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authorDapeng Mi <dapeng1.mi@linux.intel.com>2026-09-17 09:52:33 +0800
committerIngo Molnar <mingo@kernel.org>2026-09-22 11:37:46 +0200
commit0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch)
tree531306c2299f9a269f0a986e29f17ba972180104 /Documentation/ABI/testing/sysfs-class-vduse
downloadlinux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz
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perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
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+What: /sys/class/vduse/
+Date: Oct 2021
+KernelVersion: 5.15
+Contact: Yongji Xie <xieyongji@bytedance.com>
+Description:
+ The vduse/ class sub-directory belongs to the VDUSE
+ framework and provides a sysfs interface for configuring
+ VDUSE devices.
+
+What: /sys/class/vduse/control/
+Date: Oct 2021
+KernelVersion: 5.15
+Contact: Yongji Xie <xieyongji@bytedance.com>
+Description:
+ This directory entry is created for the control device
+ of VDUSE framework.
+
+What: /sys/class/vduse/<device-name>/
+Date: Oct 2021
+KernelVersion: 5.15
+Contact: Yongji Xie <xieyongji@bytedance.com>
+Description:
+ This directory entry is created when a VDUSE device is
+ created via the control device.
+
+What: /sys/class/vduse/<device-name>/msg_timeout
+Date: Oct 2021
+KernelVersion: 5.15
+Contact: Yongji Xie <xieyongji@bytedance.com>
+Description:
+ (RW) The timeout (in seconds) for waiting for the control
+ message's response from userspace. Default value is 30s.
+ Writing a '0' to the file means to disable the timeout.