Nico Boehr 74114d26e9 s390/perf: obtain sie_block from the right address ... commit c9bfb460c3e4da2462e16b0f0b200990b36b1dd2 upstream. Since commit 1179f170b6 ("s390: fix fpu restore in entry.S"), the sie_block pointer is located at empty1[1], but in sie_block() it was taken from empty1[0]. This leads to a random pointer being dereferenced, possibly causing system crash. This problem can be observed when running a simple guest with an endless loop and recording the cpu-clock event: sudo perf kvm --guestvmlinux=<guestkernel> --guest top -e cpu-clock With this fix, the correct guest address is shown. Fixes: 1179f170b6 ("s390: fix fpu restore in entry.S") Cc: stable@vger.kernel.org Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Nico Boehr <nrb@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-06-09 10:21:24 +02:00
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appldata
boot
configs
crypto
hypfs	s390/hypfs: include z/VM guests with access control group set	2022-02-01 17:25:38 +01:00
include	s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES	2022-06-09 10:20:54 +02:00
kernel	s390/perf: obtain sie_block from the right address	2022-06-09 10:21:24 +02:00
kvm	KVM: s390: Return error on SIDA memop on normal guest	2022-02-11 09:09:03 +01:00
lib
mm
net
oprofile
pci	s390/pci: improve zpci_dev reference counting	2022-05-25 09:17:53 +02:00
purgatory
tools
Kbuild
Kconfig
Kconfig.debug
Makefile	s390: disable -Warray-bounds	2022-05-18 10:23:45 +02:00