Re: [PATCH] commands/bli: set UINT32_MAX in LoaderTpm2ActivePcrBanks if TPM2 present but no banks protocol

On Wed, Dec 10, 2025 at 11:47:53PM +0000, [email protected] wrote:
> From: Luca Boccassi <[email protected]>
>
> The implementation in sd-boot was changed to return UINT32_MAX when
> the EFI environment detects a working TPM2, but with an older firmware
> that doesn't implement the protocol to get the list of active banks.
> This allows distinguishing with the case where there is no working TPM2,
> in which case userspace just gives up, and instead lets userspace try to
> figure it out later.
>
> Fixes: f326c5c47 (commands/bli: Set LoaderTpm2ActivePcrBanks runtime variable)
>
> Signed-off-by: Luca Boccassi <[email protected]>

Reviewed-by: Daniel Kiper <[email protected]>

Daniel

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