mb/emulation/qemu-q35: Enable option for TPM

This enables the mainboard to use a TPM if it is selected in the
configuration.  By default this does nothing, but it allows the
TPM to be enabled and used with the CONFIG_USER_TPM2 Kconfig option.

Using a TPM with QEMU requires either a physical TPM backend or
the swtpm package with a socket:

  -chardev socket,id=swtpm,path=/tmp/swtpm/socket
  -tpmdev emulator,id=tpm0,chardev=swtpm
  -device tpm-tis,tpmdev=tpm0

Change-Id: I0d79a5a0f590c57998ababb660b52d9e3ed2d484
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39836
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Duncan Laurie 2020-03-17 18:49:39 -07:00 committed by Patrick Georgi
parent b40e780f8b
commit 516967c681
2 changed files with 6 additions and 1 deletions

View File

@ -12,6 +12,7 @@ config BOARD_SPECIFIC_OPTIONS
select BOARD_ROMSIZE_KB_16384 if VBOOT
select MAINBOARD_HAS_NATIVE_VGA_INIT
select MAINBOARD_FORCE_NATIVE_VGA_INIT
select MAINBOARD_HAS_LPC_TPM
config VBOOT
select VBOOT_MUST_REQUEST_DISPLAY

View File

@ -8,7 +8,11 @@ chip mainboard/emulation/qemu-q35
device pci 0.0 mandatory end # northbridge (q35)
chip southbridge/intel/i82801ix
# present unconditionally
device pci 1f.0 mandatory end # LPC
device pci 1f.0 mandatory
chip drivers/pc80/tpm
device pnp 0c31.0 on end
end
end # LPC
device pci 1f.2 on end # SATA
device pci 1f.3 on end # SMBus