diff options
| author |   Don Dugger <donald.d.dugger@intel.com> | 2015-10-29 22:15:25 +0000 |
|---|---|---|
| committer |   Gerrit Code Review <gerrit@172.30.200.206> | 2015-10-29 22:15:25 +0000 |
| commit | afc76d554ed517e38d46b6b182a7016406a1323f (patch) | |
| tree | 06133cb33a43488837ea67667458e1582f2f40ce /kernel/arch/arm64/kernel/head.S | |
| parent | 41f827bfbb10e03c4d228fbcc801dd51fb9983b0 (diff) | |
| parent | ec0a2ed6d8a5e555edef907895c041e285fdb495 (diff) | |
Merge "These changes are a raw update to a vanilla kernel 4.1.10, with the recently announced rt patch patch-4.1.10-rt10.patch. No further changes needed."
Diffstat (limited to 'kernel/arch/arm64/kernel/head.S')
| -rw-r--r-- | kernel/arch/arm64/kernel/head.S | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/arch/arm64/kernel/head.S b/kernel/arch/arm64/kernel/head.S index 19f915e8f..36aa31ff2 100644 --- a/kernel/arch/arm64/kernel/head.S +++ b/kernel/arch/arm64/kernel/head.S @@ -565,6 +565,11 @@ CPU_LE( movk x0, #0x30d0, lsl #16 ) // Clear EE and E0E on LE systems msr hstr_el2, xzr // Disable CP15 traps to EL2 #endif + /* EL2 debug */ + mrs x0, pmcr_el0 // Disable debug access traps + ubfx x0, x0, #11, #5 // to EL2 and allow access to + msr mdcr_el2, x0 // all PMU counters from EL1 + /* Stage-2 translation */ msr vttbr_el2, xzr |