From: "Andrew Jeffery" <andrew@aj.id.au>
To: "Cédric Le Goater" <clg@kaod.org>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Peter Maydell" <peter.maydell@linaro.org>
Cc: qemu-arm@nongnu.org, Joel Stanley <joel@jms.id.au>,
Cameron Esfahani via <qemu-devel@nongnu.org>
Subject: Re: [PATCH] docs/system: Document Aspeed boards
Date: Wed, 03 Jun 2020 10:15:59 +0930 [thread overview]
Message-ID: <e3d11c90-86d9-4daf-ba4c-9da98942e578@www.fastmail.com> (raw)
In-Reply-To: <80e5403f-a842-4542-41d3-d1d8236af637@kaod.org>
>
> >> + * Hash/Crypto Engine
> >> + * PCI-Express 1 Controller
> >> + * Graphic Display Controller
> >> + * PECI Controller
> >> + * MCTP Controller
> >> + * Mailbox Controller
> >> + * Virtual UART
> >
> > Uh what is that? :)
>
> It is the host console.
>
To explain a little more, a 16550-compatible set of registers are exposed to
both the host (via e.g. the LPC bus) and the BMC, but the FIFOs are shared and
the transmissions are nothing more than register writes/reads from each side.
There's no RS-232 involved, hence "Virtual" I guess.
Andrew
next prev parent reply other threads:[~2020-06-03 0:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-02 13:50 [PATCH] docs/system: Document Aspeed boards Cédric Le Goater
2020-06-02 15:00 ` Philippe Mathieu-Daudé
2020-06-02 16:28 ` Cédric Le Goater
2020-06-03 0:45 ` Andrew Jeffery [this message]
2020-06-05 13:51 ` Peter Maydell
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