Re: [Xen-devel] [PATCH V3 2/3] xen/vm_event: Support for guest-requested events

["Lengyel, Tamas" <tlengyel@xxxxxxxxxxx>]

On Mon, Jul 6, 2015 at 11:51 AM, Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx> wrote:

Added support for a new class of vm_events: VM_EVENT_REASON_REQUEST,
sent via HVMOP_request_vm_event. The guest can request that a
generic vm_event (containing only the vm_event-filled guest registers
as information) be sent to userspace by setting up the correct
registers and doing a VMCALL. For example, for a 32-bit guest, this
means: EAX = 34 (hvmop), EBX = 24 (HVMOP_guest_request_vm_event),
ECX = 0 (NULL required for the hypercall parameter, reserved).

Signed-off-by: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>

The vm_event components LGTM.

Acked-by: Tamas K Lengyel <tlengyel@xxxxxxxxxxx>

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