[Xen-devel] [PATCH 8 of 8] libxl: proper accounting for the videoram

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

libxl: proper accounting for the videoram

Remove the videoram from the memory target of the domains consistently,
leave the total amount of memory in maxmem.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

diff -r d740144dfc1c tools/libxl/libxl.c
--- a/tools/libxl/libxl.c       Thu Aug 26 18:56:19 2010 +0100
+++ b/tools/libxl/libxl.c       Thu Aug 26 18:56:47 2010 +0100
@@ -2865,11 +2865,12 @@ retry_transaction:
         libxl_xs_write(&gc, t, libxl_sprintf(&gc, "%s/memory/static-max", 
dompath), "%"PRIu32, target_memkb);
     }
 
-    rc = xc_domain_memory_set_pod_target(ctx->xch, domid, (target_memkb - 
videoram) / 4, NULL, NULL, NULL);
+    target_memkb -= videoram;
+    rc = xc_domain_memory_set_pod_target(ctx->xch, domid, target_memkb / 4, 
NULL, NULL, NULL);
     if (rc != 0) {
         XL_LOG_ERRNO(ctx, XL_LOG_ERROR,
                 "xc_domain_memory_set_pod_target domid=%d, memkb=%d "
-                "failed rc=%d\n", domid, (target_memkb - videoram) / 4,
+                "failed rc=%d\n", domid, target_memkb / 4,
                 rc);
         abort = 1;
         goto out;
@@ -2977,11 +2978,12 @@ retry_transaction:
         libxl_xs_write(&gc, t, libxl_sprintf(&gc, "%s/memory/static-max", 
dompath), "%"PRIu32, memorykb);
     }
 
-    rc = xc_domain_memory_set_pod_target(ctx->xch, domid, (new_target_memkb - 
videoram) / 4, NULL, NULL, NULL);
+    new_target_memkb -= videoram;
+    rc = xc_domain_memory_set_pod_target(ctx->xch, domid, new_target_memkb / 
4, NULL, NULL, NULL);
     if (rc != 0) {
         XL_LOG_ERRNO(ctx, XL_LOG_ERROR,
                 "xc_domain_memory_set_pod_target domid=%d, memkb=%d "
-                "failed rc=%d\n", domid, (new_target_memkb - videoram) / 4,
+                "failed rc=%d\n", domid, new_target_memkb / 4,
                 rc);
         abort = 1;
         goto out;
diff -r d740144dfc1c tools/libxl/libxl_dom.c
--- a/tools/libxl/libxl_dom.c   Thu Aug 26 18:56:19 2010 +0100
+++ b/tools/libxl/libxl_dom.c   Thu Aug 26 18:56:47 2010 +0100
@@ -100,7 +100,7 @@ int build_post(libxl_ctx *ctx, uint32_t 
     ents[0] = "memory/static-max";
     ents[1] = libxl_sprintf(&gc, "%d", info->max_memkb);
     ents[2] = "memory/target";
-    ents[3] = libxl_sprintf(&gc, "%d", info->target_memkb);
+    ents[3] = libxl_sprintf(&gc, "%d", info->target_memkb - info->video_memkb);
     ents[4] = "memory/videoram";
     ents[5] = libxl_sprintf(&gc, "%d", info->video_memkb);
     ents[6] = "domid";
@@ -230,7 +230,7 @@ int build_hvm(libxl_ctx *ctx, uint32_t d
     ret = xc_hvm_build_target_mem(
         ctx->xch,
         domid,
-        (info->max_memkb - info->video_memkb) / 1024,
+        info->max_memkb / 1024,
         (info->target_memkb - info->video_memkb) / 1024,
         libxl_abs_path(&gc, (char *)info->kernel.path,
                        libxl_xenfirmwaredir_path()));

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