44b4673380
This is a another big one and the GVT shadow page management code is heavily refined. The new code only use struct intel_vgpu_ppgtt_spt to represent a vgpu shadow page table - w/ or wo/ a guest page associated with. A pure shadow page (no guest page associated) will be used to shadow splited 2M huge gtt. In this case, the spt.guest_page.gfn should be a zero. To search a existed shadow page table, we have two new interfaces: - intel_vgpu_find_spt_by_gfn(), find a spt by guest gfn. It must not be a pure spt. - intel_vgpu_find_spt_by_mfn, Find the spt using shadow page mfn in shadowed PTE. The oos_page management is remained as what is was. v2: Split some changes into small standalone patches. Signed-off-by: Changbin Du <changbin.du@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> |
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