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VFIO updates 2017-02-10

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- Fix GTT wrap-around for Skylake IGD assignment (Alex Williamson)
  - Tag vfio-pci-igd-lpc-bridge as bridge device category (Thomas Huth)
  - Don't build calxeda-xgmac or amd-xgbe except on ARM (Thomas Huth)
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Merge remote-tracking branch 'remotes/awilliam/tags/vfio-updates-20170210.0' into staging

VFIO updates 2017-02-10

 - Fix GTT wrap-around for Skylake IGD assignment (Alex Williamson)
 - Tag vfio-pci-igd-lpc-bridge as bridge device category (Thomas Huth)
 - Don't build calxeda-xgmac or amd-xgbe except on ARM (Thomas Huth)

# gpg: Signature made Fri 10 Feb 2017 21:34:33 GMT
# gpg:                using RSA key 0x239B9B6E3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg:                 aka "Alex Williamson <alex@shazbot.org>"
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>"
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>"
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B  8A90 239B 9B6E 3BB0 8B22

* remotes/awilliam/tags/vfio-updates-20170210.0:
  hw/vfio: Add CONFIG switches for calxeda-xgmac and amd-xgbe
  hw/vfio/pci-quirks: Set category of the "vfio-pci-igd-lpc-bridge" device
  vfio-pci: Fix GTT wrap-around for Skylake+ IGD

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-02-13 09:30:15 +00:00
commit ed3d90df7c
3 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
default-configs/arm-softmmu.mak
View File

@ -95,6 +95,8 @@ CONFIG_VERSATILE_PCI=y
CONFIG_VERSATILE_I2C=y
CONFIG_PCI_GENERIC=y
CONFIG_VFIO_XGMAC=y
CONFIG_VFIO_AMD_XGBE=y
CONFIG_SDHCI=y
CONFIG_INTEGRATOR_DEBUG=y

4
hw/vfio/Makefile.objs
View File

@ -2,7 +2,7 @@ ifeq ($(CONFIG_LINUX), y)
obj-$(CONFIG_SOFTMMU) += common.o
obj-$(CONFIG_PCI) += pci.o pci-quirks.o
obj-$(CONFIG_SOFTMMU) += platform.o
obj-$(CONFIG_SOFTMMU) += calxeda-xgmac.o
obj-$(CONFIG_SOFTMMU) += amd-xgbe.o
obj-$(CONFIG_VFIO_XGMAC) += calxeda-xgmac.o
obj-$(CONFIG_VFIO_AMD_XGBE) += amd-xgbe.o
obj-$(CONFIG_SOFTMMU) += spapr.o
endif

6
hw/vfio/pci-quirks.c
View File

@ -1041,6 +1041,7 @@ static int igd_gen(VFIOPCIDevice *vdev)
typedef struct VFIOIGDQuirk {
struct VFIOPCIDevice *vdev;
uint32_t index;
uint32_t bdsm;
} VFIOIGDQuirk;
#define IGD_GMCH 0x50 /* Graphics Control Register */
@ -1185,6 +1186,7 @@ static void vfio_pci_igd_lpc_bridge_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->desc = "VFIO dummy ISA/LPC bridge for IGD assignment";
dc->hotpluggable = false;
k->realize = vfio_pci_igd_lpc_bridge_realize;
@ -1304,7 +1306,7 @@ static void vfio_igd_quirk_data_write(void *opaque, hwaddr addr,
"BIOS reserved stolen memory. Unsupported BIOS?");
}
val = base | (data & ((1 << 20) - 1));
val = data - igd->bdsm + base;
} else {
val = 0; /* upper 32bits of pte, we only enable below 4G PTEs */
}
@ -1503,6 +1505,8 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr)
igd = quirk->data = g_malloc0(sizeof(*igd));
igd->vdev = vdev;
igd->index = ~0;
igd->bdsm = vfio_pci_read_config(&vdev->pdev, IGD_BDSM, 4);
igd->bdsm &= ~((1 << 20) - 1); /* 1MB aligned */
memory_region_init_io(&quirk->mem[0], OBJECT(vdev), &vfio_igd_index_quirk,
igd, "vfio-igd-index-quirk", 4);