From: "Michael S. Tsirkin" <mst@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
kvm@vger.kernel.org, Alex Williamson <alex.williamson@redhat.com>
Subject: Re: [PATCH 0/4 v9] MSI-X MMIO support for KVM
Date: Tue, 6 Sep 2011 11:12:48 +0300 [thread overview]
Message-ID: <20110906081247.GE13286@redhat.com> (raw)
In-Reply-To: <4E65D149.1070807@redhat.com>
On Tue, Sep 06, 2011 at 10:52:41AM +0300, Avi Kivity wrote:
> >
> >BTW, the same is also true for that optional per-vector masking of
> >legacy MSI. Are there devices in the field that actually support this? I
> >haven't found one so far and tend to consider this feature not worth
> >implementing.
>
> Don't know. I don't like implementing features on the basis of bug
> reports, though. On the other hand we can't really test it without
> a real device.
Linux will use this capability if present. So
we could add support for an emulated device (e.g. e1000),
then test with nested virt once iommu emulation lands :)
--
MST
next prev parent reply other threads:[~2011-09-06 8:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-18 8:53 [PATCH 0/4 v9] MSI-X MMIO support for KVM Sheng Yang
2011-02-18 8:53 ` [PATCH 1/4] KVM: Move struct kvm_io_device to kvm_host.h Sheng Yang
2011-02-18 8:53 ` [PATCH 2/4] KVM: Add kvm_io_ext_data to IO handler Sheng Yang
2011-02-18 8:53 ` [PATCH 3/4] KVM: Emulate MSI-X table in kernel Sheng Yang
2011-02-18 8:53 ` [PATCH 4/4] KVM: Add documents for MSI-X MMIO API Sheng Yang
2011-02-22 18:08 ` [PATCH 0/4 v9] MSI-X MMIO support for KVM Marcelo Tosatti
2011-09-01 11:27 ` Jan Kiszka
2011-09-06 7:52 ` Avi Kivity
2011-09-06 8:12 ` Michael S. Tsirkin [this message]
2011-09-06 8:36 ` Jan Kiszka
2011-09-06 8:46 ` Sasha Levin
2011-09-06 8:49 ` Jan Kiszka
2011-09-06 9:00 ` Sasha Levin
2011-09-06 9:05 ` Jan Kiszka
2011-09-06 9:16 ` Sasha Levin
2011-09-06 9:30 ` Michael S. Tsirkin
2011-09-06 8:36 ` Jan Kiszka
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