diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-02-02 19:12:17 +0530 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-02-27 13:46:37 -0800 |
| commit | 5f3616ccceb5d5c49f99838c78498e581fb42fc5 (patch) | |
| tree | d44d99603f2329c984d4d9d2ba3ffccab382b50a /hw/riscv/sifive_clint.c | |
| parent | c695724868ce4049fd79c5a509880dbdf171e744 (diff) | |
| download | qemu-5f3616ccceb5d5c49f99838c78498e581fb42fc5.zip | |
hw/riscv: Provide rdtime callback for TCG in CLINT emulation
This patch extends CLINT emulation to provide rdtime callback for
TCG. This rdtime callback will be called wheneven TIME CSRs are
read in privileged modes.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'hw/riscv/sifive_clint.c')
| -rw-r--r-- | hw/riscv/sifive_clint.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/hw/riscv/sifive_clint.c b/hw/riscv/sifive_clint.c index e2feee871b..e933d35092 100644 --- a/hw/riscv/sifive_clint.c +++ b/hw/riscv/sifive_clint.c @@ -227,7 +227,8 @@ type_init(sifive_clint_register_types) * Create CLINT device. */ DeviceState *sifive_clint_create(hwaddr addr, hwaddr size, uint32_t num_harts, - uint32_t sip_base, uint32_t timecmp_base, uint32_t time_base) + uint32_t sip_base, uint32_t timecmp_base, uint32_t time_base, + bool provide_rdtime) { int i; for (i = 0; i < num_harts; i++) { @@ -236,6 +237,9 @@ DeviceState *sifive_clint_create(hwaddr addr, hwaddr size, uint32_t num_harts, if (!env) { continue; } + if (provide_rdtime) { + riscv_cpu_set_rdtime_fn(env, cpu_riscv_read_rtc); + } env->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &sifive_clint_timer_cb, cpu); env->timecmp = 0; |