Searched hist:d11974dc5f208ae1c0fe62a9bcb47c0cdcd7b081 (Results 1 – 2 of 2) sorted by relevance
| /linux/arch/arm64/kvm/ |
| H A D | mmio.c | diff d11974dc5f208ae1c0fe62a9bcb47c0cdcd7b081 Thu Oct 26 22:53:06 CEST 2023 Oliver Upton <oliver.upton@linux.dev> KVM: arm64: Add tracepoint for MMIO accesses where ISV==0
It is a pretty well known fact that KVM does not support MMIO emulation
without valid instruction syndrome information (ESR_EL2.ISV == 0). The
current kvm_pr_unimpl() is pretty useless, as it contains zero context
to relate the event to a vCPU.
Replace it with a precise tracepoint that dumps the relevant context
so the user can make sense of what the guest is doing.
Acked-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231026205306.3045075-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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| H A D | trace_arm.h | diff d11974dc5f208ae1c0fe62a9bcb47c0cdcd7b081 Thu Oct 26 22:53:06 CEST 2023 Oliver Upton <oliver.upton@linux.dev> KVM: arm64: Add tracepoint for MMIO accesses where ISV==0
It is a pretty well known fact that KVM does not support MMIO emulation
without valid instruction syndrome information (ESR_EL2.ISV == 0). The
current kvm_pr_unimpl() is pretty useless, as it contains zero context
to relate the event to a vCPU.
Replace it with a precise tracepoint that dumps the relevant context
so the user can make sense of what the guest is doing.
Acked-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231026205306.3045075-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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