Re: [edk2-devel] [PATCH] Support skipping automatic BM enumeration

["Ashish Singhal" <ashishsingha@nvidia.com>]

Hi Ray,

I did not see any example with which one can tell BDS not to enumerate a boot option. Can you please point me to an example where a protocol (Block IO, Simple FS or Load File) does not get enumerated as a boot option?

Thanks
Ashish

-----Original Message-----
From: Ni, Ray <ray.ni@intel.com> 
Sent: Monday, November 4, 2019 7:42 PM
To: Laszlo Ersek <lersek@redhat.com>; devel@edk2.groups.io; Ashish Singhal <ashishsingha@nvidia.com>; Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Gao, Zhichao <zhichao.gao@intel.com>
Cc: Kinney, Michael D <michael.d.kinney@intel.com>
Subject: RE: [edk2-devel] [PATCH] Support skipping automatic BM enumeration

+ Mike

With the UEFI driver model, if a device is not needed by booting, it can skip the connecting.
Then I do not see a need of the new protocol.

Thanks,
Ray

> -----Original Message-----
> From: Laszlo Ersek <lersek@redhat.com>
> Sent: Thursday, October 31, 2019 6:15 PM
> To: devel@edk2.groups.io; ashishsingha@nvidia.com; Wang, Jian J 
> <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Ni, Ray 
> <ray.ni@intel.com>; Gao, Zhichao <zhichao.gao@intel.com>
> Subject: Re: [edk2-devel] [PATCH] Support skipping automatic BM 
> enumeration
> 
> +Ray, +Zhichao
> 
> (although, the actual patch seems to be missing from the posting)
> 
> Thanks
> Laszlo
> 
> On 10/30/19 04:47, Ashish Singhal wrote:
> > Right now, any and every handle with a BlockIO or SimpleFileSystem 
> > or LoadFile protocol installed on the system is used to enumerate BM 
> > automatically. There may be cases where on a platform, some of these 
> > are not desirable to be enumerated automatically. This patch adds 
> > support for skipping this automatic enumeration if on the same 
> > handle, a new protocol defined as EdkiiSkipBmAutoEnumerate is found 
> > to be
> installed.
> >
> > Ashish Singhal (1):
> >   MdeModulePkg/UefiBootManagerLib: Support skipping BM enumeration
> >
> >  .../Include/Protocol/SkipBmAutoEnumerate.h         | 25 ++++++++++++++
> >  MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c   | 40
> +++++++++++++++++++++-
> >  .../Library/UefiBootManagerLib/InternalBm.h        |  1 +
> >  .../UefiBootManagerLib/UefiBootManagerLib.inf      |  1 +
> >  MdeModulePkg/MdeModulePkg.dec                      |  3 ++
> >  5 files changed, 69 insertions(+), 1 deletion(-)  create mode 
> > 100644 MdeModulePkg/Include/Protocol/SkipBmAutoEnumerate.h
> >


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