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Re: [Qemu-devel] [RFC][PATCH 08/45] Introduce MSIMessage structure
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [RFC][PATCH 08/45] Introduce MSIMessage structure |
Date: |
Mon, 17 Oct 2011 14:04:05 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Mon, Oct 17, 2011 at 01:51:00PM +0200, Jan Kiszka wrote:
> On 2011-10-17 13:46, Michael S. Tsirkin wrote:
> > On Mon, Oct 17, 2011 at 11:27:42AM +0200, Jan Kiszka wrote:
> >> Will be used for generating and distributing MSI messages, both in
> >> emulation mode and under KVM.
> >>
> >> Signed-off-by: Jan Kiszka <address@hidden>
> >
> > I would add
> >
> > uint64_t msix_get_address(dev, vector)
> > uint64_t msix_get_data(dev, vector)
> >
> > and same for msi.
> >
> > this would minimise the changes while still making it
> > possible to avoid code duplication in kvm.
>
> I'm introducing msi[x]_message_from_vector for that purpose later on. Or
> what do you mean?
>
> Jan
It does not look like everyone actually wants the structure,
users seem to put it on stack and then immediately
unwrap it to get at the address/data.
So two accessorts get_data + get_address instead of one, will
remove the need to rework all code to use the structure.
> --
> Siemens AG, Corporate Technology, CT T DE IT 1
> Corporate Competence Center Embedded Linux
- Re: [Qemu-devel] [RFC][PATCH 17/45] qemu-kvm: Track MSIRoutingCache in KVM routing table, (continued)
[Qemu-devel] [RFC][PATCH 04/45] msi: Invoke msi/msix_reset from PCI core, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 25/45] qemu-kvm: Update MSI cache on kvm_msi_irqfd_set, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 20/45] qemu-kvm: msix: Only invoke msix_handle_mask_update on changes, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 14/45] qemu-kvm: Drop useless kvm_clear_gsi_routes, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 34/45] qemu-kvm: Factor out kvm_device_msi_assign, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 08/45] Introduce MSIMessage structure, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 16/45] qemu-kvm: Use MSIMessage and MSIRoutingCache, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 12/45] msi: Introduce MSIRoutingCache, Jan Kiszka, 2011/10/17