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From: Chao Peng <chao.p.peng@linux.intel.com>
To: xen-devel@lists.xen.org
Cc: keir@xen.org, Ian.Campbell@citrix.com,
	stefano.stabellini@eu.citrix.com, George.Dunlap@eu.citrix.com,
	andrew.cooper3@citrix.com, Ian.Jackson@eu.citrix.com,
	JBeulich@suse.com, dgdegra@tycho.nsa.gov
Subject: [PATCH v14 08/10] x86: add QoS monitoring related MSRs in allowed list
Date: Thu, 28 Aug 2014 15:43:57 +0800	[thread overview]
Message-ID: <1409211839-21718-9-git-send-email-chao.p.peng@linux.intel.com> (raw)
In-Reply-To: <1409211839-21718-1-git-send-email-chao.p.peng@linux.intel.com>

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@intel.com>
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
---
 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 52d89c7..9b75003 100644
--- a/xen/arch/x86/platform_hypercall.c
+++ b/xen/arch/x86/platform_hypercall.c
@@ -68,6 +68,13 @@ struct xen_resource_access {
 
 static bool_t 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 0cf9548..c5b57ba 100644
--- a/xen/include/asm-x86/msr-index.h
+++ b/xen/include/asm-x86/msr-index.h
@@ -329,6 +329,8 @@
 #define MSR_IA32_ENERGY_PERF_BIAS	0x000001b0
 
 /* Platform QoS MSRs */
+#define MSR_IA32_QOSEVTSEL		0x00000c8d
+#define MSR_IA32_QMC			0x00000c8e
 #define MSR_IA32_PQR_ASSOC		0x00000c8f
 
 /* Intel Model 6 */
-- 
1.7.9.5

  parent reply	other threads:[~2014-08-28  7:43 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-28  7:43 [PATCH v14 00/10] enable Cache QoS Monitoring (CQM) feature Chao Peng
2014-08-28  7:43 ` [PATCH v14 01/10] x86: add generic resource (e.g. MSR) access hypercall Chao Peng
2014-08-29 15:40   ` Jan Beulich
2014-09-02  8:33     ` Chao Peng
2014-09-02  8:52       ` Jan Beulich
2014-09-02 10:04         ` Chao Peng
2014-09-02 10:24           ` Jan Beulich
2014-08-28  7:43 ` [PATCH v14 02/10] xsm: add resource operation related xsm policy Chao Peng
2014-08-29 18:55   ` Daniel De Graaf
2014-08-28  7:43 ` [PATCH v14 03/10] tools: provide interface for generic resource access Chao Peng
2014-08-28  7:43 ` [PATCH v14 04/10] x86: detect and initialize Platform QoS Monitoring feature Chao Peng
2014-08-28 10:52   ` Andrew Cooper
2014-09-02  8:40     ` Chao Peng
2014-09-01 11:38   ` Jan Beulich
2014-09-02  9:05     ` Chao Peng
2014-09-02  9:30       ` Jan Beulich
2014-08-28  7:43 ` [PATCH v14 05/10] x86: dynamically attach/detach QoS monitoring service for a guest Chao Peng
2014-09-01 11:39   ` Jan Beulich
2014-08-28  7:43 ` [PATCH v14 06/10] x86: collect global QoS monitoring information Chao Peng
2014-09-01 11:44   ` Jan Beulich
2014-08-28  7:43 ` [PATCH v14 07/10] x86: enable QoS monitoring for each domain RMID Chao Peng
2014-09-01 11:49   ` Jan Beulich
2014-08-28  7:43 ` Chao Peng [this message]
2014-08-28  7:43 ` [PATCH v14 09/10] xsm: add platform QoS related xsm policies Chao Peng
2014-08-28  7:43 ` [PATCH v14 10/10] tools: CMDs and APIs for Platform QoS Monitoring Chao Peng

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