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authorMichael S. Tsirkin <mst@redhat.com>2012-12-12 16:10:02 +0200
committerMichael S. Tsirkin <mst@redhat.com>2012-12-26 11:49:28 +0200
commitbbef882cc1938fa5a6e1b36a50d79ce5c0cefb81 (patch)
tree8d07df207beb51343bc8804e4d0776720410ddf5 /hw/pci/msix.c
parent812d2594d558f7c4f95c99c8fc58adc47ab68eb3 (diff)
downloadhqemu-bbef882cc1938fa5a6e1b36a50d79ce5c0cefb81.zip
hqemu-bbef882cc1938fa5a6e1b36a50d79ce5c0cefb81.tar.gz
msi: add API to get notified about pending bit poll
Update all users. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci/msix.c')
-rw-r--r--hw/pci/msix.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/hw/pci/msix.c b/hw/pci/msix.c
index 073e22c..a285d18 100644
--- a/hw/pci/msix.c
+++ b/hw/pci/msix.c
@@ -191,6 +191,11 @@ static uint64_t msix_pba_mmio_read(void *opaque, hwaddr addr,
unsigned size)
{
PCIDevice *dev = opaque;
+ if (dev->msix_vector_poll_notifier) {
+ unsigned vector_start = addr * 8;
+ unsigned vector_end = MIN(addr + size * 8, dev->msix_entries_nr);
+ dev->msix_vector_poll_notifier(dev, vector_start, vector_end);
+ }
return pci_get_long(dev->msix_pba + addr);
}
@@ -513,7 +518,8 @@ static void msix_unset_notifier_for_vector(PCIDevice *dev, unsigned int vector)
int msix_set_vector_notifiers(PCIDevice *dev,
MSIVectorUseNotifier use_notifier,
- MSIVectorReleaseNotifier release_notifier)
+ MSIVectorReleaseNotifier release_notifier,
+ MSIVectorPollNotifier poll_notifier)
{
int vector, ret;
@@ -521,6 +527,7 @@ int msix_set_vector_notifiers(PCIDevice *dev,
dev->msix_vector_use_notifier = use_notifier;
dev->msix_vector_release_notifier = release_notifier;
+ dev->msix_vector_poll_notifier = poll_notifier;
if ((dev->config[dev->msix_cap + MSIX_CONTROL_OFFSET] &
(MSIX_ENABLE_MASK | MSIX_MASKALL_MASK)) == MSIX_ENABLE_MASK) {
@@ -531,6 +538,9 @@ int msix_set_vector_notifiers(PCIDevice *dev,
}
}
}
+ if (dev->msix_vector_poll_notifier) {
+ dev->msix_vector_poll_notifier(dev, 0, dev->msix_entries_nr);
+ }
return 0;
undo:
@@ -557,4 +567,5 @@ void msix_unset_vector_notifiers(PCIDevice *dev)
}
dev->msix_vector_use_notifier = NULL;
dev->msix_vector_release_notifier = NULL;
+ dev->msix_vector_poll_notifier = NULL;
}
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