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xen-devel
Re: [Xen-devel][PATCH] Multiple HVM time device model support in HV
On 25 May 2006, at 03:51, Dong, Eddie wrote:
This patch targets to support multiple HVM time device models coming
soon.
1: Adopt an abstract layer for periodic time on top of different
HV time device models like PIT, RTC and ACPI time.
2: Extract VMM knowledge from PIT DM code and keep close with
qemu for easy maintain in future.
3: Use guest time (TSC) to drive PIT CLK that helps us to remove
a lot of extra logic previously introduced to convert from host time to
guest time.
4: Some cleanup for SMP code like move cache_tsc_offset to per
VP.
This patch is very large. Most of it seems to deal with this new
abstraction of 'periodic time'. What does that mean, and why is it
useful?
-- Keir
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