From: Avi Kivity <avi@redhat.com>
To: Sheng Yang <sheng@linux.intel.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH 3/3] KVM: Enable MSI-X for KVM assigned device
Date: Wed, 11 Feb 2009 14:48:55 +0200 [thread overview]
Message-ID: <4992C937.2090708@redhat.com> (raw)
In-Reply-To: <1234339731-3195-4-git-send-email-sheng@linux.intel.com>
Sheng Yang wrote:
> This patch finally enable MSI-X.
>
> What we need for MSI-X:
> 1. Intercept one page in MMIO region of device. So that we can get guest desired
> MSI-X table and set up the real one. Now this have been done by guest, and
> transfer to kernel using ioctl KVM_SET_MSIX_NR and KVM_SET_MSIX_ENTRY.
>
>
Looking at the patch, you're doing that in userspace. Good.
> 2. The PCI spec allowed to change MSI-X table dynamically. That means, the OS
> can enable MSI-X, then mask one MSI-X entry, modify it, and unmask it. The patch
> didn't support this, and Linux also don't work in this way.
>
What about Windows?
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-02-11 12:48 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-11 8:08 [PATCH 0/3 v2] MSI-X enabling Sheng Yang
2009-02-11 8:08 ` [PATCH 1/3] KVM: Ioctls for init MSI-X entry Sheng Yang
2009-02-11 12:44 ` Avi Kivity
2009-02-12 6:28 ` Sheng Yang
2009-02-12 10:07 ` Sheng Yang
2009-02-12 18:46 ` Marcelo Tosatti
2009-02-16 3:18 ` Sheng Yang
2009-02-16 5:49 ` Sheng Yang
2009-02-16 23:23 ` Marcelo Tosatti
2009-02-17 1:35 ` Sheng Yang
2009-02-17 1:36 ` Sheng Yang
2009-02-11 8:08 ` [PATCH 2/3] KVM: Add gsi_msg_pending_bitmap for MSI-X Sheng Yang
2009-02-12 19:51 ` Marcelo Tosatti
2009-02-13 3:37 ` Sheng Yang
2009-02-13 17:10 ` Marcelo Tosatti
2009-02-17 18:09 ` Avi Kivity
2009-02-18 1:33 ` Sheng Yang
2009-02-11 8:08 ` [PATCH 3/3] KVM: Enable MSI-X for KVM assigned device Sheng Yang
2009-02-11 12:48 ` Avi Kivity [this message]
2009-02-12 6:03 ` Sheng Yang
2009-02-12 20:40 ` Marcelo Tosatti
2009-02-13 5:29 ` Sheng Yang
2009-02-13 17:13 ` Marcelo Tosatti
-- strict thread matches above, loose matches on Subject: below --
2009-02-18 9:44 [PATCH 0/3 v3] MSI-X enabling Sheng Yang
2009-02-18 9:44 ` [PATCH 3/3] KVM: Enable MSI-X for KVM assigned device Sheng Yang
2009-02-18 10:45 ` Avi Kivity
2009-02-18 12:24 ` Sheng Yang
2009-02-18 12:36 ` Avi Kivity
2009-02-18 12:52 ` Sheng Yang
2009-02-25 9:22 [PATCH 0/3 v4][Resend] MSI-X enabling Sheng Yang
2009-02-25 9:22 ` [PATCH 3/3] KVM: Enable MSI-X for KVM assigned device Sheng Yang
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