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Benjamin Herrenschmidt 27f4488872 powerpc/powernv: Add OPAL takeover from PowerVM 
On machines supporting the OPAL firmware version 1, the system
is initially booted under pHyp. We then use a special hypercall
to verify if OPAL is available and if it is, we then trigger
a "takeover" which disables pHyp and loads the OPAL runtime
firmware, giving control to the kernel in hypervisor mode.

This patch add the necessary code to detect that the OPAL takeover
capability is present when running under PowerVM (aka pHyp) and
perform said takeover to get hypervisor control of the processor.

To perform the takeover, we must first use RTAS (within Open
Firmware runtime environment) to start all processors & threads,
in order to give control to OPAL on all of them. We then call
the takeover hypercall on everybody, OPAL will re-enter the kernel
main entry point passing it a flat device-tree.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-09-20 16:09:47 +10:00
..
vdso32 Fix common misspellings 2011-03-31 11:26:23 -03:00
vdso64 Fix common misspellings 2011-03-31 11:26:23 -03:00
.gitignore
align.c powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
asm-offsets.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
audit.c
btext.c Fix common misspellings 2011-03-31 11:26:23 -03:00
cacheinfo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cacheinfo.h
clock.c
compat_audit.c
cpu_setup_6xx.S powerpc: Fix some 6xx/7xxx CPU setup functions 2011-02-07 12:57:11 +11:00
cpu_setup_44x.S powerpc/44x: Add support for the AMCC APM821xx SoC 2010-10-13 08:47:09 -04:00
cpu_setup_a2.S powerpc: Add A2 cpu support 2011-04-27 13:02:02 +10:00
cpu_setup_fsl_booke.S powerpc/e5500: set non-base IVORs 2011-05-19 00:36:43 -05:00
cpu_setup_pa6t.S
cpu_setup_power7.S powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits 2011-07-12 13:16:58 +03:00
cpu_setup_ppc970.S powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits 2011-07-12 13:16:58 +03:00
cputable.c powerpc: Return the_cpu_ spec from identify_cpu 2011-08-05 14:47:54 +10:00
crash.c powerpc/kdump: Fix timeout in crash_kexec_wait_realmode 2011-07-19 15:13:05 +10:00
crash_dump.c crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn 2011-03-23 19:47:19 -07:00
dbell.c powerpc: Consolidate ipi message mux and demux 2011-05-19 15:31:03 +10:00
dma-iommu.c powerpc: Tidy up dma_map_ops after adding new hook 2011-09-20 09:19:37 +10:00
dma-swiotlb.c powerpc: Use the newly added get_required_mask dma_map_ops hook 2011-09-20 09:19:35 +10:00
dma.c powerpc: Tidy up dma_map_ops after adding new hook 2011-09-20 09:19:37 +10:00
e500-pmu.c perf, arch: Add generic NODE cache events 2011-07-01 11:06:38 +02:00
entry_32.S powerpc/ppc32/tracing: Add stack frame to calls of trace_hardirqs_on/off 2011-01-21 14:08:33 +11:00
entry_64.S powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
exceptions-64e.S powerpc/book3e-64: Reraise doorbell when masked by soft-irq-disable 2011-06-29 16:40:59 +10:00
exceptions-64s.S KVM: PPC: book3s_hv: Add support for PPC970-family processors 2011-07-12 13:16:59 +03:00
firmware.c
fpu.S powerpc: Remove second definition of STACK_FRAME_OVERHEAD 2010-11-29 15:48:23 +11:00
fsl_booke_entry_mapping.S powerpc/fsl-booke: Fix address issue when using relocatable kernels 2010-07-11 11:04:08 -05:00
ftrace.c powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
head_8xx.S powerpc/32: Pass device tree address as u64 to machine_init 2011-09-20 09:19:47 +10:00
head_32.S powerpc/32: Pass device tree address as u64 to machine_init 2011-09-20 09:19:47 +10:00
head_40x.S powerpc/32: Pass device tree address as u64 to machine_init 2011-09-20 09:19:47 +10:00
head_44x.S powerpc/32: Pass device tree address as u64 to machine_init 2011-09-20 09:19:47 +10:00
head_64.S powerpc/powernv: Add OPAL takeover from PowerVM 2011-09-20 16:09:47 +10:00
head_booke.h powerpc/85xx: Save scratch registers to thread info instead of using SPRGs. 2011-06-22 21:44:55 -05:00
head_fsl_booke.S powerpc/32: Pass device tree address as u64 to machine_init 2011-09-20 09:19:47 +10:00
hw_breakpoint.c powerpc, hw_breakpoint: Tell generic code we have no instruction breakpoints 2010-06-30 13:54:58 +10:00
ibmebus.c powerpc: Tidy up dma_map_ops after adding new hook 2011-09-20 09:19:37 +10:00
idle.c powerpc: Re-enable preemption before cpu_die() 2010-08-24 15:26:29 +10:00
idle_6xx.S
idle_book3e.S powerpc/book3e: Add generic 64-bit idle powersave support 2010-07-14 14:13:18 +10:00
idle_e500.S powerpc/e500mc: Add support for the wait instruction in e500_idle 2011-06-27 08:36:15 -05:00
idle_power4.S powerpc/pmac/smp: Properly NAP offlined CPU on G5 2011-04-01 15:37:25 +11:00
idle_power7.S KVM: PPC: Allow book3s_hv guests to use SMT processor modes 2011-07-12 13:16:57 +03:00
init_task.c
io-workarounds.c powerpc/pci: Properly initialize IO workaround "private" 2011-04-27 14:18:33 +10:00
io.c
iomap.c powerpc: Really fix build without CONFIG_PCI 2011-08-11 01:15:44 +10:00
iommu.c powerpc: iommu: Add device name to iommu error printks 2010-12-09 15:35:32 +11:00
irq.c powerpc: Copy back TIF flags on return from softirq stack 2011-07-22 13:38:58 +10:00
isa-bridge.c
jump_label.c powerpc: Add jump label support 2011-07-01 13:48:55 +10:00
kgdb.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-05-23 09:12:26 -07:00
kprobes.c powerpc/kprobes: Remove resume_execution() in kprobes 2010-06-02 17:50:37 +10:00
kvm.c PPC: KVM: Book E doesn't have __end_interrupts. 2010-11-05 14:42:27 -02:00
kvm_emul.S KVM: PPC: Make PV mtmsrd L=1 work with r30 and r31 2010-10-24 10:52:14 +02:00
l2cr_6xx.S Fix common misspellings 2011-03-31 11:26:23 -03:00
legacy_serial.c serial/8250: Move UPIO_TSI to powerpc 2011-09-20 09:19:39 +10:00
lparcfg.c powerpc/pseries: Add page coalescing support 2011-05-04 16:02:21 +10:00
machine_kexec.c powerpc: Move kdump default base address to half RMO size on 64bit 2011-08-05 14:47:56 +10:00
machine_kexec_32.c powerpc/kexec: make masking/disabling interrupts generic 2010-10-14 00:52:46 -05:00
machine_kexec_64.c powerpc: Use for_each_node_by_type instead of open coding it 2011-09-20 15:53:23 +10:00
Makefile powerpc: Add jump label support 2011-07-01 13:48:55 +10:00
misc.S powerpc: Remove unneeded cpu_setup/restore from POWER7 cputable entry 2010-11-29 15:48:22 +11:00
misc_32.S powerpc/44x: Kexec support for PPC440X chipsets 2011-08-11 13:50:37 -04:00
misc_64.S powerpc/maple: Enable scom access functions on Maple 2011-06-29 17:48:20 +10:00
module.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
module_32.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
module_64.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
mpc7450-pmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
msi.c
nvram_64.c powerpc/nvram: Generalize code for OS partitions in NVRAM 2011-03-04 18:19:04 +11:00
of_platform.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
paca.c powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits 2011-07-12 13:16:58 +03:00
pci-common.c powerpc/pci: Call pcie_bus_configure_settings() 2011-09-20 15:53:24 +10:00
pci_32.c Merge branch 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:12:10 -07:00
pci_64.c powerpc: rename ppc_pci_*_flags to pci_*_flags 2011-07-12 09:28:04 -05:00
pci_dn.c pci/of: Match PCI devices to OF nodes dynamically 2011-06-08 09:08:17 +10:00
pci_of_scan.c pci/of: Match PCI devices to OF nodes dynamically 2011-06-08 09:08:17 +10:00
perf_callchain.c powerpc/perf: Disable pagefaults during callchain stack read 2011-08-05 14:47:56 +10:00
perf_event.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
perf_event_fsl_emb.c perf: Remove the nmi parameter from the swevent and overflow interface 2011-07-01 11:06:35 +02:00
pmc.c
power4-pmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
power5+-pmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
power5-pmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
power6-pmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
power7-pmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
ppc32.h
ppc970-pmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
ppc_ksyms.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
ppc_save_regs.S Fix common misspellings 2011-03-31 11:26:23 -03:00
proc_powerpc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
process.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
prom.c Merge remote branch 'origin/master' into next 2011-06-30 15:23:59 +10:00
prom_init.c powerpc/powernv: Add OPAL takeover from PowerVM 2011-09-20 16:09:47 +10:00
prom_init_check.sh powerpc/powernv: Add OPAL takeover from PowerVM 2011-09-20 16:09:47 +10:00
prom_parse.c of/pci: move of_irq_map_pci() into generic code 2011-02-04 11:46:50 -07:00
ptrace.c perf: Add context field to perf_event 2011-07-01 11:06:38 +02:00
ptrace32.c powerpc: Update compat_arch_ptrace 2010-12-09 15:35:32 +11:00
reloc_64.S
rtas-proc.c
rtas-rtc.c powerpc/rtas-rtc: remove sideeffects of printk_ratelimit 2011-06-29 15:30:43 +10:00
rtas.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
rtas_flash.c notifiers: sys: move reboot notifiers into reboot.h 2011-07-25 20:57:14 -07:00
rtas_pci.c powerpc: rename ppc_pci_*_flags to pci_*_flags 2011-07-12 09:28:04 -05:00
rtasd.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
setup-common.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
setup.h
setup_32.c powerpc/32: Pass device tree address as u64 to machine_init 2011-09-20 09:19:47 +10:00
setup_64.c powerpc: Coding style cleanups 2011-09-20 15:53:23 +10:00
signal.c powerpc: fix double syscall restarts 2010-09-22 09:33:50 -07:00
signal.h
signal_32.c arch/powerpc: use printk_ratelimited instead of printk_ratelimit 2011-06-29 15:31:01 +10:00
signal_64.c arch/powerpc: use printk_ratelimited instead of printk_ratelimit 2011-06-29 15:31:01 +10:00
smp-tbsync.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
smp.c powerpc/smp: More generic support for "soft hotplug" 2011-09-20 15:53:24 +10:00
softemu8xx.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
stacktrace.c
suspend.c update email address 2010-07-19 10:56:54 +02:00
swsusp.c powerpc/mm: Fix the call trace when resumed from hibernation 2011-09-20 09:19:58 +10:00
swsusp_32.S Fix common misspellings 2011-03-31 11:26:23 -03:00
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S powerpc/fsl-booke: Add hibernation support for FSL BookE processors 2010-05-21 07:41:53 -05:00
sys_ppc32.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
syscalls.c
sysfs.c powerpc: Per process DSCR + some fixes (try#4) 2011-04-27 14:18:19 +10:00
systbl.S
systbl_chk.c
systbl_chk.sh
tau_6xx.c
time.c irq_work, ppc: Fix up arch hooks 2011-07-01 11:02:22 +02:00
traps.c powerpc/e500: Save SPEFCSR in flush_spe_to_thread() 2011-07-12 13:16:30 +03:00
udbg.c powerpc/ps3: Add gelic udbg driver 2011-09-20 09:20:05 +10:00
udbg_16550.c powerpc: Add early debug for WSP platforms 2011-05-06 13:32:41 +10:00
vdso.c mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm 2011-03-23 16:36:55 -04:00
vecemu.c
vector.S powerpc: Remove static branch hint in giveup_altivec 2011-05-19 14:30:42 +10:00
vio.c powerpc: Tidy up dma_map_ops after adding new hook 2011-09-20 09:19:37 +10:00
vmlinux.lds.S percpu: Always align percpu output section to PAGE_SIZE 2011-03-24 18:50:09 +01:00