[PATCH v3 17/17] powerpc: crypto: enable the PFO-based encryptiondevice

From: Kent Yoder
Date: Thu Apr 12 2012 - 11:42:10 EST


This patch adds the cas bits to advertise support for the Platform
Facilities Option (PFO) based encryption accelerator device. The nx
device driver provides support for this hardware feature.

Signed-off-by: Kent Yoder <key@xxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/prom_init.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 26f6317..604b4c4 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -702,6 +702,7 @@ static void __init early_cmdline_parse(void)
#endif
#define OV5_TYPE1_AFFINITY 0x80 /* Type 1 NUMA affinity */
#define OV5_PFO_HW_RNG 0x80 /* PFO Random Number Generator */
+#define OV5_PFO_HW_ENCR 0x20 /* PFO Encryption Accelerator */

/* Option Vector 6: IBM PAPR hints */
#define OV6_LINUX 0x02 /* Linux is our OS */
@@ -769,7 +770,7 @@ static unsigned char ibm_architecture_vec[] = {
0,
0,
0,
- OV5_PFO_HW_RNG,
+ OV5_PFO_HW_RNG | OV5_PFO_HW_ENCR,

/* option vector 6: IBM PAPR hints */
4 - 2, /* length */
--
1.7.1


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/