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| author | Namyoon Woo <namyoon@chromium.org> | 2019-10-30 16:57:44 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-12-09 18:09:01 +0000 |
| commit | 939160b5b82424e57457a3d07dccfe7127681787 (patch) | |
| tree | 5c2d381704826810cc892f73a2755d14b56c8e23 | |
| parent | 76f923047f4395993d4df7bae0c7d7d515075887 (diff) | |
| download | chrome-ec-939160b5b82424e57457a3d07dccfe7127681787.tar.gz | |
cr50: narrow the condition for custom TPM command codes
CR50 used to detects the custom TPM command code if the vendor
specific bit field is set.
This patch enfornces this condition by comparing the command code
to 0x20000000 value.
It is planned to support extended TPM commands, which are not yet
standard, and those commands shall have 0x20000000|x as their command
code. This patch will pass those commands to tpm2 library directly by
calling ExecuteCommand().
BUG=b:140527213
BRANCH=cr50
TEST=ran gsctools with -m, -o, -i options.
Cq-Depend: chromium:1892419
Change-Id: I43ce52bee96f6b6def8e4bf3a14f092b3235740a
Signed-off-by: Namyoon Woo <namyoon@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1891523
Reviewed-by: Andrey Pronin <apronin@chromium.org>
| -rw-r--r-- | common/tpm_registers.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/common/tpm_registers.c b/common/tpm_registers.c index 6a57fa814f..cd50c8574a 100644 --- a/common/tpm_registers.c +++ b/common/tpm_registers.c @@ -643,7 +643,7 @@ size_t tpm_get_burst_size(void) /* Recognize both original extension and new vendor-specific command codes */ #define IS_CUSTOM_CODE(code) \ ((code == CONFIG_EXTENSION_COMMAND) || \ - (code & TPM_CC_VENDOR_BIT_MASK)) + (code == TPM_CC_VENDOR_BIT_MASK)) static void call_extension_command(struct tpm_cmd_header *tpmh, size_t *total_size, |