Re: [Qemu-devel] [PATCH 0/3] WHPX introduce changes for Windows Insider SDK 17110

[Justin Terry (VM)]

Hey Stefan,

Not trying to ignore you here. I have reached out to members of management on 
our side I just don’t have any responses yet on what we can do here. Will 
update as I learn more.

Thanks,
Justin Terry

> -----Original Message-----
> From: Stefan Weil <address@hidden>
> Sent: Thursday, January 17, 2019 12:38 PM
> To: Justin Terry (VM) <address@hidden>; address@hidden
> Cc: address@hidden; address@hidden; address@hidden
> Subject: Re: [Qemu-devel] [PATCH 0/3] WHPX introduce changes for
> Windows Insider SDK 17110
> 
> Am 14.03.2018 um 15:52 schrieb Justin Terry (VM) via Qemu-devel:
> > This change set fixes two breaking changes that were introduced in the
> > Windows Insider SDK 17110. First, a change to the WHvGetCapability
> > function decl to include the 'out' WrittenSizeInBytes. Second, changes
> > to the WHvSetPartitionProperty function decl and
> > WHV_PARTITION_PROPERTY structure to directly pass the PropertyCode at
> invocation.
> >
> > Lastly, it introduces a major performance improvement in
> > whpx_vcpu_post_run using the VpContext exit structure rather than
> > another round trip call to WHvGetVirtualProcessorRegisters to synchronize
> vp state.
> >
> > QEMU compiled against this SDK (17110+) is expected to work on all
> > Windows Insider Builds (17115+).
> >
> > Thanks,
> > Justin Terry
> 
> 
> Hi Justin,
> 
> as far as I know it still not possible to cross build a legal QEMU for Windows
> on a Linux machine due to the license limitations of the SDK which is needed.
> The header files needed for the QEMU build are "All rights reserved".
> 
> People often ask me to add WHPX support to the QEMU installer for
> Windows, but I have to tell them that I cannot do that currently.
> 
> This problem could be solved if the necessary header files were added to
> QEMU with a permissive license by someone who has the rights to do so.
> 
> Could you add WinHvEmulation.h and WinHvPlatform.h or am I allowed to
> make such files from the documentation at
> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs
> .microsoft.com%2F&amp;data=02%7C01%7Cjuterry%40microsoft.com%7Cae
> d2532cd05b4f2a5a0208d67cbba58f%7C72f988bf86f141af91ab2d7cd011db47%
> 7C1%7C0%7C636833542719466921&amp;sdata=%2FA7Kjkx5fnjMVnqezdmqi
> wgCZAFwoaNe2oCA%2BSdPbuo%3D&amp;reserved=0?
> 
> Thanks,
> Stefan Weil