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s390/ipl: read IPL report at early boot

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Read the IPL Report block provided by secure-boot, add the entries
of the certificate list to the system key ring and print the list
of components.

PR: Adjust to Vasilys bootdata_preserved patch set. Preserve ipl_cert_list
for later use in kexec_file.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky 2019-02-21 14:23:04 +01:00
parent d29af5b7a8
commit 9641b8cc73
10 changed files with 301 additions and 17 deletions
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19
arch/s390/kernel/ipl.c
View file

@ -122,6 +122,13 @@ static char *dump_type_str(enum dump_type type)
int __bootdata_preserved(ipl_block_valid);
struct ipl_parameter_block __bootdata_preserved(ipl_block);
int __bootdata_preserved(ipl_secure_flag);
unsigned long __bootdata_preserved(ipl_cert_list_addr);
unsigned long __bootdata_preserved(ipl_cert_list_size);
unsigned long __bootdata(early_ipl_comp_list_addr);
unsigned long __bootdata(early_ipl_comp_list_size);
static int reipl_capabilities = IPL_TYPE_UNKNOWN;
@ -267,6 +274,15 @@ static ssize_t ipl_type_show(struct kobject *kobj, struct kobj_attribute *attr,
static struct kobj_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type);
static ssize_t ipl_secure_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)
{
return sprintf(page, "%i\n", !!ipl_secure_flag);
}
static struct kobj_attribute sys_ipl_secure_attr =
__ATTR(secure, 0444, ipl_secure_show, NULL);
static ssize_t ipl_vm_parm_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)
{
@ -362,6 +378,7 @@ static struct attribute *ipl_fcp_attrs[] = {
&sys_ipl_fcp_bootprog_attr.attr,
&sys_ipl_fcp_br_lba_attr.attr,
&sys_ipl_ccw_loadparm_attr.attr,
&sys_ipl_secure_attr.attr,
NULL,
};
@ -377,6 +394,7 @@ static struct attribute *ipl_ccw_attrs_vm[] = {
&sys_ipl_device_attr.attr,
&sys_ipl_ccw_loadparm_attr.attr,
&sys_ipl_vm_parm_attr.attr,
&sys_ipl_secure_attr.attr,
NULL,
};
@ -384,6 +402,7 @@ static struct attribute *ipl_ccw_attrs_lpar[] = {
&sys_ipl_type_attr.attr,
&sys_ipl_device_attr.attr,
&sys_ipl_ccw_loadparm_attr.attr,
&sys_ipl_secure_attr.attr,
NULL,
};