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[PATCH 01/14] target/arm: add arm_is_el2_enabled() helper
From: |
remi . denis . courmont |
Subject: |
[PATCH 01/14] target/arm: add arm_is_el2_enabled() helper |
Date: |
Mon, 2 Nov 2020 12:57:49 +0200 |
From: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
This checks if EL2 is enabled (meaning EL2 registers take effects) in
the current security context.
Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
---
target/arm/cpu.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index c18a916766..aaf3671806 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -2040,6 +2040,15 @@ static inline bool arm_is_secure(CPUARMState *env)
return arm_is_secure_below_el3(env);
}
+/* Return true if the current security state has AArch64 EL2 or AArch32 Hyp */
+static inline bool arm_is_el2_enabled(CPUARMState *env)
+{
+ if (arm_feature(env, ARM_FEATURE_EL2)) {
+ return !arm_is_secure_below_el3(env);
+ }
+ return false;
+}
+
#else
static inline bool arm_is_secure_below_el3(CPUARMState *env)
{
@@ -2050,6 +2059,11 @@ static inline bool arm_is_secure(CPUARMState *env)
{
return false;
}
+
+static inline bool arm_is_el2_enabled(CPUARMState *env)
+{
+ return false;
+}
#endif
/**
--
2.29.1
- [PATCH 01/14] target/arm: add arm_is_el2_enabled() helper,
remi . denis . courmont <=