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Babu Moger ea274cbeaf fs/resctrl: Add event configuration directory under info/L3_MON/ 
The "mbm_event" counter assignment mode allows the user to assign a hardware
counter to an RMID, event pair and monitor the bandwidth as long as it is
assigned. The user can specify the memory transaction(s) for the counter to
track.

When this mode is supported, the /sys/fs/resctrl/info/L3_MON/event_configs
directory contains a sub-directory for each MBM event that can be assigned to
a counter.  The MBM event sub-directory contains a file named "event_filter"
that is used to view and modify which memory transactions the MBM event is
configured with.

Create /sys/fs/resctrl/info/L3_MON/event_configs directory on resctrl mount
and pre-populate it with directories for the two existing MBM events:
mbm_total_bytes and mbm_local_bytes. Create the "event_filter" file within
each MBM event directory with the needed *show() that displays the memory
transactions with which the MBM event is configured.

Example:
  $ mount -t resctrl resctrl /sys/fs/resctrl
  $ cd /sys/fs/resctrl/
  $ cat info/L3_MON/event_configs/mbm_total_bytes/event_filter
    local_reads,remote_reads,local_non_temporal_writes,
    remote_non_temporal_writes,local_reads_slow_memory,
    remote_reads_slow_memory,dirty_victim_writes_all

  $ cat info/L3_MON/event_configs/mbm_local_bytes/event_filter
    local_reads,local_non_temporal_writes,local_reads_slow_memory

Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/cover.1757108044.git.babu.moger@amd.com
2025-09-15 12:39:38 +02:00
..
9p vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
adfs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
affs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
afs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
autofs new helper: set_default_d_op() 2025-06-10 22:21:16 -04:00
bcachefs vfs-6.17-rc1.fileattr 2025-07-28 15:24:14 -07:00
befs
bfs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
btrfs for-6.17-rc5-tag 2025-09-11 08:01:18 -07:00
cachefiles vfs-6.17-rc1.misc 2025-07-28 11:22:56 -07:00
ceph ceph: fix crash after fscrypt_encrypt_pagecache_blocks() error 2025-09-09 12:57:03 +02:00
coda vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
configfs configfs: use DCACHE_DONTCACHE 2025-06-11 13:41:05 -04:00
cramfs mm: remove callers of pfn_t functionality 2025-07-09 22:42:19 -07:00
crypto fscrypt: Remove gfp_t argument from fscrypt_encrypt_block_inplace() 2025-07-10 12:33:13 -07:00
debugfs debugfs: fix mount options not being applied 2025-08-17 12:22:25 +02:00
devpts devpts, sunrpc, hostfs: don't bother with ->d_op 2025-06-11 13:40:04 -04:00
dlm treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ecryptfs vfs-6.17-rc1.fileattr 2025-07-28 15:24:14 -07:00
efivarfs efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare 2025-08-28 08:39:49 +02:00
efs
erofs erofs: fix long xattr name prefix placement 2025-09-12 03:37:07 +08:00
exfat exfat: add cluster chain loop check for dir 2025-08-01 08:34:23 +09:00
exportfs exportfs: use lookup_one_unlocked() 2025-06-11 13:44:15 +02:00
ext2 \n 2025-07-28 16:16:09 -07:00
ext4 Ext4 bug fixes and cleanups for 6.17-rc3, including most notably: 2025-08-18 09:01:00 -07:00
f2fs f2fs-for-6.17-rc1 2025-08-04 16:27:21 -07:00
fat Significant patch series in this pull request: 2025-08-03 16:23:09 -07:00
freevxfs
fuse fuse: virtio_fs: fix page fault for DAX page address 2025-09-05 15:56:30 +02:00
gfs2 vfs-6.17-rc1.iomap 2025-07-28 16:09:03 -07:00
hfs hfs/hfsplus updates for v6.17 2025-07-28 16:17:44 -07:00
hfsplus hfs/hfsplus updates for v6.17 2025-07-28 16:17:44 -07:00
hostfs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
hpfs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
hugetlbfs Summary of significant series in this pull request: 2025-07-31 14:57:54 -07:00
iomap iomap: Fix broken data integrity guarantees for O_SYNC writes 2025-08-11 14:51:49 +02:00
isofs Current exclusion rules for ->d_flags stores are rather unpleasant. 2025-07-28 09:17:57 -07:00
jbd2 jbd2: prevent softlockup in jbd2_log_do_checkpoint() 2025-08-13 14:24:14 -04:00
jffs2 vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
jfs Fixes and cleanups for JFS filesystem 2025-07-31 10:27:11 -07:00
kernfs kernfs: Fix UAF in polling when open file is released 2025-09-06 20:11:27 +02:00
lockd
minix vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
netfs netfs: Fix unbuffered write error handling 2025-08-15 15:56:49 +02:00
nfs NFSv4/flexfiles: Fix layout merge mirror check. 2025-09-08 14:37:55 -04:00
nfs_common NFS/localio: nfs_uuid_put() fix the wake up after unlinking the file 2025-08-05 16:45:40 -07:00
nfsd nfsd-6.17 fixes: 2025-08-11 07:38:55 -07:00
nilfs2 vfs-6.17-rc1.fileattr 2025-07-28 15:24:14 -07:00
nls
notify \n 2025-07-31 10:31:00 -07:00
ntfs3 vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
ocfs2 ocfs2: fix recursive semaphore deadlock in fiemap call 2025-09-08 23:45:11 -07:00
omfs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
openpromfs
orangefs orangefs: fixes for string handling in debugfs and sysfs 2025-07-31 10:22:48 -07:00
overlayfs ovl: fix possible double unlink 2025-08-18 13:16:49 +02:00
proc proc: fix type confusion in pde_set_flags() 2025-09-08 23:45:12 -07:00
pstore pstore: switch to locked_recursive_removal() 2025-07-02 22:36:51 -04:00
qnx4
qnx6
quota VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
ramfs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
resctrl fs/resctrl: Add event configuration directory under info/L3_MON/ 2025-09-15 12:39:38 +02:00
romfs fs: replace mmap hook with .mmap_prepare for simple mappings 2025-06-19 13:56:59 +02:00
smb smb: client: fix data loss due to broken rename(2) 2025-09-09 18:39:58 -05:00
squashfs squashfs: fix memory leak in squashfs_fill_super 2025-08-19 16:35:53 -07:00
sysfs sysfs: constify internal references to 'struct bin_attribute' 2025-06-17 10:44:09 +02:00
tests
tracefs Massage rpc_pipefs to use saner primitives and clean up the 2025-07-28 09:56:09 -07:00
ubifs This pull request contains the following changes for UBI and UBIFS: 2025-07-31 10:08:44 -07:00
udf \n 2025-07-28 16:16:09 -07:00
ufs vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
unicode
vboxsf vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
verity fsverity: Switch from crypto_shash to SHA-2 library 2025-07-14 11:29:32 -07:00
xfs xfs: do not propagate ENODATA disk errors into xattr code 2025-08-26 11:00:33 +02:00
zonefs zonefs changes for 6.17-rc1 2025-07-28 17:06:51 -07:00
aio.c fs: replace mmap hook with .mmap_prepare for simple mappings 2025-06-19 13:56:59 +02:00
anon_inodes.c module: Rename EXPORT_SYMBOL_GPL_FOR_MODULES to EXPORT_SYMBOL_FOR_MODULES 2025-08-11 16:16:36 +02:00
attr.c docs/vfs: update references to i_mutex to i_rwsem 2025-06-23 12:17:33 +02:00
backing-file.c vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
bad_inode.c
binfmt_elf.c execve updates for v6.17 2025-07-28 17:11:40 -07:00
binfmt_elf_fdpic.c execve updates for v6.17 2025-07-28 17:11:40 -07:00
binfmt_flat.c
binfmt_misc.c binfmt_misc: switch to locked_recursive_removal() 2025-07-02 22:36:51 -04:00
binfmt_script.c
bpf_fs_kfuncs.c bpf: Introduce bpf_cgroup_read_xattr to read xattr of cgroup's node 2025-07-02 14:18:20 +02:00
buffer.c fs/buffer: fix use-after-free when call bh_read() helper 2025-08-19 13:51:28 +02:00
char_dev.c
compat_binfmt_elf.c
coredump.c coredump: don't pointlessly check and spew warnings 2025-08-21 13:54:40 +02:00
d_path.c fold fs_struct->{lock,seq} into a seqlock 2025-07-08 10:25:19 +02:00
dax.c fs/dax: Reject IOCB_ATOMIC in dax_iomap_rw() 2025-08-11 14:03:38 +02:00
dcache.c vfs-6.17-rc1.misc 2025-07-28 11:22:56 -07:00
direct-io.c Summary of significant series in this pull request: 2025-07-31 14:57:54 -07:00
drop_caches.c
eventfd.c
eventpoll.c vfs-6.17-rc1.misc 2025-07-28 11:22:56 -07:00
exec.c coredump: don't pointlessly check and spew warnings 2025-08-21 13:54:40 +02:00
fcntl.c
fhandle.c fhandle: use more consistent rules for decoding file handle from userns 2025-08-29 09:48:31 +02:00
file.c vfs-6.17-rc1.misc 2025-07-28 11:22:56 -07:00
file_attr.c fs: tighten a sanity check in file_attr_to_fileattr() 2025-07-16 10:22:01 +02:00
file_table.c \n 2025-07-31 10:31:00 -07:00
filesystems.c fs/filesystems: Fix potential unsigned integer underflow in fs_name() 2025-04-14 13:05:59 +02:00
fs-writeback.c fs: writeback: fix use-after-free in __mark_inode_dirty() 2025-08-11 14:51:45 +02:00
fs_context.c fs/fs_context: Mark an unlikely if condition with unlikely() in vfs_parse_monolithic_sep() 2025-04-14 13:05:59 +02:00
fs_parser.c fs/fs_parse: Remove unused and problematic validate_constant_table() 2025-04-21 10:27:59 +02:00
fs_pin.c
fs_struct.c fold fs_struct->{lock,seq} into a seqlock 2025-07-08 10:25:19 +02:00
fs_types.c
fsopen.c
init.c
inode.c vfs: Remove unnecessary list_for_each_entry_safe() from evict_inodes() 2025-07-10 09:37:32 +02:00
internal.h vfs-6.17-rc1.pidfs 2025-07-28 14:10:15 -07:00
ioctl.c fs: split fileattr related helpers into separate file 2025-07-01 22:44:22 +02:00
Kconfig fs/Kconfig: enable HUGETLBFS only if ARCH_SUPPORTS_HUGETLBFS 2025-07-24 19:12:38 -07:00
Kconfig.binfmt
kernel_read_file.c
libfs.c vfs-6.17-rc1.pidfs 2025-07-28 14:10:15 -07:00
locks.c docs/vfs: update references to i_mutex to i_rwsem 2025-06-23 12:17:33 +02:00
Makefile fs: split fileattr related helpers into separate file 2025-07-01 22:44:22 +02:00
mbcache.c
mnt_idmapping.c
mount.h copy_tree(): don't link the mounts via mnt_list 2025-06-29 19:03:37 -04:00
mpage.c fs: use writeback_iter directly in mpage_writepages 2025-05-09 12:37:48 +02:00
namei.c vfs-6.17-rc1.pidfs 2025-07-28 14:10:15 -07:00
namespace.c fs: fix indentation style 2025-08-21 10:27:05 +02:00
nsfs.c vfs-6.15-rc1.nsfs 2025-03-24 11:38:12 -07:00
open.c \n 2025-07-31 10:31:00 -07:00
pidfs.c pidfs: Fix memory leak in pidfd_info() 2025-08-15 16:10:46 +02:00
pipe.c fs/pipe: set FMODE_NOWAIT in create_pipe_files() 2025-06-10 13:16:19 +02:00
pnode.c change_mnt_propagation(): calculate propagation source only if we'll need it 2025-08-19 12:05:59 -04:00
pnode.h get rid of CL_SHARE_TO_SLAVE 2025-06-29 19:03:46 -04:00
posix_acl.c
proc_namespace.c ->mnt_devname is never NULL 2025-05-23 14:20:44 +02:00
read_write.c vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
readdir.c readdir: supply dir_context.count as readdir buffer size hint 2025-05-29 12:31:23 +02:00
remap_range.c
select.c fs: annotate suspected data race between poll_schedule_timeout() and pollwake() 2025-06-23 12:36:51 +02:00
seq_file.c
signalfd.c
splice.c netfs: Fix unbuffered write error handling 2025-08-15 15:56:49 +02:00
stack.c docs/vfs: update references to i_mutex to i_rwsem 2025-06-23 12:17:33 +02:00
stat.c xfs: New code for 6.16 2025-05-26 12:56:01 -07:00
statfs.c
super.c vfs-6.17-rc1.super 2025-07-28 15:50:15 -07:00
sync.c
sysctls.c
timerfd.c A treewide hrtimer timer cleanup 2025-03-25 10:54:15 -07:00
userfaultfd.c mm/mremap: use an explicit uffd failure path for mremap 2025-07-24 19:12:29 -07:00
utimes.c
xattr.c vfs-6.17-rc1.misc 2025-07-28 11:22:56 -07:00