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 | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 6691077..fb5412e 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -716,6 +716,12 @@ static void __init early_cmdline_parse(void)
#else
#define OV5_PFO_HW_RNG 0x00
#endif
+#if defined(CONFIG_CRYPTO_DEV_NX) || \
+ defined(CONFIG_CRYPTO_DEV_NX_MODULE)
+#define OV5_PFO_HW_ENCR 0x20
+#else
+#define OV5_PFO_HW_ENCR 0x00
+#endif
/* Option Vector 6: IBM PAPR hints */
#define OV6_LINUX 0x02 /* Linux is our OS */
@@ -783,7 +789,7 @@ 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
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