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authorAlex Williamson <alex.williamson@redhat.com>2018-06-05 08:23:17 -0600
committerAlex Williamson <alex.williamson@redhat.com>2018-06-05 08:23:17 -0600
commit469d02de993817dcf4430d08fdff92aef8352d8f (patch)
treeb68ab27a473aa68f93c0ce20e7ec2b8da10954d8 /hw/vfio
parentbcf3c3d029e73d54455e1d7a51177c37d668378c (diff)
vfio/quirks: Add quirk reset callback
Quirks can be self modifying, provide a hook to allow them to cleanup on device reset if desired. Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'hw/vfio')
-rw-r--r--hw/vfio/pci-quirks.c15
-rw-r--r--hw/vfio/pci.c2
-rw-r--r--hw/vfio/pci.h2
3 files changed, 19 insertions, 0 deletions
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index cc3a74ed99..f0947cbf15 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -1694,6 +1694,21 @@ void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr)
/*
* Reset quirks
*/
+void vfio_quirk_reset(VFIOPCIDevice *vdev)
+{
+ int i;
+
+ for (i = 0; i < PCI_ROM_SLOT; i++) {
+ VFIOQuirk *quirk;
+ VFIOBAR *bar = &vdev->bars[i];
+
+ QLIST_FOREACH(quirk, &bar->quirks, next) {
+ if (quirk->reset) {
+ quirk->reset(vdev, quirk);
+ }
+ }
+ }
+}
/*
* AMD Radeon PCI config reset, based on Linux:
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 4947fe39a2..65446fb428 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2207,6 +2207,8 @@ static void vfio_pci_post_reset(VFIOPCIDevice *vdev)
vdev->vbasedev.name, nr);
}
}
+
+ vfio_quirk_reset(vdev);
}
static bool vfio_pci_host_match(PCIHostDeviceAddress *addr, const char *name)
diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index 59ab7757a3..594a5bd005 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -29,6 +29,7 @@ typedef struct VFIOQuirk {
void *data;
int nr_mem;
MemoryRegion *mem;
+ void (*reset)(struct VFIOPCIDevice *vdev, struct VFIOQuirk *quirk);
} VFIOQuirk;
typedef struct VFIOBAR {
@@ -167,6 +168,7 @@ void vfio_bar_quirk_exit(VFIOPCIDevice *vdev, int nr);
void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr);
void vfio_setup_resetfn_quirk(VFIOPCIDevice *vdev);
int vfio_add_virt_caps(VFIOPCIDevice *vdev, Error **errp);
+void vfio_quirk_reset(VFIOPCIDevice *vdev);
extern const PropertyInfo qdev_prop_nv_gpudirect_clique;