diff options
| -rw-r--r-- | target/arm/cpu.c | 10 | ||||
| -rw-r--r-- | target/arm/internals.h | 4 | ||||
| -rw-r--r-- | tests/tcg/aarch64/pauth-2.c | 1 |
3 files changed, 5 insertions, 10 deletions
diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 5cf6c056c5..70cfcbc918 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -205,14 +205,10 @@ static void arm_cpu_reset(DeviceState *dev) env->vfp.zcr_el[1] = MIN(cpu->sve_max_vq - 1, 3); } /* - * Enable TBI0 and TBI1. While the real kernel only enables TBI0, - * turning on both here will produce smaller code and otherwise - * make no difference to the user-level emulation. - * - * In sve_probe_page, we assume that this is set. - * Do not modify this without other changes. + * Enable TBI0 but not TBI1. + * Note that this must match useronly_clean_ptr. */ - env->cp15.tcr_el[1].raw_tcr = (3ULL << 37); + env->cp15.tcr_el[1].raw_tcr = (1ULL << 37); #else /* Reset into the highest available EL */ if (arm_feature(env, ARM_FEATURE_EL3)) { diff --git a/target/arm/internals.h b/target/arm/internals.h index b251fe4450..112bbb14f0 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -1425,9 +1425,9 @@ static inline bool tcma_check(uint32_t desc, int bit55, int ptr_tag) */ static inline uint64_t useronly_clean_ptr(uint64_t ptr) { - /* TBI is known to be enabled. */ #ifdef CONFIG_USER_ONLY - ptr = sextract64(ptr, 0, 56); + /* TBI0 is known to be enabled, while TBI1 is disabled. */ + ptr &= sextract64(ptr, 0, 56); #endif return ptr; } diff --git a/tests/tcg/aarch64/pauth-2.c b/tests/tcg/aarch64/pauth-2.c index 9bba0beb63..978652ede3 100644 --- a/tests/tcg/aarch64/pauth-2.c +++ b/tests/tcg/aarch64/pauth-2.c @@ -53,7 +53,6 @@ void do_test(uint64_t value) int main() { do_test(0); - do_test(-1); do_test(0xda004acedeadbeefull); return 0; } |