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dm: Data Stolen Memory (DSM) passthrough support for GVT-d on TGL

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The way of passing DSM address on TGL is the same with on EHL.
Adding these code to support GVT-d on TGL.

Tracked-On: #5020
Signed-off-by: Sun Peng <peng.p.sun@intel.com>
Acked-by: Yu Wang yu1.wang@intel.com
This commit is contained in:
Sun Peng 2020-04-28 13:43:01 +08:00 committed by wenlingz
parent 6722132233
commit 6edd21c1dc
2 changed files with 2 additions and 0 deletions
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1
devicemodel/hw/pci/passthrough.c
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@ -426,6 +426,7 @@ passthru_gpu_dsm_opregion(struct vmctx *ctx, struct passthru_dev *ptdev,
switch (device) {
case INTEL_ELKHARTLAKE:
case INTEL_TIGERLAKE:
/* BDSM register has 64 bits.
* bits 63:20 contains the base address of stolen memory
*/

1
devicemodel/include/pcireg.h
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@ -1067,6 +1067,7 @@
/* Graphics definitions */
#define INTEL_ELKHARTLAKE 0x4551
#define INTEL_TIGERLAKE 0x9a49
#define PCIR_BDSM 0x5C /* BDSM graphics base data of stolen memory register */
#define PCIR_GEN11_BDSM_DW0 0xC0
#define PCIR_GEN11_BDSM_DW1 0xC4