Re: [edk2-devel] [PATCH] SecurityPkg/OpalPassword: Remove dependency on EFI_BLOCK_IO_PROTOCOL

["Maggie Chu" <maggie.chu@intel.com>]

Hi Jiewen,

This patch has been added to client bios as override since last year and validated on WHL/CFL/ICL and also CML.
It was asked by RST team because BLOCK IO protocol is unable to be provided on each physical device when RAID volume created.

Thanks,
Maggie

-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Yao, Jiewen
Sent: Monday, November 4, 2019 12:08 PM
To: Chu, Maggie <maggie.chu@intel.com>; devel@edk2.groups.io
Cc: Dong, Eric <eric.dong@intel.com>; Zhang, Chao B <chao.b.zhang@intel.com>
Subject: Re: [edk2-devel] [PATCH] SecurityPkg/OpalPassword: Remove dependency on EFI_BLOCK_IO_PROTOCOL

Hello
May I know what test has been done for this patch?


> -----Original Message-----
> From: Chu, Maggie <maggie.chu@intel.com>
> Sent: Monday, November 4, 2019 12:04 PM
> To: devel@edk2.groups.io
> Cc: Dong, Eric <eric.dong@intel.com>; Zhang, Chao B 
> <chao.b.zhang@intel.com>; Yao, Jiewen <jiewen.yao@intel.com>
> Subject: [PATCH] SecurityPkg/OpalPassword: Remove dependency on 
> EFI_BLOCK_IO_PROTOCOL
> 
> https://bugzilla.tianocore.org/show_bug.cgi?id=2327
> 
> RAID drivers abstract their physical drives that make up the array 
> into a single unit, and do not supply individual EFI_BLOCK_IO_PROTOCOL 
> instances for each physical drive in the array.
> This breaks support for the Security Storage Command Protocol, which 
> currently requires an EFI_BLOCK_IO_PROTOCOL to be associated with the 
> same device the protocol is installed on and provide all the same 
> parameters.
> 
> This patch remove dependency on EFI_BLOCK_IO_PROTOCOL and allows 
> access to Opal drive members of a RAID array.
> 
> Signed-off-by: Maggie Chu <maggie.chu@intel.com>
> Cc: Eric Dong <eric.dong@intel.com>
> Cc: Chao Zhang <chao.b.zhang@intel.com>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> ---
>  SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c | 70 
> ++++++++++--------------
> --
>  1 file changed, 27 insertions(+), 43 deletions(-)
> 
> diff --git a/SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c
> b/SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c
> index 77905d2bf9..6bec54b932 100644
> --- a/SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c
> +++ b/SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c
> @@ -2667,7 +2667,6 @@ OpalEfiDriverBindingSupported(  {
> 
>    EFI_STATUS                              Status;
> 
>    EFI_STORAGE_SECURITY_COMMAND_PROTOCOL*  SecurityCommand;
> 
> -  EFI_BLOCK_IO_PROTOCOL*                  BlkIo;
> 
> 
> 
>    if (mOpalEndOfDxe) {
> 
>      return EFI_UNSUPPORTED;
> 
> @@ -2703,33 +2702,6 @@ OpalEfiDriverBindingSupported(
>        Controller
> 
>        );
> 
> 
> 
> -  //
> 
> -  // Test EFI_BLOCK_IO_PROTOCOL on controller Handle, required by 
> EFI_STORAGE_SECURITY_COMMAND_PROTOCOL
> 
> -  // function APIs
> 
> -  //
> 
> -  Status = gBS->OpenProtocol(
> 
> -    Controller,
> 
> -    &gEfiBlockIoProtocolGuid,
> 
> -    (VOID **)&BlkIo,
> 
> -    This->DriverBindingHandle,
> 
> -    Controller,
> 
> -    EFI_OPEN_PROTOCOL_BY_DRIVER
> 
> -    );
> 
> -
> 
> -  if (EFI_ERROR(Status)) {
> 
> -    DEBUG((DEBUG_INFO, "No EFI_BLOCK_IO_PROTOCOL on controller\n"));
> 
> -    return Status;
> 
> -  }
> 
> -
> 
> -  //
> 
> -  // Close protocol and reopen in Start call
> 
> -  //
> 
> -  gBS->CloseProtocol(
> 
> -    Controller,
> 
> -    &gEfiBlockIoProtocolGuid,
> 
> -    This->DriverBindingHandle,
> 
> -    Controller
> 
> -    );
> 
> 
> 
>    return EFI_SUCCESS;
> 
>  }
> 
> @@ -2827,30 +2799,42 @@ OpalEfiDriverBindingStart(
>      );
> 
>    if (EFI_ERROR(Status)) {
> 
>      //
> 
> -    // Close storage security that was opened
> 
> +    // Block_IO not supported on handle
> 
>      //
> 
> -    gBS->CloseProtocol(
> 
> -        Controller,
> 
> -        &gEfiStorageSecurityCommandProtocolGuid,
> 
> -        This->DriverBindingHandle,
> 
> -        Controller
> 
> -        );
> 
> +    if(Status == EFI_UNSUPPORTED) {
> 
> +      BlkIo = NULL;
> 
> +    } else {
> 
> +      //
> 
> +      // Close storage security that was opened
> 
> +      //
> 
> +      gBS->CloseProtocol(
> 
> +          Controller,
> 
> +          &gEfiStorageSecurityCommandProtocolGuid,
> 
> +          This->DriverBindingHandle,
> 
> +          Controller
> 
> +          );
> 
> 
> 
> -    FreePool(Dev);
> 
> -    return Status;
> 
> +      FreePool(Dev);
> 
> +      return Status;
> 
> +    }
> 
>    }
> 
> 
> 
>    //
> 
>    // Save mediaId
> 
>    //
> 
> -  Dev->MediaId = BlkIo->Media->MediaId;
> 
> +  if(BlkIo == NULL) {
> 
> +    // If no Block IO present, use defined MediaId value.
> 
> +    Dev->MediaId = 0x0;
> 
> +  } else {
> 
> +    Dev->MediaId = BlkIo->Media->MediaId;
> 
> 
> 
> -  gBS->CloseProtocol(
> 
> -    Controller,
> 
> -    &gEfiBlockIoProtocolGuid,
> 
> -    This->DriverBindingHandle,
> 
> -    Controller
> 
> +    gBS->CloseProtocol(
> 
> +      Controller,
> 
> +      &gEfiBlockIoProtocolGuid,
> 
> +      This->DriverBindingHandle,
> 
> +      Controller
> 
>      );
> 
> +  }
> 
> 
> 
>    //
> 
>    // Acquire Ascii printable name of child, if not found, then ignore 
> device
> 
> --
> 2.16.2.windows.1