[OE-core] [RFC PATCH 0/8] [WIP] runqemu/runqemu-internal: refactor it
Robert Yang
liezhi.yang at windriver.com
Fri May 20 02:31:42 UTC 2016
Hi Nathan,
Thanks, but I'm sorry to say that this is only a RFC, we may change
it a lot, I will talk with RP, and let you when we have progresses.
// Robert
On 05/19/2016 10:57 PM, Nathan Rossi wrote:
> On Tue, May 10, 2016 at 6:13 PM, Robert Yang <liezhi.yang at windriver.com> wrote:
>> Hello,
>>
>> This is still WIP, I send this out to make sure that I won't walk on
>> wrong way too far. Please feel free to give any comments.
>
> Hi Robert,
>
> This is great! So I went ahead and tested out converting the
> qemumicroblaze and qemuzynq machines to work with these changes, as
> well as some additional machines. Here is a meta-xilinx branch
> (https://github.com/nathanrossi/meta-xilinx/tree/nrossi/runqemu-rfc)
> with these changes for anyone who is curious.
>
> Everything seems to work well, I was able to boot all the meta-xilinx
> QEMU machines. Although there were a couple of things that I noticed
> when getting these machines going:
>
> QEMU_DTB, should probably be named QEMU_DTB_OPTIONS or alternatively
> can just be included as part of QEMU_OPTIONS from within the bitbake
> environment. But it would be nice to be able to just define the name
> of the DTB and the runqemu scripts do the finding (like for kernel and
> rootfs).
>
> The "-s" and the "-n" runqemu options add "console=ttyS0" to the
> kernel options regardless of target. For qemuzynq you might have
> noticed the sed expression that overrides it previously
> (http://git.openembedded.org/openembedded-core/tree/scripts/runqemu-internal#n494).
> It is probably worth pulling in serial kernel options from a bitbake
> variable.
>
> Regards,
> Nathan
>
>>
>> TODO:
>> * Update the one which uses runqemu, such as oeqa
>> * Boot EFI image
>> * Boot multilib image such as lib32-foo
>> * Change the vars name such as QEMU_SYSTEM_OPTIONS and
>> QEMU_SECOND_SERIAL_OPT
>> * More testing
>>
>>
>> === Taken from patch 8/8's commit message:
>> * Why refactor
>> The old runqemu had hardcoded machine knowledge, which limited its
>> usage, for example, qemu-system-foo can boot the target, but runqemu
>> can't, and we need edit runqemu/runqemu-internal a lot to support boot
>> it.
>>
>> * Brief introduction on implemention
>> The basic thought is that, machine/bsp developer knows clearly on
>> whether qemu can boot the target or not (QEMU_BOOT_SUPPORTED = "1" or
>> "0"), and how to boot it, so we leave these settings in the machine's
>> configuration.
>> - qemu-boot.bbclass will write machine's info to
>> ${DEPLOY_DIR_IMAGE}/qemu-boot, and runqemu will invoke it.
>> - We need use "runqemu -m <machine>" rather than "runqemu <machine>"
>> since the scripts knows nothing about machine any more, and the
>> similar to other old options, this is good for future's extension.
>> - I have updated all the machine's configuration except qemush4, since
>> I can't find this machine anywhere.
>> - Several machines such as genericx86 and genericx86-64 can be boot by
>> new runqemu without any changes.
>> - Added help info for supported options such as slirp and audio.
>>
>> * Usage
>> Usage: runqemu <options>
>> -m <machine>, specify machine
>> -k <kernel>, specify kernel
>> -r <rootfs>, specify disk image, rootfs or nfs dir
>> -t <fstype>, specify fstypes, supported types:
>> ext[234], jffs2, btrfs, cpio.gz(ramfs), cpio, hddimg,
>> hdddirect, vmdk, wic, qcow2, vdi
>> -n, nographic, disables video console
>> -K, enable KVM when running x86 and x86-64 (VT-capable CPU required)
>> -V, enables KVM with VHOST support when running x86 and x86-64 (VT-capable CPU required)
>> -v, publicvnc - enable a VNC server open to all hosts
>> -u, slirp mode, use user mode networking (no root privilege is required)
>> -a, support audio
>> -s, enable a serial console on /dev/ttyS0
>> -q <qemuparams> - specify custom parameters to QEMU
>> -b <bootparams> - specify custom kernel parameters during boot
>> -p <portnum>, tcp serial port number
>> -B <biosdir>, bios directory
>> -F <biosfilename>, bios filename.
>>
>> Examples:
>> runqemu -m qemuarm -n
>> runqemu -m qemuarm -t ext4
>> runqemu -m qemux86-64 -r core-image-sato -t ext4
>> runqemu -m qemux86 -r path/to/nfsrootdir/
>> runqemu -r path/to/deploy/dir/image/file.vmdk
>> runqemu -m qemumips -q "-m 256"
>> runqemu -m qemuppc -b "psplash=false"
>>
>> // Robert
>>
>> The following changes since commit ece101be5158beee709cdfbb85ecdbdc8d9fb864:
>>
>> test-empty-image: Fix LIC_FILES_CHKSUM typo (2016-05-06 10:47:59 +0100)
>>
>> are available in the git repository at:
>>
>> git://git.openembedded.org/openembedded-core-contrib rbt/runqemu
>> http://cgit.openembedded.org/cgit.cgi/openembedded-core-contrib/log/?h=rbt/runqemu
>>
>> Robert Yang (8):
>> qemu-boot.bbclass: add it for runqemu
>> qemu.inc: set QEMU_BOOT_SUPPORTED to 1
>> qemuarm.conf: set vars for runqemu
>> arch-arm64.inc: set vars for runqemu
>> arch-x86.inc: set vars for runqemu
>> arch-mips.inc: set vars for runqemu
>> arch-powerpc.inc: set vars for runqemu
>> runqemu/runqemu-internal: refactor it
>>
>> meta/classes/image.bbclass | 3 +
>> meta/classes/qemu-boot.bbclass | 39 ++
>> meta/conf/bitbake.conf | 3 +
>> meta/conf/machine/include/arm/arch-arm64.inc | 7 +
>> meta/conf/machine/include/arm/arch-armv6.inc | 2 +
>> meta/conf/machine/include/mips/arch-mips.inc | 5 +
>> meta/conf/machine/include/powerpc/arch-powerpc.inc | 5 +
>> meta/conf/machine/include/qemu.inc | 2 +
>> meta/conf/machine/include/tune-cortexa8.inc | 2 +
>> meta/conf/machine/include/x86/arch-x86.inc | 6 +
>> meta/conf/machine/qemuarm.conf | 3 +
>> scripts/runqemu | 603 +++++++-----------
>> scripts/runqemu-internal | 678 +++++++--------------
>> 13 files changed, 505 insertions(+), 853 deletions(-)
>> create mode 100644 meta/classes/qemu-boot.bbclass
>>
>> --
>> 2.7.4
>>
>> --
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>> Openembedded-core at lists.openembedded.org
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>
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