[Xen-changelog] [xen master] xen: arm: Do not expose PMU to domain 0

[patchbot@xxxxxxx]

commit d45e9b7c53428a2aa4d067927e7ef5e30783fb8b
Author:     Ian Campbell <ian.campbell@xxxxxxxxxx>
AuthorDate: Wed Jun 17 13:37:00 2015 +0100
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Wed Jun 17 14:07:16 2015 +0100

    xen: arm: Do not expose PMU to domain 0
    
    It uses a PPI which we cannot route to a guest, and will surely need
    more support than just that anyway.
    
    I noticed this on Mustang with UEFI where the built in DTB contains a
    node of this type.
    
    According to linux/Documentation/devicetree/bindings/arm/pmu.txt the
    ARM v7 (Cortex-A{7,15}) PMUs require a PPI too, so blacklist them as
    well.
    
    Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
    Reviewed-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 xen/arch/arm/domain_build.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 1e545fe..e9cb8a9 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -1105,6 +1105,9 @@ static int handle_node(struct domain *d, struct 
kernel_info *kinfo,
         DT_MATCH_COMPATIBLE("multiboot,module"),
         DT_MATCH_COMPATIBLE("arm,psci"),
         DT_MATCH_COMPATIBLE("arm,psci-0.2"),
+        DT_MATCH_COMPATIBLE("arm,cortex-a7-pmu"),
+        DT_MATCH_COMPATIBLE("arm,cortex-a15-pmu"),
+        DT_MATCH_COMPATIBLE("arm,armv8-pmuv3"),
         DT_MATCH_PATH("/cpus"),
         DT_MATCH_TYPE("memory"),
         /* The memory mapped timer is not supported by Xen. */
--
generated by git-patchbot for /home/xen/git/xen.git#master

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