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| author | Xinyun Liu | 2018-06-07 16:48:42 +0200 |
|---|---|---|
| committer | Zhenyu Wang | 2018-06-11 09:04:45 +0200 |
| commit | 1417fad75cb4eddc8d50604be88ca9a8a8de4c71 (patch) | |
| tree | a22316c425fc9ca9765c8476f821700e4af29e68 /drivers/gpu/drm/i915/gvt/scheduler.c | |
| parent | drm/i915/gvt: removed unnecessary boundary check (diff) | |
| download | kernel-qcow2-linux-1417fad75cb4eddc8d50604be88ca9a8a8de4c71.tar.gz kernel-qcow2-linux-1417fad75cb4eddc8d50604be88ca9a8a8de4c71.tar.xz kernel-qcow2-linux-1417fad75cb4eddc8d50604be88ca9a8a8de4c71.zip | |
drm/i915/gvt: use array to avoid potential buffer overflow
Array 'pdp_pair' of size 1 may use index value(s) 1..7.
Changed to pdps[8] to avoid confusion.
Signed-off-by: Xinyun Liu <xinyun.liu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/scheduler.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/scheduler.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index cf5a22cb6e06..462cf560492e 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -45,11 +45,10 @@ static void set_context_pdp_root_pointer( struct execlist_ring_context *ring_context, u32 pdp[8]) { - struct execlist_mmio_pair *pdp_pair = &ring_context->pdp3_UDW; int i; for (i = 0; i < 8; i++) - pdp_pair[i].val = pdp[7 - i]; + ring_context->pdps[i].val = pdp[7 - i]; } static void update_shadow_pdps(struct intel_vgpu_workload *workload) @@ -1230,7 +1229,7 @@ static void read_guest_pdps(struct intel_vgpu *vgpu, u64 gpa; int i; - gpa = ring_context_gpa + RING_CTX_OFF(pdp3_UDW.val); + gpa = ring_context_gpa + RING_CTX_OFF(pdps[0].val); for (i = 0; i < 8; i++) intel_gvt_hypervisor_read_gpa(vgpu, |