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Re: [Qemu-devel] [PATCH v3 0/4] Introduce attributes for timers subsyste


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH v3 0/4] Introduce attributes for timers subsystem and remove QEMU_CLOCK_VIRTUAL_EXT clock type
Date: Fri, 11 Jan 2019 11:25:38 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1

On 10/01/19 14:30, Pavel Dovgalyuk wrote:
> Now timerlist_deadline_ns uses all virtual timers for deadline calculation 
> (including external
> ones).
> qemu_start_warp_timer uses the deadline for setting warp timer (which should 
> be deterministic).

Can you introduce a variant of qemu_clock_deadline_ns_all that ignores
external timers, and use it in qemu_start_warp_timer?

timerlist_deadline_ns can be made static, so adding a bool argument to
it is not a big issue for API cleanliness.

In fact, qemu_clock_deadline_ns_all is only ever used with
QEMU_CLOCK_VIRTUAL, so you could also change it to

uint64_t virtual_clock_deadline_ns(bool include_external);

Paolo



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