diff options
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/loongarch64/cpu_loop.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/linux-user/loongarch64/cpu_loop.c b/linux-user/loongarch64/cpu_loop.c index 894fdd111a..73d7b6796a 100644 --- a/linux-user/loongarch64/cpu_loop.c +++ b/linux-user/loongarch64/cpu_loop.c @@ -72,6 +72,19 @@ void cpu_loop(CPULoongArchState *env) case EXCCODE_BCE: force_sig_fault(TARGET_SIGSYS, TARGET_SI_KERNEL, env->pc); break; + + /* + * Begin with LSX and LASX disabled, then enable on the first trap. + * In this way we can tell if the unit is in use. This is used to + * choose the layout of any signal frame. + */ + case EXCCODE_SXD: + env->CSR_EUEN |= R_CSR_EUEN_SXE_MASK; + break; + case EXCCODE_ASXD: + env->CSR_EUEN |= R_CSR_EUEN_ASXE_MASK; + break; + case EXCP_ATOMIC: cpu_exec_step_atomic(cs); break; |