1 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 5ba4d9dff113..51bceb0fb277 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -240,7 +240,7 @@ and is between 256 and 4096 characters. It is defined in the file
        acpi_sleep=     [HW,ACPI] Sleep options
                        Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
-                                  old_ordering, s4_nonvs }
+                                  old_ordering, s4_nonvs, sci_force_enable }
                        See Documentation/power/video.txt for information on
                        s3_bios and s3_mode.
                        s3_beep is for debugging; it makes the PC's speaker beep
@@ -253,6 +253,9 @@ and is between 256 and 4096 characters. It is defined in the file
                        of _PTS is used by default).
                        s4_nonvs prevents the kernel from saving/restoring the
                        ACPI NVS memory during hibernation.
+                        sci_force_enable causes the kernel to set SCI_EN directly
+                        on resume from S1/S3 (which is against the ACPI spec,
+                        but some broken systems don't work without it).
        acpi_use_timer_override [HW,ACPI]
                        Use timer override. For some broken Nvidia NF5 boards
@@ -1769,6 +1772,12 @@ and is between 256 and 4096 characters. It is defined in the file
                        purges which is reported from either PAL_VM_SUMMARY or
                        SAL PALO.
+        nr_cpus=        [SMP] Maximum number of processors that an SMP kernel
+                        could support.  nr_cpus=n : n >= 1 limits the kernel to
+                        supporting 'n' processors. Later in runtime you can not
+                        use hotplug cpu feature to put more cpu back to online.
+                        just like you compile the kernel NR_CPUS=n
        nr_uarts=       [SERIAL] maximum number of UARTs to be registered.
        numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.