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From: Peter Maydell <peter.maydell@linaro.org>
To: Laszlo Ersek <lersek@redhat.com>
Cc: Drew Jones <drjones@redhat.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	QEMU Developers <qemu-devel@nongnu.org>,
	Christoffer Dall <christoffer.dall@linaro.org>"Richard W.M.
	Jones" <rjones@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2] arm: add fw_cfg to "virt" board
Date: Mon, 8 Dec 2014 21:34:26 +0000	[thread overview]
Message-ID: <CAFEAcA_OYE-9v7pcVCd3RgwprYJW+NHEXRL0t9jF+UCubB2MPQ@mail.gmail.com> (raw)
In-Reply-To: <548615CE.10100@redhat.com>

On 8 December 2014 at 21:19, Laszlo Ersek <lersek@redhat.com> wrote:
> So the following in addition makes it work on TCG (x86_64) too:
>
> -----------------
> diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
> index 7147fea..c2bc44c 100644
> --- a/hw/nvram/fw_cfg.c
> +++ b/hw/nvram/fw_cfg.c
> @@ -31,7 +31,7 @@
>  #include "qemu/config-file.h"
>
>  #define FW_CFG_SIZE 2
> -#define FW_CFG_DATA_SIZE 1
> +#define FW_CFG_DATA_SIZE 8
>  #define TYPE_FW_CFG "fw_cfg"
>  #define FW_CFG_NAME "fw_cfg"
>  #define FW_CFG_PATH "/machine/" FW_CFG_NAME
> -----------------
>
> It affects the memory_region_init_io() call in fw_cfg_initfn().
>
> I hope to submit a small v3 series soon.

If you do that don't you now try to define an ioport on
x86 that's 8 bytes wide? You probably also need to check
whether the ppc and sparc boards that use mmio fw_cfg
can handle the wider data register.

-- PMM

  reply	other threads:[~2014-12-08 21:34 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-30 16:59 [Qemu-devel] [PATCH v2] arm: add fw_cfg to "virt" board Laszlo Ersek
2014-12-05 18:42 ` Peter Maydell
2014-12-05 18:53   ` Laszlo Ersek
2014-12-08 14:01 ` Laszlo Ersek
2014-12-08 14:41   ` Peter Maydell
2014-12-08 14:43     ` Peter Maydell
2014-12-08 19:39     ` Laszlo Ersek
2014-12-08 21:19       ` Laszlo Ersek
2014-12-08 21:34         ` Peter Maydell [this message]
2014-12-08 23:20           ` Laszlo Ersek
2014-12-08 23:18   ` Christopher Covington
2014-12-08 23:51     ` Peter Maydell
2014-12-09  0:05     ` Laszlo Ersek
2014-12-09  9:31   ` Gerd Hoffmann
2014-12-09 15:41     ` Laszlo Ersek
2014-12-09 15:47       ` Peter Maydell
2014-12-09 15:54         ` Richard W.M. Jones
2014-12-10 11:13           ` Paolo Bonzini
2014-12-10 13:10             ` Andrew Jones
2014-12-09  0:05 ` Laszlo Ersek

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