facility is available user space programs can use transactions for fine-grained serialization based on the data objects that are referenced during a transaction. This is useful for lockless data structures and speculative compiler optimizations. Signed-off-by: Martin Schwidefsky

s390: make use of user_mode() macro where possible

2012-07-30T09:03:12Z

We use the user_mode() helper already at several places but also have the open coded variant at other places. Convert the code to always use the helper function. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/comments: unify copyright messages and remove file names

2012-07-20T09:15:04Z

Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: Heiko Carstens

Disintegrate asm/system.h for S390

2012-03-28T17:30:02Z

Disintegrate asm/system.h for S390. Signed-off-by: David Howells cc: linux-s390@vger.kernel.org

[S390] stack dump: fix indentation in output

2012-03-11T15:59:29Z

The first line of a stack dump has a wrong (no) indentation. Just fix this after more than 10 years. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] kernel: Add z/VM LGR detection

2012-03-11T15:59:29Z

Currently the following mechanisms are available to move active Linux on System z instances between machines: * z/VM 6.2 SSI (Single System Image) * Suspend/resume For moving Linux instances in this patch the term LGR (Linux Guest Relocation) is used. Because such an operation is critical, it should be detectable from Linux. With this patch for both, a live system and a kernel dump, the information about LGRs is accessible. To identify a guest, stsi and stfle data is used. A new function lgr_info_log() compares the current data (lgr_info_cur) with the last recorded one (lgr_info_last). In case the two data sets differ, lgr_info_cur is logged to the "lgr" s390dbf. The following trigger points call lgr_info_log(): * panic * die * kdump * LGR timer * PSW restart * QDIO recovery * resume This patch also changes the s390dbf hex_ascii view. Now only printable ASCII characters are shown. Reviewed-by: Heiko Carstens Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky

[S390] Enable exception traces by default

2011-12-27T10:27:14Z

Enable exception traces by default so that early user space breakage (e.g. broken code in initrd) can be easily indentified. If not needed afterwards it can be disabled by writing '0' in one of these two files: /proc/sys/kernel/userprocess_debug /proc/sys/debug/exception-trace Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] cleanup trap handling

2011-12-27T10:27:12Z

Move the program interruption code and the translation exception identifier to the pt_regs structure as 'int_code' and 'int_parm_long' and make the first level interrupt handler in entry[64].S store the two values. That makes it possible to drop 'prot_addr' and 'trap_no' from the thread_struct and to reduce the number of arguments to a lot of functions. Finally un-inline do_trap. Overall this saves 5812 bytes in the .text section of the 64 bit kernel. Signed-off-by: Martin Schwidefsky