From: "Michael S. Tsirkin" <mst@redhat.com> To: qemu-devel@nongnu.org, avi@redhat.com, kvm@vger.kernel.org, aliguori@us.ibm.com, kwolf@redhat.com Subject: [PATCHv3 3/3] qemu/virtio: mark msi vectors used on load Date: Sun, 5 Jul 2009 13:24:41 +0300 [thread overview] Message-ID: <20090705102441.GC3833@redhat.com> (raw) In-Reply-To: <cover.1246782566.git.mst@redhat.com> Which msi vectors are used controlled by the guest and so needs to be restored on load. Do this for msi vectors used by the virtio device. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- hw/msix.c | 1 + hw/virtio-pci.c | 6 ++++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/hw/msix.c b/hw/msix.c index 98c62a5..46925d9 100644 --- a/hw/msix.c +++ b/hw/msix.c @@ -301,6 +301,7 @@ void msix_load(PCIDevice *dev, QEMUFile *f) if (!dev->cap_present & QEMU_PCI_CAP_MSIX) return; + msix_free_irq_entries(dev); qemu_get_buffer(f, dev->msix_table_page, n * MSIX_ENTRY_SIZE); qemu_get_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING, (n + 7) / 8); } diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c index f7da503..66c779e 100644 --- a/hw/virtio-pci.c +++ b/hw/virtio-pci.c @@ -129,8 +129,10 @@ static int virtio_pci_load_config(void * opaque, QEMUFile *f) if (ret) return ret; msix_load(&proxy->pci_dev, f); - if (msix_present(&proxy->pci_dev)) + if (msix_present(&proxy->pci_dev)) { qemu_get_be16s(f, &proxy->vdev->config_vector); + return msix_vector_use(&proxy->pci_dev, proxy->vdev->config_vector); + } return 0; } @@ -142,7 +144,7 @@ static int virtio_pci_load_queue(void * opaque, int n, QEMUFile *f) return 0; qemu_get_be16s(f, &vector); virtio_queue_set_vector(proxy->vdev, n, vector); - return 0; + return msix_vector_use(&proxy->pci_dev, vector); } static void virtio_pci_reset(void *opaque) -- 1.6.2.2
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com> To: qemu-devel@nongnu.org, avi@redhat.com, kvm@vger.kernel.org, aliguori@us.ibm.com, kwolf@redhat.com Subject: [Qemu-devel] [PATCHv3 3/3] qemu/virtio: mark msi vectors used on load Date: Sun, 5 Jul 2009 13:24:41 +0300 [thread overview] Message-ID: <20090705102441.GC3833@redhat.com> (raw) In-Reply-To: <cover.1246782566.git.mst@redhat.com> Which msi vectors are used controlled by the guest and so needs to be restored on load. Do this for msi vectors used by the virtio device. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- hw/msix.c | 1 + hw/virtio-pci.c | 6 ++++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/hw/msix.c b/hw/msix.c index 98c62a5..46925d9 100644 --- a/hw/msix.c +++ b/hw/msix.c @@ -301,6 +301,7 @@ void msix_load(PCIDevice *dev, QEMUFile *f) if (!dev->cap_present & QEMU_PCI_CAP_MSIX) return; + msix_free_irq_entries(dev); qemu_get_buffer(f, dev->msix_table_page, n * MSIX_ENTRY_SIZE); qemu_get_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING, (n + 7) / 8); } diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c index f7da503..66c779e 100644 --- a/hw/virtio-pci.c +++ b/hw/virtio-pci.c @@ -129,8 +129,10 @@ static int virtio_pci_load_config(void * opaque, QEMUFile *f) if (ret) return ret; msix_load(&proxy->pci_dev, f); - if (msix_present(&proxy->pci_dev)) + if (msix_present(&proxy->pci_dev)) { qemu_get_be16s(f, &proxy->vdev->config_vector); + return msix_vector_use(&proxy->pci_dev, proxy->vdev->config_vector); + } return 0; } @@ -142,7 +144,7 @@ static int virtio_pci_load_queue(void * opaque, int n, QEMUFile *f) return 0; qemu_get_be16s(f, &vector); virtio_queue_set_vector(proxy->vdev, n, vector); - return 0; + return msix_vector_use(&proxy->pci_dev, vector); } static void virtio_pci_reset(void *opaque) -- 1.6.2.2
next prev parent reply other threads:[~2009-07-05 10:25 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <cover.1246782566.git.mst@redhat.com> 2009-07-05 10:24 ` [PATCHv3 1/3] qemu/msi: fix segfault in msix_save Michael S. Tsirkin 2009-07-05 10:24 ` [Qemu-devel] " Michael S. Tsirkin 2009-07-05 10:45 ` Stuart Brady 2009-07-05 19:47 ` Michael S. Tsirkin 2009-07-05 20:12 ` Blue Swirl 2009-07-05 10:46 ` Blue Swirl 2009-07-05 10:46 ` Blue Swirl 2009-07-05 11:10 ` Michael S. Tsirkin 2009-07-05 11:10 ` Michael S. Tsirkin 2009-07-05 10:24 ` [PATCHv3 2/3] qemu/virtio: remove control vector save Michael S. Tsirkin 2009-07-05 10:24 ` [Qemu-devel] " Michael S. Tsirkin 2009-07-05 10:24 ` Michael S. Tsirkin [this message] 2009-07-05 10:24 ` [Qemu-devel] [PATCHv3 3/3] qemu/virtio: mark msi vectors used on load Michael S. Tsirkin
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