Christophe Leroy d4bf905307 powerpc: Fix CONFIG_TRACE_IRQFLAGS with CONFIG_VMAP_STACK ... When CONFIG_PROVE_LOCKING is selected together with (now default) CONFIG_VMAP_STACK, kernel enter deadlock during boot. At the point of checking whether interrupts are enabled or not, the value of MSR saved on stack is read using the physical address of the stack. But at this point, when using VMAP stack the DATA MMU translation has already been re-enabled, leading to deadlock. Don't use the physical address of the stack when CONFIG_VMAP_STACK is set. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: 028474876f ("powerpc/32: prepare for CONFIG_VMAP_STACK") Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/daeacdc0dec0416d1c587cc9f9e7191ad3068dc0.1581095957.git.christophe.leroy@c-s.fr		2020-02-08 21:49:06 +11:00
..
syscalls	threads-v5.6	2020-01-29 19:38:34 -08:00
trace	powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR	2019-09-18 12:24:55 +10:00
vdso32	powerpc/vdso32: miscellaneous optimisations	2020-01-23 21:31:16 +11:00
vdso64	powerpc: Fix vDSO clock_getres()	2019-12-05 00:13:55 +11:00
.gitignore
align.c
asm-offsets.c	powerpc/32: prepare for CONFIG_VMAP_STACK	2020-01-26 22:15:09 +11:00
audit.c
btext.c
cacheinfo.c
cacheinfo.h
compat_audit.c
cpu_setup_6xx.S
cpu_setup_44x.S
cpu_setup_fsl_booke.S	powerpc/booke: Spelling s/date/data/	2019-11-17 01:56:31 -06:00
cpu_setup_pa6t.S
cpu_setup_power.S	powerpc/64s: Set reserved PCR bits	2019-09-21 08:36:53 +10:00
cpu_setup_ppc970.S
cputable.c
crash_dump.c
dawr.c	powerpc/watchpoint: Fix length calculation for unaligned target	2019-11-13 16:58:03 +11:00
dbell.c	KVM: PPC: Book3S HV: use smp_mb() when setting/clearing host_ipi flag	2019-09-24 12:46:26 +10:00
dma-iommu.c	powerpc updates for 5.4	2019-09-20 11:48:06 -07:00
dma-mask.c
dma-swiotlb.c
dt_cpu_ftrs.c	powerpc/mm: Remove kvm radix prefetch workaround for Power9 DD2.2	2020-01-26 00:11:37 +11:00
early_32.c	powerpc/fsl_booke/32: implement KASLR infrastructure	2019-11-13 19:27:40 +11:00
eeh_cache.c	powerpc/eeh_cache: Don't use pci_dn when inserting new ranges	2020-01-23 21:31:18 +11:00
eeh_dev.c
eeh_driver.c	powerpc/powernv/iov: Ensure the pdn for VFs always contains a valid PE number	2020-01-06 16:25:28 +11:00
eeh_event.c
eeh_pe.c
eeh_sysfs.c	powerpc/eeh_sysfs: Make clearing EEH_DEV_SYSFS saner	2020-01-23 21:31:19 +11:00
eeh.c	powerpc/eeh: Only dump stack once if an MMIO loop is detected	2020-01-23 21:31:20 +11:00
entry_32.S	powerpc: Fix CONFIG_TRACE_IRQFLAGS with CONFIG_VMAP_STACK	2020-02-08 21:49:06 +11:00
entry_64.S	powerpc updates for 5.6	2020-02-04 13:06:46 +00:00
epapr_hcalls.S
epapr_paravirt.c
exceptions-64e.S	powerpc: unify definition of M_IF_NEEDED	2019-11-13 19:27:24 +11:00
exceptions-64s.S	powerpc: Provide initial documentation for PAPR hcalls	2020-01-29 21:30:50 +11:00
fadump.c	powerpc/fadump: when fadump is supported register the fadump sysfs files.	2019-11-13 16:58:11 +11:00
firmware.c
fpu.S	powerpc/32s: Enable CONFIG_VMAP_STACK	2020-01-27 22:37:24 +11:00
fsl_booke_entry_mapping.S	powerpc/fsl_booke/32: implement KASLR infrastructure	2019-11-13 19:27:40 +11:00
head_8xx.S	powerpc/8xx: Enable CONFIG_VMAP_STACK	2020-01-27 22:36:59 +11:00
head_32.h	powerpc/32s: Enable CONFIG_VMAP_STACK	2020-01-27 22:37:24 +11:00
head_32.S	powerpc/32s: Enable CONFIG_VMAP_STACK	2020-01-27 22:37:24 +11:00
head_40x.S	powerpc/32: save DEAR/DAR before calling handle_page_fault	2020-01-26 22:15:09 +11:00
head_44x.S
head_64.S
head_booke.h	powerpc/32: save DEAR/DAR before calling handle_page_fault	2020-01-26 22:15:09 +11:00
head_fsl_booke.S	powerpc/32: save DEAR/DAR before calling handle_page_fault	2020-01-26 22:15:09 +11:00
hw_breakpoint.c	powerpc/hw_breakpoints: Rewrite 8xx breakpoints to allow any address range size.	2020-01-23 21:31:14 +11:00
idle_6xx.S
idle_book3e.S
idle_book3s.S	powerpc/64s: Reimplement power4_idle code in C	2020-01-16 14:59:37 +10:00
idle_e500.S
idle.c	powerpc/64s: Reimplement power4_idle code in C	2020-01-16 14:59:37 +10:00
ima_arch.c	powerpc/ima: Indicate kernel modules appended signatures are enforced	2019-11-12 12:25:50 +11:00
io-workarounds.c
io.c
iomap.c
iommu.c
irq.c	powerpc/32: Use vmapped stacks for interrupts	2020-01-27 22:36:15 +11:00
isa-bridge.c
jump_label.c
kgdb.c
kprobes-ftrace.c
kprobes.c
kvm_emul.S
kvm.c
l2cr_6xx.S
legacy_serial.c	tty/serial: Migrate 8250_fsl to use has_sysrq	2019-12-18 15:04:42 +01:00
Makefile	powerpc/64s: Reimplement power4_idle code in C	2020-01-16 14:59:37 +10:00
mce_power.c	powerpc/mm/mce: Keep irqs disabled during lockless page table walk	2019-09-19 21:24:59 +10:00
mce.c
misc_32.S	powerpc/32: Split kexec low level code out of misc_32.S	2019-11-21 15:41:34 +11:00
misc_64.S	Merge branch 'topic/kaslr-book3e32' into next	2019-11-14 19:23:33 +11:00
misc.S
module_32.c
module_64.c
module.c
module.lds
msi.c
note.S
nvram_64.c
of_platform.c
optprobes_head.S
optprobes.c
paca.c
pci_32.c
pci_64.c
pci_dn.c	powerpc/pcidn: Warn when sriov pci_dn management is used incorrectly	2020-01-23 21:31:19 +11:00
pci_of_scan.c	powerpc/pci: Remove pcibios_setup_bus_devices()	2020-01-06 16:25:29 +11:00
pci-common.c	powerpc/pci: Fold pcibios_setup_device() into pcibios_bus_add_device()	2020-01-23 21:31:21 +11:00
pci-hotplug.c	powerpc/pci: Remove pcibios_setup_bus_devices()	2020-01-06 16:25:29 +11:00
pmc.c
ppc32.h
ppc_save_regs.S
proc_powerpc.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
process.c	powerpc: use probe_user_read() and probe_user_write()	2020-01-26 00:11:35 +11:00
prom_init_check.sh	powerpc/prom_init: Undo relocation before entering secure mode	2019-10-29 15:12:17 +11:00
prom_init.c	powerpc/pseries: Enable support for ibm,drc-info property	2019-11-13 16:58:00 +11:00
prom_parse.c
prom.c	powerpc/fadump: add support to preserve crash data on FADUMP disabled kernel	2019-09-14 00:04:45 +10:00
ptrace32.c
ptrace.c	powerpc/watchpoint: Fix ptrace code that muck around with address/len	2019-11-13 16:58:03 +11:00
reloc_32.S
reloc_64.S
rtas_flash.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
rtas_pci.c
rtas-proc.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
rtas-rtc.c
rtas.c
rtasd.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
secure_boot.c	powerpc: Detect the trusted boot state of the system	2019-11-12 12:25:49 +11:00
security.c	powerpc updates for 5.5	2019-11-30 14:35:43 -08:00
secvar-ops.c	powerpc/powernv: Add OPAL API interface to access secure variable	2019-11-13 00:33:22 +11:00
secvar-sysfs.c	powerpc: expose secure variables to userspace via sysfs	2019-11-13 00:33:22 +11:00
setup_32.c	powerpc/32: Use vmapped stacks for interrupts	2020-01-27 22:36:15 +11:00
setup_64.c	powerpc: align stack to 2 * THREAD_SIZE with VMAP_STACK	2020-01-26 22:15:09 +11:00
setup-common.c	arch/powerpc/setup: Drop dummy_con initialization	2020-01-14 15:29:17 +01:00
setup.h	powerpc/32: Add early stack overflow detection with VMAP stack.	2020-01-27 22:35:49 +11:00
signal_32.c
signal_64.c
signal.c
signal.h
smp-tbsync.c
smp.c
stacktrace.c	powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR	2019-09-18 12:24:55 +10:00
suspend.c
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S
swsusp.c
sys_ppc32.c
syscalls.c	y2038: syscalls: change remaining timeval to __kernel_old_timeval	2019-11-15 14:38:29 +01:00
sysfs.c
systbl_chk.sh
systbl.S
tau_6xx.c
time.c	powerpc: Fix vDSO clock_getres()	2019-12-05 00:13:55 +11:00
tm.S
traps.c	powerpc/32: Add early stack overflow detection with VMAP stack.	2020-01-27 22:35:49 +11:00
ucall.S
udbg_16550.c
udbg.c	powerpc/udbg: Make it safe to call udbg_printf() always	2019-10-11 19:33:25 +11:00
uprobes.c
vdso.c	powerpc/vdso32: Don't read cache line size from the datapage on PPC32.	2020-01-23 21:31:15 +11:00
vecemu.c
vector.S	powerpc/32s: Enable CONFIG_VMAP_STACK	2020-01-27 22:37:24 +11:00
vmlinux.lds.S	powerpc: align stack to 2 * THREAD_SIZE with VMAP_STACK	2020-01-26 22:15:09 +11:00
watchdog.c