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| author |   David Hildenbrand <dahi@linux.vnet.ibm.com> | 2016-03-08 12:31:52 +0100 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2016-06-20 09:55:08 +0200 |
| commit | 4a49443924731823da2e9b3ae9311b74a34e7ed8 (patch) | |
| tree | d65b91881e0a62a8e3b8aafdf982e978c46869aa /arch/s390/mm/fault.c | |
| parent | s390/mm: limit number of real-space gmap shadows (diff) | |
| download | linux-dev-4a49443924731823da2e9b3ae9311b74a34e7ed8.tar.xz linux-dev-4a49443924731823da2e9b3ae9311b74a34e7ed8.zip | |
s390/mm: remember the int code for the last gmap fault
For nested virtualization, we want to know if we are handling a protection
exception, because these can directly be forwarded to the guest without
additional checks.
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/fault.c')
| -rw-r--r-- | arch/s390/mm/fault.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index b84416c11c43..730e0d3aa840 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -419,6 +419,7 @@ static inline int do_exception(struct pt_regs *regs, int access) if (gmap) { current->thread.gmap_addr = address; current->thread.gmap_write_flag = !!(flags & FAULT_FLAG_WRITE); + current->thread.gmap_int_code = regs->int_code & 0xffff; address = __gmap_translate(gmap, address); if (address == -EFAULT) { fault = VM_FAULT_BADMAP; |