[Xen-devel] [PATCH OSSTEST v5 09/14] Osstest/Debian: Add "clk_ignore_unused" to default command line

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

dom0 is not aware that some clocks are actually in use (e.g. by the
hypervisor), so this stops the kernel from messing with (specifically,
disabling) those clocks. It's harmless even when not needed.

Really there ought to be some interface to communicate this from Xen
to dom0, or some other mechanism to gate things. See
http://bugs.xenproject.org/xen/bug/45

This bug is present in at least Wheezy and Jessie so apply this
workaround to those.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
v5: Conditional on wheezy|jessie
v3: More verbiage about why this is done
v2: New patch, previously incorrectly included in "Osstest/Debian:
    Workaround oddities in the u-boot script parser."
---
 Osstest/Debian.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Osstest/Debian.pm b/Osstest/Debian.pm
index 146fa94..8b94913 100644
--- a/Osstest/Debian.pm
+++ b/Osstest/Debian.pm
@@ -151,6 +151,9 @@ sub setupboot_uboot ($$$) {
 
        my @xenkopt = uboot_common_kernel_bootargs($ho);
        push @xenkopt, $xenkopt;
+       # http://bugs.xenproject.org/xen/bug/45
+       push @xenkopt, "clk_ignore_unused"
+           if $ho->{Suite} =~ m/wheezy|jessie/;
 
        $xenkopt = join ' ', @xenkopt;
 
-- 
2.1.4


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