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Re: [Qemu-arm] [RFC] arm: Allow system registers for KVM guests to be ch
Re: [Qemu-arm] [RFC] arm: Allow system registers for KVM guests to be changed by QEMU code
Fri, 7 Dec 2018 10:29:24 +0800
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On 2018/12/6 23:14, Peter Maydell wrote:
> I think this patch:
> * should be necessary for the current KVM debug code to be able
> to actually set the ESR_EL1 for the guest when it wants to
> deliver a breakpoint exception to it
> * will also be necessary for Dongjiu's patchset to inject
> external aborts on memory errors
> I have tagged it "RFC" because I don't have a setup to test
> that; I've just given it a quick smoke test that it runs a
> VM OK. Please test this and check whether it really does
> fix the bugs I think it does :-)
Great! thanks Peter follow up this issue and patch to fix it.
I will test it and give response.
> Opinions welcome on whether the "try the write-and-read-back"
> approach in write_cpustate_to_list() is too hacky and it
> would be better to actually record whether write_list_to_cpustate()
> succeeded for each register. (That would require another array.)