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Date:      Thu, 22 Mar 2018 12:51:33 +0200
From:      Toomas Soome <tsoome@me.com>
To:        FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: Call for Testing: UEFI Changes
Message-ID:  <901CE994-0A28-4538-A4A9-A23E0B7E4879@me.com>
In-Reply-To: <5f663141-433c-951d-a350-7369b004415f@alvermark.net>
References:  <CACNAnaFmu2rFF1w4ar4xHUbN5vHitTLi0Ui6aCjL1MuTj3iJsQ@mail.gmail.com> <5f663141-433c-951d-a350-7369b004415f@alvermark.net>

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> On 22 Mar 2018, at 12:13, Jakob Alvermark <jakob@alvermark.net> wrote:
>=20
> Hi!
>=20
>=20
> Just updated to r331345.
>=20
> Two problems:
>=20
> 1. boot/efi.4th is added to /usr/src/ObsoleteFiles.inc but still =
included in loader.rc. Loader fails to load it and subsequently fails to =
load modules. Reinstalling efi.4th problem 2 appears.
>=20
>=20
> 2. Fixing problem 1 and adding efirt_load=3D"YES" to /boot/loader.conf =
makes the kernel panic instantly. Photo of panic: =
https://photos.app.goo.gl/ph3yQukOAUdQpsvK2
>=20
>=20
> Jakob

The efi.4th was introduced and later removed by Warner, a bit too =
hastily perhaps=E2=80=A6 but perhaps it is better to note the partial =
revert of the removal or something like that:)

rgds,
toomas


>=20
>=20
> On 03/22/18 01:45, Kyle Evans wrote:
>> Hello!
>>=20
>> A number of changes have gone in recently pertaining to UEFI booting
>> and UEFI runtime services. The changes with the most damaging
>> potential are:
>>=20
>> We now put UEFI runtime services into virtual address mode, fixing
>> runtime services with U-Boot/UEFI as well as the firmware
>> implementation in many Lenovos. The previously observed behavior was =
a
>> kernel panic upon invocation of efibootmgr/efivar, or a kernel panic
>> just loading efirt.ko or compiling EFIRT into the kernel.
>>=20
>> Graphics mode selection is now done differently to avoid regression
>> caused by r327058 while still achieving the same effect. The observed
>> regression was that the kernel would usually end up drawing
>> incorrectly at the old resolution on a subset of the screen, due to
>> incorrect framebuffer information.
>>=20
>> Explicit testing of these changes, the latest of which happened in
>> r331326, and any feedback from this testing would be greatly
>> appreciated. Testing should be done with either `options EFIRT` in
>> your kernel config or efirt.ko loaded along with updated bootloader
>> bits.
>>=20
>> I otherwise plan to MFC commits involved with the above-mentioned
>> changes by sometime in the first week of April, likely no earlier =
than
>> two (2) weeks from now on April 4th.
>>=20
>> Thanks,
>>=20
>> Kyle Evans
>> _______________________________________________
>> freebsd-current@freebsd.org  mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-current
>> To unsubscribe, send any mail =
to"freebsd-current-unsubscribe@freebsd.org"
>=20
> _______________________________________________
> freebsd-current@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to =
"freebsd-current-unsubscribe@freebsd.org"




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