diff options
Diffstat (limited to 'arch/s390/mm')
| -rw-r--r-- | arch/s390/mm/fault.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index e173b6187ad5..af1ac49168fb 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -837,6 +837,16 @@ NOKPROBE_SYMBOL(do_non_secure_storage_access); void do_secure_storage_violation(struct pt_regs *regs) { + unsigned long gaddr = regs->int_parm_long & __FAIL_ADDR_MASK; + struct gmap *gmap = (struct gmap *)S390_lowcore.gmap; + + /* + * If the VM has been rebooted, its address space might still contain + * secure pages from the previous boot. + * Clear the page so it can be reused. + */ + if (!gmap_destroy_page(gmap, gaddr)) + return; /* * Either KVM messed up the secure guest mapping or the same * page is mapped into multiple secure guests. |