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dm: Disable stolen memory for passthru graphics

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When enabling GPU passthru for guest, stolen memory needs to be
disabled. This change disables stolen memory in passthru mode.

Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Reviewed-by: Gong Zhipeng <zhipeng.gong@intel.com>
This commit is contained in:
Anitha Chrisanthus
2018-06-21 08:16:33 -07:00
committed by Xie, nanlin
parent 8d50d40ff8
commit 359e5cf794
2 changed files with 14 additions and 0 deletions
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3
devicemodel/include/pcireg.h
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@@ -1065,4 +1065,7 @@
#define PCIM_OSC_CTL_PCIE_AER 0x08 /* PCIe Advanced Error Reporting */
#define PCIM_OSC_CTL_PCIE_CAP_STRUCT 0x10 /* Various Capability Structures */
/* Graphics definitions */
#define PCIR_GMCH_CTL 0x50 /*GMCH grpahics control register */
#define PCIM_GMCH_CTL_GMS 0xFF00 /*GMS - stolen memory bits 15:8 */
#endif