From 182c9a59569b2f7adcd0473a1871a9899224d95d Mon Sep 17 00:00:00 2001 From: wangwudi Date: Mon, 12 Jun 2023 22:51:24 +0800 Subject: [PATCH 1/2] irqchip: gic-v3: Collection table support muti pages driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7CX6S CVE: NA -------------------------------------------------------------------------- Only one page is allocated to the collection table. Recalculate the page number of collection table based on the number of CPUs. Signed-off-by: wangwudi Signed-off-by: Shengwei Luo --- drivers/irqchip/irq-gic-v3-its.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 73ce248da42c..46012ad327e7 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -2180,6 +2180,10 @@ static int its_alloc_tables(struct its_node *its) indirect = its_parse_indirect_baser(its, baser, &order, ITS_MAX_VPEID_BITS); break; + case GITS_BASER_TYPE_COLLECTION: + indirect = its_parse_indirect_baser(its, baser, &order, + order_base_2(num_possible_cpus())); + break; } err = its_setup_baser(its, baser, cache, shr, order, indirect); -- 2.27.0