Add Qemu adn UEFI Capsule Update support

[DaniilKl]

This PR adds support for Qemu so to be able to test DTS and its features more easily. Additionally, this PR adds support for Dasharo firmware updates provided via UEFI capsules.

[DaniilKl]

@macpijan, thought it is not a part of this PR, I have a question about EC firmware installation process.

Currently in scripts/dasharo-deploy, in function install we have a code, which installs EC firmware:

(...)
  if [ "$HAVE_EC" == "true" ]; then
    echo "Checking for Open Source Embedded Controller firmware"
    $DASHARO_ECTOOL info >> $ERR_LOG_FILE 2>&1
    if [ $? -eq 0 ]; then
      echo "Device has already Open Source Embedded Controller firmware, do not flash EC..."
    else
      _ec_fw_version=$($FLASHROM -p "$PROGRAMMER_EC" ${FLASH_CHIP_SELECT} | grep "Mainboard EC Version" | tr -d ' ' | cut -d ':' -f 2)
      if [ "$_ec_fw_version" != "$COMPATIBLE_EC_FW_VERSION" ]; then
        print_warning "EC version: $_ec_fw_version is not supported, update required"
        install_ec
      fi
    fi
  fi
(...)

IIUC, we want EC firmware version to match COMPATIBLE_EC_FW_VERSION which is an EC firmware version needed by Dasharo firmware. If it so, why we skip checking version of the EC firmware in case Device has already Open Source Embedded Controller firmware, do not flash EC... ? If a device already has some "Open Source Embedded Controller firmware", it does not mean it has the right version.

[macpijan]

If it so, why we skip checking version of the EC firmware in case Device has already Open Source Embedded Controller firmware, do not flash EC... ? If a device already has some "Open Source Embedded Controller firmware", it does not mean it has the right version.

If a device already has open-source EC, then it most likely already has Dasharo as well, and the install function would not be called at all, as this is for initial deployment mostly, IIRC?

[DaniilKl]

as this is for initial deployment mostly, IIRC?

It is.

If a device already has open-source EC, then it most likely already has Dasharo as well, and the install function would not be called at all

Ok then, but nobody stops a user with Dasharo installed to choose install Dasharo to install another version (e.g. intentionally downgrade) that will lead him to not installing proper version of EC firmware, I cannot find any code which will restrict such case.

[macpijan]

Ok then, but nobody stops a user with Dasharo installed to choose install Dasharo to install another version (e.g. intentionally downgrade) that will lead him to not installing proper version of EC firmware, I cannot find any code which will restrict such case.

If Dasharo is displayed, Install Dasharo option is not visible in the menu. Only option to update Dasahro should be visible at this point.

[DaniilKl]

If Dasharo is displayed, Install Dasharo option is not visible in the menu. Only option to update Dasahro should be visible at this point.

My bad, have forgotten about it.

[DaniilKl]

Forgot to delete one WIP commit. Deleted now.

[m-iwanicki]

Looks fine. Will need to be tested before release