HvCallFlushVirtualAddressSpaceEx.md

title	description	keywords	author	ms.author	ms.date	ms.topic
HvCallFlushVirtualAddressSpaceEx	HvCallFlushVirtualAddressSpaceEx hypercall	hyper-v	alexgrest	hvdev	10/15/2020	reference

HvCallFlushVirtualAddressSpaceEx

The HvCallFlushVirtualAddressSpaceEx hypercall is similar to HvCallFlushVirtualAddressSpace, but can take a variably-sized sparse VP set as an input.

The following checks should be used to infer the availability of this hypercall:

• ExProcessorMasks must be indicated via CPUID leaf 0x40000004.

Interface

HV_STATUS
HvCallFlushVirtualAddressSpaceEx(
   _In_ HV_ADDRESS_SPACE_ID AddressSpace,
   _In_ HV_FLUSH_FLAGS Flags,
   _In_ HV_VP_SET ProcessorSet
   );

Call Code

0x0013 (Simple)

Input Parameters

Name	Offset	Size	Information Provided
AddressSpace	0	8	Specifies an address space ID (a CR3 value).
Flags	8	8	Set of flag bits that modify the operation of the flush.
ProcessorSet	16	Variable	Processor set indicating which processors should be affected by the flush operation.

See also

HV_VP_SET