[v7,04/42] target/arm: Add support for MTE to HCR_EL2 and SCR_EL3

Message ID 20200603011317.473934-5-richard.henderson@linaro.org
State New
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Series
  • [v7,01/42] target/arm: Add isar tests for mte
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Commit Message

Richard Henderson June 3, 2020, 1:12 a.m.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 target/arm/helper.c | 6 ++++++
 1 file changed, 6 insertions(+)

-- 
2.25.1

Comments

Peter Maydell June 18, 2020, 11:02 a.m. | #1
On Wed, 3 Jun 2020 at 02:13, Richard Henderson
<richard.henderson@linaro.org> wrote:
>

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

> ---

>  target/arm/helper.c | 6 ++++++

>  1 file changed, 6 insertions(+)


Reviewed-by: Peter Maydell <peter.maydell@linaro.org>


thanks
-- PMM

Patch

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 7862bf502d..f2ead07ead 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -2021,6 +2021,9 @@  static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
         if (cpu_isar_feature(aa64_pauth, cpu)) {
             valid_mask |= SCR_API | SCR_APK;
         }
+        if (cpu_isar_feature(aa64_mte, cpu)) {
+            valid_mask |= SCR_ATA;
+        }
     } else {
         valid_mask &= ~(SCR_RW | SCR_ST);
     }
@@ -5248,6 +5251,9 @@  static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask)
         if (cpu_isar_feature(aa64_pauth, cpu)) {
             valid_mask |= HCR_API | HCR_APK;
         }
+        if (cpu_isar_feature(aa64_mte, cpu)) {
+            valid_mask |= HCR_ATA | HCR_TID5;
+        }
     }
 
     /* Clear RES0 bits.  */