1 files changed, 12 insertions, 0 deletions

diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index ea91750ba27f..74821bc457c0 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -2349,6 +2349,12 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
         u32 *ctrl;
 
         for_each_alloc_enabled_rdt_resource(r) {
+                /*
+                 * Only initialize default allocations for CBM cache
+                 * resources
+                 */
+                if (r->rid == RDT_RESOURCE_MBA)
+                        continue;
                 list_for_each_entry(d, &r->domains, list) {
                         d->have_new_ctrl = false;
                         d->new_ctrl = r->cache.shareable_bits;
@@ -2386,6 +2392,12 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
         }
 
         for_each_alloc_enabled_rdt_resource(r) {
+                /*
+                 * Only initialize default allocations for CBM cache
+                 * resources
+                 */
+                if (r->rid == RDT_RESOURCE_MBA)
+                        continue;
                 ret = update_domains(r, rdtgrp->closid);
                 if (ret < 0) {
                         rdt_last_cmd_puts("failed to initialize allocations\n");