Thomas Huth f6550976fe KVM: s390: vsie: Fix the initialization of the epoch extension (epdx) field ... commit 0dd4cdccda upstream. We recently experienced some weird huge time jumps in nested guests when rebooting them in certain cases. After adding some debug code to the epoch handling in vsie.c (thanks to David Hildenbrand for the idea!), it was obvious that the "epdx" field (the multi-epoch extension) did not get set to 0xff in case the "epoch" field was negative. Seems like the code misses to copy the value from the epdx field from the guest to the shadow control block. By doing so, the weird time jumps are gone in our scenarios. Link: https://bugzilla.redhat.com/show_bug.cgi?id=2140899 Fixes: 8fa1696ea7 ("KVM: s390: Multiple Epoch Facility support") Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Janosch Frank <frankja@linux.ibm.com> Cc: stable@vger.kernel.org # 4.19+ Link: https://lore.kernel.org/r/20221123090833.292938-1-thuth@redhat.com Message-Id: <20221123090833.292938-1-thuth@redhat.com> Signed-off-by: Janosch Frank <frankja@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-12-14 11:37:20 +01:00
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alpha
arc	arc: iounmap() arg is volatile	2022-11-03 23:59:15 +09:00
arm	Revert "ARM: dts: imx7: Fix NAND controller size-cells"	2022-12-14 11:37:19 +01:00
arm64	arm64: dts: rockchip: fix ir-receiver node names	2022-12-14 11:37:14 +01:00
csky	csky/kprobe: reclaim insn_slot on kprobe unregistration	2022-08-25 11:40:38 +02:00
h8300
hexagon
ia64	ia64: export memory_add_physaddr_to_nid to fix cxl build error	2022-10-26 12:34:59 +02:00
m68k
microblaze
mips	MIPS: pic32: treat port as signed integer	2022-12-02 17:41:02 +01:00
nds32
nios2	nios2: add FORCE for vmlinuz.gz	2022-12-02 17:41:08 +01:00
openrisc	openrisc: io: Define iounmap argument as volatile	2022-08-25 11:40:38 +02:00
parisc	parisc: Avoid printing the hardware path twice	2022-11-10 18:15:40 +01:00
powerpc	powerpc/pseries/vas: Pass hw_cpu_id to node associativity HCALL	2022-10-26 12:35:23 +02:00
riscv	riscv: kexec: Fixup irq controller broken in kexec crash path	2022-12-08 11:28:44 +01:00
s390	KVM: s390: vsie: Fix the initialization of the epoch extension (epdx) field	2022-12-14 11:37:20 +01:00
sh	sh: machvec: Use char[] for section boundaries	2022-10-26 12:34:36 +02:00
sparc
um	UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK	2022-10-26 12:34:23 +02:00
x86	KVM: x86/mmu: Fix race condition in direct_page_fault	2022-12-08 11:28:43 +01:00
xtensa
.gitignore
Kconfig