Intel SVT CCA Source Level Debugging

[msoral]

Hi,

I am using SVT CCA with Intel System Studio 2020 to debug UEFI BIOS on Intel i7 Gen9. With the help of Intel System Debugger documentation I can stop and see the current address of any CPU core. However I would like to debug an UEFI BIOS application line by line from source, seeing variables etc. Is there any support for this kind of usage, if so where can the documentation be found?

[PengHuang]

Hi,

could you let us know your corporate name? we can only support this tool with our NDA customers.

Yes, you can use Intel system debugger (ISD) to source-level debug your UEFI codes, but your ISD 2020 looks like too old, you can register our latest ISD 2024 (U2430) here https://lemcenter.intel.com/forms/?productId=ps_3533 with your corporate email address, after our approval then you can download and use it, please noted that your party needs an NDA with Intel to apply for this product.

You can check ISD user guide for tool usage, or open a Support Ticket in our Online Service Center under the product “Intel® System Bring-up Toolkit NDA”
https://supporttickets.intel.com/
  - if you are a new user, you need to create an account

[msoral]

Hi Peng, Sorry for the late response. Thank you for the links. I have downloaded U2430. Since I am using Intel SBL with GCC I am loading EFI files manually and there is no problem path mapping. However after stopping a thread and adding a breakpoint it says “Cannot resume. Failed to read from state node tap.readpdr.after_pm_entry.prior_state on device ‘CFL_C0_T0’ (0x00001001). Failed to transition precondition ‘MinimumStateSaved’ to state ‘true’ for device ‘CFL_C0_T0’ … “ From this point CPU becomes unresponsive and requires a hard reset. Also “Unexpected data corruption detected while perfoming TAP reset for JTAG chain 1. JTAG chain is unreliable, verify Probe frequency/electrical settings and platform signal integrity” warning shows up at Debugger CLI. What steps should we take take to fix these?

Thank you for your help.

[PengHuang]

Hi,

This is an analyzer forum, could you open a Support Ticket in our Online Service Center to us under the product “Intel® System Bring-up Toolkit NDA” https://supporttickets.intel.com/? if you are a new user, you need to create an account.

you can upload the error log and screenshot of ISD to us in the ticket. please note to use your corporate email in ticket.

Here is SBL source level debugging BKM with ISD for your reference, thanks

https://slimbootloader.github.io/developer-guides/debugging-with-cca.html