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[Xen-devel] PVH VCPU hotplug support v7?

Hi Boris,

I've modified your PVH VCPU hotplug support v6 patch series [1] to support HVM guests running _with_ a device model for XenServer's purposes. This is useful because it moves the vCPU hotplug handling out of QEMU and allows it to mostly be shared with PVH. It will also allow unplugging vCPUs (libxl currently only does cpu-add for upstream qemu).

Are you still planning on continuing with that patch series since your commit to Linux [2]?

[1] https://lists.xenproject.org/archives/html/xen-devel/2017-01/msg00060.html

commit 2a7197f02dddf1f9cee300bd12512375ed56524a
Author: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Date:   Mon Feb 6 10:58:05 2017 -0500

    xen/pvh: Enable CPU hotplug

    PVH guests don't (yet) receive ACPI hotplug interrupts and therefore
    need to monitor xenstore for CPU hotplug event.

    Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
    Reviewed-by: Juergen Gross <jgross@xxxxxxxx>

Ross Lagerwall

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