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cd1231d703
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Madhavan Srinivasan cd1231d703 powerpc/perf: Prevent kernel address leak via perf_get_data_addr() 
Sampled Data Address Register (SDAR) is a 64-bit register that
contains the effective address of the storage operand of an
instruction that was being executed, possibly out-of-order, at or
around the time that the Performance Monitor alert occurred.

In certain scenario SDAR happen to contain the kernel address even for
userspace only sampling. Add checks to prevent it.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-03-27 19:25:09 +11:00
..
boot powerpc: dts: replace 'linux,stdout-path' with 'stdout-path' 2018-03-20 16:47:54 +11:00
configs powerpc updates for 4.16 2018-02-02 10:01:04 -08:00
crypto crypto: hash - annotate algorithms taking optional key 2018-01-12 23:03:35 +11:00
include Merge branch 'topic/ppc-kvm' into next 2018-03-24 08:43:18 +11:00
kernel Merge branch 'topic/ppc-kvm' into next 2018-03-24 08:43:18 +11:00
kvm Merge branch 'topic/ppc-kvm' into next 2018-03-24 08:43:18 +11:00
lib powerpc/32: Move the inline keyword at the beginning of function declaration 2018-03-13 15:50:33 +11:00
math-emu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm powerpc/64: Call H_REGISTER_PROC_TBL when running as a HPT guest on POWER9 2018-03-27 19:25:08 +11:00
net powerpc/bpf/jit: Fix 32-bit JIT for seccomp_data access 2018-02-22 14:36:08 +11:00
oprofile powerpc: Use sizeof(*foo) rather than sizeof(struct foo) 2018-03-20 16:47:53 +11:00
perf powerpc/perf: Prevent kernel address leak via perf_get_data_addr() 2018-03-27 19:25:09 +11:00
platforms powerpc/64: Call H_REGISTER_PROC_TBL when running as a HPT guest on POWER9 2018-03-27 19:25:08 +11:00
purgatory License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysdev powerpc/xive: Use hw CPU ids when configuring the CPU queues 2018-02-15 09:54:43 +11:00
tools License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xmon powerpc/xmon: Move empty plpar_set_ciabr() into plpar_wrappers.h 2018-03-13 23:43:04 +11:00
Kconfig Merge branch 'linus' into sched/urgent, to resolve conflicts 2018-02-06 21:12:31 +01:00
Kconfig.debug powerpc: Add new kconfig CONFIG_PPC_IRQ_SOFT_MASK_DEBUG 2018-01-19 22:37:03 +11:00
Makefile powerpc: Keep const vars out of writable .sdata 2018-03-06 09:21:21 +11:00
Makefile.postlink License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00