From: Valentine Sinitsyn <valentine.sinitsyn@gmail.com>
To: David kiarie <davidkiarie4@gmail.com>
Cc: Jan Kiszka <jan.kiszka@web.de>, qemu-devel@nongnu.org, mst@redhat.com
Subject: Re: [Qemu-devel] [RFC 2/4] hw/i386: Introduce AMD IOMMU
Date: Tue, 25 Aug 2015 12:43:21 +0500 [thread overview]
Message-ID: <55DC1C99.8010807@gmail.com> (raw)
In-Reply-To: <CABdVeAAvDOypUWT+weFN9QA0K+hnv+_dt-ppY0SofB7vh1GjNw@mail.gmail.com>
On 25.08.2015 12:41, David kiarie wrote:
> On Tue, Aug 25, 2015 at 10:31 AM, Valentine Sinitsyn
[...snip...]
>> The spec doesn't say anything about this, I checked it. IIRC, I came across
>> this behavior when submitted COMPLETION_WAIT command with interrupts off and
>> spin in a while() loop waiting for the mask to be written. The loop never
>> finished, but everything worked as intended if I removed COM_COMPLETION_INTR
>> for the command.
>
> Is this behaviour useful in any way ?I'll try to fix this in the next version.
I don't think it's useful. The reason I posted this question was to
check if this is a bug in silicon or intended behavior. If the latter,
I'd suggest to emulate it.
Valentine
next prev parent reply other threads:[~2015-08-25 7:43 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-24 23:19 [Qemu-devel] [RFC 0/4] AMD IOMMU David Kiarie
2015-08-24 23:19 ` [Qemu-devel] [RFC 1/4] hw/core: Prepare for introducing " David Kiarie
2015-08-24 23:19 ` [Qemu-devel] [RFC 2/4] hw/i386: Introduce " David Kiarie
2015-08-25 6:39 ` Valentine Sinitsyn
2015-08-25 7:25 ` David kiarie
2015-08-25 7:31 ` Valentine Sinitsyn
2015-08-25 7:41 ` David kiarie
2015-08-25 7:43 ` Valentine Sinitsyn [this message]
2015-08-25 7:44 ` David kiarie
2015-09-07 12:46 ` Valentine Sinitsyn
2015-09-09 7:30 ` David kiarie
2015-09-09 7:45 ` Valentine Sinitsyn
2015-09-09 7:59 ` David kiarie
2015-09-09 8:07 ` Valentine Sinitsyn
2015-09-09 8:12 ` David kiarie
2015-09-09 8:14 ` Valentine Sinitsyn
2015-09-09 8:31 ` David kiarie
2015-09-09 7:59 ` Michael S. Tsirkin
2015-09-09 8:04 ` Valentine Sinitsyn
2015-09-12 10:55 ` Valentine Sinitsyn
2015-08-24 23:19 ` [Qemu-devel] [RFC 3/4] hw/i386: Introduce IVRS for " David Kiarie
2015-08-24 23:19 ` [Qemu-devel] [RFC 4/4] hw/pci-host: Add AMD IOMMU emulation to q35 and PIIX David Kiarie
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