Marc Zyngier a3aa4850b3 KVM: arm64: Use shadow SPSR_EL1 when injecting exceptions on !VHE ... commit 278583055a upstream. 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. 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 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-02-01 17:26:59 +01:00
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include	KVM: arm64: Save PSTATE early on exit	2021-12-17 10:30:14 +01:00
nvhe	KVM: arm64: Fix host stage-2 finalization	2021-11-25 09:48:32 +01:00
vhe	Merge branch kvm-arm64/pkvm-fixed-features-prologue into kvmarm-master/next	2021-08-20 12:23:53 +01:00
aarch32.c	KVM: arm64: Move kvm_vcpu_trap_il_is32bit into kvm_skip_instr32()	2020-11-10 08:34:24 +00:00
entry.S	KVM: arm64: Save/restore MTE registers	2021-06-22 14:08:05 +01:00
exception.c	KVM: arm64: Use shadow SPSR_EL1 when injecting exceptions on !VHE	2022-02-01 17:26:59 +01:00
fpsimd.S	KVM: arm64: Rework SVE host-save/guest-restore	2021-03-18 13:57:37 +00:00
hyp-entry.S	KVM: arm64: Extract ESR_ELx.EC only	2021-11-18 19:16:02 +01:00
Makefile	KVM: arm64: Prepare the creation of s1 mappings at EL2	2021-03-19 12:01:21 +00:00
pgtable.c	KVM: arm64: Enable retrieving protections attributes of PTEs	2021-08-11 11:39:51 +01:00
reserved_mem.c	memblock: make memblock_find_in_range method private	2021-09-03 09:58:17 -07:00
vgic-v2-cpuif-proxy.c	KVM: arm64: Remove hyp_symbol_addr	2021-01-23 14:01:00 +00:00
vgic-v3-sr.c	KVM: arm64: Fix CPU interface MMIO compatibility detection	2021-03-24 17:26:38 +00:00