[Xen-devel] [PATCH v13 08/10] x86: add QoS monitoring related MSRs in allowed list

[Dongxiao Xu <dongxiao.xu@xxxxxxxxx>]

Tool stack will try to access the two MSRs to perform QoS monitoring
related operations, thus added them in the allowed list.

Signed-off-by: Dongxiao Xu <dongxiao.xu@xxxxxxxxx>
---
 xen/arch/x86/platform_hypercall.c | 7 +++++++
 xen/include/asm-x86/msr-index.h   | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/xen/arch/x86/platform_hypercall.c 
b/xen/arch/x86/platform_hypercall.c
index bee0257..9e3d1d6 100644
--- a/xen/arch/x86/platform_hypercall.c
+++ b/xen/arch/x86/platform_hypercall.c
@@ -69,6 +69,13 @@ struct xen_resource_access {
 
 static unsigned int allow_access_msr(unsigned int msr)
 {
+    switch ( msr )
+    {
+    case MSR_IA32_QOSEVTSEL:
+    case MSR_IA32_QMC:
+        return 1;
+    }
+
     return 0;
 }
 
diff --git a/xen/include/asm-x86/msr-index.h b/xen/include/asm-x86/msr-index.h
index f894dfa..7dde06c 100644
--- a/xen/include/asm-x86/msr-index.h
+++ b/xen/include/asm-x86/msr-index.h
@@ -490,6 +490,8 @@
 #define MSR_GEODE_BUSCONT_CONF0                0x00001900
 
 /* Platform QoS MSRs */
+#define MSR_IA32_QOSEVTSEL             0x00000c8d
+#define MSR_IA32_QMC                   0x00000c8e
 #define MSR_IA32_PQR_ASSOC             0x00000c8f
 
 #endif /* __ASM_MSR_INDEX_H */
-- 
1.8.1.5


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