tpm: Add an implementation of define_space
Add support for this so that the TPM can be set up for use with
Chromium OS verified boot.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/include/tpm-v2.h b/include/tpm-v2.h
index 56eaa65..aa8b651 100644
--- a/include/tpm-v2.h
+++ b/include/tpm-v2.h
@@ -240,6 +240,7 @@
TPM2_CC_CLEAR = 0x0126,
TPM2_CC_CLEARCONTROL = 0x0127,
TPM2_CC_HIERCHANGEAUTH = 0x0129,
+ TPM2_CC_NV_DEFINE_SPACE = 0x012a,
TPM2_CC_PCR_SETAUTHPOL = 0x012C,
TPM2_CC_DAM_RESET = 0x0139,
TPM2_CC_DAM_PARAMETERS = 0x013A,
@@ -389,6 +390,23 @@
const ssize_t pw_sz);
/**
+ * Issue a TPM_NV_DefineSpace command
+ *
+ * This allows a space to be defined with given attributes and policy
+ *
+ * @dev TPM device
+ * @space_index index of the area
+ * @space_size size of area in bytes
+ * @nv_attributes TPM_NV_ATTRIBUTES of the area
+ * @nv_policy policy to use
+ * @nv_policy_size size of the policy
+ * @return return code of the operation
+ */
+u32 tpm2_nv_define_space(struct udevice *dev, u32 space_index,
+ size_t space_size, u32 nv_attributes,
+ const u8 *nv_policy, size_t nv_policy_size);
+
+/**
* Issue a TPM2_PCR_Extend command.
*
* @dev TPM device