[Xen-devel] [OSSTEST PATCH 5/9] Debian HVM guests: Honour guest disk and ram size runvars

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

From: Robert Ho <robert.hu@xxxxxxxxx>

Allow runvars to specify guest disk and ram size, turning previous
values into defaults:

The default disk size for the guest is `10000M' which is not going to
be sufficient for nested HVM tests.  We are going to want to use a
larger disk size for the nested L1.  The appropriate disk_size will be
defined in make-flight, in forthcoming changes.

Also, also allow ram size to be defined by runvar.  The runvar takes
precedence over the default (which is calculated based on host RAM
etc.)

No functional change with current sets of runvars.

Signed-off-by: Robert Ho <robert.hu@xxxxxxxxx>
Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 Osstest/TestSupport.pm |    3 ++-
 ts-debian-hvm-install  |   14 ++++++++++----
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/Osstest/TestSupport.pm b/Osstest/TestSupport.pm
index 7ba51ec..d966fe1 100644
--- a/Osstest/TestSupport.pm
+++ b/Osstest/TestSupport.pm
@@ -1745,7 +1745,8 @@ sub target_put_guest_image ($$;$) {
 
 sub more_prepareguest_hvm ($$$$;@) {
     my ($ho, $gho, $ram_mb, $disk_mb, %xopts) = @_;
-    
+    # $ram_mb and $disk_mb are defaults, used if runvars don't say 
+
     my $passwd= 'xenvnc';
 
     prepareguest_part_lvmdisk($ho, $gho, $disk_mb);
diff --git a/ts-debian-hvm-install b/ts-debian-hvm-install
index 5fb6f4c..f2fc31b 100755
--- a/ts-debian-hvm-install
+++ b/ts-debian-hvm-install
@@ -220,13 +220,19 @@ sub prep () {
     my $host_freemem_mb = host_get_free_memory($ho);
     my $ram_minslop = 100;
     my $ram_lots = 5000;
-    if ($host_freemem_mb > $ram_lots * 2 + $ram_minslop) {
-        $ram_mb = $ram_lots;
-    } else {
-        $ram_mb = 768;
+
+    $ram_mb = guest_var($gho,'memsize',undef);
+    if (!$ram_mb) {
+         if ($host_freemem_mb > $ram_lots * 2 + $ram_minslop) {
+              $ram_mb = $ram_lots;
+         } else {
+              $ram_mb = 768;
+         }
     }
     logm("Host has $host_freemem_mb MB free memory, setting guest memory size 
to $ram_mb MB");
 
+    $disk_mb= guest_var($gho,'disksize',$disk_mb);
+
     more_prepareguest_hvm($ho,$gho, $ram_mb, $disk_mb,
                           OnReboot => 'preserve',
                           Bios => $r{bios},
-- 
1.7.10.4


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