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Re: [RFC 0/3] acpi: cphp: add CPHP_GET_CPU_ID_CMD command to cpu hotplug
From: |
Laszlo Ersek |
Subject: |
Re: [RFC 0/3] acpi: cphp: add CPHP_GET_CPU_ID_CMD command to cpu hotplug MMIO interface |
Date: |
Fri, 11 Oct 2019 18:13:10 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 10/11/19 15:00, Michael S. Tsirkin wrote:
> On Fri, Oct 11, 2019 at 10:01:42AM +0200, Laszlo Ersek wrote:
[...]
>> ... I must admit: I didn't expect this, but now I've grown to *prefer*
>> the CPU hotplug register block!
>
> OK, send an ack then.
This RFC isn't mature enough for an ACK, but I like the direction, and
I've given ample feedback. I'm looking forward to v1.
When Igor posts v1, I plan to first write firmware code for deriving
"max_cpus" through the register block. For that, I only need the docs to
reflect reality *closely* (I've posted my own suggestions for the docs);
plus "max_cpus" is something I can put to use immediately.
Regarding the CPHP_GET_CPU_ID_CMD feature, I'll have to test that from
within the SMI handler. Thus, until my "final" ACK, it's going to take a
while. I'm OK if the QEMU patch set remains pending on the list meanwhile.
Igor -- can you please answer my questions in this thread? (Part of my
feedback has been questions.)
Thanks!
Laszlo
- Re: [RFC 3/3] acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command, (continued)
- Re: [RFC 0/3] acpi: cphp: add CPHP_GET_CPU_ID_CMD command to cpu hotplug MMIO interface, Igor Mammedov, 2019/10/11
- Re: [RFC 0/3] acpi: cphp: add CPHP_GET_CPU_ID_CMD command to cpu hotplug MMIO interface, Laszlo Ersek, 2019/10/11
- Re: [RFC 0/3] acpi: cphp: add CPHP_GET_CPU_ID_CMD command to cpu hotplug MMIO interface, Eduardo Habkost, 2019/10/10
- Re: [RFC 0/3] acpi: cphp: add CPHP_GET_CPU_ID_CMD command to cpu hotplug MMIO interface, Michael S. Tsirkin, 2019/10/10
- Re: [RFC 0/3] acpi: cphp: add CPHP_GET_CPU_ID_CMD command to cpu hotplug MMIO interface, Igor Mammedov, 2019/10/10