[PATCH v4] drm/i915/gvt: add some new MMIOs to cmd_access white list

Zhenyu Wang zhenyuw at linux.intel.com
Fri Feb 24 09:22:14 UTC 2017


On 2017.02.24 16:03:28 +0800, Weinan Li wrote:
> From: Pei Zhang <pei.zhang at intel.com>
> 
> Guest is now acces some MMIOs (0x215c, RING_INSTPM) through command which
> is not originally in gvt's white list. This cause huge error log printed in
> gvt.
> This patch addes these MMIOs to the white list.
> 
> V2. change the commit message content.
> V3. remove duplicate defination of 0x20c0.
> V4. refine code style.
> 
> Signed-off-by: Pei Zhang <pei.zhang at intel.com>
> Signed-off-by: Weinan Li <weinan.z.li at intel.com>
> ---

Applied, thanks!

>  drivers/gpu/drm/i915/gvt/handlers.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
> index 223b366..56695a4 100644
> --- a/drivers/gpu/drm/i915/gvt/handlers.c
> +++ b/drivers/gpu/drm/i915/gvt/handlers.c
> @@ -1589,7 +1589,8 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
>  #undef RING_REG
>  
>  	MMIO_RING_DFH(RING_MI_MODE, D_ALL, F_MODE_MASK, NULL, NULL);
> -	MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK, NULL, NULL);
> +	MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
> +			NULL, NULL);
>  	MMIO_RING_DFH(RING_TIMESTAMP, D_ALL, F_CMD_ACCESS,
>  			ring_timestamp_mmio_read, NULL);
>  	MMIO_RING_DFH(RING_TIMESTAMP_UDW, D_ALL, F_CMD_ACCESS,
> @@ -2284,7 +2285,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
>  	MMIO_D(0x1a054, D_ALL);
>  
>  	MMIO_D(0x44070, D_ALL);
> -	MMIO_D(0x215c, D_HSW_PLUS);
> +	MMIO_DFH(0x215c, D_HSW_PLUS, F_CMD_ACCESS, NULL, NULL);
>  	MMIO_DFH(0x2178, D_ALL, F_CMD_ACCESS, NULL, NULL);
>  	MMIO_DFH(0x217c, D_ALL, F_CMD_ACCESS, NULL, NULL);
>  	MMIO_DFH(0x12178, D_ALL, F_CMD_ACCESS, NULL, NULL);
> -- 
> 1.9.1
> 
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> intel-gvt-dev at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gvt-dev

-- 
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