čt 10. 10. 2019 v 11:13 odesílatel Michal Simek michal.simek@xilinx.com napsal:

Function should report error when called in EL3 context. Also report it as error instead 0 (success).

Reported-by: Luca Ceresoli luca@lucaceresoli.net Signed-off-by: Michal Simek michal.simek@xilinx.com

---

Based on https://lists.denx.de/pipermail/u-boot/2019-October/385462.html series.

---

drivers/firmware/firmware-zynqmp.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/firmware-zynqmp.c b/drivers/firmware/firmware-zynqmp.c index adcef15e22aa..4911734f6c63 100644 --- a/drivers/firmware/firmware-zynqmp.c +++ b/drivers/firmware/firmware-zynqmp.c @@ -156,8 +156,10 @@ int __maybe_unused xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2, */ struct pt_regs regs;

•   if (current_el() == 3)
  

•           return 0;
  

•   if (current_el() == 3) {
  

•           printf("%s: Can't call SMC from EL3 context\n", __func__);
  

•           return -EPERM;
  

•   }
  
    regs.regs[0] = PM_SIP_SVC | api_id;
    regs.regs[1] = ((u64)arg1 << 32) | arg0;
  

-- 2.17.1

Applied. M