[meta-xilinx] [PATCH 1/2] recipes-zynqmp/qemu_2.6%: Disable EL3 for the A53s

[Alistair Francis]

The Xilinx kernel doesn't support having EL3 enabled and EL2 disabled.
As EL2 is not yet supported on mainline QEMU disable EL3 until we can
support a complete boot flow.

Signed-off-by: Alistair Francis <alistair.francis at xilinx.com>
---
 .../8fa2346723fb74e8220ac9f186dabc2f57e4cb43.patch | 29 ++++++++++++++++++++++
 recipes-zynqmp/qemu/qemu_2.6%.bbappend             |  8 ++++++
 2 files changed, 37 insertions(+)
 create mode 100644 recipes-zynqmp/qemu/files/8fa2346723fb74e8220ac9f186dabc2f57e4cb43.patch
 create mode 100644 recipes-zynqmp/qemu/qemu_2.6%.bbappend

diff --git a/recipes-zynqmp/qemu/files/8fa2346723fb74e8220ac9f186dabc2f57e4cb43.patch b/recipes-zynqmp/qemu/files/8fa2346723fb74e8220ac9f186dabc2f57e4cb43.patch
new file mode 100644
index 0000000..61a4f0a
--- /dev/null
+++ b/recipes-zynqmp/qemu/files/8fa2346723fb74e8220ac9f186dabc2f57e4cb43.patch
@@ -0,0 +1,29 @@
+From 8fa2346723fb74e8220ac9f186dabc2f57e4cb43 Mon Sep 17 00:00:00 2001
+From: Alistair Francis <alistair.francis at xilinx.com>
+Date: Wed, 15 Jun 2016 10:39:55 -0700
+Subject: [PATCH] target-arm: Disable EL3 on A53
+
+The Xilinx kernel doesn't support having EL3 enabled and EL2 disabled.
+As EL2 is not yet supported on mainline QEMU disable EL3 until we can
+support a complete boot flow.
+
+Signed-off-by: Alistair Francis <alistair.francis at xilinx.com>
+---
+ target-arm/cpu64.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/target-arm/cpu64.c b/target-arm/cpu64.c
+index 1635deb..0896259 100644
+--- a/target-arm/cpu64.c
++++ b/target-arm/cpu64.c
+@@ -165,7 +165,6 @@ static void aarch64_a53_initfn(Object *obj)
+     set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
+     set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
+     set_feature(&cpu->env, ARM_FEATURE_CRC);
+-    set_feature(&cpu->env, ARM_FEATURE_EL3);
+     cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A53;
+     cpu->midr = 0x410fd034;
+     cpu->revidr = 0x00000000;
+-- 
+2.7.4
+
diff --git a/recipes-zynqmp/qemu/qemu_2.6%.bbappend b/recipes-zynqmp/qemu/qemu_2.6%.bbappend
new file mode 100644
index 0000000..074f6cf
--- /dev/null
+++ b/recipes-zynqmp/qemu/qemu_2.6%.bbappend
@@ -0,0 +1,8 @@
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+
+SRC_URI += " \
+			file://8fa2346723fb74e8220ac9f186dabc2f57e4cb43.patch \
+		   "
+
+
-- 
2.7.4