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-rw-r--r--arch/tile/Kconfig14
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 25877aebc68..41a2a0becc1 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -368,11 +368,17 @@ config HARDWALL
config KERNEL_PL
int "Processor protection level for kernel"
range 1 2
- default "1"
+ default 2 if TILEGX
+ default 1 if !TILEGX
---help---
- This setting determines the processor protection level the
- kernel will be built to run at. Generally you should use
- the default value here.
+ Since MDE 4.2, the Tilera hypervisor runs the kernel
+ at PL2 by default. If running under an older hypervisor,
+ or as a KVM guest, you must run at PL1. (The current
+ hypervisor may also be recompiled with "make HV_PL=2" to
+ allow it to run a kernel at PL1, but clients running at PL1
+ are not expected to be supported indefinitely.)
+
+ If you're not sure, don't change the default.
source "arch/tile/gxio/Kconfig"