Marc Zyngier 64eedcefd4 UPSTREAM: KVM: arm64: Use shadow SPSR_EL1 when injecting exceptions on !VHE ... Injecting an exception into a guest with non-VHE is risky business. Instead of writing in the shadow register for the switch code to restore it, we override the CPU register instead. Which gets overriden a few instructions later by said restore code. The result is that although the guest correctly gets the exception, it will return to the original context in some random state, depending on what was there the first place... Boo. Fix the issue by writing to the shadow register. The original code is absolutely fine on VHE, as the state is already loaded, and writing to the shadow register in that case would actually be a bug. Bug: 254441685 Fixes: bb666c472c ("KVM: arm64: Inject AArch64 exceptions from HYP") Cc: stable@vger.kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Fuad Tabba <tabba@google.com> Link: https://lore.kernel.org/r/20220121184207.423426-1-maz@kernel.org (cherry picked from commit 278583055a) Signed-off-by: Lee Jones <joneslee@google.com> Change-Id: I5337f3d80d29b798b3cd078fe93fac666c4ae00c		2022-11-09 13:57:12 +00:00
..
alpha	This is the 5.10.134 stable release	2022-08-03 12:42:13 +02:00
arc	ARC: entry: fix syscall_trace_exit argument	2022-04-27 13:53:55 +02:00
arm	This is the 5.10.135 stable release	2022-08-04 10:59:03 +02:00
arm64	UPSTREAM: KVM: arm64: Use shadow SPSR_EL1 when injecting exceptions on !VHE	2022-11-09 13:57:12 +00:00
c6x
csky	This is the 5.10.121 stable release	2022-07-23 16:10:22 +02:00
h8300
hexagon	hexagon: clean up timer-regs.h	2021-11-26 10:39:19 +01:00
ia64	Merge 5.10.119 into android12-5.10-lts	2022-07-14 14:31:17 +02:00
m68k	This is the 5.10.134 stable release	2022-08-03 12:42:13 +02:00
microblaze	This is the 5.10.110 stable release	2022-04-18 17:41:18 +02:00
mips	This is the 5.10.127 stable release	2022-07-28 16:08:09 +02:00
nds32	nds32: fix access_ok() checks in get/put_user	2022-03-28 09:57:10 +02:00
nios2	nios2: use fallback for random_get_entropy() instead of zero	2022-05-30 09:33:41 +02:00
openrisc	openrisc: start CPU timer early in boot	2022-06-09 10:20:55 +02:00
parisc	This is the 5.10.127 stable release	2022-07-28 16:08:09 +02:00
powerpc	This is the 5.10.130 stable release	2022-07-28 17:04:30 +02:00
riscv	This is the 5.10.134 stable release	2022-08-03 12:42:13 +02:00
s390	This is the 5.10.135 stable release	2022-08-04 10:59:03 +02:00
sh	This is the 5.10.132 stable release	2022-07-28 17:17:55 +02:00
sparc	Merge 5.10.119 into android12-5.10-lts	2022-07-14 14:31:17 +02:00
um	This is the 5.10.133 stable release	2022-08-02 13:26:52 -07:00
x86	BACKPORT: KVM: x86: avoid calling x86 emulator without a decoded instruction	2022-09-12 22:52:54 +00:00
xtensa	This is the 5.10.127 stable release	2022-07-28 16:08:09 +02:00
.gitignore
Kconfig	This is the 5.10.80 stable release	2021-11-19 11:50:41 +01:00