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| author | Paul Durrant <paul.durrant@citrix.com> | 2018-05-17 16:35:50 +0100 |
|---|---|---|
| committer | Stefano Stabellini <sstabellini@kernel.org> | 2018-05-22 11:43:21 -0700 |
| commit | 5c0d914a9ba9e0641554d127b62859ac0e954b9e (patch) | |
| tree | 1509a19728c911255971c0562f4c83371b1f8f3b | |
| parent | 8d0f08e95b2d5f8ff6dea4027247bb0e8cc19cdf (diff) | |
| download | qemu-5c0d914a9ba9e0641554d127b62859ac0e954b9e.zip qemu-5c0d914a9ba9e0641554d127b62859ac0e954b9e.tar.gz qemu-5c0d914a9ba9e0641554d127b62859ac0e954b9e.tar.bz2 | |
xen: add a meaningful declaration of grant_copy_segment into xen_common.h
Currently the xen_disk source has to carry #ifdef exclusions to compile
against Xen older then 4.8. This is a bit messy so this patch lifts the
definition of struct xengnttab_grant_copy_segment and adds it into the
pre-4.8 compat area in xen_common.h, which allows xen_disk to be cleaned
up.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
| -rw-r--r-- | hw/block/xen_disk.c | 18 | ||||
| -rw-r--r-- | include/hw/xen/xen_common.h | 17 |
2 files changed, 15 insertions, 20 deletions
diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c index f74fcd4..78bfb41 100644 --- a/hw/block/xen_disk.c +++ b/hw/block/xen_disk.c @@ -496,8 +496,6 @@ static int ioreq_map(struct ioreq *ioreq) return 0; } -#if CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40800 - static void ioreq_free_copy_buffers(struct ioreq *ioreq) { int i; @@ -579,22 +577,6 @@ static int ioreq_grant_copy(struct ioreq *ioreq) return rc; } -#else -static void ioreq_free_copy_buffers(struct ioreq *ioreq) -{ - abort(); -} - -static int ioreq_init_copy_buffers(struct ioreq *ioreq) -{ - abort(); -} - -static int ioreq_grant_copy(struct ioreq *ioreq) -{ - abort(); -} -#endif static int ioreq_runio_qemu_aio(struct ioreq *ioreq); diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h index 5f1402b..bbf207d 100644 --- a/include/hw/xen/xen_common.h +++ b/include/hw/xen/xen_common.h @@ -667,8 +667,21 @@ static inline int xen_domain_create(xc_interface *xc, uint32_t ssidref, #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40800 - -typedef void *xengnttab_grant_copy_segment_t; +struct xengnttab_grant_copy_segment { + union xengnttab_copy_ptr { + void *virt; + struct { + uint32_t ref; + uint16_t offset; + uint16_t domid; + } foreign; + } source, dest; + uint16_t len; + uint16_t flags; + int16_t status; +}; + +typedef struct xengnttab_grant_copy_segment xengnttab_grant_copy_segment_t; static inline int xengnttab_grant_copy(xengnttab_handle *xgt, uint32_t count, xengnttab_grant_copy_segment_t *segs) |