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| author | Keir Fraser <keir.fraser@citrix.com> | 2007-11-16 17:03:46 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2007-11-16 17:03:46 +0000 |
| commit | 6d11c3493a4d8cc81ec9dc0f65a459bc45df676e (patch) | |
| tree | a78c39de945093414bb2ac84e1eefebeb9fe6689 /tools/libxc/xc_linux.c | |
| parent | cee481a4a06bcfb86a2e6edb60f08791e1fa4202 (diff) | |
| download | xen-6d11c3493a4d8cc81ec9dc0f65a459bc45df676e.tar.gz xen-6d11c3493a4d8cc81ec9dc0f65a459bc45df676e.tar.bz2 xen-6d11c3493a4d8cc81ec9dc0f65a459bc45df676e.zip | |
qemu: more verbose on failures.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Diffstat (limited to 'tools/libxc/xc_linux.c')
| -rw-r--r-- | tools/libxc/xc_linux.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/tools/libxc/xc_linux.c b/tools/libxc/xc_linux.c index 8212180beb..32aaab819b 100644 --- a/tools/libxc/xc_linux.c +++ b/tools/libxc/xc_linux.c @@ -67,8 +67,10 @@ void *xc_map_foreign_batch(int xc_handle, uint32_t dom, int prot, privcmd_mmapbatch_t ioctlx; void *addr; addr = mmap(NULL, num*PAGE_SIZE, prot, MAP_SHARED, xc_handle, 0); - if ( addr == MAP_FAILED ) + if ( addr == MAP_FAILED ) { + perror("xc_map_foreign_batch: mmap failed"); return NULL; + } ioctlx.num=num; ioctlx.dom=dom; @@ -77,7 +79,7 @@ void *xc_map_foreign_batch(int xc_handle, uint32_t dom, int prot, if ( ioctl(xc_handle, IOCTL_PRIVCMD_MMAPBATCH, &ioctlx) < 0 ) { int saved_errno = errno; - perror("XXXXXXXX"); + perror("xc_map_foreign_batch: ioctl failed"); (void)munmap(addr, num*PAGE_SIZE); errno = saved_errno; return NULL; @@ -94,8 +96,10 @@ void *xc_map_foreign_range(int xc_handle, uint32_t dom, privcmd_mmap_entry_t entry; void *addr; addr = mmap(NULL, size, prot, MAP_SHARED, xc_handle, 0); - if ( addr == MAP_FAILED ) + if ( addr == MAP_FAILED ) { + perror("xc_map_foreign_range: mmap failed"); return NULL; + } ioctlx.num=1; ioctlx.dom=dom; @@ -106,6 +110,7 @@ void *xc_map_foreign_range(int xc_handle, uint32_t dom, if ( ioctl(xc_handle, IOCTL_PRIVCMD_MMAP, &ioctlx) < 0 ) { int saved_errno = errno; + perror("xc_map_foreign_range: ioctl failed"); (void)munmap(addr, size); errno = saved_errno; return NULL; @@ -402,6 +407,7 @@ void *xc_gnttab_map_grant_ref(int xcg_handle, int saved_errno = errno; struct ioctl_gntdev_unmap_grant_ref unmap_grant; /* Unmap the driver slots used to store the grant information. */ + perror("xc_gnttab_map_grant_ref: mmap failed"); unmap_grant.index = map.index; unmap_grant.count = 1; ioctl(xcg_handle, IOCTL_GNTDEV_UNMAP_GRANT_REF, &unmap_grant); @@ -445,6 +451,7 @@ void *xc_gnttab_map_grant_refs(int xcg_handle, int saved_errno = errno; struct ioctl_gntdev_unmap_grant_ref unmap_grant; /* Unmap the driver slots used to store the grant information. */ + perror("xc_gnttab_map_grant_refs: mmap failed"); unmap_grant.index = map->index; unmap_grant.count = count; ioctl(xcg_handle, IOCTL_GNTDEV_UNMAP_GRANT_REF, &unmap_grant); |