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-rw-r--r--arch/x86/kernel/acpi/boot.c4
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;