[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [RFC PATCH 22/34] i386: Hyper-V VMBus ACPI DSDT entry
From: |
Roman Kagan |
Subject: |
Re: [Qemu-devel] [RFC PATCH 22/34] i386: Hyper-V VMBus ACPI DSDT entry |
Date: |
Wed, 7 Feb 2018 22:37:27 +0300 |
User-agent: |
Mutt/1.9.2 (2017-12-15) |
On Wed, Feb 07, 2018 at 12:05:23PM +0100, Paolo Bonzini wrote:
> On 06/02/2018 21:30, Roman Kagan wrote:
> > From: Andrey Smetanin <address@hidden>
> >
> > Guest OS uses ACPI to discover vmbus presence. Add a corresponding
> > entry to DSDT in case vmbus has been enabled.
> >
> > Experimentally Windows guests were found to require this entry to
> > include two IRQ resources, so this patch adds two semi-arbitrarily
> > chosen ones (7 and 13). This results, in particular, in parallel port
> > conflicting with vmbus.
> >
> > TODO: discover and use spare IRQs to avoid conflicts.
>
> Could they be level-triggered IRQs?
Dunno, I'll have to experiment. There appears to be no *use* for them,
only their presence seems to matter.
> If so you could reuse 10 and 11
> which are used by PCI INTx. Otherwise, the parallel port conflict is
> not a huge deal.
>
> > Signed-off-by: Evgeny Yakovlev <address@hidden>
>
> Somewhat messy SoB chain. :)
Yes that happens when the patches circulate within the team before being
posted outside. Will fix when submitting.
Thanks,
Roman.
[Qemu-devel] [RFC PATCH 23/34] i386: en/disable vmbus by a machine property, Roman Kagan, 2018/02/06
[Qemu-devel] [RFC PATCH 26/34] hv-scsi: limit the number of requests per notification, Roman Kagan, 2018/02/06
[Qemu-devel] [RFC PATCH 24/34] scsi: add Hyper-V/VMBus SCSI protocol definitions, Roman Kagan, 2018/02/06
[Qemu-devel] [RFC PATCH 20/34] vmbus: vmbus implementation, Roman Kagan, 2018/02/06