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Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status info
From: |
Gleb Natapov |
Subject: |
Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information. |
Date: |
Mon, 30 Jun 2008 16:26:52 +0300 |
On Sun, Jun 29, 2008 at 11:49:07PM +0300, Gleb Natapov wrote:
> On Sun, Jun 29, 2008 at 09:34:08PM +0100, Paul Brook wrote:
> > > The model takes into account that not all interrupt controller are
> > > capable to detect missed interrupt (it is possible that there is no
> > > interrupt controller at all). In this case irq function should
> > > return one and everything will fall back to how it works now.
> >
> > On a related note the correct way to fix this is "-icount auto".
> > You should make sure that your hacks are not enabled when we have a
> > realistic
> > virtual timebase.
> >
> Can you educate me what "-icount auto" is? Quick grep in qemu tree shows
> nothing.
>
I forgot to rebase my branch that is why grep showed nothing ;) But
there is no much documentation about virtual time base. I can't see why
this hack cannot coexist with virtual time base. If virtual time base
somehow guaranties that interrupts will never be lost then qemu_irq_rase()
will never return zero and the hack will be as good as disabled.
--
Gleb.
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., (continued)
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Paul Brook, 2008/06/29
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Gleb Natapov, 2008/06/29
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Paul Brook, 2008/06/29
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Gleb Natapov, 2008/06/29
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Paul Brook, 2008/06/29
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Gleb Natapov, 2008/06/29
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information.,
Gleb Natapov <=
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Paul Brook, 2008/06/30
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Gleb Natapov, 2008/06/30
- Re: [Qemu-devel] [PATCH 1/3] Change qemu_set_irq() to return status information., Paul Brook, 2008/06/30
- [Qemu-devel] Re: [PATCH 1/3] Change qemu_set_irq() to return status information., Jan Kiszka, 2008/06/29
- Re: [Qemu-devel] Re: [PATCH 1/3] Change qemu_set_irq() to return status information., Paul Brook, 2008/06/29
- Re: [Qemu-devel] Re: [PATCH 1/3] Change qemu_set_irq() to return status information., Dor Laor, 2008/06/29
- Re: [Qemu-devel] Re: [PATCH 1/3] Change qemu_set_irq() to return status information., Jan Kiszka, 2008/06/29
- Re: [Qemu-devel] Re: [PATCH 1/3] Change qemu_set_irq() to return status information., Paul Brook, 2008/06/29
- [Qemu-devel] Re: [PATCH 1/3] Change qemu_set_irq() to return status information., Gleb Natapov, 2008/06/30
[Qemu-devel] [PATCH 2/3] Fix time drift problem under high load when PIT is in use., Gleb Natapov, 2008/06/29