diff options
| author | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2024-10-22 14:05:51 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-10-29 11:49:18 +0100 |
| commit | f96cb0d61db6e25cef9d1764acfce3262e507719 (patch) | |
| tree | 602e7ec9e1c502fb74cd59d4d3c474c8b79e30d8 /arch/s390/mm/fault.c | |
| parent | f4d5e64c5c620fd532cc24dc39c6be767e3f8648 (diff) | |
s390/entry: Remove __GMAP_ASCE and use _PIF_GUEST_FAULT again
Now that the guest ASCE is passed as a parameter to __sie64a(),
_PIF_GUEST_FAULT can be used again to determine whether the fault was a
guest or host fault.
Since the guest ASCE will not be taken from the gmap pointer in lowcore
anymore, __GMAP_ASCE can be removed. For the same reason the guest
ASCE needs now to be saved into the cr1 save area unconditionally.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20241022120601.167009-2-imbrenda@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/mm/fault.c')
| -rw-r--r-- | arch/s390/mm/fault.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index ad8b0d6b77ea..a6cf33b0f339 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -68,15 +68,13 @@ early_initcall(fault_init); static enum fault_type get_fault_type(struct pt_regs *regs) { union teid teid = { .val = regs->int_parm_long }; - struct gmap *gmap; if (likely(teid.as == PSW_BITS_AS_PRIMARY)) { if (user_mode(regs)) return USER_FAULT; if (!IS_ENABLED(CONFIG_PGSTE)) return KERNEL_FAULT; - gmap = (struct gmap *)get_lowcore()->gmap; - if (gmap && gmap->asce == regs->cr1) + if (test_pt_regs_flag(regs, PIF_GUEST_FAULT)) return GMAP_FAULT; return KERNEL_FAULT; } @@ -187,7 +185,7 @@ static void dump_fault_info(struct pt_regs *regs) pr_cont("user "); break; case GMAP_FAULT: - asce = ((struct gmap *)get_lowcore()->gmap)->asce; + asce = regs->cr1; pr_cont("gmap "); break; case KERNEL_FAULT: |