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9fe901d124
linux/arch/powerpc/kernel
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Mike Kravetz 9fe901d124 [PATCH] powerpc: Workaround for pSeries RTAS bug 
A bug in the RTAS services incorrectly interprets some bits in the CR
when called from the OS.  Specifically, bits in CR4.  The result could
be a firmware crash that also takes down the partition.  A firmware
fix is in the works.  We have seen this situation when performing DLPAR
operations.  As a temporary workaround, clear the CR in enter_rtas().
Note that enter_rtas() will not set any bits in CR4 before calling RTAS.

Also note that the 32 bit version of enter_rtas() should have the same
work around even though the chances of hitting the bug are much smaller
due to the lack of DLPAR on 32 bit kernels.  However, my assembly skills
are a bit rusty and the 32 bit code doesn't seem to follow the conventions
for where things should be saved.  In addition, I don't have a system
to test 32 bit kernels.  Help creating and at least touch testing the
same workaround for 32 bit would be appreciated.

Signed-off-by: Mike Kravetz <kravetz@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-28 16:45:33 +11:00
..
vdso32 [PATCH] powerpc: Add some missing .gitignore's 2006-01-11 15:35:35 +11:00
vdso64 [PATCH] powerpc: vdso 64bits gettimeofday bug 2006-02-28 16:25:54 +11:00
align.c [PATCH] powerpc: merge align.c 2005-11-18 14:39:23 +11:00
asm-offsets.c Merge ../linux-2.6 2006-03-09 14:32:05 +11:00
binfmt_elf32.c ppc64: merge binfmt_elf32.c 2005-10-13 13:40:54 +10:00
btext.c [PATCH] powerpc: Remove device_node addrs/n_addr 2006-01-09 14:53:55 +11:00
cpu_setup_6xx.S powerpc: Move cpu_setup_6xx.S and temp.c over to arch/powerpc 2006-03-27 19:15:26 +11:00
cpu_setup_power4.S [PATCH] powerpc: Cleanup LOADADDR etc. asm macros 2006-01-13 21:16:23 +11:00
cputable.c Merge ../linux-2.6 2006-03-09 14:32:05 +11:00
crash_dump.c powerpc: Fix compile error when CONFIG_PROC_VMCORE is not defined 2006-01-11 15:30:07 +11:00
crash.c [PATCH] powerpc: Trivial fix to set the proper timeout value for kdump 2006-02-24 11:36:21 +11:00
dma_64.c [PATCH] powerpc: IBMEBUS bus support 2006-01-09 14:49:06 +11:00
entry_32.S powerpc: Unify the 32 and 64 bit idle loops 2006-03-27 15:03:03 +11:00
entry_64.S [PATCH] powerpc: Workaround for pSeries RTAS bug 2006-03-28 16:45:33 +11:00
firmware.c [PATCH] powerpc: Rename and export ppc64_firmware_features 2006-03-28 16:45:20 +11:00
fpu.S powerpc/64: Fix bug in setting floating-point exception mode 2006-02-07 13:55:30 +11:00
head_4xx.S powerpc: Rename asm offset TRAP to _TRAP for 32-bit 2005-10-28 22:45:25 +10:00
head_8xx.S [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
head_32.S [PATCH] powerpc: fix altivec_unavailable_exception Oopses 2006-02-24 11:36:23 +11:00
head_44x.S [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
head_64.S [PATCH] powerpc: Allow non zero boot cpuids 2006-03-27 14:48:48 +11:00
head_booke.h [PATCH] powerpc: Fix Kernel FP unavail exception for BookE 2006-02-10 16:51:50 +11:00
head_fsl_booke.S [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
ibmebus.c [PATCH] powerpc: IBMEBUS bus support 2006-01-09 14:49:06 +11:00
idle_6xx.S powerpc: Fix goof in 6xx and POWER4 idle power-save functions 2006-03-28 09:28:14 +11:00
idle_power4.S powerpc: Fix goof in 6xx and POWER4 idle power-save functions 2006-03-28 09:28:14 +11:00
idle.c powerpc: Unify the 32 and 64 bit idle loops 2006-03-27 15:03:03 +11:00
init_task.c powerpc: make process.c suitable for both 32-bit and 64-bit 2005-10-10 22:29:05 +10:00
iomap.c [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
iommu.c [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
irq.c [PATCH] more for_each_cpu() conversions 2006-03-23 07:38:17 -08:00
kprobes.c [PATCH] kprobes: fix broken fault handling for powerpc64 2006-03-26 08:57:04 -08:00
l2cr_6xx.S powerpc: Move l2cr.S over to arch/powerpc 2006-03-27 15:22:28 +11:00
legacy_serial.c [PATCH] powerpc: legacy_serial loop cleanup 2006-03-27 14:48:54 +11:00
lparcfg.c [PATCH] powerpc: Fix OOPS in lparcfg on G5 2006-02-20 10:44:34 +11:00
lparmap.c [PATCH] powerpc: Fix iSeries bug in VMALLOCBASE/VMALLOC_START consolidation 2006-01-09 15:06:06 +11:00
machine_kexec_32.c [PATCH] powerpc: Merge kexec 2006-01-09 14:48:52 +11:00
machine_kexec_64.c [PATCH] powerpc: Only calculate htab_size in one place for kexec 2006-02-24 11:36:18 +11:00
machine_kexec.c [PATCH] powerpc: remove remaining crash_notes variable from machine_kexec.c 2006-01-11 14:48:02 +11:00
Makefile powerpc: Move perfmon_fsl_booke.c over to arch/powerpc 2006-03-27 20:09:04 +11:00
misc_32.S [PATCH] powerpc: Cleanup LOADADDR etc. asm macros 2006-01-13 21:16:23 +11:00
misc_64.S [PATCH] powerpc: Cleanup LOADADDR etc. asm macros 2006-01-13 21:16:23 +11:00
module_32.c powerpc: Move module.c over to arch/powerpc 2006-03-27 19:28:58 +11:00
module_64.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
nvram_64.c [PATCH] powerpc: fix various sparse warnings 2006-03-27 14:48:08 +11:00
of_device.c [PATCH] powerpc: tidy-up of_register_driver()/driver_register() return values 2006-03-23 14:40:54 +11:00
paca.c [PATCH] powerpc: Allow non zero boot cpuids 2006-03-27 14:48:48 +11:00
pci_32.c powerpc/32: Restore previous version of 32-bit PCI code 2006-01-15 22:05:47 +11:00
pci_64.c [PATCH] powerpc: properly configure DDR/P5IOC children devs 2006-03-16 16:55:07 +11:00
pci_direct_iommu.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
pci_dn.c powerpc: Move most remaining ppc64 files over to arch/powerpc 2005-11-14 17:30:17 +11:00
pci_iommu.c [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
perfmon_fsl_booke.c powerpc: Move perfmon_fsl_booke.c over to arch/powerpc 2006-03-27 20:09:04 +11:00
pmc.c [PATCH] powerpc: G4+ oprofile support 2006-01-09 15:06:03 +11:00
ppc32.h powerpc: move include/asm-ppc64/ppc32.h to arch/powerpc/kernel 2005-11-03 16:03:28 +11:00
ppc_ksyms.c Merge ../linux-2.6 2006-03-17 12:01:19 +11:00
proc_ppc64.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
process.c [PATCH] powerpc: export validate_sp for oprofile calltrace 2006-03-28 16:19:52 +11:00
prom_init.c [PATCH] powerpc: return to OF via trap, not exit 2006-03-27 14:48:36 +11:00
prom_parse.c [PATCH] powerpc: add refcounting to setup_peg2 and of_get_pci_address 2006-02-07 21:32:45 +11:00
prom.c [PATCH] powerpc: Allow non zero boot cpuids 2006-03-27 14:48:48 +11:00
ptrace32.c [PATCH] use ptrace_get_task_struct in various places 2006-01-08 20:13:51 -08:00
ptrace-common.h [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
ptrace.c powerpc: Fix various syscall/signal/swapcontext bugs 2006-03-08 13:24:22 +11:00
rtas_flash.c [PATCH] Don't check pointer for NULL before passing it to kfree [arch/powerpc/kernel/rtas_flash.c] 2006-02-07 21:51:53 +11:00
rtas_pci.c Merge ../linux-2.6 2006-03-17 12:01:19 +11:00
rtas-proc.c [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
rtas-rtc.c [PATCH] powerpc: RTC memory corruption 2006-03-16 16:55:03 +11:00
rtas.c [PATCH] powerpc: declare arch syscalls in <asm/syscalls.h> 2006-03-27 14:48:22 +11:00
semaphore.c powerpc: Merge enough to start building in arch/powerpc. 2005-09-26 16:04:21 +10:00
setup_32.c powerpc: Unify the 32 and 64 bit idle loops 2006-03-27 15:03:03 +11:00
setup_64.c powerpc: Unify the 32 and 64 bit idle loops 2006-03-27 15:03:03 +11:00
setup-common.c [PATCH] powerpc: Allow non zero boot cpuids 2006-03-27 14:48:48 +11:00
setup.h powerpc: create kernel/setup.h 2005-11-09 11:35:26 +11:00
signal_32.c [PATCH] powerpc: declare arch syscalls in <asm/syscalls.h> 2006-03-27 14:48:22 +11:00
signal_64.c [PATCH] powerpc: fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-03-28 16:45:24 +11:00
smp-tbsync.c powerpc: Merge smp-tbsync.c (the generic timebase sync routine) 2005-11-04 13:28:58 +11:00
smp.c powerpc: Implement accurate task and CPU time accounting 2006-02-24 14:05:56 +11:00
swsusp_32.S powerpc: Move swsusp.S over to arch/powerpc 2006-03-27 19:21:46 +11:00
sys_ppc32.c [PATCH] consolidate sys32/compat_adjtimex 2006-03-26 08:56:57 -08:00
syscalls.c [PATCH] powerpc: declare arch syscalls in <asm/syscalls.h> 2006-03-27 14:48:22 +11:00
sysfs.c [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel 2005-11-11 22:25:39 +11:00
systbl.S powerpc: Fix various syscall/signal/swapcontext bugs 2006-03-08 13:24:22 +11:00
tau_6xx.c powerpc: Move cpu_setup_6xx.S and temp.c over to arch/powerpc 2006-03-27 19:15:26 +11:00
time.c Merge ../linux-2.6 2006-03-17 12:01:19 +11:00
traps.c powerpc: Fix might-sleep warning in program check exception handler 2006-03-03 17:11:40 +11:00
udbg_16550.c [PATCH] powerpc: fix compile warning in udbg_init_maple_realmode 2006-02-07 21:51:52 +11:00
udbg.c [PATCH] powerpc: Make early debugging configurable via Kconfig 2006-01-11 14:48:26 +11:00
vdso.c Merge ../linux-2.6 2006-03-09 14:32:05 +11:00
vecemu.c
vector.S powerpc: Use reg.h instead of processor.h when we just want reg names 2005-10-10 22:20:10 +10:00
vio.c [PATCH] Add vio_bus_type probe and remove methods 2006-01-13 11:26:07 -08:00
vmlinux.lds.S powerpc: Fix vmlinux.lds.S for 32-bit 2005-11-05 10:36:59 +11:00