FN_VMB_CHANNEL_SET_INTERRUPT_LATENCY callback function

Description

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Guest VM updates to the outgoing monitor latency for MNF interrupts.

Parameters

Channel

A handle for the channel. Allocated by VmbChannelAllocate.

Latency

The desired monitor latency in 100ns units.

OriginalLatency

On success, set to the previous latency value.

Return value

Returns STATUS_SUCCESS if the operation succeeds, or an appropriate NTSTATUS error code otherwise.

Prototype

//Declaration

FN_VMB_CHANNEL_SET_INTERRUPT_LATENCY FnVmbChannelSetInterruptLatency;

// Definition

NTSTATUS FnVmbChannelSetInterruptLatency
(
    VMBCHANNEL Channel
    UINT16 Latency
    PUINT16 OriginalLatency
)
{...}

Remarks

This call is valid for opened channels, that is between the calls to EvtChannelOpened and EvtChannelClosed, inclusive.

[!IMPORTANT] This function is called through the VMBus Kernel Mode Client Library (KMCL) interface, provided by the Vmbkmcl.sys bus driver. This is a client function accessed from the KMCL_CLIENT_INTERFACE_V1 structure.

For more information, see the Remarks section of the KMCL_CLIENT_INTERFACE_V1.

See also