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Diffstat (limited to 'drivers/xen/xen-acpi-processor.c')
-rw-r--r--drivers/xen/xen-acpi-processor.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c
index b29f4e40851f..fbb9137c7d02 100644
--- a/drivers/xen/xen-acpi-processor.c
+++ b/drivers/xen/xen-acpi-processor.c
@@ -362,6 +362,12 @@ read_acpi_id(acpi_handle handle, u32 lvl, void *context, void **rv)
default:
return AE_OK;
}
+ if (invalid_phys_cpuid(acpi_get_phys_id(handle,
+ acpi_type == ACPI_TYPE_DEVICE,
+ acpi_id))) {
+ pr_debug("CPU with ACPI ID %u is unavailable\n", acpi_id);
+ return AE_OK;
+ }
/* There are more ACPI Processor objects than in x2APIC or MADT.
* This can happen with incorrect ACPI SSDT declerations. */
if (acpi_id >= nr_acpi_bits) {