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

["Michael S. Tsirkin" <mst@redhat.com>]

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.

-- 
MST