Re: [edk2-devel] [PATCH] MdeModulePkg: AllocatePages for TranslateBmpToGopBlt

["Ard Biesheuvel" <ardb@kernel.org>]

On Fri, 21 Jul 2023 at 17:38, chitralekha ck <chitralekha.ck@intel.com> wrote:
>
> https://bugzilla.tianocore.org/show_bug.cgi?id=4507
> AllocatePool limits to allocate memory of 64 KB at most.

What is the basis for this observation? In DXE, pool allocations are
unbounded afaik.



> if the the image size is higher than that it will fail to allocate.
> change the function debug string to __func__
>

Please don't mix unrelated changes in the same patch.

> Cc: Ray Ni <ray.ni@intel.com>
> Cc: Zhichao Gao <zhichao.gao@intel.com>
> Cc: Ashraf Ali S <ashraf.ali.s@intel.com>
> Cc: Chinni B Duggapu <chinni.b.duggapu@intel.com>
> Signed-off-by: chitralekha ck <chitralekha.ck@intel.com>
> ---
>  .../Library/BaseBmpSupportLib/BmpSupportLib.c | 58 +++++++++++--------
>  1 file changed, 33 insertions(+), 25 deletions(-)
>
> diff --git a/MdeModulePkg/Library/BaseBmpSupportLib/BmpSupportLib.c b/MdeModulePkg/Library/BaseBmpSupportLib/BmpSupportLib.c
> index c5e885d7a6..d0833a721f 100644
> --- a/MdeModulePkg/Library/BaseBmpSupportLib/BmpSupportLib.c
> +++ b/MdeModulePkg/Library/BaseBmpSupportLib/BmpSupportLib.c
> @@ -52,7 +52,7 @@ const BMP_IMAGE_HEADER  mBmpImageHeaderTemplate = {
>  /**
>    Translate a *.BMP graphics image to a GOP blt buffer. If a NULL Blt buffer
>    is passed in a GopBlt buffer will be allocated by this routine using
> -  EFI_BOOT_SERVICES.AllocatePool(). If a GopBlt buffer is passed in it will be
> +  EFI_BOOT_SERVICES.AllocatePages(). If a GopBlt buffer is passed in it will be
>    used if it is big enough.
>
>    @param[in]       BmpImage      Pointer to BMP file.
> @@ -113,14 +113,14 @@ TranslateBmpToGopBlt (
>    }
>
>    if (BmpImageSize < sizeof (BMP_IMAGE_HEADER)) {
> -    DEBUG ((DEBUG_ERROR, "TranslateBmpToGopBlt: BmpImageSize too small\n"));
> +    DEBUG ((DEBUG_ERROR, "%a: BmpImageSize too small\n", __func__));
>      return RETURN_UNSUPPORTED;
>    }
>
>    BmpHeader = (BMP_IMAGE_HEADER *)BmpImage;
>
>    if ((BmpHeader->CharB != 'B') || (BmpHeader->CharM != 'M')) {
> -    DEBUG ((DEBUG_ERROR, "TranslateBmpToGopBlt: BmpHeader->Char fields incorrect\n"));
> +    DEBUG ((DEBUG_ERROR, "%a: BmpHeader->Char fields incorrect\n", __func__));
>      return RETURN_UNSUPPORTED;
>    }
>
> @@ -128,12 +128,12 @@ TranslateBmpToGopBlt (
>    // Doesn't support compress.
>    //
>    if (BmpHeader->CompressionType != 0) {
> -    DEBUG ((DEBUG_ERROR, "TranslateBmpToGopBlt: Compression Type unsupported.\n"));
> +    DEBUG ((DEBUG_ERROR, "%a: Compression Type unsupported\n", __func__));
>      return RETURN_UNSUPPORTED;
>    }
>
>    if ((BmpHeader->PixelHeight == 0) || (BmpHeader->PixelWidth == 0)) {
> -    DEBUG ((DEBUG_ERROR, "TranslateBmpToGopBlt: BmpHeader->PixelHeight or BmpHeader->PixelWidth is 0.\n"));
> +    DEBUG ((DEBUG_ERROR, "%a: BmpHeader PixelHeight or PixelWidth is 0\n", __func__));
>      return RETURN_UNSUPPORTED;
>    }
>
> @@ -144,7 +144,8 @@ TranslateBmpToGopBlt (
>    if (BmpHeader->HeaderSize != sizeof (BMP_IMAGE_HEADER) - OFFSET_OF (BMP_IMAGE_HEADER, HeaderSize)) {
>      DEBUG ((
>        DEBUG_ERROR,
> -      "TranslateBmpToGopBlt: BmpHeader->Headership is not as expected.  Headersize is 0x%x\n",
> +      "%a: BmpHeader->Headership is not as expected. Headersize is 0x%x\n",
> +      __func__,
>        BmpHeader->HeaderSize
>        ));
>      return RETURN_UNSUPPORTED;
> @@ -161,7 +162,8 @@ TranslateBmpToGopBlt (
>    if (EFI_ERROR (Status)) {
>      DEBUG ((
>        DEBUG_ERROR,
> -      "TranslateBmpToGopBlt: invalid BmpImage... PixelWidth:0x%x BitPerPixel:0x%x\n",
> +      "%a: invalid BmpImage. PixelWidth:0x%x BitPerPixel:0x%x\n",
> +      __func__,
>        BmpHeader->PixelWidth,
>        BmpHeader->BitPerPixel
>        ));
> @@ -172,7 +174,8 @@ TranslateBmpToGopBlt (
>    if (EFI_ERROR (Status)) {
>      DEBUG ((
>        DEBUG_ERROR,
> -      "TranslateBmpToGopBlt: invalid BmpImage... DataSizePerLine:0x%x\n",
> +      "%a: invalid BmpImage. DataSizePerLine:0x%x\n",
> +      __func__,
>        DataSizePerLine
>        ));
>
> @@ -189,7 +192,8 @@ TranslateBmpToGopBlt (
>    if (EFI_ERROR (Status)) {
>      DEBUG ((
>        DEBUG_ERROR,
> -      "TranslateBmpToGopBlt: invalid BmpImage... DataSizePerLine:0x%x PixelHeight:0x%x\n",
> +      "%a: invalid BmpImage. DataSizePerLine:0x%x PixelHeight:0x%x\n",
> +      __func__,
>        DataSizePerLine,
>        BmpHeader->PixelHeight
>        ));
> @@ -206,7 +210,8 @@ TranslateBmpToGopBlt (
>    if (EFI_ERROR (Status)) {
>      DEBUG ((
>        DEBUG_ERROR,
> -      "TranslateBmpToGopBlt: invalid BmpImage... PixelHeight:0x%x DataSizePerLine:0x%x\n",
> +      "%a: invalid BmpImage. PixelHeight:0x%x DataSizePerLine:0x%x\n",
> +      __func__,
>        BmpHeader->PixelHeight,
>        DataSizePerLine
>        ));
> @@ -218,11 +223,11 @@ TranslateBmpToGopBlt (
>        (BmpHeader->Size < BmpHeader->ImageOffset) ||
>        (BmpHeader->Size - BmpHeader->ImageOffset != DataSize))
>    {
> -    DEBUG ((DEBUG_ERROR, "TranslateBmpToGopBlt: invalid BmpImage... \n"));
> -    DEBUG ((DEBUG_ERROR, "   BmpHeader->Size: 0x%x\n", BmpHeader->Size));
> -    DEBUG ((DEBUG_ERROR, "   BmpHeader->ImageOffset: 0x%x\n", BmpHeader->ImageOffset));
> -    DEBUG ((DEBUG_ERROR, "   BmpImageSize: 0x%lx\n", (UINTN)BmpImageSize));
> -    DEBUG ((DEBUG_ERROR, "   DataSize: 0x%lx\n", (UINTN)DataSize));
> +    DEBUG ((DEBUG_ERROR, "%a: invalid BmpImage... \n", __func__));
> +    DEBUG ((DEBUG_ERROR, " Size: 0x%x\n", BmpHeader->Size));
> +    DEBUG ((DEBUG_ERROR, " ImageOffset: 0x%x\n", BmpHeader->ImageOffset));
> +    DEBUG ((DEBUG_ERROR, " BmpImageSize: 0x%lx\n", (UINTN)BmpImageSize));
> +    DEBUG ((DEBUG_ERROR, " DataSize: 0x%lx\n", (UINTN)DataSize));
>
>      return RETURN_UNSUPPORTED;
>    }
> @@ -279,7 +284,8 @@ TranslateBmpToGopBlt (
>    if (EFI_ERROR (Status)) {
>      DEBUG ((
>        DEBUG_ERROR,
> -      "TranslateBmpToGopBlt: invalid BltBuffer needed size... PixelWidth:0x%x PixelHeight:0x%x\n",
> +      "%a: invalid BltBuffer needed size. PixelWidth:0x%x PixelHeight:0x%x\n",
> +      __func__,
>        BmpHeader->PixelWidth,
>        BmpHeader->PixelHeight
>        ));
> @@ -297,7 +303,8 @@ TranslateBmpToGopBlt (
>    if (EFI_ERROR (Status)) {
>      DEBUG ((
>        DEBUG_ERROR,
> -      "TranslateBmpToGopBlt: invalid BltBuffer needed size... PixelWidth x PixelHeight:0x%x struct size:0x%x\n",
> +      "%a: invalid BltBuffer needed size. PixelWidth x PixelHeight:0x%x struct size:0x%x\n",
> +      __func__,
>        Temp,
>        sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
>        ));
> @@ -312,7 +319,7 @@ TranslateBmpToGopBlt (
>      //
>      DEBUG ((DEBUG_INFO, "Bmp Support: Allocating 0x%X bytes of memory\n", BltBufferSize));
>      *GopBltSize = (UINTN)BltBufferSize;
> -    *GopBlt     = AllocatePool (*GopBltSize);
> +    *GopBlt     = AllocatePages (*GopBltSize);
>      IsAllocated = TRUE;
>      if (*GopBlt == NULL) {
>        return RETURN_OUT_OF_RESOURCES;
> @@ -329,13 +336,14 @@ TranslateBmpToGopBlt (
>
>    *PixelWidth  = BmpHeader->PixelWidth;
>    *PixelHeight = BmpHeader->PixelHeight;
> -  DEBUG ((DEBUG_INFO, "BmpHeader->ImageOffset 0x%X\n", BmpHeader->ImageOffset));
> -  DEBUG ((DEBUG_INFO, "BmpHeader->PixelWidth 0x%X\n", BmpHeader->PixelWidth));
> -  DEBUG ((DEBUG_INFO, "BmpHeader->PixelHeight 0x%X\n", BmpHeader->PixelHeight));
> -  DEBUG ((DEBUG_INFO, "BmpHeader->BitPerPixel 0x%X\n", BmpHeader->BitPerPixel));
> -  DEBUG ((DEBUG_INFO, "BmpHeader->ImageSize 0x%X\n", BmpHeader->ImageSize));
> -  DEBUG ((DEBUG_INFO, "BmpHeader->HeaderSize 0x%X\n", BmpHeader->HeaderSize));
> -  DEBUG ((DEBUG_INFO, "BmpHeader->Size 0x%X\n", BmpHeader->Size));
> +  DEBUG ((DEBUG_INFO, "BmpHeader :\n"));
> +  DEBUG ((DEBUG_INFO, " ImageOffset 0x%X\n", BmpHeader->ImageOffset));
> +  DEBUG ((DEBUG_INFO, " PixelWidth 0x%X\n", BmpHeader->PixelWidth));
> +  DEBUG ((DEBUG_INFO, " PixelHeight 0x%X\n", BmpHeader->PixelHeight));
> +  DEBUG ((DEBUG_INFO, " BitPerPixel 0x%X\n", BmpHeader->BitPerPixel));
> +  DEBUG ((DEBUG_INFO, " ImageSize 0x%X\n", BmpHeader->ImageSize));
> +  DEBUG ((DEBUG_INFO, " HeaderSize 0x%X\n", BmpHeader->HeaderSize));
> +  DEBUG ((DEBUG_INFO, " Size 0x%X\n", BmpHeader->Size));
>
>    //
>    // Translate image from BMP to Blt buffer format
> --
> 2.38.1.windows.1
>
>
>
> 
>
>


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