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Re: [Qemu-devel] Re: [PATCH] kvm: Prevent dynticks race condition for !C
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] Re: [PATCH] kvm: Prevent dynticks race condition for !CONFIG_IOTHREAD |
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Date: |
Wed, 26 Jan 2011 14:01:30 +0000 |
On Wed, Jan 26, 2011 at 1:56 PM, Jan Kiszka <address@hidden> wrote:
> Looks like this should also include SIGIO in case hpet is selected as
> host timer.
Yeah that can't hurt although since hpet is periodic we don't risk
forgetting to rearm the timer.
Can you explain the signalfd idea a little more? I'm not sure that
model would work for !CONFIG_IOTHREAD. Maybe if QEMU itself uses
signalfd but KVM sigmask is used to unblock the signals during guest
code execution (and a solution for TCG too).
Stefan