diff options
| author | Michał Kopeć <michal.kopec@3mdeb.com> | 2022-02-22 12:30:22 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-03-23 14:58:52 +0000 |
| commit | a691cbd2eb2a5ed98bf1dadbbe3c09065eb0fe2a (patch) | |
| tree | 1051313fa25945095197041278397b4c80ccbe5b | |
| parent | 5deefc8bd3dcd2aafc9c8d377f7d707e274917e9 (diff) | |
drivers/pc80/tpm/tis.c: Use fixed TPM ACPI path
Windows 11 installer expects the TPM to reside under \\_SB_.PCI0 in
ACPI device hierarchy, otherwise the TPM is not detected. Hardcode
the path to fix the issue.
TEST=Boot Windows 11 on Clevo NV41MZ and see the TPM is detected
correctly
TEST=Boot Ubuntu 20.04 on Clevo NV41MZ and see the TPM is detected
correctly
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Signed-off-by: Michał Kopeć <michal.kopec@3mdeb.com>
Change-Id: If0b3136e3eb8eb1bb132132a5f3a7034bdd3b424
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62493
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/drivers/pc80/tpm/tis.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/src/drivers/pc80/tpm/tis.c b/src/drivers/pc80/tpm/tis.c index 455bcf9419..cf46f76c35 100644 --- a/src/drivers/pc80/tpm/tis.c +++ b/src/drivers/pc80/tpm/tis.c @@ -779,12 +779,8 @@ static void lpc_tpm_set_resources(struct device *dev) #if CONFIG(HAVE_ACPI_TABLES) static void lpc_tpm_fill_ssdt(const struct device *dev) { - const char *path = acpi_device_path(dev->bus->dev); - - if (!path) { - path = "\\_SB_.PCI0.LPCB"; - printk(BIOS_DEBUG, "Using default TPM ACPI path: '%s'\n", path); - } + /* Windows 11 requires the following path for TPM to be detected */ + const char *path = "\\_SB_.PCI0"; /* Device */ acpigen_write_scope(path); |