From: Ian Campbell Date: Wed, 17 Jun 2015 12:37:00 +0000 (+0100) Subject: xen: arm: Do not expose PMU to domain 0 X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~3080 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=d45e9b7c53428a2aa4d067927e7ef5e30783fb8b;p=xen.git 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 Reviewed-by: Julien Grall --- diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index 1e545fe560..e9cb8a9fdb 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. */