Re: [PATCH RFC 0/3] Support CPU hotplug for ARM64

2019-07-03 Thread Xiongfeng Wang
On 2019/7/4 14:04, Jia He wrote: > Hi Xiongfeng > > Sorry, I missed your latter mail, you used a emulated SCI interrupt Yes, I only used a emulated SCI interrupt. My colleague is working on the qemu part. He used the GED device in qemu. But there is still some other issues with the qemu and

Re: [PATCH RFC 0/3] Support CPU hotplug for ARM64

2019-07-03 Thread Jia He
Hi Xiongfeng Sorry, I missed your latter mail, you used a emulated SCI interrupt --- Cheers, Justin (Jia He) On 2019/7/4 11:26, Xiongfeng Wang wrote: Hi Justin, On 2019/7/4 11:00, Jia He wrote: Hi Xiongfeng It is a little bit awkful that I am also  investigating acpi based cpu hotplug issu

Re: [PATCH RFC 0/3] Support CPU hotplug for ARM64

2019-07-03 Thread Jia He
Hi Xiongfeng On 2019/7/4 11:26, Xiongfeng Wang wrote: Hi Justin, On 2019/7/4 11:00, Jia He wrote: Hi Xiongfeng It is a little bit awkful that I am also  investigating acpi based cpu hotplug issue silimar with your idea. My question is your purpose to implement the vcpu hotplug in arm64 qem

Re: [PATCH RFC 0/3] Support CPU hotplug for ARM64

2019-07-03 Thread Xiongfeng Wang
Hi Justin, On 2019/7/4 11:00, Jia He wrote: > Hi Xiongfeng > > It is a little bit awkful that I am also  investigating acpi based cpu > hotplug issue silimar with > > your idea. My question is your purpose to implement the vcpu hotplug in arm64 > qemu? Yes, my purpose is to implement the vcpu

Re: [PATCH RFC 0/3] Support CPU hotplug for ARM64

2019-07-03 Thread Jia He
Hi Xiongfeng It is a little bit awkful that I am also  investigating acpi based cpu hotplug issue silimar with your idea. My question is your purpose to implement the vcpu hotplug in arm64 qemu? Thanks for the ellaboration --- Cheers, Justin (Jia He) On 2019/6/28 19:13, Xiongfeng Wang wrot

Re: [PATCH RFC 0/3] Support CPU hotplug for ARM64

2019-06-28 Thread Xiongfeng Wang
Sorry, the third patch can't be applied to the lastest kernel. I will send another version and attach the method to test this patchset. On 2019/6/28 19:13, Xiongfeng Wang wrote: > This patchset mark all the GICC node in MADT as possible CPUs even though it > is disabled. But only those enabled GI

[PATCH RFC 0/3] Support CPU hotplug for ARM64

2019-06-28 Thread Xiongfeng Wang
This patchset mark all the GICC node in MADT as possible CPUs even though it is disabled. But only those enabled GICC node are marked as present CPUs. So that kernel will initialize some CPU related data structure in advance before the CPU is actually hot added into the system. This patchset also i