Merge tag 'gvt-fixes-2018-01-08' of https://github.com/intel/gvt-linux into drm-intel-fixes

gvt-fixes-2018-01-08

- clear shadow entry for post-sync (Zhi)
- fix stack out-of-bound warning in cmd parser (Changbin)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108061130.ucwtumhpbfbu4psu@zhen-hp.sh.intel.com

2 files changed, 6 insertions, 3 deletions

diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index 85d4c57870fb..49af94627c8a 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -2777,12 +2777,12 @@ int intel_gvt_scan_and_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 }
 
 static struct cmd_info *find_cmd_entry_any_ring(struct intel_gvt *gvt,
-                unsigned int opcode, int rings)
+                unsigned int opcode, unsigned long rings)
 {
         struct cmd_info *info = NULL;
         unsigned int ring;
 
-        for_each_set_bit(ring, (unsigned long *)&rings, I915_NUM_ENGINES) {
+        for_each_set_bit(ring, &rings, I915_NUM_ENGINES) {
                 info = find_cmd_entry(gvt, opcode, ring);
                 if (info)
                         break;
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 8e331142badb..64d67ff9bf08 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -1359,12 +1359,15 @@ static int ppgtt_handle_guest_write_page_table_bytes(void *gp,
                         return ret;
         } else {
                 if (!test_bit(index, spt->post_shadow_bitmap)) {
+                        int type = spt->shadow_page.type;
+
                         ppgtt_get_shadow_entry(spt, &se, index);
                         ret = ppgtt_handle_guest_entry_removal(gpt, &se, index);
                         if (ret)
                                 return ret;
+                        ops->set_pfn(&se, vgpu->gtt.scratch_pt[type].page_mfn);
+                        ppgtt_set_shadow_entry(spt, &se, index);
                 }
-
                 ppgtt_set_post_shadow(spt, index);
         }