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xen: move xc_interface compatibility fallback further up the file 

We are going to want to use the dummy xendevicemodel_handle type in
new stub functions in the CONFIG_XEN_CTRL_INTERFACE_VERSION < 41000
section.  So we need to provide that definition, or (as applicable)
include the appropriate header, earlier in the file.

(Ideally the newer compatibility layers would be at the bottom of the
file, so that they can naturally benefit from the compatibility layers
for earlier version.  But that's rather too much for this series.)

No functional change.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
This commit is contained in:
Ian Jackson 2017-10-03 18:51:05 +01:00 committed by Ian Jackson
parent 74aae6bff4
commit 85f3c64da3
1 changed files with 11 additions and 7 deletions
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18
include/hw/xen/xen_common.h
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@ -78,6 +78,17 @@ static inline void *xenforeignmemory_map(xc_interface *h, uint32_t dom,
extern xenforeignmemory_handle *xen_fmem;
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40900
typedef xc_interface xendevicemodel_handle;
#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40900 */
#undef XC_WANT_COMPAT_DEVICEMODEL_API
#include <xendevicemodel.h>
#endif
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41000
#define XEN_COMPAT_PHYSMAP
@ -105,8 +116,6 @@ static inline int xentoolcore_restrict_all(domid_t domid)
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40900
typedef xc_interface xendevicemodel_handle;
static inline xendevicemodel_handle *xendevicemodel_open(
struct xentoollog_logger *logger, unsigned int open_flags)
{
@ -228,11 +237,6 @@ static inline int xendevicemodel_set_mem_type(
return xc_hvm_set_mem_type(dmod, domid, mem_type, first_pfn, nr);
}
#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40900 */
#undef XC_WANT_COMPAT_DEVICEMODEL_API
#include <xendevicemodel.h>
#endif
extern xendevicemodel_handle *xen_dmod;