linux/arch/x86/kernel/cpu
James Morse b30a55df60 x86/resctrl: Track the number of dirty RMID a CLOSID has
MPAM's PMG bits extend its PARTID space, meaning the same PMG value can be
used for different control groups.

This means once a CLOSID is allocated, all its monitoring ids may still be
dirty, and held in limbo.

Keep track of the number of RMID held in limbo each CLOSID has. This will
allow a future helper to find the 'cleanest' CLOSID when allocating.

The array is only needed when CONFIG_RESCTRL_RMID_DEPENDS_ON_CLOSID is
defined. This will never be the case on x86.

Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Babu Moger <babu.moger@amd.com>
Tested-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Tested-by: Peter Newman <peternewman@google.com>
Tested-by: Babu Moger <babu.moger@amd.com>
Tested-by: Carl Worth <carl@os.amperecomputing.com> # arm64
Link: https://lore.kernel.org/r/20240213184438.16675-9-james.morse@arm.com
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
2024-02-16 19:18:31 +01:00
..
mce - Add support managing TDX host hardware 2024-01-18 13:41:48 -08:00
microcode x86/microcode/intel: Set new revision only after a successful update 2023-12-03 11:49:53 +01:00
mtrr x86/mtrr: Document missing function parameters in kernel-doc 2023-11-20 10:19:27 +01:00
resctrl x86/resctrl: Track the number of dirty RMID a CLOSID has 2024-02-16 19:18:31 +01:00
sgx arch/x86: Fix typos 2024-01-03 11:46:22 +01:00
.gitignore
acrn.c x86/apic: Nuke ack_APIC_irq() 2023-08-09 11:58:34 -07:00
amd.c - Add synthetic X86_FEATURE flags for the different AMD Zen generations 2024-01-08 15:45:31 -08:00
aperfmperf.c x86/aperfmperf: Erase stale arch_freq_scale values when disabling frequency invariance readings 2023-01-16 10:19:15 +01:00
bugs.c x86/srso: Remove unnecessary semicolon 2023-10-20 12:50:35 +02:00
cacheinfo.c x86/cpu: Move cpu_l[l2]c_id into topology info 2023-10-10 14:38:18 +02:00
centaur.c
common.c - Add support managing TDX host hardware 2024-01-18 13:41:48 -08:00
cpu.h x86/cpu: Move cpu_l[l2]c_id into topology info 2023-10-10 14:38:18 +02:00
cpuid-deps.c x86/cpufeatures: Add CPU feature flags for shadow stacks 2023-07-11 14:12:18 -07:00
cyrix.c x86/cyrix: include header linux/isa-dma.h 2022-07-26 14:03:12 -05:00
debugfs.c x86/cpu: Provide debug interface 2023-10-10 14:38:19 +02:00
feat_ctl.c x86/cpu: Include the header of init_ia32_feat_ctl()'s prototype 2022-09-26 17:06:27 +02:00
hygon.c x86/barrier: Do not serialize MSR accesses on AMD 2023-11-13 10:09:45 +01:00
hypervisor.c
intel_epb.c x86/cpu/intel_epb: Don't rely on link order 2023-11-24 13:54:31 +01:00
intel_pconfig.c
intel.c sysctl-6.7-rc1 2023-11-01 20:51:41 -10:00
Makefile x86/cpu: Provide debug interface 2023-10-10 14:38:19 +02:00
match.c
mkcapflags.sh
mshyperv.c x86/hyperv: Use atomic_try_cmpxchg() to micro-optimize hv_nmi_unknown() 2023-11-22 03:47:44 +00:00
perfctr-watchdog.c x86/nmi_watchdog: Fix old-style NMI watchdog regression on old Intel CPUs 2021-06-10 10:04:40 +02:00
powerflags.c
proc.c x86/cpu: Move cpu_core_id into topology info 2023-10-10 14:38:17 +02:00
rdrand.c x86/rdrand: Remove "nordrand" flag in favor of "random.trust_cpu" 2022-07-18 15:04:04 +02:00
scattered.c x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag 2023-01-23 17:38:31 +01:00
topology.c x86/cpu: Move cpu_core_id into topology info 2023-10-10 14:38:17 +02:00
transmeta.c
tsx.c x86/cpu: Remove redundant extern x86_read_arch_cap_msr() 2023-01-10 12:40:24 +01:00
umc.c
umwait.c x86/umwait: move to use bus_get_dev_root() 2023-03-17 15:29:29 +01:00
vmware.c sched/clock/x86: Mark sched_clock() noinstr 2023-01-31 15:01:47 +01:00
vortex.c x86/CPU: Add support for Vortex CPUs 2021-10-21 15:49:07 +02:00
zhaoxin.c x86/cpu: Remove pointless evaluation of x86_coreid_bits 2023-10-10 14:38:18 +02:00