Re: [PATCH] IMA: allow/fix UML builds

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ping?

On 2/23/23 19:27, Randy Dunlap wrote:
> UML supports HAS_IOMEM since 0bbadafdc49d (um: allow disabling
> NO_IOMEM).
> 
> Current IMA build on UML fails on allmodconfig (with TCG_TPM=m):
> 
> ld: security/integrity/ima/ima_queue.o: in function `ima_add_template_entry':
> ima_queue.c:(.text+0x2d9): undefined reference to `tpm_pcr_extend'
> ld: security/integrity/ima/ima_init.o: in function `ima_init':
> ima_init.c:(.init.text+0x43f): undefined reference to `tpm_default_chip'
> ld: security/integrity/ima/ima_crypto.o: in function `ima_calc_boot_aggregate_tfm':
> ima_crypto.c:(.text+0x1044): undefined reference to `tpm_pcr_read'
> ld: ima_crypto.c:(.text+0x10d8): undefined reference to `tpm_pcr_read'
> 
> Modify the IMA Kconfig entry so that it selects TCG_TPM if HAS_IOMEM
> is set, regardless of the UML Kconfig setting.
> This updates TCG_TPM from =m to =y and fixes the linker errors.
> 
> Fixes: f4a0391dfa91 ("ima: fix Kconfig dependencies")
> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> Cc: Mimi Zohar <zohar@xxxxxxxxxxxxx>
> Cc: Dmitry Kasatkin <dmitry.kasatkin@xxxxxxxxx>
> Cc: linux-integrity@xxxxxxxxxxxxxxx
> Cc: Fabio Estevam <festevam@xxxxxxxxx>
> Cc: Rajiv Andrade <srajiv@xxxxxxxxxxxxxxxxxx>
> Cc: Richard Weinberger <richard@xxxxxx>
> Cc: Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>
> Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
> Cc: linux-um@xxxxxxxxxxxxxxxxxxx
> ---
>  security/integrity/ima/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff -- a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
> --- a/security/integrity/ima/Kconfig
> +++ b/security/integrity/ima/Kconfig
> @@ -8,7 +8,7 @@ config IMA
>  	select CRYPTO_HMAC
>  	select CRYPTO_SHA1
>  	select CRYPTO_HASH_INFO
> -	select TCG_TPM if HAS_IOMEM && !UML
> +	select TCG_TPM if HAS_IOMEM
>  	select TCG_TIS if TCG_TPM && X86
>  	select TCG_CRB if TCG_TPM && ACPI
>  	select TCG_IBMVTPM if TCG_TPM && PPC_PSERIES

-- 
~Randy



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