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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-firmware-efi
downloadlinux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz
linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.zip
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/firmware/efi/fw_vendor
+Date: December 2013
+Contact: Dave Young <dyoung@redhat.com>
+Description: It shows the physical address of firmware vendor field in the
+ EFI system table.
+Users: Kexec
+
+What: /sys/firmware/efi/runtime
+Date: December 2013
+Contact: Dave Young <dyoung@redhat.com>
+Description: It shows the physical address of runtime service table entry in
+ the EFI system table.
+Users: Kexec
+
+What: /sys/firmware/efi/config_table
+Date: December 2013
+Contact: Dave Young <dyoung@redhat.com>
+Description: It shows the physical address of config table entry in the EFI
+ system table.
+Users: Kexec
+
+What: /sys/firmware/efi/systab
+Date: April 2005
+Contact: linux-efi@vger.kernel.org
+Description: Displays the physical addresses of all EFI Configuration
+ Tables found via the EFI System Table. The order in
+ which the tables are printed forms an ABI and newer
+ versions are always printed first, i.e. ACPI20 comes
+ before ACPI.
+Users: dmidecode
+
+What: /sys/firmware/efi/tables/rci2
+Date: July 2019
+Contact: Narendra K <Narendra.K@dell.com>, linux-bugs@dell.com
+Description: Displays the content of the Runtime Configuration Interface
+ Table version 2 on Dell EMC PowerEdge systems in binary format
+Users: It is used by Dell EMC OpenManage Server Administrator tool to
+ populate BIOS setup page.
+
+What: /sys/firmware/efi/ovmf_debug_log
+Date: July 2025
+Contact: Gerd Hoffmann <kraxel@redhat.com>, linux-efi@vger.kernel.org
+Description: Displays the content of the OVMF debug log buffer. The file is
+ only present in case the firmware supports logging to a memory
+ buffer.