diff options
| author | Christoffer Dall <cdall@cs.columbia.edu> | 2011-04-23 12:26:30 +0200 |
|---|---|---|
| committer | Christoffer Dall <cdall@cs.columbia.edu> | 2011-04-28 13:15:23 +0200 |
| commit | f6a4aa162284a89ea25dd6c3dc7398efb8c5bc6e (patch) | |
| tree | dd67c7b539b1b61c954a371e3bb50d485106a93d | |
| parent | 446e06a134c48a549746e56ec7965b1d8a473940 (diff) | |
Set interrupts to be non-secure
| -rw-r--r-- | boot.S | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -48,6 +48,18 @@ _start: @ Hypervisor / TrustZone initialization @ 2: + @ Set all interrupts to be non-secure + ldr r0, =0x2c001000 @ Dist GIC base + ldr r1, [r0, #0x04] @ Type Register + and r1, r1, #0x1f + add r2, r0, #0x080 @ Security Register 0 + mvn r3, #0 +3: str r3, [r2] + sub r1, r1, #1 + add r2, r2, #4 @ Next security register + cmp r1, #-1 + bne 3b + @ Set GIC priority mask bit [7] = 1 ldr r0, =0x2c002000 @ CPU GIC base mov r1, #0x80 |