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Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable |
Date: |
Fri, 02 Oct 2015 10:09:17 +0200 |
> - read four bytes from under the fw_cfg selector QEMU_CFG_KERNEL_SIZE
> (0x0008),
> - if it is zero, return -1 --> no kernel boot requested,
> - if it is nonzero, return 0 --> which means "top priority".
>
> In other words, I agree with:
>
> > - option_rom[nb_option_roms].bootindex = 0;
> > + option_rom[nb_option_roms].bootindex = 1;
Hmm. That makes the boot order undefined for "qemu -kernel foo -device
virtio-blk,drive=bar,bootindex=1" when using an old seabios. I don't
think this is a good idea.
cheers,
Gerd
[Qemu-devel] [PATCH v4 2/7] fw_cfg DMA interface documentation, Marc Marí, 2015/10/08
[Qemu-devel] [PATCH v4 1/7] fw_cfg: document fw_cfg_modify_iXX() update functions, Marc Marí, 2015/10/08
[Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Marc Marí, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Laszlo Ersek, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable,
Gerd Hoffmann <=
- Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Kevin O'Connor, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Laszlo Ersek, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Gerd Hoffmann, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Daniel P. Berrange, 2015/10/08
Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Kevin O'Connor, 2015/10/08
Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Laszlo Ersek, 2015/10/08
Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Marc Marí, 2015/10/08
Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Gerd Hoffmann, 2015/10/08
Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Marc Marí, 2015/10/08
Re: [Qemu-devel] [PATCH v4 6/7] Make the kernel image in the fw_cfg DMA interface bootable, Gerd Hoffmann, 2015/10/08