[Qemu-devel] Re: qemu-0.12.2 compiling error (on ppc32/ppc64): kvm.c:50: error: 'struct kvm_sregs' has no member named 'pvr'

[Alexander Graf]

On 25.01.2010, at 11:28, Michael S. Tsirkin wrote:

> On Mon, Jan 25, 2010 at 10:25:30AM +0100, Alexander Graf wrote:
>> 
>> On 24.01.2010, at 22:16, acrux wrote:
>> 
>>> On a powerpc32 (Apple G4) system:
>>> gnu/linux distribution: CRUX PPC 2.6 (32bit)
>>> toolchain: binutils-2.20, gcc-4.4.3, glibc-2.11
>>> kernel: linux-2.6.32.5 
>>> 
>>> [...]
>>> AR    mips64el-softmmu/libqemu.a
>>> LINK  mips64el-softmmu/qemu-system-mips64el
>>> GEN   config-target.h
>>> GEN   ppc-softmmu/qemu-options.h
>>> CC    ppc-softmmu/vl.o
>>> CC    ppc-softmmu/async.o
>>> GEN   ppc-softmmu/qemu-monitor.h
>>> CC    ppc-softmmu/monitor.o
>>> CC    ppc-softmmu/pci.o
>>> CC    ppc-softmmu/pci_host.o
>>> CC    ppc-softmmu/pcie_host.o
>>> CC    ppc-softmmu/machine.o
>>> CC    ppc-softmmu/gdbstub.o
>>> CC    ppc-softmmu/virtio-blk.o
>>> CC    ppc-softmmu/virtio-balloon.o
>>> CC    ppc-softmmu/virtio-net.o
>>> CC    ppc-softmmu/virtio-console.o
>>> CC    ppc-softmmu/virtio-pci.o
>>> CC    ppc-softmmu/kvm.o
>>> /home/ports/qemu/work/src/qemu-0.12.2/target-ppc/kvm.c: In function 
>>> 'kvm_arch_init_vcpu':
>>> /home/ports/qemu/work/src/qemu-0.12.2/target-ppc/kvm.c:50: error: 'struct 
>>> kvm_sregs' has no member named 'pvr'
>> 
>> Ugh. Please use --disable-kvm on such old kernel versions. KVM doesn't work 
>> on G4s (yet) anyway.
>> I guess I'll need to add a minimum version check for KVM on ppc.
>> 
>>> make[1]: *** [kvm.o] Error 1
>>> make: *** [subdir-ppc-softmmu] Error 2
>>> 
>>> 
>>> Instead on a powerpc64 (IBM POWER4+) system:
>>> gnu/linux distribution: CRUX PPC 2.6 (64bit)
>>> toolchain: binutils-2.20, gcc-4.4.3, glibc-2.11
>>> kernel: linux-2.6.30.9
>>> 
>>> [...]
>>> CC    ppc64-softmmu/pcie_host.o
>>> CC    ppc64-softmmu/machine.o
>>> CC    ppc64-softmmu/gdbstub.o
>>> CC    ppc64-softmmu/virtio-blk.o
>>> CC    ppc64-softmmu/virtio-balloon.o
>>> CC    ppc64-softmmu/virtio-net.o
>>> CC    ppc64-softmmu/virtio-console.o
>>> CC    ppc64-softmmu/virtio-pci.o
>>> CC    ppc64-softmmu/kvm.o
>>> /home/ports/qemu/work/src/qemu-0.12.2/target-ppc/kvm.c: In function 
>>> 'kvm_arch_init_vcpu':
>>> /home/ports/qemu/work/src/qemu-0.12.2/target-ppc/kvm.c:50: error: 'struct 
>>> kvm_sregs' has no member named 'pvr'
>> 
>> Same as above with the difference that PPC64 can actually use KVM. So if you 
>> like to use KVM, please update your host kernel.
>> 
>> Alex
> 
> Another solution would be to ship the necessary headers with qemu source:
> host kernel might get changed without all programs being rebuilt.

That discussion is coming up every other month. I think the conclusion so far 
was that ppl don't want to include the kvm headers in qemu.

I'm personally all for it. That'd also make the luvally builds easier.

Alex