SPRR/GXF emulation for the HV - #643
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single nit for for the preparation changes. Feel free to open a separate PR for those so we can get them out of the way.
I glanced so far only at the SPRR/GXF emulation itself
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Doing this under the big lock is dumb and wastes a lot of CPU cycles since XNU churns on these register for every single genter/gexit. Signed-off-by: Sven Peter <sven@svenpeter.dev>
Doing this under the big lock is also dumb because this just touches local CPU states and there's nothing to sychronize against other cores. Signed-off-by: Sven Peter <sven@svenpeter.dev>
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