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authorPeter Crosthwaite <peter.crosthwaite@xilinx.com>2016-03-04 11:30:19 +0000
committerPeter Maydell <peter.maydell@linaro.org>2016-03-04 11:30:19 +0000
commited50ff7875d61a75517c92deb0444d73fbbca878 (patch)
tree3ca6e116bd31d3fea04fe7df2fd0945f5e6e35db /target-arm/cpu.h
parentf9fd40ebe4f55e0048e002925b8d65e66d56e7a7 (diff)
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target-arm: cpu: Move cpu_is_big_endian to header
There is a CPU data endianness test that is used to drive the virtio_big_endian test. Move this up to the header so it can be more generally used for endian tests. The KVM specific cpu_syncronize_state call is left behind in the virtio specific function. Rename it arm_cpu-data_is_big_endian() to more accurately capture that this is for data accesses only. Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/cpu.h')
-rw-r--r--target-arm/cpu.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 61b8b03..75e5ea0 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -1908,6 +1908,25 @@ static inline bool arm_sctlr_b(CPUARMState *env)
(env->cp15.sctlr_el[1] & SCTLR_B) != 0;
}
+/* Return true if the processor is in big-endian mode. */
+static inline bool arm_cpu_data_is_big_endian(CPUARMState *env)
+{
+ int cur_el;
+
+ /* In 32bit endianness is determined by looking at CPSR's E bit */
+ if (!is_a64(env)) {
+ return (env->uncached_cpsr & CPSR_E) ? 1 : 0;
+ }
+
+ cur_el = arm_current_el(env);
+
+ if (cur_el == 0) {
+ return (env->cp15.sctlr_el[1] & SCTLR_E0E) != 0;
+ }
+
+ return (env->cp15.sctlr_el[cur_el] & SCTLR_EE) != 0;
+}
+
#include "exec/cpu-all.h"
/* Bit usage in the TB flags field: bit 31 indicates whether we are