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linux-stable/arch/powerpc
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Laurent Dufour c18956e6e0 powerpc/pseries: Fix update of LPAR security flavor after LPM 
After LPM, when migrating from a system with security mitigation enabled
to a system with mitigation disabled, the security flavor exposed in
/proc is not correctly set back to 0.

Do not assume the value of the security flavor is set to 0 when entering
init_cpu_char_feature_flags(), so when called after a LPM, the value is
set correctly even if the mitigation are not turned off.

Fixes: 6ce56e1ac3 ("powerpc/pseries: export LPAR security flavor in lparcfg")
Cc: stable@vger.kernel.org # v5.13+
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210805152308.33988-1-ldufour@linux.ibm.com
2021-08-07 08:53:59 +10:00
..
boot powerpc updates for 5.14 2021-07-02 12:54:34 -07:00
configs TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
crypto crypto: powepc/sha1 - remove unneeded semicolon 2021-03-07 15:13:14 +11:00
include powerpc/32: Fix critical and debug interrupts on BOOKE 2021-08-07 08:53:59 +10:00
kernel powerpc/smp: Fix OOPS in topology_init() 2021-08-07 08:53:59 +10:00
kexec powerpc updates for 5.14 2021-07-02 12:54:34 -07:00
kvm KVM: PPC: Book3S HV Nested: Sanitise H_ENTER_NESTED TM state 2021-07-23 16:19:38 +10:00
lib powerpc: Only build restart_table.c for 64s 2021-07-01 22:50:54 +10:00
math-emu powerpc/64s: avoid reloading (H)SRR registers if they are still valid 2021-06-25 00:06:55 +10:00
mm powerpc fixes for 5.14 #2 2021-07-09 10:26:52 -07:00
net powerpc/bpf: Reject atomic ops in ppc32 JIT 2021-07-05 22:23:25 +10:00
perf powerpc updates for 5.14 2021-07-02 12:54:34 -07:00
platforms powerpc/pseries: Fix update of LPAR security flavor after LPM 2021-08-07 08:53:59 +10:00
purgatory powerpc/kexec: Don't use .machine ppc64 in trampoline_64.S 2021-04-08 21:17:43 +10:00
sysdev powerpc/xive: Fix error handling when allocating an IPI 2021-07-05 22:23:25 +10:00
tools
xmon powerpc updates for 5.14 2021-07-02 12:54:34 -07:00
Kbuild
Kconfig powerpc updates for 5.14 2021-07-02 12:54:34 -07:00
Kconfig.debug powerpc: Make PPC_IRQ_SOFT_MASK_DEBUG depend on PPC64 2021-06-25 00:07:09 +10:00
Makefile Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
Makefile.postlink