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authorRajiv Andrade <srajiv@linux.vnet.ibm.com>2010-05-13 17:37:54 -0300
committerJames Morris <jmorris@namei.org>2010-05-17 09:08:18 +1000
commit7f2ab000c6f2ae46070807a3bf645c45d8639460 (patch)
treee6488635d01b71d4e469e89f9035efe501b1d56d /drivers/char/tpm/Kconfig
parentb3139bbc52762268769e7af842aade0e64372433 (diff)
downloadblackbird-op-linux-7f2ab000c6f2ae46070807a3bf645c45d8639460.tar.gz
blackbird-op-linux-7f2ab000c6f2ae46070807a3bf645c45d8639460.zip
TPM: ACPI/PNP dependency removal
This patch pushes the ACPI dependency into the device driver code itself. Now, even without ACPI/PNP enabled, the device can be registered using the TIS specified memory space. This will however result in the lack of access to the BIOS event log, being the only implication of such ACPI removal. Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'drivers/char/tpm/Kconfig')
-rw-r--r--drivers/char/tpm/Kconfig6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index f5fc64f89c5c..4dc338f3d1aa 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -17,14 +17,16 @@ menuconfig TCG_TPM
obtained at: <http://sourceforge.net/projects/trousers>. To
compile this driver as a module, choose M here; the module
will be called tpm. If unsure, say N.
- Note: For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI
+ Notes:
+ 1) For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI
and CONFIG_PNPACPI.
+ 2) Without ACPI enabled, the BIOS event log won't be accessible,
+ which is required to validate the PCR 0-7 values.
if TCG_TPM
config TCG_TIS
tristate "TPM Interface Specification 1.2 Interface"
- depends on PNP
---help---
If you have a TPM security chip that is compliant with the
TCG TIS 1.2 TPM specification say Yes and it will be accessible
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