diff options
authorMichael Prokop <>2009-08-06 00:14:10 +0200
committerJeff Garzik <>2009-08-12 06:21:08 -0400
commit20308871588518b5e209c403de2a3ad9a2eba9af (patch)
parent51c8949950647afeeb897e08dd75ad99078adb50 (diff)
Documentation/kernel-parameters.txt: document libata's ignore_hpa option
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 <> Signed-off-by: Jeff Garzik <>
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index dd1a6d4bb74..7936b801fe6 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -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.