All of lore.kernel.org
 help / color / mirror / Atom feed
From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
To: "Cédric Le Goater" <clg@kaod.org>
Cc: Gerome Burlats <gerome.burlats@smile.fr>,
	Romain Naour <romain.naour@gmail.com>,
	Matt Weber <matthew.weber@collins.com>,
	Joel Stanley <joel@jms.id.au>,
	buildroot@buildroot.org
Subject: Re: [Buildroot] [PATCH 1/3] configs/qemu: Add a ppc64le-powernv configuration
Date: Tue, 28 Dec 2021 22:14:30 +0100	[thread overview]
Message-ID: <20211228221430.7e8cb844@windsurf> (raw)
In-Reply-To: <20211112160413.2736382-1-clg@kaod.org>

Hello Cédric,

On Fri, 12 Nov 2021 17:04:11 +0100
Cédric Le Goater <clg@kaod.org> wrote:

> PowerNV (as Non-Virtualized) is the "baremetal" platform using the
> OPAL [1] firmware. It runs Linux on IBM and OpenPOWER systems and can
> be used as an hypervisor OS, running KVM guests, or simply as a host
> OS. OPAL includes a Linux kernel and a buildroot rootfs which acts as
> a bootloader [2] for the various systems installed on disks.

For the person not familiar with all this OpenPOWER stuff, it's very
complex to understand all these firmware, virtualized stuff,
hypervisor, etc.

> diff --git a/board/qemu/ppc64le-powernv/readme.txt b/board/qemu/ppc64le-powernv/readme.txt
> new file mode 100644
> index 000000000000..ee102a3d6846
> --- /dev/null
> +++ b/board/qemu/ppc64le-powernv/readme.txt
> @@ -0,0 +1,5 @@
> +Run the emulation with:
> +
> +qemu-system-ppc64 -M powernv9 -kernel vmlinux -append "console=hvc0 rootwait root=/dev/nvme0n1" -device nvme,bus=pcie.3,addr=0x0,drive=drive0,serial=1234 -drive file=./rootfs.ext2,if=none,id=drive0,format=raw,cache=none -device e1000e,netdev=net0,mac=C0:FF:EE:00:01:03,bus=pcie.1,addr=0x0  -netdev user,id=net0 -serial mon:stdio -nographic # qemu_ppc64le_powernv_defconfig

You're emulating a powernv9, so we assume based on the Power9 processor.

> @@ -0,0 +1,29 @@
> +# Architecture
> +BR2_powerpc64le=y
> +BR2_powerpc_power8=y

But you're targeting Power8.

Could you clarify?

Thanks!

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

  parent reply	other threads:[~2021-12-28 21:14 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-12 16:04 [Buildroot] [PATCH 1/3] configs/qemu: Add a ppc64le-powernv configuration Cédric Le Goater
2021-11-12 16:04 ` [Buildroot] [PATCH 2/3] configs/qemu_ppc64_e5500: Enable dhcp on network interface Cédric Le Goater
2021-12-28 21:15   ` Thomas Petazzoni
2021-11-12 16:04 ` [Buildroot] [PATCH 3/3] configs/qemu_ppc_e500mc: " Cédric Le Goater
2021-12-28 21:15   ` Thomas Petazzoni
2021-12-28 21:14 ` Thomas Petazzoni [this message]
2021-12-28 22:50   ` [Buildroot] [PATCH 1/3] configs/qemu: Add a ppc64le-powernv configuration Cédric Le Goater
2021-12-29  8:50     ` Thomas Petazzoni
2021-12-29 14:01       ` Cédric Le Goater
2021-12-29 14:19         ` Thomas Petazzoni

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20211228221430.7e8cb844@windsurf \
    --to=thomas.petazzoni@bootlin.com \
    --cc=buildroot@buildroot.org \
    --cc=clg@kaod.org \
    --cc=gerome.burlats@smile.fr \
    --cc=joel@jms.id.au \
    --cc=matthew.weber@collins.com \
    --cc=romain.naour@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.