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authorRichard Henderson <richard.henderson@linaro.org>2022-05-06 13:02:32 -0500
committerPeter Maydell <peter.maydell@linaro.org>2022-05-09 11:47:54 +0100
commitda3d8b13624246702f7b8b88e37ee525a2f39ad2 (patch)
treeb73b1e9864b7a6ad035b94ae4b77d971cf31b580
parent58e93b48aa1b9f0e6de7e57f6f68b6dda7a8198a (diff)
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target/arm: Enable SCR and HCR bits for RAS
Enable writes to the TERR and TEA bits when RAS is enabled. These bits are otherwise RES0. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220506180242.216785-15-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--target/arm/helper.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 37c5e42..b6faebf 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -1755,6 +1755,9 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
}
valid_mask &= ~SCR_NET;
+ if (cpu_isar_feature(aa64_ras, cpu)) {
+ valid_mask |= SCR_TERR;
+ }
if (cpu_isar_feature(aa64_lor, cpu)) {
valid_mask |= SCR_TLOR;
}
@@ -1769,6 +1772,9 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
}
} else {
valid_mask &= ~(SCR_RW | SCR_ST);
+ if (cpu_isar_feature(aa32_ras, cpu)) {
+ valid_mask |= SCR_TERR;
+ }
}
if (!arm_feature(env, ARM_FEATURE_EL2)) {
@@ -5126,6 +5132,9 @@ static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask)
if (cpu_isar_feature(aa64_vh, cpu)) {
valid_mask |= HCR_E2H;
}
+ if (cpu_isar_feature(aa64_ras, cpu)) {
+ valid_mask |= HCR_TERR | HCR_TEA;
+ }
if (cpu_isar_feature(aa64_lor, cpu)) {
valid_mask |= HCR_TLOR;
}