Re: [libvirt] [PATCHv3 3/3] qemu: hyperv: Add support for timer enlightenments

Add a new <timer> for the HyperV reference time counter enlightenment and the iTSC reference page for Windows guests. This feature provides a paravirtual approach to track timer events for the guest (similar to kvmclock) with the option to use real hardware clock on systems with a iTSC with compensation across various hosts.

--- docs/formatdomain.html.in | 7 ++++- docs/schemas/domaincommon.rng | 5 +++- src/conf/domain_conf.c | 6 +++-- src/conf/domain_conf.h | 1 + src/qemu/qemu_command.c | 30 ++++++++++++---------- .../qemuxml2argv-clock-timer-hyperv-rtc.args | 5 ++++ .../qemuxml2argv-clock-timer-hyperv-rtc.xml | 26 +++++++++++++++++++ tests/qemuxml2argvtest.c | 1 + tests/qemuxml2xmltest.c | 1 + 9 files changed, 65 insertions(+), 17 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-clock-timer-hyperv-rtc.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-clock-timer-hyperv-rtc.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index fd02864..64dd16a 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1367,7 +1367,12 @@ being modified, and can be one of "platform" (currently unsupported), "hpet" (libxl, xen, qemu), "kvmclock" (qemu), - "pit" (qemu), "rtc" (qemu), or "tsc" (libxl). + "pit" (qemu), "rtc" (qemu), "tsc" (libxl) or "hypervclock" + (qemu - <span class="since">since 1.2.2</span>). + + The <code>hypervclock</code> timer adds support for the + reference time counter and the reference TSC page feature