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| author |   Andrew Scull <ascull@google.com> | 2021-03-05 18:52:49 +0000 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2021-03-06 04:18:40 -0500 |
| commit | c4b000c3928d4f20acef79dccf3a65ae3795e0b0 (patch) | |
| tree | d503cf7f29b266aa53ea89be1c261b72589da249 /arch/arm64/include/asm/kvm_hyp.h | |
| parent | KVM: arm64: Avoid corrupting vCPU context register in guest exit (diff) | |
| download | linux-dev-c4b000c3928d4f20acef79dccf3a65ae3795e0b0.tar.xz linux-dev-c4b000c3928d4f20acef79dccf3a65ae3795e0b0.zip | |
KVM: arm64: Fix nVHE hyp panic host context restore
When panicking from the nVHE hyp and restoring the host context, x29 is
expected to hold a pointer to the host context. This wasn't being done
so fix it to make sure there's a valid pointer the host context being
used.
Rather than passing a boolean indicating whether or not the host context
should be restored, instead pass the pointer to the host context. NULL
is passed to indicate that no context should be restored.
Fixes: a2e102e20fd6 ("KVM: arm64: nVHE: Handle hyp panics")
Cc: stable@vger.kernel.org
Signed-off-by: Andrew Scull <ascull@google.com>
[maz: partial rewrite to fit 5.12-rc1]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210219122406.1337626-1-ascull@google.com
Message-Id: <20210305185254.3730990-4-maz@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/arm64/include/asm/kvm_hyp.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_hyp.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h index 385bd7dd3d39..32ae676236b6 100644 --- a/arch/arm64/include/asm/kvm_hyp.h +++ b/arch/arm64/include/asm/kvm_hyp.h @@ -102,7 +102,8 @@ bool kvm_host_psci_handler(struct kvm_cpu_context *host_ctxt); void __noreturn hyp_panic(void); #ifdef __KVM_NVHE_HYPERVISOR__ -void __noreturn __hyp_do_panic(bool restore_host, u64 spsr, u64 elr, u64 par); +void __noreturn __hyp_do_panic(struct kvm_cpu_context *host_ctxt, u64 spsr, + u64 elr, u64 par); #endif #endif /* __ARM64_KVM_HYP_H__ */ |