From: Janosch Frank <frankja@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: linux-s390@vger.kernel.org, david@redhat.com, thuth@redhat.com,
pmorel@linux.ibm.com, imbrenda@linux.ibm.com
Subject: [kvm-unit-tests PATCH 7/8] s390x: Move diag308_load_reset to stack saving
Date: Tue, 9 Feb 2021 08:49:24 -0500 [thread overview]
Message-ID: <20210209134925.22248-8-frankja@linux.ibm.com> (raw)
In-Reply-To: <20210209134925.22248-1-frankja@linux.ibm.com>
By moving the last user of SAVE/RESTORE_REGS to the macros that use
the stack we can finally remove these macros.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
---
s390x/cpu.S | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/s390x/cpu.S b/s390x/cpu.S
index 5267f029..e2ad56c8 100644
--- a/s390x/cpu.S
+++ b/s390x/cpu.S
@@ -18,7 +18,7 @@
*/
.globl diag308_load_reset
diag308_load_reset:
- SAVE_REGS
+ SAVE_REGS_STACK
/* Backup current PSW mask, as we have to restore it on success */
epsw %r0, %r1
st %r0, GEN_LC_SW_INT_PSW
@@ -31,6 +31,7 @@ diag308_load_reset:
ogr %r0, %r1
/* Store it at the reset PSW location (real 0x0) */
stg %r0, 0
+ stg %r15, GEN_LC_SW_INT_GRS + 15 * 8
/* Do the reset */
diag %r0,%r2,0x308
/* Failure path */
@@ -40,7 +41,8 @@ diag308_load_reset:
/* load a cr0 that has the AFP control bit which enables all FPRs */
0: larl %r1, initial_cr0
lctlg %c0, %c0, 0(%r1)
- RESTORE_REGS
+ lg %r15, GEN_LC_SW_INT_GRS + 15 * 8
+ RESTORE_REGS_STACK
lhi %r2, 1
larl %r0, 1f
stg %r0, GEN_LC_SW_INT_PSW + 8
--
2.25.1
next prev parent reply other threads:[~2021-02-09 13:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 13:49 [kvm-unit-tests PATCH 0/8] s390x: Cleanup exception register save/restore and implement backtrace Janosch Frank
2021-02-09 13:49 ` [kvm-unit-tests PATCH 1/8] s390x: Fix fpc store address in RESTORE_REGS_STACK Janosch Frank
2021-02-09 15:14 ` Thomas Huth
2021-02-09 13:49 ` [kvm-unit-tests PATCH 2/8] s390x: Fully commit to stack save area for exceptions Janosch Frank
2021-02-11 14:47 ` Janosch Frank
2021-02-09 13:49 ` [kvm-unit-tests PATCH 3/8] RFC: s390x: Define STACK_FRAME_INT_SIZE macro Janosch Frank
2021-02-09 13:49 ` [kvm-unit-tests PATCH 4/8] s390x: Introduce and use CALL_INT_HANDLER macro Janosch Frank
2021-02-09 13:49 ` [kvm-unit-tests PATCH 5/8] s390x: Provide preliminary backtrace support Janosch Frank
2021-02-09 13:49 ` [kvm-unit-tests PATCH 6/8] s390x: Print more information on program exceptions Janosch Frank
2021-02-09 13:49 ` Janosch Frank [this message]
2021-02-09 13:49 ` [kvm-unit-tests PATCH 8/8] s390x: Remove SAVE/RESTORE_stack Janosch Frank
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