Re: [Qemu-devel] Using virtio-mmio

["Yao Xingtao" <yaoxt.fnst@cn.fujitsu.com>]

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发件人：Erlon Cruz
发送日期：2013-08-03 03:57:09
收件人：Richard W.M. Jones
抄送：Peter Maydell; qemu-devel
主题：Re: [Qemu-devel] Using virtio-mmio

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发件人：Erlon Cruz
发送日期：2013-08-03 03:57:09
收件人：Richard W.M. Jones
抄送：Peter Maydell; qemu-devel
主题：Re: [Qemu-devel] Using virtio-mmio

>Hi, Im trying to test virtio-mmio too but Im having no success to boot
>vexpress-a9.
>kernel:  Linux 3.10-rc6 -> vexpress_defconfig
>qemu: 1.6.0-rc0
>cmd line:
>
>qemu-system-arm\
>-m 512\
>-M vexpress-a9\
>-kernel arch/arm/boot/zImage\
> -initrd boot-kernels/initrd-modified.img \
>-append  "root=/dev/mmcblk0p2 console=ttyAMA0 rootwait debug earlyprintk"\
> -sd /exports/vexpress/vexpress-a9-nano.img\
>-monitor unix:/dev/tty1,nowait,server\
>-serial stdio\
>  -d in_asm,cpu -D /tmp/qemu.log -singlestep
>
>Here I get the 'total no output' error. I tried with vexpress-v2p-ca9.dtb
>and from 'remotes/linaro/v3.9/vexpress'  but got the same.
>
>With,
>
>qemu-system-arm\
>-m 512\
> -M vexpress-a15\
>-kernel  arch/arm/boot/zImage\
>-initrd boot-kernels/initrd-modified.img\
> -append  "root=/dev/mmcblk0p2 console=ttyAMA0 rootwait debug earlyprintk"\
>-dtb arch/arm/boot/dts/vexpress-v2p-ca15_a7.dtb'\
> -sd /exports/vexpress/vexpress-a9-nano.img\
>-monitor unix:/dev/tty1,nowait,server\
> -serial stdio
>
>The kernel boots, but it cant mount the SD:
>
Hi：
>mmc0: host doesn't support card's voltages
>mmc0: error -22 whilst initialising SD card
This is an error from kernel, means that your MMC controler couldn't supply 
an available  voltages. You should find which register contains the 
voltages information in pl181.c.   
>SD: Unknown CMD1
Dose your sdcard image have any partition information? 
>
>
>Am I missing something??
>
>
>Kind Regards,
>Erlon
>

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2013-08-03