[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[PATCH v6 06/18] xen/sysctl: wrap around XEN_SYSCTL_perfc_op


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Penny Zheng <Penny.Zheng@xxxxxxx>
  • Date: Fri, 4 Jul 2025 17:29:40 +0800
  • Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=lists.xenproject.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0)
  • Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=WItGqxAhxBw21f3KfwdiFUW2nn+4erXPhuSpx0xV6H8=; b=X0OBKC7aSf/hWcLLcVv+avn/D2tGLe7TXwDtv2eAK/MljO/6dO2L7kR24sh831OKpBAXRds9GKvlDgjANKi2oZudAAAu0jXAsTxk2EEC1WewZzqg8qB8f2H+LUxUWtLSH3BPrauf2k2SfLMm0fGg+EA1vy6KCCcpat/vVIZYcXC3y2/kVCB+H9+mmyhWsvaMuwPMSqFaYIXwa9mC4rt20hy3FEeGCQqHGYiyAAEuWb6P48kDRMwP+uL8aFf104CvQLeXqYT1vrzYuA7U4ijt2tJbNol99BRiLvK4oToHAcgnDB9W/k4odaKo5TIAnZs4Sv+Onu5Pi34JL0ZUbvnUMw==
  • Arc-seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=t8fmnyN1TzSscwTQZJO3qTYicKpw0wdcO9RhR61mfMQy71UDLXiponrjZ8z+zneBMmH2HjRpE4Q32agrae+RzeMnG/K2JPucSV40epnGcEPrbWLyjcnwyFM7ZStDGQKkWlM21R3sdXU243YYdYo/8iJMd3HyH1Vs05OhVpKE/ROn1tZTDtOV6be/5FWk37hJUru3JMJn9EmPwyR5/MvWY0Fmij5lww/2qvu4U3+6fYM9h4H95TSz2nJvUFMnu+WZF+guOuf8JxLH6fC9XG4MtYPTRPD8V5fwA4cs69tmKDecCvtzI5f6n8vxHlbSg/Uk+qB9LsoQYEO5Ga9PWo677w==
  • Cc: <ray.huang@xxxxxxx>, Penny Zheng <Penny.Zheng@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, "Julien Grall" <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
  • Delivery-date: Fri, 04 Jul 2025 09:30:41 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

perfc_control() and perfc_copy_info() are responsible for providing control
of perf counters via XEN_SYSCTL_perfc_op in DOM0, so they both shall
be wrapped.

Signed-off-by: Penny Zheng <Penny.Zheng@xxxxxxx>
Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
v2 -> v3:
- add the blank line
---
v3 -> v4:
- remove transient "#ifdef CONFIG_SYSCTL"
---
 xen/common/perfc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/common/perfc.c b/xen/common/perfc.c
index 8302b7cf6d..0f3b89af2c 100644
--- a/xen/common/perfc.c
+++ b/xen/common/perfc.c
@@ -149,6 +149,7 @@ void cf_check perfc_reset(unsigned char key)
     }
 }
 
+#ifdef CONFIG_SYSCTL
 static struct xen_sysctl_perfc_desc perfc_d[NR_PERFCTRS];
 static xen_sysctl_perfc_val_t *perfc_vals;
 static unsigned int      perfc_nbr_vals;
@@ -265,6 +266,7 @@ int perfc_control(struct xen_sysctl_perfc_op *pc)
 
     return rc;
 }
+#endif /* CONFIG_SYSCTL */
 
 /*
  * Local variables:
-- 
2.34.1




 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.