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Re: [Qemu-devel] [RFC][PATCH 22/45] qemu-kvm: msix: Fire mask notifier o
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [RFC][PATCH 22/45] qemu-kvm: msix: Fire mask notifier on global mask changes |
Date: |
Tue, 18 Oct 2011 14:40:04 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Mon, Oct 17, 2011 at 09:00:12PM +0200, Jan Kiszka wrote:
> On 2011-10-17 14:16, Michael S. Tsirkin wrote:
> > On Mon, Oct 17, 2011 at 11:27:56AM +0200, Jan Kiszka wrote:
> >> Also invoke the mask notifier if the global MSI-X mask is modified. For
> >> this purpose, we push the notifier call from the per-vector mask update
> >> to the central msix_handle_mask_update.
> >>
> >> Signed-off-by: Jan Kiszka <address@hidden>
> >
> > This is a bugfix, isn't it?
> > If yes it should be separated and put on -stable.
>
> Yep, will pull this to the front.
I'll apply this to qemu.git, no need to mix bugfixes
with features ...
> >
> >> ---
> >> hw/msix.c | 16 +++++++++-------
> >> 1 files changed, 9 insertions(+), 7 deletions(-)
> >>
> >> diff --git a/hw/msix.c b/hw/msix.c
> >> index 739b56f..247b255 100644
> >> --- a/hw/msix.c
> >> +++ b/hw/msix.c
> >> @@ -221,7 +221,15 @@ static bool msix_is_masked(PCIDevice *dev, int vector)
> >>
> >> static void msix_handle_mask_update(PCIDevice *dev, int vector)
> >> {
> >> - if (!msix_is_masked(dev, vector) && msix_is_pending(dev, vector)) {
> >> + bool masked = msix_is_masked(dev, vector);
> >> + int ret;
> >> +
> >> + if (dev->msix_mask_notifier) {
> >> + ret = dev->msix_mask_notifier(dev, vector,
> >> + msix_is_masked(dev, vector));
> >
> > Use 'masked' value here as well?
>
> Yes.
>
> Jan
>
- Re: [Qemu-devel] [RFC][PATCH 12/45] msi: Introduce MSIRoutingCache, (continued)
- [Qemu-devel] [RFC][PATCH 03/45] msi: Use msi/msix_present more consistently, Jan Kiszka, 2011/10/17
- [Qemu-devel] [RFC][PATCH 19/45] qemu-kvm: Factor out kvm_msi_irqfd_set, Jan Kiszka, 2011/10/17
- [Qemu-devel] [RFC][PATCH 21/45] qemu-kvm: msix: Don't fire notifier spuriously on set/unset, Jan Kiszka, 2011/10/17
- [Qemu-devel] [RFC][PATCH 02/45] msi: Guard msi_reset with msi_present, Jan Kiszka, 2011/10/17
- [Qemu-devel] [RFC][PATCH 22/45] qemu-kvm: msix: Fire mask notifier on global mask changes, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 31/45] qemu-kvm: Refactor kvm_deassign_irq to kvm_device_irq_deassign, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 29/45] pci-assign: Drop kvm_assigned_irq::host_irq initialization, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 24/45] qemu-kvm: msix: Don't handle mask updated while disabled, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 30/45] pci-assign: Rename assign_irq to assign_intx, Jan Kiszka, 2011/10/17
[Qemu-devel] [RFC][PATCH 23/45] qemu-kvm: Rework MSI-X mask notifier to generic MSI config notifiers, Jan Kiszka, 2011/10/17