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[PATCH v3 0/3] Viridian changes for Hyper-V as a guest
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
- Date: Fri, 11 Sep 2026 10:12:41 +0100
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- Cc: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>, Paul Durrant <paul@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger@xxxxxxxxxxxxxx>, Teddy Astie <teddy.astie@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>
- Delivery-date: Fri, 11 Sep 2026 09:13:17 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Hi,
Here are some changes to get the existing Virdian enlightenments working
when running a Windows 11 guest with Hyper-V enabled
Hyper-V also depends on some unimplemented MSRs to boot, but that will
be addressed in a separate series.
Thanks,
Ross
Ross Lagerwall (3):
x86/viridian: Workaround Hyper-V GP fault writing to MSR
x86/viridian: Implement synthetic timer direct mode
tools/libxl: Add support for Viridian stimer direct mode
docs/man/xl.cfg.5.pod.in | 5 ++++
tools/include/libxl.h | 6 ++++
tools/libs/light/libxl_types.idl | 1 +
tools/libs/light/libxl_x86.c | 5 ++++
xen/arch/x86/hvm/viridian/synic.c | 9 ++++--
xen/arch/x86/hvm/viridian/time.c | 44 ++++++++++++++++++++++++----
xen/arch/x86/hvm/viridian/viridian.c | 3 ++
xen/include/public/hvm/params.h | 7 ++++-
8 files changed, 71 insertions(+), 9 deletions(-)
--
2.53.0
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