Messages in this thread | | | Date | Thu, 28 Sep 2023 22:19:36 +0000 | From | Oliver Upton <> | Subject | Re: [PATCH v2 0/2] KVM: arm64: Support for Arm v8.8 memcpy instructions in KVM guests |
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On Thu, Sep 28, 2023 at 05:55:39PM +0100, Kristina Martsenko wrote:
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> > Perhaps I'm being pedantic, but I'd really like for there to be some > > documentation that suggests MOPS exceptions can happen due to context > > migration done by a higher EL as that is the only option in the context > > of virtualization. > > That's a good point. This shouldn't affect Linux guests as Linux is > always able to handle a MOPS exception coming from EL0. But it would > affect any non-Linux guest that pins all its EL0 tasks and doesn't > implement a handler. It's not clear to me what the expectation for > guests is, I'll ask the architects to clarify and get back to you.
That'd be excellent, thanks! All I'm looking for is something to point folks at if/when they complain about MOPS behavior in KVM guests.
-- Thanks, Oliver
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