From: Julien Grall <julien.gr...@linaro.org>
Linux may not use the same page granularity as Xen. This will result to
a domain crash because it will try to map more page than required.
As the xenstore page size willl always be equal to a Xen page size, use
XC_PAGE_SIZE.
Signed-off-by: Julien Grall <julien.gr...@citrix.com>
---
tools/xenstore/xenstored_domain.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/xenstore/xenstored_domain.c
b/tools/xenstore/xenstored_domain.c
index 6d0394d..0776e39 100644
--- a/tools/xenstore/xenstored_domain.c
+++ b/tools/xenstore/xenstored_domain.c
@@ -172,7 +172,7 @@ static void *map_interface(domid_t domid, unsigned long mfn)
GNTTAB_RESERVED_XENSTORE, PROT_READ|PROT_WRITE);
} else {
return xc_map_foreign_range(*xc_handle, domid,
- getpagesize(), PROT_READ|PROT_WRITE, mfn);
+ XC_PAGE_SIZE, PROT_READ|PROT_WRITE, mfn);
}
}
@@ -181,7 +181,7 @@ static void unmap_interface(void *interface)
if (*xcg_handle != NULL)
xc_gnttab_munmap(*xcg_handle, interface, 1);
else
- munmap(interface, getpagesize());
+ munmap(interface, XC_PAGE_SIZE);
}
static int destroy_domain(void *_domain)
--
2.1.4
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