qemu-kvm doesn't work with qemu-x86_64_defconfig

qemu-kvm doesn't work with qemu-x86_64_defconfig

[Matwey V. Kornilov]

Hello,

I am trying to build master for qemu-x86_64_defconfig. When I try to
boot u-boot.rom as the following everything works fine:

> qemu-system-x86_64 -nographic -bios u-boot.rom

U-Boot SPL 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)
Trying to boot from SPI
Jumping to 64-bit U-Boot: Note many features are missing


U-Boot 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)

CPU:   QEMU Virtual CPU version 2.5+
DRAM:  128 MiB
Loading Environment from nowhere... OK
Incorrect expansion ROM header signature 4daa
Model: QEMU x86 (I440FX)
Net:   e1000: 52:54:00:12:34:56
       eth0: e1000#0
Hit any key to stop autoboot:  0


When I try to enable KVM as the following, the boot process hangs:

> qemu-system-x86_64 -enable-kvm -cpu host -nographic -bios u-boot.rom

U-Boot SPL 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)
Trying to boot from SPI
Jumping to 64-bit U-Boot: Note many features are missing


What have I missed? Maybe KVM is just not supported?

Re: qemu-kvm doesn't work with qemu-x86_64_defconfig

[Bin Meng]

+Simon

On Wed, Jul 28, 2021 at 11:22 PM Matwey V. Kornilov
<matwey.kornilov@gmail.com> wrote:
>
> Hello,
>
> I am trying to build master for qemu-x86_64_defconfig. When I try to
> boot u-boot.rom as the following everything works fine:
>
> > qemu-system-x86_64 -nographic -bios u-boot.rom
>
> U-Boot SPL 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)
> Trying to boot from SPI
> Jumping to 64-bit U-Boot: Note many features are missing
>
>
> U-Boot 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)
>
> CPU:   QEMU Virtual CPU version 2.5+
> DRAM:  128 MiB
> Loading Environment from nowhere... OK
> Incorrect expansion ROM header signature 4daa
> Model: QEMU x86 (I440FX)
> Net:   e1000: 52:54:00:12:34:56
>        eth0: e1000#0
> Hit any key to stop autoboot:  0
>
>
> When I try to enable KVM as the following, the boot process hangs:
>
> > qemu-system-x86_64 -enable-kvm -cpu host -nographic -bios u-boot.rom
>
> U-Boot SPL 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)
> Trying to boot from SPI
> Jumping to 64-bit U-Boot: Note many features are missing
>
>
> What have I missed? Maybe KVM is just not supported?
>

Yep, at least I did not test u-boot with KVM.

Regards,
Bin

Re: qemu-kvm doesn't work with qemu-x86_64_defconfig

[Matwey V. Kornilov]

чт, 29 июл. 2021 г. в 08:22, Bin Meng <bmeng.cn@gmail.com>:
>
> +Simon
>
> On Wed, Jul 28, 2021 at 11:22 PM Matwey V. Kornilov
> <matwey.kornilov@gmail.com> wrote:
> >
> > Hello,
> >
> > I am trying to build master for qemu-x86_64_defconfig. When I try to
> > boot u-boot.rom as the following everything works fine:
> >
> > > qemu-system-x86_64 -nographic -bios u-boot.rom
> >
> > U-Boot SPL 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)
> > Trying to boot from SPI
> > Jumping to 64-bit U-Boot: Note many features are missing
> >
> >
> > U-Boot 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)
> >
> > CPU:   QEMU Virtual CPU version 2.5+
> > DRAM:  128 MiB
> > Loading Environment from nowhere... OK
> > Incorrect expansion ROM header signature 4daa
> > Model: QEMU x86 (I440FX)
> > Net:   e1000: 52:54:00:12:34:56
> >        eth0: e1000#0
> > Hit any key to stop autoboot:  0
> >
> >
> > When I try to enable KVM as the following, the boot process hangs:
> >
> > > qemu-system-x86_64 -enable-kvm -cpu host -nographic -bios u-boot.rom
> >
> > U-Boot SPL 2021.10-rc1-00027-g22ecb12132 (Jul 28 2021 - 18:18:37 +0300)
> > Trying to boot from SPI
> > Jumping to 64-bit U-Boot: Note many features are missing
> >
> >
> > What have I missed? Maybe KVM is just not supported?
> >
>
> Yep, at least I did not test u-boot with KVM.

Thanks for confirmation. In any case, u-boot works very quickly even
without KVM.

>
> Regards,
> Bin



-- 
With best regards,
Matwey V. Kornilov