diff options
| -rw-r--r-- | lib/sbi/sbi_emulate_csr.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sbi/sbi_emulate_csr.c b/lib/sbi/sbi_emulate_csr.c index c2253c82..4558abff 100644 --- a/lib/sbi/sbi_emulate_csr.c +++ b/lib/sbi/sbi_emulate_csr.c @@ -90,7 +90,8 @@ int sbi_emulate_csr_read(int csr_num, struct sbi_trap_regs *regs, *csr_val = csr_read(CSR_MCYCLEH); break; case CSR_TIMEH: - /* Refer comments on TIME CSR above. */ + if (!hpm_allowed(csr_num - CSR_CYCLEH, prev_mode, virt)) + return SBI_ENOTSUPP; *csr_val = (virt) ? sbi_timer_virt_value() >> 32: sbi_timer_value() >> 32; break; |