From: Gerd Hoffmann <kraxel@redhat.com>
To: Kevin O'Connor <kevin@koconnor.net>
Cc: Drew <drjones@redhat.com>, "Stefan Hajnoczi" <stefanha@gmail.com>,
"Gabriel L. Somlo" <somlo@cmu.edu>,
qemu-devel@nongnu.org, "Marc Marí" <markmb@redhat.com>,
"Laszlo Ersek" <lersek@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable
Date: Fri, 02 Oct 2015 10:16:26 +0200 [thread overview]
Message-ID: <1443773786.14636.12.camel@redhat.com> (raw)
In-Reply-To: <20151001160242.GA7766@morn.lan>
Hi,
> That's fine with me. Marc - I think qemu_vmlinux_setup() in SeaBIOS
> with the following would work:
>
> void qemu_vmlinux_setup(void)
> {
> u32 kernel_size;
> qemu_cfg_read_entry(&kernel_size, QEMU_CFG_KERNEL_SIZE, sizeof(kernel_size));
> if (kernel_size)
> boot_add_qemu_vmlinux("QEMU Kernel image", 0);
> }
It isn't that simple. We also have support for multiboot kernels (using
multiboot.bin option rom). So when doing this you need to be prepared
to find a multiboot kernel in fw_cfg.
cheers,
Gerd
next prev parent reply other threads:[~2015-10-02 8:16 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-01 12:14 [Qemu-devel] QEMU fw_cfg DMA interface Marc Marí
2015-10-01 12:16 ` [Qemu-devel] [PATCH v4 0/7] " Marc Marí
2015-10-01 12:16 ` [Qemu-devel] [PATCH v4 1/7] fw_cfg: document fw_cfg_modify_iXX() update functions Marc Marí
2015-10-01 12:16 ` [Qemu-devel] [PATCH v4 2/7] fw_cfg DMA interface documentation Marc Marí
2015-10-01 14:41 ` Laszlo Ersek
2015-10-01 12:16 ` [Qemu-devel] [PATCH v4 3/7] Implement fw_cfg DMA interface Marc Marí
2015-10-01 14:36 ` Laszlo Ersek
2015-10-01 15:52 ` Marc Marí
2015-10-01 17:18 ` Peter Maydell
2015-10-01 19:20 ` Laszlo Ersek
2015-10-06 14:44 ` Stefan Hajnoczi
2015-10-06 14:53 ` Peter Maydell
2015-10-08 9:07 ` Stefan Hajnoczi
2015-10-08 10:01 ` Marc Marí
2015-10-06 14:54 ` Marc Marí
2015-10-01 12:16 ` [Qemu-devel] [PATCH v4 4/7] Enable fw_cfg DMA interface for ARM Marc Marí
2015-10-01 14:42 ` Laszlo Ersek
2015-10-01 12:16 ` [Qemu-devel] [PATCH v4 5/7] Enable fw_cfg DMA interface for x86 Marc Marí
2015-10-01 14:48 ` Laszlo Ersek
2015-10-01 12:16 ` [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable Marc Marí
2015-10-01 15:25 ` Laszlo Ersek
2015-10-01 16:02 ` Kevin O'Connor
2015-10-01 16:10 ` Laszlo Ersek
2015-10-01 18:15 ` Marc Marí
2015-10-02 8:16 ` Gerd Hoffmann [this message]
2015-10-02 8:24 ` Marc Marí
2015-10-02 9:01 ` Gerd Hoffmann
2015-10-02 11:47 ` Laszlo Ersek
2015-10-02 12:07 ` Gerd Hoffmann
2015-10-02 13:25 ` Laszlo Ersek
2015-10-02 13:30 ` Laszlo Ersek
2015-10-03 0:05 ` Jordan Justen
2015-10-02 13:38 ` Kevin O'Connor
2015-10-05 9:18 ` Gerd Hoffmann
2015-10-02 8:09 ` Gerd Hoffmann
2015-10-02 13:40 ` Kevin O'Connor
2015-10-02 13:50 ` Laszlo Ersek
2015-10-02 15:24 ` Daniel P. Berrange
2015-10-05 9:26 ` Gerd Hoffmann
2015-10-01 12:16 ` [Qemu-devel] [PATCH v4 7/7] fw_cfg: Define a static signature to be returned on DMA port reads Marc Marí
2015-10-01 16:07 ` Laszlo Ersek
2015-10-01 17:02 ` Kevin O'Connor
2015-10-01 17:17 ` Laszlo Ersek
2015-10-01 13:19 ` [Qemu-devel] [PATCH v4 0/7] fw_cfg DMA interface Kevin O'Connor
2015-10-01 16:03 ` [Qemu-devel] QEMU " Eric Blake
2015-10-01 16:11 ` Eric Blake
2015-10-01 16:19 ` Laszlo Ersek
2015-10-01 16:17 ` Laszlo Ersek
2015-10-01 16:21 ` Eric Blake
2015-10-01 16:34 ` Laszlo Ersek
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