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LoongArch: Fix acpi_package_ids[] array overflow

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With LoongArch virt machine, a typical setting is one core per socket,
there will max 256 sockets (packages) on one VM. With PPTT acpi table,
array acpi_package_ids[] will be overflowed.

Here change the array size of acpi_package_ids[] with the max value of
MAX_PACKAGES and KVM_MAX_VCPUS.

Cc: stable@vger.kernel.org # 6.7+
Fixes: 4e8f58620f ("LoongArch: Retrieve CPU package ID from PPTT when available")
Reviewed-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Bibo Mao 2026-08-17 22:07:05 +08:00 committed by Huacai Chen
parent 8d3ae59288
commit 2a2367d46d
1 changed files with 2 additions and 1 deletions
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3
arch/loongarch/kernel/acpi.c
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@ -13,6 +13,7 @@
#include <linux/export.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/kvm_host.h>
#include <linux/memblock.h>
#include <linux/of_fdt.h>
#include <linux/serial_core.h>
@ -202,7 +203,7 @@ static void __init acpi_process_madt(void)
int pptt_enabled;
static int acpi_nr_packages;
static int acpi_package_ids[MAX_PACKAGES];
static int acpi_package_ids[MAX(MAX_PACKAGES, KVM_MAX_VCPUS)];
int __init parse_acpi_topology(void)
{