[Qemu-devel] [PATCH v3 0/5] Improve PC RTC emulation

[Jan Kiszka]

The aim of this series is to allow using the emulated PC RTC (MC146818)
as a reliable time source for guests. This is particularly useful if the
host runs NTP or has otherwise access to an accurate clock while the
guest has not (no network, impossible to add an NTP implementation
etc.).

v3 is now a return to the roots: The command line switch refactoring to
-rtc is included again, this time using QemuOpts. This allows to keep
support for vm_clock-based RTC via '-rtc clock=vm'. But the default is
clock=host now.

Find this series also at git://git.kiszka.org/qemu.git queues/clock

Jan Kiszka (5):
      Rename QEMU_TIMER_* to QEMU_CLOCK_*
      win32: Drop dead dyntick timer code
      Introduce QEMU_CLOCK_HOST
      Refactor RTC command line switches
      Enable host-clock-based RTC

 hw/mc146818rtc.c |   38 +++++-----
 qemu-config.c    |   20 +++++
 qemu-config.h    |    1 +
 qemu-options.hx  |   53 ++++++++------
 qemu-timer.h     |    7 ++
 sysemu.h         |    2 +
 vl.c             |  216 ++++++++++++++++++++++++++++++++++++------------------
 7 files changed, 225 insertions(+), 112 deletions(-)