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[RFC,1/1] hw/arm: Setup EL1 and EL2 in AArch64 mode for 64bit Linux boots

Message ID 1453938171-13665-2-git-send-email-edgar.iglesias@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Edgar E. Iglesias Jan. 27, 2016, 11:42 p.m. UTC 
From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>

When booting Linux on AArch64 enabled cores, setup EL1 and
EL2 to use AArch64.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
---
 hw/arm/boot.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index 7742dd3..d05a998 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -488,7 +488,9 @@  static void do_cpu_reset(void *opaque)
                  * adjust.
                  */
                 if (env->aarch64) {
+                    env->cp15.scr_el3 |= SCR_RW;
                     if (arm_feature(env, ARM_FEATURE_EL2)) {
+                        env->cp15.hcr_el2 |= HCR_RW;
                         env->pstate = PSTATE_MODE_EL2h;
                     } else {
                         env->pstate = PSTATE_MODE_EL1h;