| Message ID | 20250127145855.645845-6-raymond.mao@linaro.org |
|---|---|
| State | Accepted |
| Commit | e7e166dabf129aae1fc57fe637ffc37d022ea45a |
| Delegated to: | Ilias Apalodimas |
| Headers | show |
| Series | Reconfigure TPM when active hash algorithms dismatch | expand |
On Mon, 27 Jan 2025 at 16:59, Raymond Mao <raymond.mao@linaro.org> wrote: > > During PCR extend process, if any unsupported algorithms are active, > try to use PCR allocate to inactivate them. > > Signed-off-by: Raymond Mao <raymond.mao@linaro.org> > Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> > --- > changes in v2 > - None. > changes in v3 > - None. > > lib/tpm-v2.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c > index aa02a9e961..9ca7933c09 100644 > --- a/lib/tpm-v2.c > +++ b/lib/tpm-v2.c > @@ -344,7 +344,10 @@ u32 tpm2_pcr_extend(struct udevice *dev, u32 index, u32 algorithm, > > if (!tpm2_check_active_banks(dev)) { > log_err("Cannot extend PCRs if all the TPM enabled algorithms are not supported\n"); > - return -EINVAL; > + > + ret = tpm2_pcr_allocate(dev, 0); > + if (ret) > + return -EINVAL; > } > /* > * Fill the command structure starting from the first buffer: > -- > 2.25.1 > Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c index aa02a9e961..9ca7933c09 100644 --- a/lib/tpm-v2.c +++ b/lib/tpm-v2.c @@ -344,7 +344,10 @@ u32 tpm2_pcr_extend(struct udevice *dev, u32 index, u32 algorithm, if (!tpm2_check_active_banks(dev)) { log_err("Cannot extend PCRs if all the TPM enabled algorithms are not supported\n"); - return -EINVAL; + + ret = tpm2_pcr_allocate(dev, 0); + if (ret) + return -EINVAL; } /* * Fill the command structure starting from the first buffer: