77 lines
2.7 KiB
Diff
77 lines
2.7 KiB
Diff
|
From 4cf7d00e43c4e90327e13afa3cbc9c7ca3657c9f Mon Sep 17 00:00:00 2001
|
||
|
|
From: Binfeng Wu <wubinfeng@huawei.com>
|
||
|
|
Date: Tue, 8 Feb 2022 19:20:36 +0800
|
||
|
|
Subject: [PATCH 5/5] vfio/pci: Ascend910 need 4Bytes quirk in bar0
|
||
|
|
|
||
|
|
---
|
||
|
|
hw/vfio/pci-quirks.c | 37 +++++++++++++++++++++++++++++++++++++
|
||
|
|
1 file changed, 37 insertions(+)
|
||
|
|
|
||
|
|
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
|
||
|
|
index 6a9fc0afc5..2457a61196 100644
|
||
|
|
--- a/hw/vfio/pci-quirks.c
|
||
|
|
+++ b/hw/vfio/pci-quirks.c
|
||
|
|
@@ -1210,8 +1210,11 @@ int vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev,
|
||
|
|
}
|
||
|
|
|
||
|
|
#define PCI_VENDOR_ID_HUAWEI 0x19e5
|
||
|
|
+#define PCI_DEVICE_ID_ASCEND910 0xd801
|
||
|
|
#define PCI_DEVICE_ID_ASCEND710 0xd500
|
||
|
|
#define PCI_DEVICE_ID_ASCEND310 0xd100
|
||
|
|
+#define ASCEND910_XLOADER_SIZE 4
|
||
|
|
+#define ASCEND910_XLOADER_OFFSET 0x80400
|
||
|
|
#define ASCEND710_XLOADER_SIZE 4
|
||
|
|
#define ASCEND710_XLOADER_OFFSET 0x20430
|
||
|
|
#define ASCEND310_XLOADER_SIZE 4
|
||
|
|
@@ -1253,6 +1256,39 @@ static const MemoryRegionOps vfio_ascend_intercept_regs_quirk = {
|
||
|
|
.endianness = DEVICE_LITTLE_ENDIAN,
|
||
|
|
};
|
||
|
|
|
||
|
|
+static void vfio_probe_ascend910_bar0_quirk(VFIOPCIDevice *vdev, int nr)
|
||
|
|
+{
|
||
|
|
+ VFIOQuirk *quirk;
|
||
|
|
+ VFIOAscendBarQuirk *bar0_quirk;
|
||
|
|
+
|
||
|
|
+ if (vdev->vendor_id != PCI_VENDOR_ID_HUAWEI || nr != 0 ||
|
||
|
|
+ vdev->device_id != PCI_DEVICE_ID_ASCEND910) {
|
||
|
|
+ return;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ quirk = g_malloc0(sizeof(*quirk));
|
||
|
|
+ quirk->nr_mem = 1;
|
||
|
|
+ quirk->mem = g_new0(MemoryRegion, quirk->nr_mem);
|
||
|
|
+ bar0_quirk = quirk->data = g_new0(typeof(*bar0_quirk), quirk->nr_mem);
|
||
|
|
+ bar0_quirk[0].vdev = vdev;
|
||
|
|
+ bar0_quirk[0].offset = ASCEND910_XLOADER_OFFSET;
|
||
|
|
+ bar0_quirk[0].bar = nr;
|
||
|
|
+
|
||
|
|
+ /*
|
||
|
|
+ * intercept w/r to the xloader-updating register,
|
||
|
|
+ * so the vm can't enable xloader-updating
|
||
|
|
+ */
|
||
|
|
+ memory_region_init_io(&quirk->mem[0], OBJECT(vdev),
|
||
|
|
+ &vfio_ascend_intercept_regs_quirk,
|
||
|
|
+ &bar0_quirk[0],
|
||
|
|
+ "vfio-ascend910-bar0-intercept-regs-quirk",
|
||
|
|
+ ASCEND910_XLOADER_SIZE);
|
||
|
|
+ memory_region_add_subregion_overlap(vdev->bars[nr].region.mem,
|
||
|
|
+ bar0_quirk[0].offset,
|
||
|
|
+ &quirk->mem[0], 1);
|
||
|
|
+ QLIST_INSERT_HEAD(&vdev->bars[nr].quirks, quirk, next);
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
static void vfio_probe_ascend710_bar0_quirk(VFIOPCIDevice *vdev, int nr)
|
||
|
|
{
|
||
|
|
VFIOQuirk *quirk;
|
||
|
|
@@ -1371,6 +1407,7 @@ void vfio_bar_quirk_setup(VFIOPCIDevice *vdev, int nr)
|
||
|
|
#ifdef CONFIG_VFIO_IGD
|
||
|
|
vfio_probe_igd_bar4_quirk(vdev, nr);
|
||
|
|
#endif
|
||
|
|
+ vfio_probe_ascend910_bar0_quirk(vdev, nr);
|
||
|
|
vfio_probe_ascend710_bar0_quirk(vdev, nr);
|
||
|
|
vfio_probe_ascend310_bar4_quirk(vdev, nr);
|
||
|
|
}
|
||
|
|
--
|
||
|
|
2.27.0
|
||
|
|
|