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| author | Michael S. Tsirkin <mst@redhat.com> | 2016-02-13 20:50:50 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-02-16 12:05:18 +0200 |
| commit | e1e4bf225236a2aea99bedee5a5f7e764841616a (patch) | |
| tree | da9dffcf65bd08dfcfb01e2e05be680ae8921cb1 /hw/pci/msix.c | |
| parent | e5157e313cd9c2d57f28873318d0bb29c77a9b1a (diff) | |
| download | qemu-e1e4bf225236a2aea99bedee5a5f7e764841616a.zip qemu-e1e4bf225236a2aea99bedee5a5f7e764841616a.tar.gz qemu-e1e4bf225236a2aea99bedee5a5f7e764841616a.tar.bz2 | |
msix: fix msix_vector_masked
commit 428c3ece97179557f2753071fb0ca97a03437267 ("fix MSI injection on Xen")
inadvertently enabled the xen-specific logic unconditionally.
Limit it to only when xen is enabled.
Additionally, msix data should be read with pci_get_log
since the format is pci little-endian.
Reported-by: "Daniel P. Berrange" <berrange@redhat.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci/msix.c')
| -rw-r--r-- | hw/pci/msix.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/pci/msix.c b/hw/pci/msix.c index eb4ef11..537fdba 100644 --- a/hw/pci/msix.c +++ b/hw/pci/msix.c @@ -80,10 +80,10 @@ static void msix_clr_pending(PCIDevice *dev, int vector) static bool msix_vector_masked(PCIDevice *dev, unsigned int vector, bool fmask) { unsigned offset = vector * PCI_MSIX_ENTRY_SIZE; - uint32_t *data = (uint32_t *)&dev->msix_table[offset + PCI_MSIX_ENTRY_DATA]; + uint8_t *data = &dev->msix_table[offset + PCI_MSIX_ENTRY_DATA]; /* MSIs on Xen can be remapped into pirqs. In those cases, masking * and unmasking go through the PV evtchn path. */ - if (xen_is_pirq_msi(*data)) { + if (xen_enabled() && xen_is_pirq_msi(pci_get_long(data))) { return false; } return fmask || dev->msix_table[offset + PCI_MSIX_ENTRY_VECTOR_CTRL] & |