1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index cd40aba6aa95..b9629384263c 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1576,6 +1576,10 @@ static int __init parse_acpi(char *arg)
         /* "acpi=noirq" disables ACPI interrupt routing */
         else if (strcmp(arg, "noirq") == 0) {
                 acpi_noirq_set();
+        }
+        /* "acpi=copy_dsdt" copys DSDT */
+        else if (strcmp(arg, "copy_dsdt") == 0) {
+                acpi_gbl_copy_dsdt_locally = 1;
         } else {
                 /* Core will printk when we return error. */
                 return -EINVAL;