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From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: use invd instead of wbinvd in real mode start code
Date: Tue, 18 Feb 2020 09:43:33 -0500	[thread overview]
Message-ID: <20200218144333.GQ18302@bill-the-cat> (raw)
In-Reply-To: <CAHp75VfQVCLp1QmbXwxbYibQHh98wXcm+QN1X0+_Bhxw2kPwFA@mail.gmail.com>

On Tue, Feb 18, 2020 at 01:29:04PM +0200, Andy Shevchenko wrote:
> On Tue, Feb 18, 2020 at 1:06 PM Heiko Schocher <hs@denx.de> wrote:
> > Am 18.02.2020 um 11:45 schrieb Andy Shevchenko:
> > > On Tue, Feb 18, 2020 at 7:48 AM Heiko Schocher <hs@denx.de> wrote:
> 
> ...
> 
> > > How the feed back line is organized? I mean how host system will know that
> > >   a) we done flash correctly?
> > >   b) the booted image is bad or good?
> >
> > For both questions the answer is, that you need to write a testcase
> > which answer this question.
> >
> > For a) you flash the image in some way through U-Boot commands. You
> > start this commands from a tbot testcase written in python and parse
> > the output and/or return code of the command and than decide ...
> >
> > Same for b) reboot the board, check if new version is installed
> > by parsing the U-Boot bootlog, than start U-Boot commands to find
> > out, if current installed version is good or bad.
> 
> Thank you for elaboration.
> I hoped and still hope that x86 won't be broken so drastically that I
> need real bisection.
> Above mentioned test cases is somewhat time consuming (yes, I agree
> that is ~one time big effort), and for now it seems much bigger effort
> than just guess by reading the code. Maybe in the future I'll consider
> to do something like this, but I think that U-Boot may gain some
> patches and config option to have BAT cases enabled (like predefined
> output on the serial when we consider commit is good and some C&C
> interface during the test).

Please note that you don't need to go and write a test case for "does it
boot" as we already have one as part of our test/py/ code.

-- 
Tom
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  reply	other threads:[~2020-02-18 14:43 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAHp75VdtevMO=AWeZZ-kfmo0Dx5RrGBZEW8Mm5ubLU2pm3Nh=g@mail.gmail.com>
2020-02-17 12:31 ` Fwd: use invd instead of wbinvd in real mode start code Andy Shevchenko
2020-02-17 12:33   ` Andy Shevchenko
     [not found] ` <CAK7LNASQuuEWCypyK+TDYa1eYk__KKRZ1Z8JgsEbhd+4KNFNjw@mail.gmail.com>
     [not found]   ` <CAHp75Veri=85osuFy0xDukEKN9zAULJpk+1sTdHynTL_deK=0Q@mail.gmail.com>
2020-02-17 13:47     ` Andy Shevchenko
2020-02-17 13:52       ` Bin Meng
2020-02-17 14:00         ` Andy Shevchenko
2020-02-17 14:49           ` Bin Meng
2020-02-17 15:31             ` Andy Shevchenko
2020-02-17 15:09       ` Wolfgang Denk
2020-02-17 15:13         ` Tom Rini
2020-02-17 15:32         ` Andy Shevchenko
2020-02-17 15:33           ` Andy Shevchenko
2020-02-17 16:02             ` Tom Rini
2020-02-17 16:04           ` Wolfgang Denk
2020-02-18  5:48             ` Heiko Schocher
2020-02-18 10:45               ` Andy Shevchenko
2020-02-18 11:06                 ` Heiko Schocher
2020-02-18 11:29                   ` Andy Shevchenko
2020-02-18 14:43                     ` Tom Rini [this message]
2020-02-18 15:37                       ` Andy Shevchenko
2020-02-19 13:14                   ` Wolfgang Denk
2020-02-19 13:42                     ` Tom Rini
2020-02-19 14:04                       ` Heiko Schocher
2020-02-17 16:05           ` Tom Rini

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