On 4/8/25 11:55 AM, Zhuoying Cai wrote:
> If secure boot in audit mode or True Secure IPL mode is enabled without
> specifying a boot device, the boot process will terminate with an error.
>
> Signed-off-by: Zhuoying Cai <[email protected]>
> ---
> hw/s390x/ipl.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
> index 60bafcbd2e..0510f16a7d 100644
> --- a/hw/s390x/ipl.c
> +++ b/hw/s390x/ipl.c
> @@ -767,6 +767,16 @@ void s390_ipl_prepare_cpu(S390CPU *cpu)
> s390_ipl_create_cert_store(&ipl->cert_store);
> if (!ipl->iplb_valid) {
> ipl->iplb_valid = s390_init_all_iplbs(ipl);
> +
> + /*
> + * Secure IPL without specifying a boot device.
> + * IPLB is not generated if no boot device is defined.
> + */
> + if ((s390_has_certificate() || s390_secure_boot_enabled()) &&
> + !ipl->iplb_valid) {
> + error_report("No boot devicie defined for Secure IPL");
> + exit(1);
> + }
I'm confused why this check is needed. If there is no valid iplb, won't
boot just fail outright anyway?
> } else {
> ipl->qipl.chain_len = 0;
> }
--
Regards,
Collin
