diff mbox

[04/20] target/arm: Register second AddressSpace for secure v8M CPUs

Message ID 1503414539-28762-5-git-send-email-peter.maydell@linaro.org
State New
Headers show

Commit Message

Peter Maydell Aug. 22, 2017, 3:08 p.m. UTC 
If a v8M CPU supports the security extension then we need to
give it two AddressSpaces, the same way we do already for
an A profile core with EL3.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/cpu.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

Comments

Richard Henderson Aug. 29, 2017, 3:29 p.m. UTC | #1 
On 08/22/2017 08:08 AM, Peter Maydell wrote:
> If a v8M CPU supports the security extension then we need to
> give it two AddressSpaces, the same way we do already for
> an A profile core with EL3.
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
>  target/arm/cpu.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~
diff mbox

Patch

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index f32317e..ae866be 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -843,22 +843,21 @@  static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
     init_cpreg_list(cpu);
 
 #ifndef CONFIG_USER_ONLY
-    if (cpu->has_el3) {
-        cs->num_ases = 2;
-    } else {
-        cs->num_ases = 1;
-    }
-
-    if (cpu->has_el3) {
+    if (cpu->has_el3 || arm_feature(env, ARM_FEATURE_M_SECURITY)) {
         AddressSpace *as;
 
+        cs->num_ases = 2;
+
         if (!cpu->secure_memory) {
             cpu->secure_memory = cs->memory;
         }
         as = address_space_init_shareable(cpu->secure_memory,
                                           "cpu-secure-memory");
         cpu_address_space_init(cs, as, ARMASIdx_S);
+    } else {
+        cs->num_ases = 1;
     }
+
     cpu_address_space_init(cs,
                            address_space_init_shareable(cs->memory,
                                                         "cpu-memory"),