Re: [PATCH v2 0/6] KVM: arm64: VCPU preempted check support

2020-12-29 Thread yezengruan
On 2020/1/15 22:14, Marc Zyngier wrote: > On 2020-01-13 12:12, Will Deacon wrote: >> [+PeterZ] >> >> On Thu, Dec 26, 2019 at 09:58:27PM +0800, Zengruan Ye wrote: >>> This patch set aims to support the vcpu_is_preempted() functionality >>> under KVM/arm64, which allowing the guest to obtain the

Re: [PATCH v2 0/6] KVM: arm64: VCPU preempted check support

2020-12-16 Thread yezengruan
On 2020/1/15 22:14, Marc Zyngier wrote: > On 2020-01-13 12:12, Will Deacon wrote: >> [+PeterZ] >> >> On Thu, Dec 26, 2019 at 09:58:27PM +0800, Zengruan Ye wrote: >>> This patch set aims to support the vcpu_is_preempted() functionality >>> under KVM/arm64, which allowing the guest to obtain the

Re: [PATCH v2 0/6] KVM: arm64: VCPU preempted check support

2020-01-13 Thread Will Deacon
[+PeterZ] On Thu, Dec 26, 2019 at 09:58:27PM +0800, Zengruan Ye wrote: > This patch set aims to support the vcpu_is_preempted() functionality > under KVM/arm64, which allowing the guest to obtain the VCPU is > currently running or not. This will enhance lock performance on > overcommitted hosts

[PATCH v2 0/6] KVM: arm64: VCPU preempted check support

2019-12-26 Thread Zengruan Ye
This patch set aims to support the vcpu_is_preempted() functionality under KVM/arm64, which allowing the guest to obtain the VCPU is currently running or not. This will enhance lock performance on overcommitted hosts (more runnable VCPUs than physical CPUs in the system) as doing busy waits for