The existing quirks aim config space and MSIX BAR accesses interception.
These are not always needed, for example, on pseries machines,
config space and MSI/MSIX configuration are handled by hypervisor.
This adds a "quirks" property to control whether to enable quirks or not;
the property is set to "true" by default.
Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
---
Helps to get
VGA compatible controller: NVIDIA Corporation GM107GL [Quadro K2200] (rev a2)
(which does not need the quirk anyway) working on POWER8 system.
---
hw/vfio/pci.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 2ed877f..ba47301 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -168,6 +168,7 @@ typedef struct VFIOPCIDevice {
bool has_flr;
bool has_pm_reset;
bool rom_read_failed;
+ bool allow_quirks;
} VFIOPCIDevice;
typedef struct VFIORomBlacklistEntry {
@@ -2442,7 +2443,9 @@ static void vfio_map_bar(VFIOPCIDevice *vdev, int nr)
}
}
- vfio_bar_quirk_setup(vdev, nr);
+ if (vdev->allow_quirks) {
+ vfio_bar_quirk_setup(vdev, nr);
+ }
}
static void vfio_map_bars(VFIOPCIDevice *vdev)
@@ -3753,6 +3756,7 @@ static Property vfio_pci_dev_properties[] = {
VFIO_FEATURE_ENABLE_REQ_BIT, true),
DEFINE_PROP_INT32("bootindex", VFIOPCIDevice, bootindex, -1),
DEFINE_PROP_BOOL("x-mmap", VFIOPCIDevice, vbasedev.allow_mmap, true),
+ DEFINE_PROP_BOOL("quirks", VFIOPCIDevice, allow_quirks, true),
/*
* TODO - support passed fds... is this necessary?
* DEFINE_PROP_STRING("vfiofd", VFIOPCIDevice, vfiofd_name),
--
2.4.0.rc3.8.gfb3e7d5
