drm/i915/gvt: Warning for invalid ggtt access

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Instead of silently return virtual ggtt entries that guest is allowed
to access, this patch add extra range check. If guest read out of
range, it will print a warning and return 0. If guest write out
of range, the write will be dropped without any message.

Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

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Xiong Zhang 2019-05-27 13:45:51 +08:00 • committed by Zhenyu Wang

parent c00f9c6b79

commit d18fd0576e

1 changed files with 9 additions and 0 deletions

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drivers/gpu/drm/i915/gvt/gtt.c

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