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linux/arch/powerpc/kernel
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Alexander Graf 021ec9c69f KVM: PPC: Call SLB patching code in interrupt safe manner 
Currently we're racy when doing the transition from IR=1 to IR=0, from
the module memory entry code to the real mode SLB switching code.

To work around that I took a look at the RTAS entry code which is faced
with a similar problem and did the same thing:

  A small helper in linear mapped memory that does mtmsr with IR=0 and
  then RFIs info the actual handler.

Thanks to that trick we can safely take page faults in the entry code
and only need to be really wary of what to do as of the SLB switching
part.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-03-01 12:35:49 -03:00
..
vdso32 powerpc: Fix segment mapping in vdso32 2009-10-27 16:42:40 +11:00
vdso64 Use macros for .data.page_aligned section. 2009-09-21 06:27:08 +02:00
.gitignore powerpc: Ignore generated vmlinux.lds in git 2008-10-07 14:26:18 +11:00
align.c powerpc: Handle VSX alignment faults correctly in little-endian mode 2009-12-18 14:55:43 +11:00
asm-offsets.c KVM: PPC: Call SLB patching code in interrupt safe manner 2010-03-01 12:35:49 -03:00
audit.c
btext.c powerpc: Use the common ascii hex helpers 2008-08-20 16:34:57 +10:00
cacheinfo.c powerpc/cacheinfo: Rename cache_dir per-cpu variable 2009-01-13 14:48:02 +11:00
cacheinfo.h powerpc: Rewrite sysfs processor cache info code 2009-01-08 16:25:10 +11:00
clock.c
compat_audit.c
cpu_setup_6xx.S powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
cpu_setup_44x.S AMCC PPC 460SX redwood SoC platform initial framework 2009-02-14 14:41:29 -05:00
cpu_setup_fsl_booke.S powerpc/fsl-booke: Enable L1 cache on e500v1/e500v2/e500mc CPUs 2009-06-15 21:45:30 -05:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
cputable.c powerpc: broadway processor support 2009-12-12 22:24:29 -07:00
crash_dump.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
crash.c powerpc: Remove get_irq_desc() 2009-10-30 17:20:55 +11:00
dbell.c powerpc: Add support for using doorbells for SMP IPI 2009-02-23 15:53:03 +11:00
dma-iommu.c powerpc: Change archdata dma_data to a union 2009-09-24 15:31:43 +10:00
dma-swiotlb.c powerpc: Kill unused swiotlb variable 2009-11-24 17:00:24 +11:00
dma.c powerpc: Rename get_dma_direct_offset get_dma_offset 2009-09-24 15:31:43 +10:00
entry_32.S powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
entry_64.S powerpc: Clear MSR_RI during RTAS calls 2010-02-09 13:56:24 +11:00
exceptions-64e.S powerpc/book3e-64: Remove duplicated #include 2009-09-24 15:31:41 +10:00
exceptions-64s.S Merge commit 'origin/master' into next 2009-12-09 17:14:38 +11:00
firmware.c powerpc: Make powerpc_firmware_features __read_mostly 2010-02-09 13:56:07 +11:00
fpu.S powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
ftrace.c Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:56:46 -07:00
head_8xx.S powerpc/8xx: Fix user space TLB walk in dcbX fixup 2010-01-15 13:26:16 +11:00
head_32.S powerpc: gamecube/wii: early debugging using usbgecko 2009-12-12 22:24:31 -07:00
head_40x.S powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
head_44x.S powerpc/mm: Cleanup handling of execute permission 2009-08-27 13:12:51 +10:00
head_64.S Make head_64.S aware of KVM real mode code 2009-11-05 16:49:57 +11:00
head_booke.h powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
head_fsl_booke.S powerpc/fsl-booke: replace a hardcoded constant 2010-02-17 21:10:25 -06:00
ibmebus.c powerpc: use dma_map_ops struct 2009-08-28 14:24:10 +10:00
idle_6xx.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_e500.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_power4.S
idle.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
io.c powerpc: tiny memcpy_(to|from)io optimisation 2009-11-04 16:43:12 -07:00
iomap.c
iommu.c iommu-helper: use bitmap library 2009-12-16 07:20:18 -08:00
irq.c powerpc: Convert big_irq_lock to raw_spinlock 2010-02-19 14:52:32 +11:00
isa-bridge.c [POWERPC] Remove leftover printk in isa-bridge.c 2008-05-09 20:22:59 +10:00
kgdb.c powerpc/booke: Introduce new CONFIG options for advanced debug registers 2010-02-17 14:03:16 +11:00
kprobes.c powerpc/booke: Introduce new CONFIG options for advanced debug registers 2010-02-17 14:03:16 +11:00
l2cr_6xx.S
legacy_serial.c powerpc/powermac: Fixup default serial port device for pmac_zilog 2008-07-28 16:30:53 +10:00
lparcfg.c powerpc: Remove trailing space in messages 2010-02-09 13:56:23 +11:00
machine_kexec_32.c kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15 08:35:42 -07:00
machine_kexec_64.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
machine_kexec.c powerpc: Allow mem=x cmdline to work with 4G+ 2009-05-15 16:43:41 +10:00
Makefile powerpc/chrp: Use the same RTAS daemon as pSeries 2009-10-30 17:20:53 +11:00
misc_32.S powerpc/8xx: Start using dcbX instructions in various copy routines 2009-12-09 17:10:37 +11:00
misc_64.S powerpc: Move VMX and VSX asm code to vector.S 2009-06-09 16:46:25 +10:00
misc.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
module_32.c powerpc/ppc32: ftrace, dynamic ftrace to handle modules 2008-11-20 10:52:53 -08:00
module_64.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
module.c module: cleanup FIXME comments about trimming exception table entries. 2009-06-12 21:47:05 +09:30
mpc7450-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
msi.c powerpc/PCI: include pci.h in powerpc MSI implementation 2009-03-25 08:54:29 -07:00
nvram_64.c arch/powerpc: Fix continuation line formats 2010-02-09 13:55:05 +11:00
of_device.c powerpc/of: Fix usage of dev_set_name() in of_device_alloc() 2009-06-26 16:55:35 +10:00
of_platform.c of: unify phandle name in struct device_node 2010-01-28 14:06:53 -07:00
paca.c powerpc: Add PACA fields specific to 64-bit Book3E processors 2009-08-20 10:25:08 +10:00
pci_32.c powerpc/pci: Merge ppc32 and ppc64 versions of phb_scan() 2009-09-02 15:45:53 +10:00
pci_64.c of: add 'of_' prefix to machine_is_compatible() 2010-02-09 08:33:00 -07:00
pci_dn.c powerpc/pci: Move pseries code into pseries platform specific area 2009-05-21 15:44:24 +10:00
pci_of_scan.c powerpc: Remove trailing space in messages 2010-02-09 13:56:23 +11:00
pci-common.c PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs 2010-02-23 09:43:31 -08:00
perf_callchain.c perf: Fix inconsistency between IP and callchain sampling 2010-01-28 14:31:20 +01:00
perf_event.c perf_events: Simplify code by removing cpu argument to hw_perf_group_sched_in() 2010-02-26 10:56:53 +01:00
pmc.c powerpc: Convert pmc_owner_lock to raw_spinlock 2010-02-19 14:52:33 +11:00
power4-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
power5-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
power5+-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
power6-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
power7-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
ppc32.h powerpc: Add VSX context save/restore, ptrace and signal support 2008-07-01 11:28:50 +10:00
ppc970-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
ppc_ksyms.c powerpc: do not export pci_alloc/free_consistent 2009-11-24 17:00:23 +11:00
ppc_save_regs.S powerpc: Prepare xmon_save_regs for use with kdump 2008-12-23 15:13:28 +11:00
proc_powerpc.c powerpc: Move /proc/ppc64 to /proc/powerpc and add symlink 2009-10-30 17:20:53 +11:00
process.c powerpc/booke: Add support for advanced debug registers 2010-02-17 14:03:17 +11:00
prom_init_check.sh powerpc: Print linux_banner in prom_init 2009-03-11 17:11:33 +11:00
prom_init.c powerpc/pseries: Pass more accurate number of supported cores to firmware 2010-02-04 14:33:54 +11:00
prom_parse.c powerpc: Fix of_node_put() exit path in of_irq_map_one() 2009-04-20 12:18:43 -06:00
prom.c of: move definition of of_chosen into common code. 2010-02-14 07:13:55 -07:00
ptrace32.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
ptrace.c powerpc/booke: Add support for advanced debug registers 2010-02-17 14:03:17 +11:00
reloc_64.S powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
rtas_flash.c powerpc: Move /proc/ppc64 to /proc/powerpc and add symlink 2009-10-30 17:20:53 +11:00
rtas_pci.c powerpc/pci: Clean up direct access to sysdata by RTAS 2009-05-21 15:44:23 +10:00
rtas-proc.c powerpc: Move /proc/ppc64 to /proc/powerpc update 2010-01-15 13:26:17 +11:00
rtas-rtc.c
rtas.c locking: Convert __raw_spin* functions to arch_spin* 2009-12-14 23:55:32 +01:00
rtasd.c powerpc/chrp: Use the same RTAS daemon as pSeries 2009-10-30 17:20:53 +11:00
setup_32.c swiotlb: Defer swiotlb init printing, export swiotlb_print_info() 2009-11-10 12:32:00 +01:00
setup_64.c Merge commit 'origin/master' into next 2009-12-09 17:14:38 +11:00
setup-common.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-12-14 09:58:24 -08:00
setup.h
signal_32.c powerpc/booke: Add support for advanced debug registers 2010-02-17 14:03:17 +11:00
signal_64.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal.c powerpc/booke: Add support for advanced debug registers 2010-02-17 14:03:17 +11:00
signal.h powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
smp-tbsync.c powerpc: Silence software timebase sync 2008-11-05 22:08:28 +11:00
smp.c powerpc: Move cpu hotplug driver lock from pseries to powerpc 2010-01-15 13:26:18 +11:00
softemu8xx.c Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
stacktrace.c powerpc: Removed duplicated include in stacktrace.c 2008-07-28 16:30:47 +10:00
suspend.c PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
swsusp_32.S powerpc/swsusp_32: Fix TLB invalidation 2010-01-15 13:20:07 +11:00
swsusp_64.c
swsusp_asm64.S powerpc: Fix 64-bit hibernation with 64k pages 2008-10-07 14:26:20 +11:00
swsusp.c powerpc/mm: Split mmu_context handling 2008-12-21 14:21:15 +11:00
sys_ppc32.c sysctl: Introduce a generic compat sysctl sysctl 2009-11-06 03:52:55 -08:00
syscalls.c Unify sys_mmap* 2009-12-11 06:44:29 -05:00
sysfs.c sysfs/cpu: Add probe/release files 2009-12-09 17:09:33 +11:00
systbl_chk.c
systbl_chk.sh
systbl.S
tau_6xx.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
time.c powerpc: Add timer, performance monitor and machine check counts to /proc/interrupts 2010-02-17 14:02:49 +11:00
traps.c powerpc: Convert die.lock to raw_spinlock 2010-02-19 14:52:33 +11:00
udbg_16550.c trivial: fix typo "for for" in multiple files 2009-09-21 15:14:54 +02:00
udbg.c powerpc: gamecube/wii: early debugging using usbgecko 2009-12-12 22:24:31 -07:00
vdso.c tree-wide: fix a very frequent spelling mistake 2009-11-09 09:40:54 +01:00
vecemu.c
vector.S powerpc: Fix usage of 64-bit instruction in 32-bit altivec code 2009-12-09 18:10:12 +11:00
vio.c powerpc: Change archdata dma_data to a union 2009-09-24 15:31:43 +10:00
vmlinux.lds.S module: handle ppc64 relocating kcrctabs when CONFIG_RELOCATABLE=y 2009-12-15 16:28:34 +10:30