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authorSimon Glass <sjg@chromium.org>2021-02-06 14:23:39 -0700
committerTom Rini <trini@konsulko.com>2021-03-02 15:53:37 -0500
commiteadcbc7896e8d3eefafc8a34dee125a7d7eecead (patch)
tree0d3e45b04d1b41e8f826a33b1f107d5926164430 /include/tpm-v2.h
parent1bea7cc430316674dfe3dd44b6bb53c38c4946cd (diff)
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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>
Diffstat (limited to 'include/tpm-v2.h')
-rw-r--r--include/tpm-v2.h18
1 files changed, 18 insertions, 0 deletions
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 @@ enum tpm2_command_codes {
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 @@ u32 tpm2_clear(struct udevice *dev, u32 handle, const char *pw,
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