[Intel-gfx] [PATCH v2 2/4] drm/i915: introduce vgt_caps to pvinfo

[Tina Zhang]

vgt_caps is used for guest i915 driver to get the vgpu capabilities from
the device model. VGT_CPAS_FULL_PPGTT is one of the capabilities type to
let guest i915 dirver know that the guest i915 full ppgtt is supported by
device model.

Changes since v1:
- Use u32 instead of uint32_t (Joonas)
- Move VGT_CAPS_FULL_PPGTT introduction to this patch and use #define instead
  of enum (Joonas)

Signed-off-by: Tina Zhang <tina.zhang at intel.com>
---
 drivers/gpu/drm/i915/i915_pvinfo.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_pvinfo.h b/drivers/gpu/drm/i915/i915_pvinfo.h
index c0cb297..8dc0664 100644
--- a/drivers/gpu/drm/i915/i915_pvinfo.h
+++ b/drivers/gpu/drm/i915/i915_pvinfo.h
@@ -53,12 +53,18 @@ enum vgt_g2v_type {
 	VGT_G2V_MAX,
 };
 
+/*
+ * VGT capabilities type
+ */
+#define VGT_CAPS_FULL_PPGTT	BIT(2)
+
 struct vgt_if {
 	u64 magic;		/* VGT_MAGIC */
 	uint16_t version_major;
 	uint16_t version_minor;
 	u32 vgt_id;		/* ID of vGT instance */
-	u32 rsv1[12];		/* pad to offset 0x40 */
+	u32 vgt_caps;		/* VGT capabilities */
+	u32 rsv1[11];		/* pad to offset 0x40 */
 	/*
 	 *  Data structure to describe the balooning info of resources.
 	 *  Each VM can only have one portion of continuous area for now.
-- 
2.7.4