<smaeul>
LordDoskias: if you are talking about the kernel, there are a couple of "generic" things I found are still missing: 1) system sleep 2) IOMMU support
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<LordDoskias>
so am i right in thinking that in order to boot linux one need to have setup some environment via firmware?
<LordDoskias>
for example in the linux source code i never see the m[ie]deleg register being defined or configured, yet i see in kvm that h[ie]deleg are configured appropriately, but in order for them to have any effect the respective exceptions/interrupts need to be delegated from M mode to S mode via m[ie]deleg, no ?
<lagash>
It would be cool if someone here who has the hardware could do a benchmark.
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<jrtc27>
LordDoskias: s-mode (where linux and other such operating systems run) cannot touch m-mode registers, so yes, the firmware is responsible for delegating the set of interrupts it does not want to manage
<jrtc27>
just as the hypervisor is responsible for further delegating them to the guest
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<LordDoskias>
right, but in order for the hypervisor to delegate handling of interrupts in VS mode they need to be first delegated to HS mode
<LordDoskias>
but nothing mandates the firmware to do this, otherwise the effect of writing to h[ie]deleg would be nil, no ?
<LordDoskias>
so you can have a system with HS mode implemented but effectively have it 'broken' if the fw doesn't properly delegate exceptions to hs mode?
<conchuod>
mmind00: i had one of those "ohh god, it's a friendly telling off" moments before reading your second email haha
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<mmind00>
conchuod: hehe, I saw the v2 from yesterday with v1 being somewhat old, though didn't notice that the reviewed-by on v1 actually was from even later (today) :-D
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* mmind00
feels more grounded after messing up
<mmind00>
i.e. in hindsight I should've only ever carried the Reviewed-by over to v2 in that reply without adding further sentences :-D
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<geist>
lagash: it's even denser if you mark the all_bytes as static const
<geist>
though it ends up with more lds
<geist>
oh i see, because it can then precompute all those multiplies into separate constants
<geist>
which is i guess arguably worse than loading the single constant and then using sllis to compute the variants o fit
<conchuod>
ye mmind00 I think I saw Rob say he was on holiday which prob explains
<conchuod>
and so was I, so I thought I may have missed something
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