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[V2,0/7] x86/kvm: RCU/context tracking and instrumentation protections

Message ID 20200708195153.746357686@linutronix.de (mailing list archive)
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Series x86/kvm: RCU/context tracking and instrumentation protections | expand

Message

Thomas Gleixner July 8, 2020, 7:51 p.m. UTC 
Folks,

this is a rebased and adopted version of the original series which is
available here:

     https://lore.kernel.org/r/20200519203128.773151484@linutronix.de
 
It deals with the RCU and context tracking state and the protection against
instrumentation in sensitive places:

  - Placing the guest_enter/exit() calls at the correct place

  - Moving the sensitive VMENTER/EXIT code into the non-instrumentable code
    section.

  - Fixup the tracing code to comply with the non-instrumentation rules

  - Use native functions to access CR2 and the GS base MSR in the critical
    code pathes to prevent them from being instrumented.

Thanks,

	tglx

Comments

Paolo Bonzini July 8, 2020, 8:28 p.m. UTC | #1 
On 08/07/20 21:51, Thomas Gleixner wrote:
> Folks,
> 
> this is a rebased and adopted version of the original series which is
> available here:
> 
>      https://lore.kernel.org/r/20200519203128.773151484@linutronix.de
>  
> It deals with the RCU and context tracking state and the protection against
> instrumentation in sensitive places:
> 
>   - Placing the guest_enter/exit() calls at the correct place
> 
>   - Moving the sensitive VMENTER/EXIT code into the non-instrumentable code
>     section.
> 
>   - Fixup the tracing code to comply with the non-instrumentation rules
> 
>   - Use native functions to access CR2 and the GS base MSR in the critical
>     code pathes to prevent them from being instrumented.
> 
> Thanks,
> 
> 	tglx
> 

Queued, thanks.

Paolo