I followed the steps mentioned in  wiki to pull xen code to compile domU
kernel from

1. xen/master, I get following compilation errors. I do see in xen-devel
forum someone else has reported similar issue but no solution yet(patch
provided by Konrad has followup errors)

CC [M]  drivers/watchdog/machzwd.o
  CC [M]  drivers/watchdog/sbc_epx_c3.o
  CC [M]  drivers/watchdog/softdog.o
  CC      drivers/xen/grant-table.o
  CC      drivers/xen/features.o
  CC      drivers/xen/events.o
drivers/xen/events.c:605: error: redefinition of ‘xen_destroy_irq’
/root/kernel/linux.2-6.xen/arch/x86/include/asm/xen/pci.h:29: error:
previous definition of ‘xen_destroy_irq’ was here
drivers/xen/events.c:637: error: redefinition of ‘xen_create_msi_irq’
/root/kernel/linux.2-6.xen/arch/x86/include/asm/xen/pci.h:25: error:
previous definition of ‘xen_create_msi_irq’ was here
make[2]: *** [drivers/xen/events.o] Error 1
make[1]: *** [drivers/xen] Error 2
make: *** [drivers] Error 2

2. xen/stable, I get following errors

 CC      drivers/pci/xen-pcifront.o
drivers/pci/xen-pcifront.c:373: error: variable ‘pci_frontend_ops’ has
initializut incomplete type
drivers/pci/xen-pcifront.c:374: error: unknown field ‘enable_msi’
specified in ializer
drivers/pci/xen-pcifront.c:374: warning: excess elements in struct
initializer
drivers/pci/xen-pcifront.c:374: warning: (near initialization for
‘pci_frontend_op)’
drivers/pci/xen-pcifront.c:375: error: unknown field ‘disable_msi’
specified in ializer
drivers/pci/xen-pcifront.c:375: warning: excess elements in struct
initializer
drivers/pci/xen-pcifront.c:375: warning: (near initialization for
‘pci_frontend_op)’
drivers/pci/xen-pcifront.c:376: error: unknown field ‘enable_msix’
specified in ializer
drivers/pci/xen-pcifront.c:376: warning: excess elements in struct
initializer
drivers/pci/xen-pcifront.c:376: warning: (near initialization for
‘pci_frontend_op)’
drivers/pci/xen-pcifront.c:377: error: unknown field ‘disable_msix’
specified intializer
drivers/pci/xen-pcifront.c:377: warning: excess elements in struct
initializer
drivers/pci/xen-pcifront.c:377: warning: (near initialization for
‘pci_frontend_op)’
drivers/pci/xen-pcifront.c: In function ‘pci_frontend_registrar’:
drivers/pci/xen-pcifront.c:383: error: ‘xen_pci_frontend’ undeclared
(first use his function)
drivers/pci/xen-pcifront.c:383: error: (Each undeclared identifier is
reported only once
drivers/pci/xen-pcifront.c:383: error: for each function it appears in.)
make[2]: *** [drivers/pci/xen-pcifront.o] Error 1
make[1]: *** [drivers/pci] Error 2
make: *** [drivers] Error 2

Kindly let me know how to proceed on this.

Thanks