Re: [PATCH V2 3/5] kvm/ppc/book3s_hv: Implement halt polling in the kvm_hv kernel module
From: David Matlack <dmatlack@google.com>
Date: 2016-07-11 17:26:52
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kvm
On Mon, Jul 11, 2016 at 10:07 AM, Paolo Bonzini [off-list ref] wrote:
On 11/07/2016 18:57, David Matlack wrote:quoted
On Mon, Jul 11, 2016 at 12:08 AM, Suraj Jitindar Singh [off-list ref] wrote:quoted
This patch introduces new halt polling functionality into the kvm_hv kernel module. When a vcore is idle it will poll for some period of time before scheduling itself out.Is there any way to reuse the existing halt-polling code? Having two copies risks them diverging over time.s/risks/guarantees/ :( Unfortunately, handling of the hardware threads in KVM PPC is a mess, and I don't think it's possible to remove the duplication.
Ah, ok. That's a shame.
Paolo