Re: [PATCH v2 3/4] KVM: arm64: vgic-v3: Implement MMIO-based LPI invalidation

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Apr 05, 2022 at 07:23:26PM +0100, Marc Zyngier wrote:
> Since GICv4.1, it has become legal for an implementation to advertise
> GICR_{INVLPIR,INVALLR,SYNCR} while having an ITS, allowing for a more
> efficient invalidation scheme (no guest command queue contention when
> multiple CPUs are generating invalidations).
> 
> Provide the invalidation registers as a primitive to their ITS
> counterpart. Note that we don't advertise them to the guest yet
> (the architecture allows an implementation to do this).
> 

I'll admit that this part tripped me up a bit, odd stuff.

> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>

Reviewed-by: Oliver Upton <oupton@xxxxxxxxxx>
_______________________________________________
kvmarm mailing list
kvmarm@xxxxxxxxxxxxxxxxxxxxx
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm



[Index of Archives]     [Linux KVM]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux