VFIO updates 2019-06-13
- Hide resizable BAR capability to prevent false guest resizing (Alex Williamson) - Allow relocation to fix bogus MSI-X hardware (Alex Williamson) - Condense IRQ setup into a common helper (Eric Auger) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) iQIcBAABAgAGBQJdAobbAAoJECObm247sIsiouEP/Arqjyb95Xo+GIQTsS8kQTyC iPD+7ufVzwkraarcg1ip1NHqdIZpa+VmO1LEZTEJZQyO9qV+etyb8DeU1CyS44eB +GpKjwtoHm1l9EulXRZ2Pa3FqCnw4S8L+A+Y66qgXV/brKXyyETK3UlbPOurYlWu y3SAGzjGFYNq1QqO2S//IEoMn7h0QaVdBOWRUJBAGTC3WZt9ivHlNfKYW3bMvWU0 0hpI4lC6Rum3+wtdKhK7OZc5nVgcqM7xFa3nsTfMeXEbtw3XHodomdkJODd2JFmA sj9dDF/QzW2XgLYX+FxRpBCl5DdvIpXgIjqGVunRH6ucaXmKr3mw5em9dQoIdbqE uu1y4Ca7+xicgLV86xQM1rohfWJYhW8U1YH0GFT/5L8ogzSrQsrWhUpAlWOsDTT3 ne9gYoI6X5vDnJYVkXiSiyDY4i/BbH58DwzFqQ+n4xKBewS5/N7dCyWNaGscb7fp 553fytm8JyKSMWMfJG+0oYHhfKlcWEpfFf1YKwWIerw+rllJmkkUTc5ILI88lq9D HMkXFWgyD1iB30zDmFZMfhnpOZlcbbGapxc7J2yJ5eXZ9av4tjPn95qc0tDzxROL kBLMeqSQGoRM7KTlrHT528pTDaucAI8lV/WMOfEYnuNzTkBTqDhl42sdYPbRbGse lH6x3BFUeMs9AYt7YJYt =m4eY -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/awilliam/tags/vfio-updates-20190613.0' into staging VFIO updates 2019-06-13 - Hide resizable BAR capability to prevent false guest resizing (Alex Williamson) - Allow relocation to fix bogus MSI-X hardware (Alex Williamson) - Condense IRQ setup into a common helper (Eric Auger) # gpg: Signature made Thu 13 Jun 2019 18:24:43 BST # gpg: using RSA key 239B9B6E3BB08B22 # gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>" [full] # gpg: aka "Alex Williamson <alex@shazbot.org>" [full] # gpg: aka "Alex Williamson <alwillia@redhat.com>" [full] # gpg: aka "Alex Williamson <alex.l.williamson@gmail.com>" [full] # Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B 8A90 239B 9B6E 3BB0 8B22 * remotes/awilliam/tags/vfio-updates-20190613.0: vfio/common: Introduce vfio_set_irq_signaling helper vfio/pci: Allow MSI-X relocation to fixup bogus PBA vfio/pci: Hide Resizable BAR capability Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
commit
5ec2eca83d
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@ -95,6 +95,84 @@ void vfio_mask_single_irqindex(VFIODevice *vbasedev, int index)
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ioctl(vbasedev->fd, VFIO_DEVICE_SET_IRQS, &irq_set);
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}
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static inline const char *action_to_str(int action)
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{
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switch (action) {
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case VFIO_IRQ_SET_ACTION_MASK:
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return "MASK";
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case VFIO_IRQ_SET_ACTION_UNMASK:
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return "UNMASK";
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case VFIO_IRQ_SET_ACTION_TRIGGER:
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return "TRIGGER";
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default:
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return "UNKNOWN ACTION";
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}
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}
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static const char *index_to_str(VFIODevice *vbasedev, int index)
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{
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if (vbasedev->type != VFIO_DEVICE_TYPE_PCI) {
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return NULL;
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}
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switch (index) {
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case VFIO_PCI_INTX_IRQ_INDEX:
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return "INTX";
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case VFIO_PCI_MSI_IRQ_INDEX:
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return "MSI";
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case VFIO_PCI_MSIX_IRQ_INDEX:
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return "MSIX";
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case VFIO_PCI_ERR_IRQ_INDEX:
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return "ERR";
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case VFIO_PCI_REQ_IRQ_INDEX:
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return "REQ";
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default:
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return NULL;
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}
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}
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int vfio_set_irq_signaling(VFIODevice *vbasedev, int index, int subindex,
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int action, int fd, Error **errp)
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{
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struct vfio_irq_set *irq_set;
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int argsz, ret = 0;
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const char *name;
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int32_t *pfd;
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argsz = sizeof(*irq_set) + sizeof(*pfd);
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irq_set = g_malloc0(argsz);
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irq_set->argsz = argsz;
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irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | action;
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irq_set->index = index;
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irq_set->start = subindex;
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irq_set->count = 1;
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pfd = (int32_t *)&irq_set->data;
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*pfd = fd;
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if (ioctl(vbasedev->fd, VFIO_DEVICE_SET_IRQS, irq_set)) {
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ret = -errno;
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}
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g_free(irq_set);
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if (!ret) {
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return 0;
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}
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error_setg_errno(errp, -ret, "VFIO_DEVICE_SET_IRQS failure");
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name = index_to_str(vbasedev, index);
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if (name) {
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error_prepend(errp, "%s-%d: ", name, subindex);
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} else {
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error_prepend(errp, "index %d-%d: ", index, subindex);
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}
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error_prepend(errp,
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"Failed to %s %s eventfd signaling for interrupt ",
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fd < 0 ? "tear down" : "set up", action_to_str(action));
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return ret;
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}
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/*
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* IO Port/MMIO - Beware of the endians, VFIO is always little endian
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*/
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220
hw/vfio/pci.c
220
hw/vfio/pci.c
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@ -114,9 +114,7 @@ static void vfio_intx_enable_kvm(VFIOPCIDevice *vdev, Error **errp)
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.gsi = vdev->intx.route.irq,
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.flags = KVM_IRQFD_FLAG_RESAMPLE,
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};
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struct vfio_irq_set *irq_set;
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int ret, argsz;
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int32_t *pfd;
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Error *err = NULL;
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if (vdev->no_kvm_intx || !kvm_irqfds_enabled() ||
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vdev->intx.route.mode != PCI_INTX_ENABLED ||
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@ -144,22 +142,10 @@ static void vfio_intx_enable_kvm(VFIOPCIDevice *vdev, Error **errp)
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goto fail_irqfd;
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}
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argsz = sizeof(*irq_set) + sizeof(*pfd);
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irq_set = g_malloc0(argsz);
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irq_set->argsz = argsz;
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irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_UNMASK;
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irq_set->index = VFIO_PCI_INTX_IRQ_INDEX;
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irq_set->start = 0;
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irq_set->count = 1;
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pfd = (int32_t *)&irq_set->data;
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*pfd = irqfd.resamplefd;
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ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set);
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g_free(irq_set);
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if (ret) {
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error_setg_errno(errp, -ret, "failed to setup INTx unmask fd");
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if (vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_INTX_IRQ_INDEX, 0,
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VFIO_IRQ_SET_ACTION_UNMASK,
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irqfd.resamplefd, &err)) {
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error_propagate(errp, err);
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goto fail_vfio;
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}
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@ -263,10 +249,10 @@ static void vfio_intx_update(PCIDevice *pdev)
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static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp)
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{
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uint8_t pin = vfio_pci_read_config(&vdev->pdev, PCI_INTERRUPT_PIN, 1);
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int ret, argsz, retval = 0;
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struct vfio_irq_set *irq_set;
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int32_t *pfd;
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Error *err = NULL;
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int32_t fd;
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int ret;
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if (!pin) {
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return 0;
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@ -293,27 +279,15 @@ static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp)
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error_setg_errno(errp, -ret, "event_notifier_init failed");
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return ret;
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}
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fd = event_notifier_get_fd(&vdev->intx.interrupt);
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qemu_set_fd_handler(fd, vfio_intx_interrupt, NULL, vdev);
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argsz = sizeof(*irq_set) + sizeof(*pfd);
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irq_set = g_malloc0(argsz);
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irq_set->argsz = argsz;
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irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_TRIGGER;
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irq_set->index = VFIO_PCI_INTX_IRQ_INDEX;
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irq_set->start = 0;
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irq_set->count = 1;
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pfd = (int32_t *)&irq_set->data;
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*pfd = event_notifier_get_fd(&vdev->intx.interrupt);
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qemu_set_fd_handler(*pfd, vfio_intx_interrupt, NULL, vdev);
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ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set);
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if (ret) {
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error_setg_errno(errp, -ret, "failed to setup INTx fd");
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qemu_set_fd_handler(*pfd, NULL, NULL, vdev);
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if (vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_INTX_IRQ_INDEX, 0,
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VFIO_IRQ_SET_ACTION_TRIGGER, fd, &err)) {
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error_propagate(errp, err);
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qemu_set_fd_handler(fd, NULL, NULL, vdev);
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event_notifier_cleanup(&vdev->intx.interrupt);
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retval = -errno;
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goto cleanup;
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return -errno;
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}
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vfio_intx_enable_kvm(vdev, &err);
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@ -324,11 +298,7 @@ static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp)
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vdev->interrupt = VFIO_INT_INTx;
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trace_vfio_intx_enable(vdev->vbasedev.name);
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cleanup:
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g_free(irq_set);
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return retval;
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return 0;
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}
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static void vfio_intx_disable(VFIOPCIDevice *vdev)
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@ -531,31 +501,19 @@ static int vfio_msix_vector_do_use(PCIDevice *pdev, unsigned int nr,
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error_report("vfio: failed to enable vectors, %d", ret);
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}
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} else {
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int argsz;
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struct vfio_irq_set *irq_set;
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int32_t *pfd;
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argsz = sizeof(*irq_set) + sizeof(*pfd);
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irq_set = g_malloc0(argsz);
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irq_set->argsz = argsz;
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irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
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VFIO_IRQ_SET_ACTION_TRIGGER;
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irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
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irq_set->start = nr;
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irq_set->count = 1;
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pfd = (int32_t *)&irq_set->data;
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Error *err = NULL;
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int32_t fd;
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if (vector->virq >= 0) {
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*pfd = event_notifier_get_fd(&vector->kvm_interrupt);
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fd = event_notifier_get_fd(&vector->kvm_interrupt);
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} else {
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*pfd = event_notifier_get_fd(&vector->interrupt);
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fd = event_notifier_get_fd(&vector->interrupt);
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}
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ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set);
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g_free(irq_set);
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if (ret) {
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error_report("vfio: failed to modify vector, %d", ret);
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if (vfio_set_irq_signaling(&vdev->vbasedev,
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VFIO_PCI_MSIX_IRQ_INDEX, nr,
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VFIO_IRQ_SET_ACTION_TRIGGER, fd, &err)) {
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error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
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}
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}
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@ -592,26 +550,10 @@ static void vfio_msix_vector_release(PCIDevice *pdev, unsigned int nr)
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* be re-asserted on unmask. Nothing to do if already using QEMU mode.
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*/
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if (vector->virq >= 0) {
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int argsz;
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struct vfio_irq_set *irq_set;
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int32_t *pfd;
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int32_t fd = event_notifier_get_fd(&vector->interrupt);
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argsz = sizeof(*irq_set) + sizeof(*pfd);
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irq_set = g_malloc0(argsz);
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irq_set->argsz = argsz;
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irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
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VFIO_IRQ_SET_ACTION_TRIGGER;
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irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
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irq_set->start = nr;
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irq_set->count = 1;
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pfd = (int32_t *)&irq_set->data;
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*pfd = event_notifier_get_fd(&vector->interrupt);
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ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set);
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g_free(irq_set);
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vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_MSIX_IRQ_INDEX, nr,
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VFIO_IRQ_SET_ACTION_TRIGGER, fd, NULL);
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}
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}
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@ -1533,7 +1475,7 @@ static void vfio_msix_early_setup(VFIOPCIDevice *vdev, Error **errp)
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if (vdev->vendor_id == PCI_VENDOR_ID_CHELSIO &&
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(vdev->device_id & 0xff00) == 0x5800) {
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msix->pba_offset = 0x1000;
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} else {
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} else if (vdev->msix_relo == OFF_AUTOPCIBAR_OFF) {
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error_setg(errp, "hardware reports invalid configuration, "
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"MSIX PBA outside of specified BAR");
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g_free(msix);
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@ -2119,6 +2061,7 @@ static void vfio_add_ext_cap(VFIOPCIDevice *vdev)
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case 0: /* kernel masked capability */
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case PCI_EXT_CAP_ID_SRIOV: /* Read-only VF BARs confuse OVMF */
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case PCI_EXT_CAP_ID_ARI: /* XXX Needs next function virtualization */
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case PCI_EXT_CAP_ID_REBAR: /* Can't expose read-only */
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trace_vfio_add_ext_cap_dropped(vdev->vbasedev.name, cap_id, next);
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break;
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default:
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|
@ -2637,10 +2580,8 @@ static void vfio_err_notifier_handler(void *opaque)
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*/
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static void vfio_register_err_notifier(VFIOPCIDevice *vdev)
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{
|
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int ret;
|
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int argsz;
|
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struct vfio_irq_set *irq_set;
|
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int32_t *pfd;
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Error *err = NULL;
|
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int32_t fd;
|
||||
|
||||
if (!vdev->pci_aer) {
|
||||
return;
|
||||
|
@ -2652,58 +2593,30 @@ static void vfio_register_err_notifier(VFIOPCIDevice *vdev)
|
|||
return;
|
||||
}
|
||||
|
||||
argsz = sizeof(*irq_set) + sizeof(*pfd);
|
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fd = event_notifier_get_fd(&vdev->err_notifier);
|
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qemu_set_fd_handler(fd, vfio_err_notifier_handler, NULL, vdev);
|
||||
|
||||
irq_set = g_malloc0(argsz);
|
||||
irq_set->argsz = argsz;
|
||||
irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER;
|
||||
irq_set->index = VFIO_PCI_ERR_IRQ_INDEX;
|
||||
irq_set->start = 0;
|
||||
irq_set->count = 1;
|
||||
pfd = (int32_t *)&irq_set->data;
|
||||
|
||||
*pfd = event_notifier_get_fd(&vdev->err_notifier);
|
||||
qemu_set_fd_handler(*pfd, vfio_err_notifier_handler, NULL, vdev);
|
||||
|
||||
ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set);
|
||||
if (ret) {
|
||||
error_report("vfio: Failed to set up error notification");
|
||||
qemu_set_fd_handler(*pfd, NULL, NULL, vdev);
|
||||
if (vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_ERR_IRQ_INDEX, 0,
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER, fd, &err)) {
|
||||
error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
|
||||
qemu_set_fd_handler(fd, NULL, NULL, vdev);
|
||||
event_notifier_cleanup(&vdev->err_notifier);
|
||||
vdev->pci_aer = false;
|
||||
}
|
||||
g_free(irq_set);
|
||||
}
|
||||
|
||||
static void vfio_unregister_err_notifier(VFIOPCIDevice *vdev)
|
||||
{
|
||||
int argsz;
|
||||
struct vfio_irq_set *irq_set;
|
||||
int32_t *pfd;
|
||||
int ret;
|
||||
Error *err = NULL;
|
||||
|
||||
if (!vdev->pci_aer) {
|
||||
return;
|
||||
}
|
||||
|
||||
argsz = sizeof(*irq_set) + sizeof(*pfd);
|
||||
|
||||
irq_set = g_malloc0(argsz);
|
||||
irq_set->argsz = argsz;
|
||||
irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER;
|
||||
irq_set->index = VFIO_PCI_ERR_IRQ_INDEX;
|
||||
irq_set->start = 0;
|
||||
irq_set->count = 1;
|
||||
pfd = (int32_t *)&irq_set->data;
|
||||
*pfd = -1;
|
||||
|
||||
ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set);
|
||||
if (ret) {
|
||||
error_report("vfio: Failed to de-assign error fd: %m");
|
||||
if (vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_ERR_IRQ_INDEX, 0,
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER, -1, &err)) {
|
||||
error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
|
||||
}
|
||||
g_free(irq_set);
|
||||
qemu_set_fd_handler(event_notifier_get_fd(&vdev->err_notifier),
|
||||
NULL, NULL, vdev);
|
||||
event_notifier_cleanup(&vdev->err_notifier);
|
||||
|
@ -2728,9 +2641,8 @@ static void vfio_register_req_notifier(VFIOPCIDevice *vdev)
|
|||
{
|
||||
struct vfio_irq_info irq_info = { .argsz = sizeof(irq_info),
|
||||
.index = VFIO_PCI_REQ_IRQ_INDEX };
|
||||
int argsz;
|
||||
struct vfio_irq_set *irq_set;
|
||||
int32_t *pfd;
|
||||
Error *err = NULL;
|
||||
int32_t fd;
|
||||
|
||||
if (!(vdev->features & VFIO_FEATURE_ENABLE_REQ)) {
|
||||
return;
|
||||
|
@ -2746,57 +2658,31 @@ static void vfio_register_req_notifier(VFIOPCIDevice *vdev)
|
|||
return;
|
||||
}
|
||||
|
||||
argsz = sizeof(*irq_set) + sizeof(*pfd);
|
||||
fd = event_notifier_get_fd(&vdev->req_notifier);
|
||||
qemu_set_fd_handler(fd, vfio_req_notifier_handler, NULL, vdev);
|
||||
|
||||
irq_set = g_malloc0(argsz);
|
||||
irq_set->argsz = argsz;
|
||||
irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER;
|
||||
irq_set->index = VFIO_PCI_REQ_IRQ_INDEX;
|
||||
irq_set->start = 0;
|
||||
irq_set->count = 1;
|
||||
pfd = (int32_t *)&irq_set->data;
|
||||
|
||||
*pfd = event_notifier_get_fd(&vdev->req_notifier);
|
||||
qemu_set_fd_handler(*pfd, vfio_req_notifier_handler, NULL, vdev);
|
||||
|
||||
if (ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set)) {
|
||||
error_report("vfio: Failed to set up device request notification");
|
||||
qemu_set_fd_handler(*pfd, NULL, NULL, vdev);
|
||||
if (vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_REQ_IRQ_INDEX, 0,
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER, fd, &err)) {
|
||||
error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
|
||||
qemu_set_fd_handler(fd, NULL, NULL, vdev);
|
||||
event_notifier_cleanup(&vdev->req_notifier);
|
||||
} else {
|
||||
vdev->req_enabled = true;
|
||||
}
|
||||
|
||||
g_free(irq_set);
|
||||
}
|
||||
|
||||
static void vfio_unregister_req_notifier(VFIOPCIDevice *vdev)
|
||||
{
|
||||
int argsz;
|
||||
struct vfio_irq_set *irq_set;
|
||||
int32_t *pfd;
|
||||
Error *err = NULL;
|
||||
|
||||
if (!vdev->req_enabled) {
|
||||
return;
|
||||
}
|
||||
|
||||
argsz = sizeof(*irq_set) + sizeof(*pfd);
|
||||
|
||||
irq_set = g_malloc0(argsz);
|
||||
irq_set->argsz = argsz;
|
||||
irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER;
|
||||
irq_set->index = VFIO_PCI_REQ_IRQ_INDEX;
|
||||
irq_set->start = 0;
|
||||
irq_set->count = 1;
|
||||
pfd = (int32_t *)&irq_set->data;
|
||||
*pfd = -1;
|
||||
|
||||
if (ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set)) {
|
||||
error_report("vfio: Failed to de-assign device request fd: %m");
|
||||
if (vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_REQ_IRQ_INDEX, 0,
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER, -1, &err)) {
|
||||
error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
|
||||
}
|
||||
g_free(irq_set);
|
||||
qemu_set_fd_handler(event_notifier_get_fd(&vdev->req_notifier),
|
||||
NULL, NULL, vdev);
|
||||
event_notifier_cleanup(&vdev->req_notifier);
|
||||
|
|
|
@ -107,26 +107,19 @@ static int vfio_set_trigger_eventfd(VFIOINTp *intp,
|
|||
eventfd_user_side_handler_t handler)
|
||||
{
|
||||
VFIODevice *vbasedev = &intp->vdev->vbasedev;
|
||||
struct vfio_irq_set *irq_set;
|
||||
int argsz, ret;
|
||||
int32_t *pfd;
|
||||
int32_t fd = event_notifier_get_fd(intp->interrupt);
|
||||
Error *err = NULL;
|
||||
int ret;
|
||||
|
||||
argsz = sizeof(*irq_set) + sizeof(*pfd);
|
||||
irq_set = g_malloc0(argsz);
|
||||
irq_set->argsz = argsz;
|
||||
irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_TRIGGER;
|
||||
irq_set->index = intp->pin;
|
||||
irq_set->start = 0;
|
||||
irq_set->count = 1;
|
||||
pfd = (int32_t *)&irq_set->data;
|
||||
*pfd = event_notifier_get_fd(intp->interrupt);
|
||||
qemu_set_fd_handler(*pfd, (IOHandler *)handler, NULL, intp);
|
||||
ret = ioctl(vbasedev->fd, VFIO_DEVICE_SET_IRQS, irq_set);
|
||||
if (ret < 0) {
|
||||
error_report("vfio: Failed to set trigger eventfd: %m");
|
||||
qemu_set_fd_handler(*pfd, NULL, NULL, NULL);
|
||||
qemu_set_fd_handler(fd, (IOHandler *)handler, NULL, intp);
|
||||
|
||||
ret = vfio_set_irq_signaling(vbasedev, intp->pin, 0,
|
||||
VFIO_IRQ_SET_ACTION_TRIGGER, fd, &err);
|
||||
if (ret) {
|
||||
error_reportf_err(err, VFIO_MSG_PREFIX, vbasedev->name);
|
||||
qemu_set_fd_handler(fd, NULL, NULL, NULL);
|
||||
}
|
||||
g_free(irq_set);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
@ -331,7 +324,6 @@ static void vfio_platform_eoi(VFIODevice *vbasedev)
|
|||
|
||||
static void vfio_start_eventfd_injection(SysBusDevice *sbdev, qemu_irq irq)
|
||||
{
|
||||
int ret;
|
||||
VFIOPlatformDevice *vdev = VFIO_PLATFORM_DEVICE(sbdev);
|
||||
VFIOINTp *intp;
|
||||
|
||||
|
@ -342,10 +334,7 @@ static void vfio_start_eventfd_injection(SysBusDevice *sbdev, qemu_irq irq)
|
|||
}
|
||||
assert(intp);
|
||||
|
||||
ret = vfio_set_trigger_eventfd(intp, vfio_intp_interrupt);
|
||||
if (ret) {
|
||||
error_report("vfio: failed to start eventfd signaling for IRQ %d: %m",
|
||||
intp->pin);
|
||||
if (vfio_set_trigger_eventfd(intp, vfio_intp_interrupt)) {
|
||||
abort();
|
||||
}
|
||||
}
|
||||
|
@ -362,25 +351,16 @@ static void vfio_start_eventfd_injection(SysBusDevice *sbdev, qemu_irq irq)
|
|||
*/
|
||||
static int vfio_set_resample_eventfd(VFIOINTp *intp)
|
||||
{
|
||||
int32_t fd = event_notifier_get_fd(intp->unmask);
|
||||
VFIODevice *vbasedev = &intp->vdev->vbasedev;
|
||||
struct vfio_irq_set *irq_set;
|
||||
int argsz, ret;
|
||||
int32_t *pfd;
|
||||
Error *err = NULL;
|
||||
int ret;
|
||||
|
||||
argsz = sizeof(*irq_set) + sizeof(*pfd);
|
||||
irq_set = g_malloc0(argsz);
|
||||
irq_set->argsz = argsz;
|
||||
irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_UNMASK;
|
||||
irq_set->index = intp->pin;
|
||||
irq_set->start = 0;
|
||||
irq_set->count = 1;
|
||||
pfd = (int32_t *)&irq_set->data;
|
||||
*pfd = event_notifier_get_fd(intp->unmask);
|
||||
qemu_set_fd_handler(*pfd, NULL, NULL, NULL);
|
||||
ret = ioctl(vbasedev->fd, VFIO_DEVICE_SET_IRQS, irq_set);
|
||||
g_free(irq_set);
|
||||
if (ret < 0) {
|
||||
error_report("vfio: Failed to set resample eventfd: %m");
|
||||
qemu_set_fd_handler(fd, NULL, NULL, NULL);
|
||||
ret = vfio_set_irq_signaling(vbasedev, intp->pin, 0,
|
||||
VFIO_IRQ_SET_ACTION_UNMASK, fd, &err);
|
||||
if (ret) {
|
||||
error_reportf_err(err, VFIO_MSG_PREFIX, vbasedev->name);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
@ -436,8 +416,6 @@ static void vfio_start_irqfd_injection(SysBusDevice *sbdev, qemu_irq irq)
|
|||
return;
|
||||
fail_vfio:
|
||||
kvm_irqchip_remove_irqfd_notifier(kvm_state, intp->interrupt, irq);
|
||||
error_report("vfio: failed to start eventfd signaling for IRQ %d: %m",
|
||||
intp->pin);
|
||||
abort();
|
||||
fail_irqfd:
|
||||
vfio_start_eventfd_injection(sbdev, irq);
|
||||
|
|
|
@ -166,6 +166,8 @@ void vfio_put_base_device(VFIODevice *vbasedev);
|
|||
void vfio_disable_irqindex(VFIODevice *vbasedev, int index);
|
||||
void vfio_unmask_single_irqindex(VFIODevice *vbasedev, int index);
|
||||
void vfio_mask_single_irqindex(VFIODevice *vbasedev, int index);
|
||||
int vfio_set_irq_signaling(VFIODevice *vbasedev, int index, int subindex,
|
||||
int action, int fd, Error **errp);
|
||||
void vfio_region_write(void *opaque, hwaddr addr,
|
||||
uint64_t data, unsigned size);
|
||||
uint64_t vfio_region_read(void *opaque,
|
||||
|
|
Loading…
Reference in a new issue