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authorVasily Gorbik <gor@linux.ibm.com>2020-01-21 09:43:10 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2020-02-27 19:44:40 +0100
commit084ea4d611a3d00ee3930400b262240e10895900 (patch)
treea1ae3bc906bf6d5b64a4d372b42c1d5c5d5ab0d8 /arch/s390/kernel/entry.h
parent214d9bbcd3a67230b932f6cea83c078ab34d9e70 (diff)
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s390/mm: add (non)secure page access exceptions handlers
Add exceptions handlers performing transparent transition of non-secure pages to secure (import) upon guest access and secure pages to non-secure (export) upon hypervisor access. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> [frankja@linux.ibm.com: adding checks for failures] Signed-off-by: Janosch Frank <frankja@linux.ibm.com> [imbrenda@linux.ibm.com: adding a check for gmap fault] Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [borntraeger@de.ibm.com: patch merging, splitting, fixing] Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry.h')
-rw-r--r--arch/s390/kernel/entry.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index 1d3927e01a5f..faca269d5f27 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -24,6 +24,8 @@ asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
void do_protection_exception(struct pt_regs *regs);
void do_dat_exception(struct pt_regs *regs);
+void do_secure_storage_access(struct pt_regs *regs);
+void do_non_secure_storage_access(struct pt_regs *regs);
void addressing_exception(struct pt_regs *regs);
void data_exception(struct pt_regs *regs);