mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-11 11:09:13 +00:00
Code Issues Releases Wiki Activity
linux-stable/arch/powerpc/kernel
History
Michael Ellerman 9472d895cd powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti 
commit bc9c9304a4 upstream.

Because there may be some performance overhead of the RFI flush, add
kernel command line options to disable it.

We add a sensibly named 'no_rfi_flush' option, but we also hijack the
x86 option 'nopti'. The RFI flush is not the same as KPTI, but if we
see 'nopti' we can guess that the user is trying to avoid any overhead
of Meltdown mitigations, and it means we don't have to educate every
one about a different command line option.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23 19:58:11 +01:00
..
trace License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vdso32 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vdso64 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
.gitignore
align.c powerpc: Fix check for copy/paste instructions in alignment handler 2017-10-25 12:42:35 +02:00
asm-offsets.c powerpc/64s: Add support for RFI flush of L1-D cache 2018-01-23 19:58:10 +01:00
audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
btext.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cacheinfo.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
cacheinfo.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpu_setup_6xx.S
cpu_setup_44x.S
cpu_setup_fsl_booke.S
cpu_setup_pa6t.S
cpu_setup_power.S powerpc/64s: Initialize ISAv3 MMU registers before setting partition table 2017-12-14 09:52:57 +01:00
cpu_setup_ppc970.S
cputable.c powerpc/8xx: Use symbolic PVR value 2017-08-10 23:32:18 +10:00
crash.c powerpc/fadump: remove dependency with CONFIG_KEXEC 2017-05-08 17:15:11 -07:00
crash_dump.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dbell.c powerpc: Introduce msgsnd/doorbell barrier primitives 2017-04-13 23:34:33 +10:00
dma-iommu.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dma-swiotlb.c treewide: Constify most dma_map_ops structures 2017-01-24 12:23:35 -05:00
dma.c powerpc: merge __dma_set_mask into dma_set_mask 2017-06-28 06:54:55 -07:00
dt_cpu_ftrs.c powerpc: Fix action argument for cpufeatures-based TLB flush 2017-10-03 16:16:55 +11:00
eeh.c powerpc/eeh: Create PHB PEs after EEH is initialized 2017-09-21 14:56:00 +10:00
eeh_cache.c
eeh_dev.c powerpc/eeh: Create PHB PEs after EEH is initialized 2017-09-21 14:56:00 +10:00
eeh_driver.c powerpc/eeh: Remove unnecessary pointer to phb from eeh_dev 2017-08-31 14:26:09 +10:00
eeh_event.c powerpc/pci: Always print PHB and PE numbers as hexadecimal 2016-11-22 11:57:07 +11:00
eeh_pe.c powerpc/eeh: Remove unnecessary config_addr from eeh_dev 2017-08-31 14:26:09 +10:00
eeh_sysfs.c powerpc/eeh: Remove unnecessary config_addr from eeh_dev 2017-08-31 14:26:09 +10:00
entry_32.S powerpc/32: Avoid risk of unrecoverable TLBmiss inside entry_32.S 2017-08-15 22:55:53 +10:00
entry_64.S powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL 2018-01-23 19:58:10 +01:00
epapr_hcalls.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
epapr_paravirt.c
exceptions-64e.S powerpc/64e: Fix hang when debugging programs with relocated kernel 2017-04-30 01:05:18 -05:00
exceptions-64s.S powerpc/64s: Add support for RFI flush of L1-D cache 2018-01-23 19:58:10 +01:00
fadump.c Revert "powerpc: Do not call ppc_md.panic in fadump panic notifier" 2017-12-14 09:52:57 +01:00
firmware.c
fpu.S Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-10-14 14:26:58 -07:00
fsl_booke_entry_mapping.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
head_8xx.S powerpc/8xx: Reduce DTLB miss handler by one insn 2017-08-15 22:55:55 +10:00
head_32.S powerpc/mm: Use symbolic constants for filtering SRR1 bits on ISIs 2017-08-03 16:06:44 +10:00
head_40x.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
head_44x.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
head_64.S powerpc/asm: Convert .llong directives to .8byte 2017-08-31 14:26:47 +10:00
head_booke.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
head_fsl_booke.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
hw_breakpoint.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next 2017-02-18 21:37:14 +11:00
idle.c
idle_6xx.S
idle_book3e.S
idle_book3s.S powerpc/64s: idle POWER9 can execute stop in virtual mode 2017-08-29 21:42:14 +10:00
idle_e500.S
idle_power4.S
ima_kexec.c powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
io-workarounds.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
io.c
iomap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iommu.c powerpc/iommu: Use permission-specific DEVICE_ATTR variants 2017-09-01 16:42:54 +10:00
irq.c powerpc/64s: Merge HV and non-HV paths for doorbell IRQ replay 2017-08-23 23:13:27 +10:00
isa-bridge.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
jump_label.c
kexec_elf_64.c powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
kgdb.c powerpc/8xx: Getting rid of remaining use of CONFIG_8xx 2017-08-10 23:32:12 +10:00
kprobes-ftrace.c powerpc/jprobes: Disable preemption when triggered through ftrace 2017-12-10 13:40:43 +01:00
kprobes.c powerpc/kprobes: Dereference function pointers only if the address does not belong to kernel text 2017-11-01 15:51:03 +11:00
kvm.c powerpc/64: Fix watchdog configuration regressions 2017-08-31 14:26:00 +10:00
kvm_emul.S
l2cr_6xx.S powerpc/l2cr_6xx: Fix invalid use of register expressions 2017-08-15 21:04:32 +10:00
legacy_serial.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
machine_kexec.c
machine_kexec_32.c
machine_kexec_64.c powerpc: Add purgatory for kexec_file_load() implementation. 2016-11-30 23:15:26 +11:00
machine_kexec_file_64.c powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mce.c powerpc/mce: Move 64-bit machine check code into mce.c 2017-08-10 23:31:31 +10:00
mce_power.c powerpc: Fix workaround for spurious MCE on POWER9 2017-09-29 14:19:44 +10:00
misc.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
misc_32.S powerpc/40x: Clear MSR_DR in one insn instead of two 2017-06-02 19:20:43 +10:00
misc_64.S powerpc/kexec: Fix kexec/kdump in P9 guest kernels 2017-12-05 11:26:31 +01:00
module.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
module_32.c
module_64.c modversions: treat symbol CRCs as 32 bit quantities 2017-02-03 08:28:25 -08:00
msi.c
nvram_64.c powerpc/nvram: use memdup_user 2017-06-27 17:02:50 -07:00
of_platform.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
optprobes.c powerpc/kprobes: Disable preemption before invoking probe handler for optprobes 2017-12-10 13:40:43 +01:00
optprobes_head.S powerpc/kprobes: Don't save/restore DAR/DSISR to/from pt_regs for optprobes 2017-08-24 16:19:01 +10:00
paca.c treewide: make "nr_cpu_ids" unsigned 2017-09-08 18:26:48 -07:00
pci-common.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
pci-hotplug.c
pci_32.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
pci_64.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
pci_dn.c powerpc/pci: Remove OF node back pointer from pci_dn 2017-08-31 14:26:12 +10:00
pci_of_scan.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
pmc.c
ppc32.h
ppc_save_regs.S
proc_powerpc.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
process.c powerpc/oops: Line up NIP & MSR with other rows 2017-08-28 22:10:00 +10:00
prom.c powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N 2017-05-25 23:07:44 +10:00
prom_init.c powerpc/xive: add XIVE Exploitation Mode to CAS 2017-09-02 21:02:38 +10:00
prom_init_check.sh
prom_parse.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ptrace.c powerpc/tm: Flush TM only if CPU has TM feature 2017-09-20 13:30:09 +10:00
ptrace32.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
reloc_32.S
reloc_64.S powerpc/asm: Convert .llong directives to .8byte 2017-08-31 14:26:47 +10:00
rtas-proc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rtas-rtc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rtas.c mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
rtas_flash.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
rtas_pci.c powerpc/kernel: Change retrieval of pci_dn 2017-08-31 14:26:40 +10:00
rtasd.c powerpc: Only obtain cpu_hotplug_lock if called by rtasd 2017-06-23 09:32:11 +02:00
setup-common.c Revert "powerpc: Do not call ppc_md.panic in fadump panic notifier" 2017-12-14 09:52:57 +01:00
setup.h
setup_32.c powerpc/32: remove a NOP from memset() 2017-09-01 16:42:46 +10:00
setup_64.c powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti 2018-01-23 19:58:11 +01:00
signal.c powerpc/signal: Properly handle return value from uprobe_deny_signal() 2017-11-30 08:40:56 +00:00
signal.h powerpc: tm: Rename transct_(*) to ck(\1)_state 2016-10-04 20:33:16 +11:00
signal_32.c signal: Remove kernel interal si_code magic 2017-07-24 14:30:28 -05:00
signal_64.c powerpc/tm: Fix illegal TM state in signal handler 2017-10-06 22:12:55 +11:00
smp-tbsync.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
smp.c powerpc/smp: Add Power9 scheduler topology 2017-08-31 18:16:08 +10:00
stacktrace.c powerpc: Make /proc/self/stack always print the current stack 2017-03-28 14:43:59 +11:00
suspend.c
swsusp.c powerpc/swsusp: Include suspend.h to silence sparse warnings 2017-03-20 19:02:49 +11:00
swsusp_32.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
swsusp_64.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/nmi.h> 2017-03-02 08:42:30 +01:00
swsusp_asm64.S powerpc: Fix invalid use of register expressions 2017-08-10 22:29:41 +10:00
swsusp_booke.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sys_ppc32.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
syscalls.c powerpc/tracing: Allow tracing of mmap syscalls 2017-04-12 22:32:43 +10:00
sysfs.c powerpc/sysfs: Move #ifdef CONFIG_HOTPLUG_CPU out of the function body 2017-05-03 14:45:38 +10:00
systbl.S powerpc/asm: Convert .llong directives to .8byte 2017-08-31 14:26:47 +10:00
systbl_chk.c
systbl_chk.sh
tau_6xx.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
time.c powerpc: use spin loop primitives in some functions 2017-07-02 20:40:24 +10:00
tm.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
traps.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into fixes 2017-09-20 20:05:24 +10:00
udbg.c
udbg_16550.c
uprobes.c powerpc/uprobes: Implement arch_uretprobe_is_alive() 2017-08-24 16:19:21 +10:00
vdso.c powerpc/64: Clean up ppc64_caches using a struct per cache 2017-02-06 19:46:04 +11:00
vecemu.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vector.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vmlinux.lds.S powerpc/64s: Add support for RFI flush of L1-D cache 2018-01-23 19:58:10 +01:00
watchdog.c powerpc/watchdog: Do not trigger SMP crash from touch_nmi_watchdog 2017-12-25 14:26:28 +01:00