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mb/emulation/qemu-q35: Increase max size of ACPI tables 

When the TPM is enabled in QEMU the fw_cfg interface will return
~200KiB of ACPI tables, so this needs to be increased from the default
in order to be able to boot.

This is seen when using a TPM with qemu as it will hang when
processing the fw_cfg tables.

qemu-system-x86_64 \
  -machine q35 -enable-kvm -vga virtio -serial stdio \
  -drive 'id=hd,file=disk.bin' -bios coreboot.rom \
  -chardev 'socket,id=swtpm,path=/tmp/swtpm/swtpm-sock' \
  -tpmdev 'emulator,id=tpm0,chardev=swtpm' \
  -device 'tpm-tis,tpmdev=tpm0'

Change-Id: I21980aace8e86e636f5ae7b55148f4c31404edba
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39833
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Duncan Laurie 2020-03-17 18:35:21 -07:00 committed by Patrick Georgi
parent f02bf35e00
commit 9f5c8503d1
1 changed files with 5 additions and 0 deletions
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5
src/mainboard/emulation/qemu-q35/Kconfig
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@ -51,6 +51,11 @@ config MMCONF_BASE_ADDRESS
hex hex
default 0xb0000000 default 0xb0000000
# fw_cfg tables can be larger than the default when TPM is enabled
config MAX_ACPI_TABLE_SIZE_KB
int
default 224
# Skip the first 64KiB as coreboot table pointer is installed # Skip the first 64KiB as coreboot table pointer is installed
# at address 0 # at address 0
config DCACHE_RAM_BASE config DCACHE_RAM_BASE