On 5/12/22 18:31, David Woodhouse wrote:
From: Joao Martins <joao.m.mart...@oracle.com>
Such that PCI passthrough devices work for Xen emulated guests.
Signed-off-by: Joao Martins <joao.m.mart...@oracle.com>
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
hw/i386/xen/xen_platform.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c
index 710039851a..ae0a21f5bf 100644
--- a/hw/i386/xen/xen_platform.c
+++ b/hw/i386/xen/xen_platform.c
@@ -109,12 +109,25 @@ static void log_writeb(PCIXenPlatformState *s, char val)
#define _UNPLUG_NVME_DISKS 3
#define UNPLUG_NVME_DISKS (1u << _UNPLUG_NVME_DISKS)
+static bool pci_device_is_passthrough(PCIDevice *d)
+{
+ if (!strcmp(d->name, "xen-pci-passthrough")) {
The 'QOM way' to do this check is:
if (object_dynamic_cast(OBJECT(d), TYPE_XEN_PT_DEVICE)) {
+ return true;
+ }
+
+ if (xen_mode == XEN_EMULATE && !strcmp(d->name, "vfio-pci")) {
if (xen_mode == XEN_EMULATE
&& object_dynamic_cast(OBJECT(d), TYPE_VFIO_PCI)) {
+ return true;
+ }
+
+ return false;
+}
