On 2017.05.12 17:37:56 +0800, Tina Zhang wrote:
> 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.zh...@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 */We need to bump pvinfo version for this structural change to keep versioned pvinfo page for compat check. So in this case I sugguest to bump minor version and check required pvinfo version when detecting caps. > /* > * Data structure to describe the balooning info of resources. > * Each VM can only have one portion of continuous area for now. > -- > 2.7.4 > > _______________________________________________ > intel-gvt-dev mailing list > intel-gvt-...@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gvt-dev -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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