Ryzen issues on FreeBSD ? (with sort of workaround)

Pete French petefrench at ingresso.co.uk
Thu Jul 5 13:23:18 UTC 2018



On 05/07/2018 11:47, Konstantin Belousov wrote:
> Why do you state that they are saved/restored ?  What is the evidence ?


https://software.intel.com/en-us/blogs/2009/06/25/virtualization-and-performance-understanding-vm-exits

specificly...

3) "Save MSRs in the VM-exit MSR-store area."

and

5) "Load MSRs from the VM-exit MSR-load area."

but maybe thats not actyually true, I assumed it was given its an Intel 
document, but admittedly its not an actual specification.


> On VM the patch should be NOP, testing it is a waste of time IMO.


OK, will ignore that then. I am running the new patch on my workstation 
now - I still need the old patch for the other files, yes ?

-pete.


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