stuartl/linux-stable
1
0
Fork 0
mirror of https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux-stable.git synced 2025-09-13 11:07:46 +10:00
Code Issues Releases Wiki Activity

platform/x86/intel: power-domains: Use topology_logical_package_id() for package ID

Browse Source 
[ Upstream commit aa28991fd5 ]

Currently, tpmi_get_logical_id() calls topology_physical_package_id()
to set the pkg_id of the info structure. Since some VM hosts assign non
contiguous package IDs, topology_physical_package_id() can return a
larger value than topology_max_packages(). This will result in an
invalid reference into tpmi_power_domain_mask[] as that is allocatead
based on topology_max_packages() as the maximum package ID.

Fixes: 17ca278045 ("platform/x86/intel: TPMI domain id and CPU mapping")
Signed-off-by: David Arcari <darcari@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250829113859.1772827-1-darcari@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Arcari 2025-08-29 07:38:59 -04:00 committed by Greg Kroah-Hartman
parent cbb4ff4faa
commit 74286dde3d
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/platform/x86/intel/tpmi_power_domains.c
View File

@ -178,7 +178,7 @@ static int tpmi_get_logical_id(unsigned int cpu, struct tpmi_cpu_info *info)
info->punit_thread_id = FIELD_GET(LP_ID_MASK, data);
info->punit_core_id = FIELD_GET(MODULE_ID_MASK, data);
info->pkg_id = topology_physical_package_id(cpu);
info->pkg_id = topology_logical_package_id(cpu);
info->linux_cpu = cpu;
return 0;