[Xen-devel] [PATCH v2 2/2] tests/mem-sharing: Add bulk option to memshrtool

[Tamas K Lengyel <tamas@xxxxxxxxxxxxx>]

Add the bulk option to the test tool to perform complete deduplication
between domains.

Signed-off-by: Tamas K Lengyel <tlengyel@xxxxxxxxxxx>
Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/tests/mem-sharing/memshrtool.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tools/tests/mem-sharing/memshrtool.c 
b/tools/tests/mem-sharing/memshrtool.c
index 6454bc3..c5e5cb8 100644
--- a/tools/tests/mem-sharing/memshrtool.c
+++ b/tools/tests/mem-sharing/memshrtool.c
@@ -23,6 +23,8 @@ static int usage(const char* prog)
     printf("  nominate <domid> <gfn>  - Nominate a page for sharing.\n");
     printf("  share <domid> <gfn> <handle> <source> <source-gfn> 
<source-handle>\n");
     printf("                          - Share two pages.\n");
+    printf("  bulk <source-domid> <destination-domid>\n");
+    printf("                          - Share all pages between domains.\n");
     printf("  unshare <domid> <gfn>   - Unshare a page by grabbing a writable 
map.\n");
     printf("  add-to-physmap <domid> <gfn> <source> <source-gfn> 
<source-handle>\n");
     printf("                          - Populate a page in a domain with a 
shared page.\n");
@@ -179,6 +181,26 @@ int main(int argc, const char** argv)
         }
         printf("Audit returned %d errors.\n", rc);
     }
+    else if( !strcasecmp(cmd, "bulk") )
+    {
+        domid_t sdomid, cdomid;
+        int rc;
+        unsigned long shared;
+
+        if( argc != 4 )
+            return usage(argv[0]);
+
+        sdomid = strtol(argv[2], NULL, 0);
+        cdomid = strtol(argv[3], NULL, 0);
 
+        rc = xc_memshr_bulk_share(xch, sdomid, cdomid, &shared);
+        if ( rc < 0 )
+        {
+            printf("error executing xc_memshr_bulk_dedup: %s\n", 
strerror(errno));
+            return rc;
+        }
+
+        printf("Successfully shared %lu pages between the domains\n", shared);
+    }
     return 0;
 }
-- 
2.1.4


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