Re: [Qemu-devel] [PATCH qemu v10 00/14] spapr: vfio: Enable Dynamic DMA windows (DDW)

[Thomas Huth <thuth@redhat.com>]

On Tue, 7 Jul 2015 02:07:36 +1000
Alexey Kardashevskiy <aik@ozlabs.ru> wrote:

> On 07/07/2015 01:54 AM, Thomas Huth wrote:
> > On Mon,  6 Jul 2015 12:10:56 +1000
> > Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
> > ...
> >>
> >> This patchset adds DDW support for pseries. The host kernel changes are
> >> required, available in the current upstream.
> >>
> >> This patchset is based on git://github.com/dgibson/qemu.git spapr-next branch.
> >>
> >> Please comment. Thanks!
> >
> >   Alexey,
> >
> > I'm sorry, but it looks like this patch set badly fails to link when
> > compiling for a non-Linux target:
> >
> >    LINK  ppc64-softmmu/qemu-system-ppc64.exe
> > hw/ppc/spapr_pci.o: In function `spapr_phb_dma_capabilities_update':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:785: undefined reference to `spapr_phb_vfio_dma_capabilities_update'
> > hw/ppc/spapr_pci.o: In function `rtas_ibm_configure_pe':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:601: undefined reference to `spapr_phb_vfio_eeh_configure'
> > hw/ppc/spapr_pci.o: In function `rtas_ibm_set_slot_reset':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:573: undefined reference to `spapr_phb_vfio_eeh_reset'
> > hw/ppc/spapr_pci.o: In function `rtas_ibm_read_slot_reset_state2':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:533: undefined reference to `spapr_phb_vfio_eeh_get_state'
> > hw/ppc/spapr_pci.o: In function `rtas_ibm_set_eeh_option':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:455: undefined reference to `spapr_phb_vfio_eeh_set_option'
> > hw/ppc/spapr_pci.o: In function `spapr_phb_hotplug_dma_sync':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:884: undefined reference to `spapr_phb_vfio_dma_remove_window'
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:894: undefined reference to `spapr_phb_vfio_dma_init_window'
> > hw/ppc/spapr_pci.o: In function `spapr_phb_dma_init_window':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:805: undefined reference to `spapr_phb_vfio_dma_init_window'
> > hw/ppc/spapr_pci.o: In function `spapr_phb_dma_remove_window':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:834: undefined reference to `spapr_phb_vfio_dma_remove_window'
> > hw/ppc/spapr_pci.o: In function `spapr_phb_reset':
> > /home/thuth/devel/qemu/hw/ppc/spapr_pci.c:1538: undefined reference to `spapr_phb_vfio_eeh_reenable'
> > collect2: error: ld returned 1 exit status
> >
> > Please make sure that this series also works if either CONFIG_LINUX
> > or CONFIG_PCI are not enabled!
> 
> 
> Oh. How exactly did you configure qemu to get this?

I installed the mingw64 cross compiler packages (and likely some
additional library packages like mingw64-zlib, -pixman, etc.), and then
ran configure like this:

configure' --cc=x86_64-w64-mingw32-gcc --cross-prefix=x86_64-w64-mingw32- --target-list=ppc64-softmmu

 Thomas