Documentation/kernel-parameters.txt: document libata's ignore_hpa option
authorMichael Prokop <mika@grml.org>
Wed, 5 Aug 2009 22:14:10 +0000 (00:14 +0200)
committerJeff Garzik <jgarzik@redhat.com>
Wed, 12 Aug 2009 10:21:08 +0000 (06:21 -0400)
By default the kernel honors the HPA (host protected area) of hard
drives.  Using libata's ignore_hpa module option it's possible to
change this behaviour.

Document usage and options of libata.ignore_hpa in
Documentation/kernel-parameters.txt.

Signed-off-by: Michael Prokop <mika@grml.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Documentation/kernel-parameters.txt

index dd1a6d4bb7473c4966a720c40e8af0492f9853c5..7936b801fe6acc8e4dfe0f6f288a2e8ce9e81e08 100644 (file)
@@ -1115,6 +1115,10 @@ and is between 256 and 4096 characters. It is defined in the file
                        libata.dma=4      Compact Flash DMA only 
                        Combinations also work, so libata.dma=3 enables DMA
                        for disks and CDROMs, but not CFs.
+       
+       libata.ignore_hpa=      [LIBATA] Ignore HPA limit
+                       libata.ignore_hpa=0       keep BIOS limits (default)
+                       libata.ignore_hpa=1       ignore limits, using full disk
 
        libata.noacpi   [LIBATA] Disables use of ACPI in libata suspend/resume
                        when set.