[PATCH v6 7/8] tools/xenstored: Remove stubdom special casing

[Jason Andryuk <jason.andryuk@xxxxxxx>]

posix.c and minios.c implement the same named functions serving slightly
different purposes.

For xenbus_map()
posix.c maps the local /dev/xen/xsd_kva
minios.c maps dom0 via grant and there is open coding for stub_domid in
map_interface.

Change xenbus_map() to map the local domain's interface.  The default
grant table mapping is performed otherwise.

Signed-off-by: Jason Andryuk <jason.andryuk@xxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
---
v6:
R-b: Juergen

v5:
Re-order later
---
 tools/xenstored/domain.c | 5 -----
 tools/xenstored/minios.c | 4 +---
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/tools/xenstored/domain.c b/tools/xenstored/domain.c
index e282b5c5ed..cf5a54965a 100644
--- a/tools/xenstored/domain.c
+++ b/tools/xenstored/domain.c
@@ -512,11 +512,6 @@ static void *map_interface(domid_t domid)
        if (domid == store_domid)
                return xenbus_map();
 
-#ifdef __MINIOS__
-       if (domid == stub_domid)
-               return xenstore_buf;
-#endif
-
        return xengnttab_map_grant_ref(*xgt_handle, domid,
                                       GNTTAB_RESERVED_XENSTORE,
                                       PROT_READ|PROT_WRITE);
diff --git a/tools/xenstored/minios.c b/tools/xenstored/minios.c
index 60d921cf01..a214e23907 100644
--- a/tools/xenstored/minios.c
+++ b/tools/xenstored/minios.c
@@ -61,13 +61,11 @@ evtchn_port_t get_domain_evtchn(unsigned int domid)
 
 void *xenbus_map(void)
 {
-       return xengnttab_map_grant_ref(*xgt_handle, xenbus_master_domid(),
-                       GNTTAB_RESERVED_XENSTORE, PROT_READ|PROT_WRITE);
+       return xenstore_buf;
 }
 
 void unmap_xenbus(void *interface)
 {
-       xengnttab_unmap(*xgt_handle, interface, 1);
 }
 
 void early_init(bool live_update, bool dofork, const char *pidfile)
-- 
2.50.1