korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-13 14:24:11 +08:00
Code Issues Packages Projects Releases Wiki Activity
a547a5880c
linux/arch
History
Peter Newman a547a5880c x86/resctrl: Fix arch_mbm_* array overrun on SNC 
When using resctrl on systems with Sub-NUMA Clustering enabled, monitoring
groups may be allocated RMID values which would overrun the
arch_mbm_{local,total} arrays.

This is due to inconsistencies in whether the SNC-adjusted num_rmid value or
the unadjusted value in resctrl_arch_system_num_rmid_idx() is used. The
num_rmid value for the L3 resource is currently:

  resctrl_arch_system_num_rmid_idx() / snc_nodes_per_l3_cache

As a simple fix, make resctrl_arch_system_num_rmid_idx() return the
SNC-adjusted, L3 num_rmid value on x86.

Fixes: e13db55b5a ("x86/resctrl: Introduce snc_nodes_per_l3_cache")
Signed-off-by: Peter Newman <peternewman@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/r/20240822190212.1848788-1-peternewman@google.com
2024-08-28 11:13:08 +02:00
..
alpha alpha: fix ioread64be()/iowrite64be() helpers 2024-08-01 15:48:03 +02:00
arc arc: convert to generic syscall table 2024-07-10 14:23:38 +02:00
arm ARM: soc fixes for 6.11, part 1 2024-08-09 10:06:43 -07:00
arm64 ARM: soc fixes for 6.11, part 1 2024-08-09 10:06:43 -07:00
csky ftrace: Rewrite of function graph tracer 2024-07-18 13:36:33 -07:00
hexagon hexagon: use new system call table 2024-07-10 14:23:38 +02:00
loongarch LoongArch: KVM: Remove undefined a6 argument comment for kvm_hypercall() 2024-08-07 17:37:14 +08:00
m68k Kbuild updates for v6.11 2024-07-23 14:32:21 -07:00
microblaze syscalls: mmap(): use unsigned offset type consistently 2024-06-25 15:57:38 +02:00
mips - Use improved timer sync for Loongson64 2024-07-25 12:41:53 -07:00
nios2 Kbuild updates for v6.11 2024-07-23 14:32:21 -07:00
openrisc openrisc: convert to generic syscall table 2024-07-10 14:23:38 +02:00
parisc parisc: fix a possible DMA corruption 2024-07-29 16:19:07 +02:00
powerpc Devicetree fixes for 6.11, part 1 2024-07-27 12:46:16 -07:00
riscv RISC-V Fixes for 6.11-rc2 2024-08-02 09:33:35 -07:00
s390 s390: Keep inittext section writable 2024-07-31 16:30:20 +02:00
sh sh updates for v6.11 2024-07-23 11:57:52 -07:00
sparc Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
um minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
x86 x86/resctrl: Fix arch_mbm_* array overrun on SNC 2024-08-28 11:13:08 +02:00
xtensa - 875fa64577 ("mm/hugetlb_vmemmap: fix race with speculative PFN 2024-07-21 17:15:46 -07:00
.gitignore
Kconfig Revert "mm: mmap: allow for the maximum number of bits for randomizing mmap_base by default" 2024-06-17 12:57:03 -07:00