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[v3,2/2] tests/mem-sharing: Add bulk option to memshrtool

Message ID 1463066752-23969-2-git-send-email-tamas@tklengyel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Tamas K Lengyel May 12, 2016, 3:25 p.m. UTC 
Add the bulk option to the test tool to perform complete deduplication
between domains.

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

diff --git a/tools/tests/mem-sharing/memshrtool.c b/tools/tests/mem-sharing/memshrtool.c
index 437c7c9..3e8f467 100644
--- a/tools/tests/mem-sharing/memshrtool.c
+++ b/tools/tests/mem-sharing/memshrtool.c
@@ -24,6 +24,8 @@  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");
@@ -180,6 +182,26 @@  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;
 }