* [kvm-unit-tests GIT PULL 01/11] s390x: Move to GPL 2 and SPDX license identifiers
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 02/11] s390x: lib: " Janosch Frank
` (10 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
In the past we had some issues when developers wanted to use code
snippets or constants from the kernel in a test or in the library. To
remedy that the s390x maintainers decided to move all files to GPL
2 (if possible).
At the same time let's move to SPDX identifiers as they are much nicer
to read.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Pierre Morel <pmorel@linux.ibm.com>
---
s390x/cmm.c | 4 +---
s390x/cpumodel.c | 4 +---
s390x/css.c | 4 +---
s390x/cstart64.S | 4 +---
s390x/diag10.c | 4 +---
s390x/diag288.c | 4 +---
s390x/diag308.c | 5 +----
s390x/emulator.c | 4 +---
s390x/gs.c | 4 +---
s390x/iep.c | 4 +---
s390x/intercept.c | 4 +---
s390x/pfmf.c | 4 +---
s390x/sclp.c | 4 +---
s390x/selftest.c | 4 +---
s390x/skey.c | 4 +---
s390x/skrf.c | 4 +---
s390x/smp.c | 4 +---
s390x/sthyi.c | 4 +---
s390x/sthyi.h | 4 +---
s390x/stsi.c | 4 +---
s390x/uv-guest.c | 4 +---
s390x/vector.c | 4 +---
22 files changed, 22 insertions(+), 67 deletions(-)
diff --git a/s390x/cmm.c b/s390x/cmm.c
index fe4d9df..c3f0c93 100644
--- a/s390x/cmm.c
+++ b/s390x/cmm.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* CMM tests (ESSA)
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.vnet.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
diff --git a/s390x/cpumodel.c b/s390x/cpumodel.c
index 116a966..4dd8b96 100644
--- a/s390x/cpumodel.c
+++ b/s390x/cpumodel.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Test the known dependencies for facilities
*
@@ -5,9 +6,6 @@
*
* Authors:
* Christian Borntraeger <borntraeger@de.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <asm/facility.h>
diff --git a/s390x/css.c b/s390x/css.c
index ee3bc83..23a7b7c 100644
--- a/s390x/css.c
+++ b/s390x/css.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Channel Subsystem tests
*
@@ -5,9 +6,6 @@
*
* Authors:
* Pierre Morel <pmorel@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#include <libcflat.h>
diff --git a/s390x/cstart64.S b/s390x/cstart64.S
index 4e51150..cc86fc7 100644
--- a/s390x/cstart64.S
+++ b/s390x/cstart64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x startup code
*
@@ -6,9 +7,6 @@
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <asm/asm-offsets.h>
#include <asm/sigp.h>
diff --git a/s390x/diag10.c b/s390x/diag10.c
index 7ee8945..579a7a5 100644
--- a/s390x/diag10.c
+++ b/s390x/diag10.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Release pages hypercall tests (DIAG 10)
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.vnet.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
diff --git a/s390x/diag288.c b/s390x/diag288.c
index e2ecdc8..e132ff0 100644
--- a/s390x/diag288.c
+++ b/s390x/diag288.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Timer Event DIAG288 test
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
diff --git a/s390x/diag308.c b/s390x/diag308.c
index 7fc4abd..c9d6c49 100644
--- a/s390x/diag308.c
+++ b/s390x/diag308.c
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Diagnose 0x308 hypercall tests
*
* Copyright (c) 2019 Thomas Huth, Red Hat Inc.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2, or (at
- * your option) any later version.
*/
#include <libcflat.h>
diff --git a/s390x/emulator.c b/s390x/emulator.c
index 70ef51a..b2787a5 100644
--- a/s390x/emulator.c
+++ b/s390x/emulator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Emulator tests - for s390x CPU instructions that are usually interpreted
* by the hardware
@@ -6,9 +7,6 @@
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <asm/cpacf.h>
diff --git a/s390x/gs.c b/s390x/gs.c
index f685aa9..1376d0e 100644
--- a/s390x/gs.c
+++ b/s390x/gs.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Tests guarded storage support.
*
@@ -6,9 +7,6 @@
* Authors:
* Martin Schwidefsky <schwidefsky@de.ibm.com>
* Janosch Frank <frankja@de.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <asm/page.h>
diff --git a/s390x/iep.c b/s390x/iep.c
index 55c01ee..fe167ef 100644
--- a/s390x/iep.c
+++ b/s390x/iep.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Instruction Execution Prevention (IEP) DAT test.
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@de.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <vmalloc.h>
diff --git a/s390x/intercept.c b/s390x/intercept.c
index 2e38257..cde2f5f 100644
--- a/s390x/intercept.c
+++ b/s390x/intercept.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Interception tests - for s390x CPU instruction that cause a VM exit
*
@@ -5,9 +6,6 @@
*
* Authors:
* Thomas Huth <thuth@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <asm/asm-offsets.h>
diff --git a/s390x/pfmf.c b/s390x/pfmf.c
index ac57fe4..2f3cb11 100644
--- a/s390x/pfmf.c
+++ b/s390x/pfmf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Perform Frame Management Function (pfmf) tests
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.vnet.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <asm/asm-offsets.h>
diff --git a/s390x/sclp.c b/s390x/sclp.c
index 7d92bf3..73d722f 100644
--- a/s390x/sclp.c
+++ b/s390x/sclp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Service Call tests
*
@@ -5,9 +6,6 @@
*
* Authors:
* Claudio Imbrenda <imbrenda@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#include <libcflat.h>
diff --git a/s390x/selftest.c b/s390x/selftest.c
index eaf5b18..b2fe2e7 100644
--- a/s390x/selftest.c
+++ b/s390x/selftest.c
@@ -1,12 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <util.h>
diff --git a/s390x/skey.c b/s390x/skey.c
index 86d15e2..2539944 100644
--- a/s390x/skey.c
+++ b/s390x/skey.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Storage key tests
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.vnet.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <asm/asm-offsets.h>
diff --git a/s390x/skrf.c b/s390x/skrf.c
index b19d0f4..57524ba 100644
--- a/s390x/skrf.c
+++ b/s390x/skrf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Storage key removal facility tests
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#include <libcflat.h>
#include <asm/asm-offsets.h>
diff --git a/s390x/smp.c b/s390x/smp.c
index 4ca1dce..b0ece49 100644
--- a/s390x/smp.c
+++ b/s390x/smp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Tests sigp emulation
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#include <libcflat.h>
#include <asm/asm-offsets.h>
diff --git a/s390x/sthyi.c b/s390x/sthyi.c
index 68c57cb..d8dfc85 100644
--- a/s390x/sthyi.c
+++ b/s390x/sthyi.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Tests exceptions and data validity for the emulated sthyi
* instruction.
@@ -6,9 +7,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.vnet.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <asm/asm-offsets.h>
diff --git a/s390x/sthyi.h b/s390x/sthyi.h
index 06f757f..bbd74c6 100644
--- a/s390x/sthyi.h
+++ b/s390x/sthyi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* STHYI related flags and structure definitions.
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.vnet.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _STHYI_H_
#define _STHYI_H_
diff --git a/s390x/stsi.c b/s390x/stsi.c
index b81cea7..4109b8d 100644
--- a/s390x/stsi.c
+++ b/s390x/stsi.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Store System Information tests
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
diff --git a/s390x/uv-guest.c b/s390x/uv-guest.c
index d47333e..bc947ab 100644
--- a/s390x/uv-guest.c
+++ b/s390x/uv-guest.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Guest Ultravisor Call tests
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#include <libcflat.h>
diff --git a/s390x/vector.c b/s390x/vector.c
index 0159ba1..d1b6a57 100644
--- a/s390x/vector.c
+++ b/s390x/vector.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Tests vector instruction support
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@de.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <asm/page.h>
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 02/11] s390x: lib: Move to GPL 2 and SPDX license identifiers
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 01/11] s390x: Move to GPL 2 and SPDX license identifiers Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 03/11] s390x: Add test_bit to library Janosch Frank
` (9 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
In the past we had some issues when developers wanted to use code
snippets or constants from the kernel in a test or in the library. To
remedy that the s390x maintainers decided to move all files to GPL 2
(if possible).
At the same time let's move to SPDX identifiers as they are much nicer
to read.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Pierre Morel <pmorel@linux.ibm.com>
---
lib/s390x/asm-offsets.c | 4 +---
lib/s390x/asm/arch_def.h | 4 +---
lib/s390x/asm/asm-offsets.h | 4 +---
lib/s390x/asm/barrier.h | 4 +---
lib/s390x/asm/cpacf.h | 1 +
lib/s390x/asm/facility.h | 4 +---
lib/s390x/asm/float.h | 4 +---
lib/s390x/asm/interrupt.h | 4 +---
lib/s390x/asm/io.h | 4 +---
lib/s390x/asm/mem.h | 4 +---
lib/s390x/asm/page.h | 4 +---
lib/s390x/asm/pgtable.h | 4 +---
lib/s390x/asm/sigp.h | 4 +---
lib/s390x/asm/spinlock.h | 4 +---
lib/s390x/asm/stack.h | 4 +---
lib/s390x/asm/time.h | 4 +---
lib/s390x/css.h | 4 +---
lib/s390x/css_dump.c | 4 +---
lib/s390x/css_lib.c | 4 +---
lib/s390x/interrupt.c | 4 +---
lib/s390x/io.c | 4 +---
lib/s390x/mmu.c | 4 +---
lib/s390x/mmu.h | 4 +---
lib/s390x/sclp-console.c | 5 +----
lib/s390x/sclp.c | 4 +---
lib/s390x/sclp.h | 5 +----
lib/s390x/smp.c | 4 +---
lib/s390x/smp.h | 4 +---
lib/s390x/stack.c | 4 +---
lib/s390x/vm.c | 3 +--
lib/s390x/vm.h | 3 +--
31 files changed, 31 insertions(+), 90 deletions(-)
diff --git a/lib/s390x/asm-offsets.c b/lib/s390x/asm-offsets.c
index 61d2658..ee94ed3 100644
--- a/lib/s390x/asm-offsets.c
+++ b/lib/s390x/asm-offsets.c
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <kbuild.h>
diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h
index edc06ef..f3ab830 100644
--- a/lib/s390x/asm/arch_def.h
+++ b/lib/s390x/asm/arch_def.h
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASM_S390X_ARCH_DEF_H_
#define _ASM_S390X_ARCH_DEF_H_
diff --git a/lib/s390x/asm/asm-offsets.h b/lib/s390x/asm/asm-offsets.h
index a6d7af8..bed7f8e 100644
--- a/lib/s390x/asm/asm-offsets.h
+++ b/lib/s390x/asm/asm-offsets.h
@@ -1,10 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <generated/asm-offsets.h>
diff --git a/lib/s390x/asm/barrier.h b/lib/s390x/asm/barrier.h
index d862e78..8e2fd6d 100644
--- a/lib/s390x/asm/barrier.h
+++ b/lib/s390x/asm/barrier.h
@@ -1,12 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASM_S390X_BARRIER_H_
#define _ASM_S390X_BARRIER_H_
diff --git a/lib/s390x/asm/cpacf.h b/lib/s390x/asm/cpacf.h
index 2146a01..805fcf1 100644
--- a/lib/s390x/asm/cpacf.h
+++ b/lib/s390x/asm/cpacf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* CP Assist for Cryptographic Functions (CPACF)
*
diff --git a/lib/s390x/asm/facility.h b/lib/s390x/asm/facility.h
index def2705..7828cf8 100644
--- a/lib/s390x/asm/facility.h
+++ b/lib/s390x/asm/facility.h
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASM_S390X_FACILITY_H_
#define _ASM_S390X_FACILITY_H_
diff --git a/lib/s390x/asm/float.h b/lib/s390x/asm/float.h
index f61fa62..1367944 100644
--- a/lib/s390x/asm/float.h
+++ b/lib/s390x/asm/float.h
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2018 Red Hat Inc
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASM_S390X_FLOAT_H_
#define _ASM_S390X_FLOAT_H_
diff --git a/lib/s390x/asm/interrupt.h b/lib/s390x/asm/interrupt.h
index 2772e6b..1a2e2cd 100644
--- a/lib/s390x/asm/interrupt.h
+++ b/lib/s390x/asm/interrupt.h
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASMS390X_IRQ_H_
#define _ASMS390X_IRQ_H_
diff --git a/lib/s390x/asm/io.h b/lib/s390x/asm/io.h
index 094dace..1dc6283 100644
--- a/lib/s390x/asm/io.h
+++ b/lib/s390x/asm/io.h
@@ -1,12 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASMS390X_IO_H_
#define _ASMS390X_IO_H_
diff --git a/lib/s390x/asm/mem.h b/lib/s390x/asm/mem.h
index c78bfa2..281390e 100644
--- a/lib/s390x/asm/mem.h
+++ b/lib/s390x/asm/mem.h
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Physical memory management related functions and definitions.
*
* Copyright IBM Corp. 2018
* Author(s): Janosch Frank <frankja@de.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASM_S390_MEM_H
#define _ASM_S390_MEM_H
diff --git a/lib/s390x/asm/page.h b/lib/s390x/asm/page.h
index bc19154..f130f93 100644
--- a/lib/s390x/asm/page.h
+++ b/lib/s390x/asm/page.h
@@ -1,12 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASMS390X_PAGE_H_
#define _ASMS390X_PAGE_H_
diff --git a/lib/s390x/asm/pgtable.h b/lib/s390x/asm/pgtable.h
index e15bee9..277f348 100644
--- a/lib/s390x/asm/pgtable.h
+++ b/lib/s390x/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x page table definitions and functions
*
@@ -5,9 +6,6 @@
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASMS390X_PGTABLE_H_
#define _ASMS390X_PGTABLE_H_
diff --git a/lib/s390x/asm/sigp.h b/lib/s390x/asm/sigp.h
index 2d52313..00844d2 100644
--- a/lib/s390x/asm/sigp.h
+++ b/lib/s390x/asm/sigp.h
@@ -1,10 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* SIGP related definitions.
*
* Copied from the Linux kernel file arch/s390/include/asm/sigp.h
- *
- * This work is licensed under the terms of the GNU GPL, version
- * 2.
*/
#ifndef ASM_S390X_SIGP_H
diff --git a/lib/s390x/asm/spinlock.h b/lib/s390x/asm/spinlock.h
index f7d3982..677d2cd 100644
--- a/lib/s390x/asm/spinlock.h
+++ b/lib/s390x/asm/spinlock.h
@@ -1,12 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef __ASMS390X_SPINLOCK_H
#define __ASMS390X_SPINLOCK_H
diff --git a/lib/s390x/asm/stack.h b/lib/s390x/asm/stack.h
index e36d975..909da36 100644
--- a/lib/s390x/asm/stack.h
+++ b/lib/s390x/asm/stack.h
@@ -1,12 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017 Red Hat Inc
*
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASMS390X_STACK_H_
#define _ASMS390X_STACK_H_
diff --git a/lib/s390x/asm/time.h b/lib/s390x/asm/time.h
index 7375aa2..0d67f72 100644
--- a/lib/s390x/asm/time.h
+++ b/lib/s390x/asm/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Clock utilities for s390
*
@@ -6,9 +7,6 @@
*
* Copied from the s390/intercept test by:
* Pierre Morel <pmorel@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#ifndef ASM_S390X_TIME_H
#define ASM_S390X_TIME_H
diff --git a/lib/s390x/css.h b/lib/s390x/css.h
index 221b67c..d10d265 100644
--- a/lib/s390x/css.h
+++ b/lib/s390x/css.h
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* CSS definitions
*
* Copyright IBM, Corp. 2020
* Author: Pierre Morel <pmorel@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#ifndef CSS_H
diff --git a/lib/s390x/css_dump.c b/lib/s390x/css_dump.c
index 1266f04..2268086 100644
--- a/lib/s390x/css_dump.c
+++ b/lib/s390x/css_dump.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Channel subsystem structures dumping
*
@@ -6,9 +7,6 @@
* Authors:
* Pierre Morel <pmorel@linux.ibm.com>
*
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
- *
* Description:
* Provides the dumping functions for various structures used by subchannels:
* - ORB : Operation request block, describes the I/O operation and points to
diff --git a/lib/s390x/css_lib.c b/lib/s390x/css_lib.c
index 8e02371..5af6f77 100644
--- a/lib/s390x/css_lib.c
+++ b/lib/s390x/css_lib.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Channel Subsystem tests library
*
@@ -5,9 +6,6 @@
*
* Authors:
* Pierre Morel <pmorel@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#include <libcflat.h>
#include <alloc_phys.h>
diff --git a/lib/s390x/interrupt.c b/lib/s390x/interrupt.c
index a074505..bac8862 100644
--- a/lib/s390x/interrupt.c
+++ b/lib/s390x/interrupt.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x interrupt handling
*
@@ -5,9 +6,6 @@
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <asm/barrier.h>
diff --git a/lib/s390x/io.c b/lib/s390x/io.c
index c0f0bf7..1ff0589 100644
--- a/lib/s390x/io.c
+++ b/lib/s390x/io.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x io implementation
*
@@ -6,9 +7,6 @@
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <argv.h>
diff --git a/lib/s390x/mmu.c b/lib/s390x/mmu.c
index 912236c..5c51736 100644
--- a/lib/s390x/mmu.c
+++ b/lib/s390x/mmu.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x MMU
*
@@ -5,9 +6,6 @@
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
diff --git a/lib/s390x/mmu.h b/lib/s390x/mmu.h
index f5095fa..603f289 100644
--- a/lib/s390x/mmu.h
+++ b/lib/s390x/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x mmu functions
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@de.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#ifndef _ASMS390X_MMU_H_
#define _ASMS390X_MMU_H_
diff --git a/lib/s390x/sclp-console.c b/lib/s390x/sclp-console.c
index 6067a1a..fa36a6a 100644
--- a/lib/s390x/sclp-console.c
+++ b/lib/s390x/sclp-console.c
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* SCLP ASCII access driver
*
* Copyright (c) 2013 Alexander Graf <agraf@suse.de>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or (at
- * your option) any later version. See the COPYING file in the top-level
- * directory.
*/
#include <libcflat.h>
diff --git a/lib/s390x/sclp.c b/lib/s390x/sclp.c
index 4e2ac18..08a4813 100644
--- a/lib/s390x/sclp.c
+++ b/lib/s390x/sclp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x SCLP driver
*
@@ -5,9 +6,6 @@
*
* Authors:
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
diff --git a/lib/s390x/sclp.h b/lib/s390x/sclp.h
index 675f07e..a8f58f5 100644
--- a/lib/s390x/sclp.h
+++ b/lib/s390x/sclp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* SCLP definitions
*
@@ -7,10 +8,6 @@
* and based on the file include/hw/s390x/sclp.h from QEMU
* Copyright IBM, Corp. 2012
* Author: Christian Borntraeger <borntraeger@de.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or (at
- * your option) any later version. See the COPYING file in the top-level
- * directory.
*/
#ifndef SCLP_H
diff --git a/lib/s390x/smp.c b/lib/s390x/smp.c
index 44b2eb4..423970b 100644
--- a/lib/s390x/smp.c
+++ b/lib/s390x/smp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x smp
* Based on Linux's arch/s390/kernel/smp.c and
@@ -7,9 +8,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#include <libcflat.h>
#include <asm/arch_def.h>
diff --git a/lib/s390x/smp.h b/lib/s390x/smp.h
index d66e39a..67ff16c 100644
--- a/lib/s390x/smp.h
+++ b/lib/s390x/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x smp
*
@@ -5,9 +6,6 @@
*
* Authors:
* Janosch Frank <frankja@linux.ibm.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2.
*/
#ifndef SMP_H
#define SMP_H
diff --git a/lib/s390x/stack.c b/lib/s390x/stack.c
index cd34b20..0fcd1af 100644
--- a/lib/s390x/stack.c
+++ b/lib/s390x/stack.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* s390x stack implementation
*
@@ -6,9 +7,6 @@
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Library General Public License version 2.
*/
#include <libcflat.h>
#include <stack.h>
diff --git a/lib/s390x/vm.c b/lib/s390x/vm.c
index c852713..a5b9286 100644
--- a/lib/s390x/vm.c
+++ b/lib/s390x/vm.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Functions to retrieve VM-specific information
*
@@ -5,8 +6,6 @@
*
* Authors:
* Thomas Huth <thuth@redhat.com>
- *
- * SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include <libcflat.h>
diff --git a/lib/s390x/vm.h b/lib/s390x/vm.h
index 33008d8..1672276 100644
--- a/lib/s390x/vm.h
+++ b/lib/s390x/vm.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Functions to retrieve VM-specific information
*
* Copyright (c) 2020 Red Hat Inc
- *
- * SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef S390X_VM_H
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 03/11] s390x: Add test_bit to library
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 01/11] s390x: Move to GPL 2 and SPDX license identifiers Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 02/11] s390x: lib: " Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 04/11] s390x: Consolidate sclp read info Janosch Frank
` (8 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
Query/feature bits are commonly tested via MSB bit numbers on
s390. Let's add test bit functions, so we don't need to copy code to
test query bits.
The test_bit code has been taken from the kernel since most s390x KVM unit
test developers are used to them.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
lib/s390x/asm/bitops.h | 26 ++++++++++++++++++++++++++
lib/s390x/asm/facility.h | 3 ++-
s390x/uv-guest.c | 6 +++---
3 files changed, 31 insertions(+), 4 deletions(-)
diff --git a/lib/s390x/asm/bitops.h b/lib/s390x/asm/bitops.h
index e7cdda9..792881e 100644
--- a/lib/s390x/asm/bitops.h
+++ b/lib/s390x/asm/bitops.h
@@ -1,3 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Bitops taken from the kernel as most developers are already used
+ * to them.
+ *
+ * Copyright IBM Corp. 1999,2013
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *
+ */
#ifndef _ASMS390X_BITOPS_H_
#define _ASMS390X_BITOPS_H_
@@ -7,4 +17,20 @@
#define BITS_PER_LONG 64
+static inline bool test_bit(unsigned long nr,
+ const volatile unsigned long *ptr)
+{
+ const volatile unsigned char *addr;
+
+ addr = ((const volatile unsigned char *)ptr);
+ addr += (nr ^ (BITS_PER_LONG - 8)) >> 3;
+ return (*addr >> (nr & 7)) & 1;
+}
+
+static inline bool test_bit_inv(unsigned long nr,
+ const volatile unsigned long *ptr)
+{
+ return test_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
+
#endif
diff --git a/lib/s390x/asm/facility.h b/lib/s390x/asm/facility.h
index 7828cf8..95d4a15 100644
--- a/lib/s390x/asm/facility.h
+++ b/lib/s390x/asm/facility.h
@@ -11,13 +11,14 @@
#include <libcflat.h>
#include <asm/facility.h>
#include <asm/arch_def.h>
+#include <bitops.h>
#define NB_STFL_DOUBLEWORDS 32
extern uint64_t stfl_doublewords[];
static inline bool test_facility(int nr)
{
- return stfl_doublewords[nr / 64] & (0x8000000000000000UL >> (nr % 64));
+ return test_bit_inv(nr, stfl_doublewords);
}
static inline void stfl(void)
diff --git a/s390x/uv-guest.c b/s390x/uv-guest.c
index bc947ab..e51b85e 100644
--- a/s390x/uv-guest.c
+++ b/s390x/uv-guest.c
@@ -75,11 +75,11 @@ static void test_query(void)
* Ultravisor version and are expected to always be available
* because they are basic building blocks.
*/
- report(uvcb.inst_calls_list[0] & (1UL << (63 - BIT_UVC_CMD_QUI)),
+ report(test_bit_inv(BIT_UVC_CMD_QUI, &uvcb.inst_calls_list[0]),
"query indicated");
- report(uvcb.inst_calls_list[0] & (1UL << (63 - BIT_UVC_CMD_SET_SHARED_ACCESS)),
+ report(test_bit_inv(BIT_UVC_CMD_SET_SHARED_ACCESS, &uvcb.inst_calls_list[0]),
"share indicated");
- report(uvcb.inst_calls_list[0] & (1UL << (63 - BIT_UVC_CMD_REMOVE_SHARED_ACCESS)),
+ report(test_bit_inv(BIT_UVC_CMD_REMOVE_SHARED_ACCESS, &uvcb.inst_calls_list[0]),
"unshare indicated");
report_prefix_pop();
}
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 04/11] s390x: Consolidate sclp read info
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (2 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 03/11] s390x: Add test_bit to library Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 05/11] s390x: SCLP feature checking Janosch Frank
` (7 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
Let's only read the information once and pass a pointer to it instead
of calling sclp multiple times.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
lib/s390x/io.c | 1 +
lib/s390x/sclp.c | 31 +++++++++++++++++++++++++------
lib/s390x/sclp.h | 3 +++
lib/s390x/smp.c | 27 +++++++++++----------------
4 files changed, 40 insertions(+), 22 deletions(-)
diff --git a/lib/s390x/io.c b/lib/s390x/io.c
index 1ff0589..6a1da63 100644
--- a/lib/s390x/io.c
+++ b/lib/s390x/io.c
@@ -34,6 +34,7 @@ void setup(void)
{
setup_args_progname(ipl_args);
setup_facilities();
+ sclp_read_info();
sclp_console_setup();
sclp_memory_setup();
smp_setup();
diff --git a/lib/s390x/sclp.c b/lib/s390x/sclp.c
index 08a4813..12916f5 100644
--- a/lib/s390x/sclp.c
+++ b/lib/s390x/sclp.c
@@ -23,6 +23,8 @@ extern unsigned long stacktop;
static uint64_t storage_increment_size;
static uint64_t max_ram_size;
static uint64_t ram_size;
+char _read_info[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
+static ReadInfo *read_info;
char _sccb[PAGE_SIZE] __attribute__((__aligned__(4096)));
static volatile bool sclp_busy;
@@ -108,6 +110,24 @@ static void sclp_read_scp_info(ReadInfo *ri, int length)
report_abort("READ_SCP_INFO failed");
}
+void sclp_read_info(void)
+{
+ sclp_read_scp_info((void *)_read_info, SCCB_SIZE);
+ read_info = (ReadInfo *)_read_info;
+}
+
+int sclp_get_cpu_num(void)
+{
+ assert(read_info);
+ return read_info->entries_cpu;
+}
+
+CPUEntry *sclp_get_cpu_entries(void)
+{
+ assert(read_info);
+ return (CPUEntry *)(_read_info + read_info->offset_cpu);
+}
+
/* Perform service call. Return 0 on success, non-zero otherwise. */
int sclp_service_call(unsigned int command, void *sccb)
{
@@ -125,23 +145,22 @@ int sclp_service_call(unsigned int command, void *sccb)
void sclp_memory_setup(void)
{
- ReadInfo *ri = (void *)_sccb;
uint64_t rnmax, rnsize;
int cc;
- sclp_read_scp_info(ri, SCCB_SIZE);
+ assert(read_info);
/* calculate the storage increment size */
- rnsize = ri->rnsize;
+ rnsize = read_info->rnsize;
if (!rnsize) {
- rnsize = ri->rnsize2;
+ rnsize = read_info->rnsize2;
}
storage_increment_size = rnsize << 20;
/* calculate the maximum memory size */
- rnmax = ri->rnmax;
+ rnmax = read_info->rnmax;
if (!rnmax) {
- rnmax = ri->rnmax2;
+ rnmax = read_info->rnmax2;
}
max_ram_size = rnmax * storage_increment_size;
diff --git a/lib/s390x/sclp.h b/lib/s390x/sclp.h
index a8f58f5..f005bd0 100644
--- a/lib/s390x/sclp.h
+++ b/lib/s390x/sclp.h
@@ -268,6 +268,9 @@ void sclp_wait_busy(void);
void sclp_mark_busy(void);
void sclp_console_setup(void);
void sclp_print(const char *str);
+void sclp_read_info(void);
+int sclp_get_cpu_num(void);
+CPUEntry *sclp_get_cpu_entries(void);
int sclp_service_call(unsigned int command, void *sccb);
void sclp_memory_setup(void);
uint64_t get_ram_size(void);
diff --git a/lib/s390x/smp.c b/lib/s390x/smp.c
index 423970b..ee68d67 100644
--- a/lib/s390x/smp.c
+++ b/lib/s390x/smp.c
@@ -23,7 +23,6 @@
#include "smp.h"
#include "sclp.h"
-static char cpu_info_buffer[PAGE_SIZE] __attribute__((__aligned__(4096)));
static struct cpu *cpus;
static struct cpu *cpu0;
static struct spinlock lock;
@@ -32,8 +31,7 @@ extern void smp_cpu_setup_state(void);
int smp_query_num_cpus(void)
{
- struct ReadCpuInfo *info = (void *)cpu_info_buffer;
- return info->nr_configured;
+ return sclp_get_cpu_num();
}
struct cpu *smp_cpu_from_addr(uint16_t addr)
@@ -226,10 +224,10 @@ void smp_teardown(void)
{
int i = 0;
uint16_t this_cpu = stap();
- struct ReadCpuInfo *info = (void *)cpu_info_buffer;
+ int num = smp_query_num_cpus();
spin_lock(&lock);
- for (; i < info->nr_configured; i++) {
+ for (; i < num; i++) {
if (cpus[i].active &&
cpus[i].addr != this_cpu) {
sigp_retry(cpus[i].addr, SIGP_STOP, 0, NULL);
@@ -243,22 +241,19 @@ extern uint64_t *stackptr;
void smp_setup(void)
{
int i = 0;
+ int num = smp_query_num_cpus();
unsigned short cpu0_addr = stap();
- struct ReadCpuInfo *info = (void *)cpu_info_buffer;
+ struct CPUEntry *entry = sclp_get_cpu_entries();
spin_lock(&lock);
- sclp_mark_busy();
- info->h.length = PAGE_SIZE;
- sclp_service_call(SCLP_READ_CPU_INFO, cpu_info_buffer);
+ if (num > 1)
+ printf("SMP: Initializing, found %d cpus\n", num);
- if (smp_query_num_cpus() > 1)
- printf("SMP: Initializing, found %d cpus\n", info->nr_configured);
-
- cpus = calloc(info->nr_configured, sizeof(cpus));
- for (i = 0; i < info->nr_configured; i++) {
- cpus[i].addr = info->entries[i].address;
+ cpus = calloc(num, sizeof(cpus));
+ for (i = 0; i < num; i++) {
+ cpus[i].addr = entry[i].address;
cpus[i].active = false;
- if (info->entries[i].address == cpu0_addr) {
+ if (entry[i].address == cpu0_addr) {
cpu0 = &cpus[i];
cpu0->stack = stackptr;
cpu0->lowcore = (void *)0;
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 05/11] s390x: SCLP feature checking
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (3 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 04/11] s390x: Consolidate sclp read info Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 06/11] s390x: Split assembly into multiple files Janosch Frank
` (6 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
Availability of SIE is announced via a feature bit in a SCLP info CPU
entry. Let's add a framework that allows us to easily check for such
facilities.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
lib/s390x/io.c | 1 +
lib/s390x/sclp.c | 25 +++++++++++++++++++++++++
lib/s390x/sclp.h | 13 ++++++++++++-
3 files changed, 38 insertions(+), 1 deletion(-)
diff --git a/lib/s390x/io.c b/lib/s390x/io.c
index 6a1da63..ef9f59e 100644
--- a/lib/s390x/io.c
+++ b/lib/s390x/io.c
@@ -35,6 +35,7 @@ void setup(void)
setup_args_progname(ipl_args);
setup_facilities();
sclp_read_info();
+ sclp_facilities_setup();
sclp_console_setup();
sclp_memory_setup();
smp_setup();
diff --git a/lib/s390x/sclp.c b/lib/s390x/sclp.c
index 12916f5..06819a6 100644
--- a/lib/s390x/sclp.c
+++ b/lib/s390x/sclp.c
@@ -25,6 +25,7 @@ static uint64_t max_ram_size;
static uint64_t ram_size;
char _read_info[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
static ReadInfo *read_info;
+struct sclp_facilities sclp_facilities;
char _sccb[PAGE_SIZE] __attribute__((__aligned__(4096)));
static volatile bool sclp_busy;
@@ -128,6 +129,30 @@ CPUEntry *sclp_get_cpu_entries(void)
return (CPUEntry *)(_read_info + read_info->offset_cpu);
}
+void sclp_facilities_setup(void)
+{
+ unsigned short cpu0_addr = stap();
+ CPUEntry *cpu;
+ int i;
+
+ assert(read_info);
+
+ cpu = sclp_get_cpu_entries();
+ for (i = 0; i < read_info->entries_cpu; i++, cpu++) {
+ /*
+ * The logic for only reading the facilities from the
+ * boot cpu comes from the kernel. I haven't yet found
+ * documentation that explains why this is necessary
+ * but I figure there's a reason behind doing it this
+ * way.
+ */
+ if (cpu->address == cpu0_addr) {
+ sclp_facilities.has_sief2 = cpu->feat_sief2;
+ break;
+ }
+ }
+}
+
/* Perform service call. Return 0 on success, non-zero otherwise. */
int sclp_service_call(unsigned int command, void *sccb)
{
diff --git a/lib/s390x/sclp.h b/lib/s390x/sclp.h
index f005bd0..c3128b9 100644
--- a/lib/s390x/sclp.h
+++ b/lib/s390x/sclp.h
@@ -92,12 +92,22 @@ typedef struct SCCBHeader {
typedef struct CPUEntry {
uint8_t address;
uint8_t reserved0;
- uint8_t features[SCCB_CPU_FEATURE_LEN];
+ uint8_t : 4;
+ uint8_t feat_sief2 : 1;
+ uint8_t : 3;
+ uint8_t features_res2 [SCCB_CPU_FEATURE_LEN - 1];
uint8_t reserved2[6];
uint8_t type;
uint8_t reserved1;
} __attribute__((packed)) CPUEntry;
+extern struct sclp_facilities sclp_facilities;
+
+struct sclp_facilities {
+ uint64_t has_sief2 : 1;
+ uint64_t : 63;
+};
+
typedef struct ReadInfo {
SCCBHeader h;
uint16_t rnmax;
@@ -271,6 +281,7 @@ void sclp_print(const char *str);
void sclp_read_info(void);
int sclp_get_cpu_num(void);
CPUEntry *sclp_get_cpu_entries(void);
+void sclp_facilities_setup(void);
int sclp_service_call(unsigned int command, void *sccb);
void sclp_memory_setup(void);
uint64_t get_ram_size(void);
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 06/11] s390x: Split assembly into multiple files
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (4 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 05/11] s390x: SCLP feature checking Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 07/11] s390x: sie: Add SIE to lib Janosch Frank
` (5 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
I've added too much to cstart64.S which is not start related
already. Now that I want to add even more code it's time to split
cstart64.S. lib.S has functions that are used in tests. macros.S
contains macros which are used in cstart64.S and lib.S
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
---
s390x/Makefile | 6 +--
s390x/cpu.S | 65 ++++++++++++++++++++++++++
s390x/cstart64.S | 119 ++---------------------------------------------
s390x/macros.S | 77 ++++++++++++++++++++++++++++++
4 files changed, 149 insertions(+), 118 deletions(-)
create mode 100644 s390x/cpu.S
create mode 100644 s390x/macros.S
diff --git a/s390x/Makefile b/s390x/Makefile
index b079a26..5f235f1 100644
--- a/s390x/Makefile
+++ b/s390x/Makefile
@@ -66,10 +66,10 @@ cflatobjs += lib/s390x/css_lib.o
OBJDIRS += lib/s390x
-cstart.o = $(TEST_DIR)/cstart64.o
+asmlib = $(TEST_DIR)/cstart64.o $(TEST_DIR)/cpu.o
FLATLIBS = $(libcflat)
-%.elf: %.o $(FLATLIBS) $(SRCDIR)/s390x/flat.lds $(cstart.o)
+%.elf: %.o $(FLATLIBS) $(SRCDIR)/s390x/flat.lds $(asmlib)
$(CC) $(CFLAGS) -c -o $(@:.elf=.aux.o) \
$(SRCDIR)/lib/auxinfo.c -DPROGNAME=\"$@\"
$(CC) $(LDFLAGS) -o $@ -T $(SRCDIR)/s390x/flat.lds \
@@ -90,4 +90,4 @@ arch_clean: asm_offsets_clean
$(RM) $(TEST_DIR)/*.{o,elf,bin} $(TEST_DIR)/.*.d lib/s390x/.*.d
generated-files = $(asm-offsets)
-$(tests:.elf=.o) $(cstart.o) $(cflatobjs): $(generated-files)
+$(tests:.elf=.o) $(asmlib) $(cflatobjs): $(generated-files)
diff --git a/s390x/cpu.S b/s390x/cpu.S
new file mode 100644
index 0000000..4d78ec6
--- /dev/null
+++ b/s390x/cpu.S
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * s390x assembly library
+ *
+ * Copyright (c) 2019 IBM Corp.
+ *
+ * Authors:
+ * Janosch Frank <frankja@linux.ibm.com>
+ */
+#include <asm/asm-offsets.h>
+#include <asm/sigp.h>
+
+#include "macros.S"
+
+/*
+ * load_reset calling convention:
+ * %r2 subcode (0 or 1)
+ */
+.globl diag308_load_reset
+diag308_load_reset:
+ SAVE_REGS
+ /* Backup current PSW mask, as we have to restore it on success */
+ epsw %r0, %r1
+ st %r0, GEN_LC_SW_INT_PSW
+ st %r1, GEN_LC_SW_INT_PSW + 4
+ /* Load reset psw mask (short psw, 64 bit) */
+ lg %r0, reset_psw
+ /* Load the success label address */
+ larl %r1, 0f
+ /* Or it to the mask */
+ ogr %r0, %r1
+ /* Store it at the reset PSW location (real 0x0) */
+ stg %r0, 0
+ /* Do the reset */
+ diag %r0,%r2,0x308
+ /* Failure path */
+ xgr %r2, %r2
+ br %r14
+ /* Success path */
+ /* 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
+ lhi %r2, 1
+ larl %r0, 1f
+ stg %r0, GEN_LC_SW_INT_PSW + 8
+ lpswe GEN_LC_SW_INT_PSW
+1: br %r14
+
+/* Sets up general registers and cr0 when a new cpu is brought online. */
+.globl smp_cpu_setup_state
+smp_cpu_setup_state:
+ xgr %r1, %r1
+ lmg %r0, %r15, GEN_LC_SW_INT_GRS
+ lctlg %c0, %c0, GEN_LC_SW_INT_CRS
+ /* We should only go once through cpu setup and not for every restart */
+ stg %r14, GEN_LC_RESTART_NEW_PSW + 8
+ larl %r14, 0f
+ lpswe GEN_LC_SW_INT_PSW
+ /* If the function returns, just loop here */
+0: j 0
+
+ .align 8
+reset_psw:
+ .quad 0x0008000180000000
diff --git a/s390x/cstart64.S b/s390x/cstart64.S
index cc86fc7..ace0c0d 100644
--- a/s390x/cstart64.S
+++ b/s390x/cstart64.S
@@ -3,14 +3,17 @@
* s390x startup code
*
* Copyright (c) 2017 Red Hat Inc
+ * Copyright (c) 2019 IBM Corp.
*
* Authors:
* Thomas Huth <thuth@redhat.com>
* David Hildenbrand <david@redhat.com>
+ * Janosch Frank <frankja@linux.ibm.com>
*/
#include <asm/asm-offsets.h>
#include <asm/sigp.h>
+#include "macros.S"
.section .init
/*
@@ -87,120 +90,7 @@ clear_bss_remainder:
memsetxc:
xc 0(1,%r1),0(%r1)
- .macro SAVE_REGS
- /* save grs 0-15 */
- stmg %r0, %r15, GEN_LC_SW_INT_GRS
- /* save crs 0-15 */
- stctg %c0, %c15, GEN_LC_SW_INT_CRS
- /* load a cr0 that has the AFP control bit which enables all FPRs */
- larl %r1, initial_cr0
- lctlg %c0, %c0, 0(%r1)
- /* save fprs 0-15 + fpc */
- la %r1, GEN_LC_SW_INT_FPRS
- .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- std \i, \i * 8(%r1)
- .endr
- stfpc GEN_LC_SW_INT_FPC
- .endm
-
- .macro RESTORE_REGS
- /* restore fprs 0-15 + fpc */
- la %r1, GEN_LC_SW_INT_FPRS
- .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- ld \i, \i * 8(%r1)
- .endr
- lfpc GEN_LC_SW_INT_FPC
- /* restore crs 0-15 */
- lctlg %c0, %c15, GEN_LC_SW_INT_CRS
- /* restore grs 0-15 */
- lmg %r0, %r15, GEN_LC_SW_INT_GRS
- .endm
-
-/* Save registers on the stack (r15), so we can have stacked interrupts. */
- .macro SAVE_REGS_STACK
- /* Allocate a stack frame for 15 general registers */
- slgfi %r15, 15 * 8
- /* Store registers r0 to r14 on the stack */
- stmg %r0, %r14, 0(%r15)
- /* Allocate a stack frame for 16 floating point registers */
- /* The size of a FP register is the size of an double word */
- slgfi %r15, 16 * 8
- /* Save fp register on stack: offset to SP is multiple of reg number */
- .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- std \i, \i * 8(%r15)
- .endr
- /* Save fpc, but keep stack aligned on 64bits */
- slgfi %r15, 8
- efpc %r0
- stg %r0, 0(%r15)
- .endm
-
-/* Restore the register in reverse order */
- .macro RESTORE_REGS_STACK
- /* Restore fpc */
- lfpc 0(%r15)
- algfi %r15, 8
- /* Restore fp register from stack: SP still where it was left */
- /* and offset to SP is a multiple of reg number */
- .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- ld \i, \i * 8(%r15)
- .endr
- /* Now that we're done, rewind the stack pointer by 16 double word */
- algfi %r15, 16 * 8
- /* Load the registers from stack */
- lmg %r0, %r14, 0(%r15)
- /* Rewind the stack by 15 double word */
- algfi %r15, 15 * 8
- .endm
-
.section .text
-/*
- * load_reset calling convention:
- * %r2 subcode (0 or 1)
- */
-.globl diag308_load_reset
-diag308_load_reset:
- SAVE_REGS
- /* Backup current PSW mask, as we have to restore it on success */
- epsw %r0, %r1
- st %r0, GEN_LC_SW_INT_PSW
- st %r1, GEN_LC_SW_INT_PSW + 4
- /* Load reset psw mask (short psw, 64 bit) */
- lg %r0, reset_psw
- /* Load the success label address */
- larl %r1, 0f
- /* Or it to the mask */
- ogr %r0, %r1
- /* Store it at the reset PSW location (real 0x0) */
- stg %r0, 0
- /* Do the reset */
- diag %r0,%r2,0x308
- /* Failure path */
- xgr %r2, %r2
- br %r14
- /* Success path */
- /* 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
- lhi %r2, 1
- larl %r0, 1f
- stg %r0, GEN_LC_SW_INT_PSW + 8
- lpswe GEN_LC_SW_INT_PSW
-1: br %r14
-
-.globl smp_cpu_setup_state
-smp_cpu_setup_state:
- xgr %r1, %r1
- lmg %r0, %r15, GEN_LC_SW_INT_GRS
- lctlg %c0, %c0, GEN_LC_SW_INT_CRS
- /* We should only go once through cpu setup and not for every restart */
- stg %r14, GEN_LC_RESTART_NEW_PSW + 8
- larl %r14, 0f
- lpswe GEN_LC_SW_INT_PSW
- /* If the function returns, just loop here */
-0: j 0
-
pgm_int:
SAVE_REGS
brasl %r14, handle_pgm_int
@@ -232,8 +122,6 @@ svc_int:
lpswe GEN_LC_SVC_OLD_PSW
.align 8
-reset_psw:
- .quad 0x0008000180000000
initial_psw:
.quad 0x0000000180000000, clear_bss_start
pgm_int_psw:
@@ -246,6 +134,7 @@ io_int_psw:
.quad 0x0000000180000000, io_int
svc_int_psw:
.quad 0x0000000180000000, svc_int
+.globl initial_cr0
initial_cr0:
/* enable AFP-register control, so FP regs (+BFP instr) can be used */
.quad 0x0000000000040000
diff --git a/s390x/macros.S b/s390x/macros.S
new file mode 100644
index 0000000..37a6a63
--- /dev/null
+++ b/s390x/macros.S
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * s390x assembly macros
+ *
+ * Copyright (c) 2017 Red Hat Inc
+ * Copyright (c) 2020 IBM Corp.
+ *
+ * Authors:
+ * Pierre Morel <pmorel@linux.ibm.com>
+ * David Hildenbrand <david@redhat.com>
+ */
+#include <asm/asm-offsets.h>
+ .macro SAVE_REGS
+ /* save grs 0-15 */
+ stmg %r0, %r15, GEN_LC_SW_INT_GRS
+ /* save crs 0-15 */
+ stctg %c0, %c15, GEN_LC_SW_INT_CRS
+ /* load a cr0 that has the AFP control bit which enables all FPRs */
+ larl %r1, initial_cr0
+ lctlg %c0, %c0, 0(%r1)
+ /* save fprs 0-15 + fpc */
+ la %r1, GEN_LC_SW_INT_FPRS
+ .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+ std \i, \i * 8(%r1)
+ .endr
+ stfpc GEN_LC_SW_INT_FPC
+ .endm
+
+ .macro RESTORE_REGS
+ /* restore fprs 0-15 + fpc */
+ la %r1, GEN_LC_SW_INT_FPRS
+ .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+ ld \i, \i * 8(%r1)
+ .endr
+ lfpc GEN_LC_SW_INT_FPC
+ /* restore crs 0-15 */
+ lctlg %c0, %c15, GEN_LC_SW_INT_CRS
+ /* restore grs 0-15 */
+ lmg %r0, %r15, GEN_LC_SW_INT_GRS
+ .endm
+
+/* Save registers on the stack (r15), so we can have stacked interrupts. */
+ .macro SAVE_REGS_STACK
+ /* Allocate a stack frame for 15 general registers */
+ slgfi %r15, 15 * 8
+ /* Store registers r0 to r14 on the stack */
+ stmg %r0, %r14, 0(%r15)
+ /* Allocate a stack frame for 16 floating point registers */
+ /* The size of a FP register is the size of an double word */
+ slgfi %r15, 16 * 8
+ /* Save fp register on stack: offset to SP is multiple of reg number */
+ .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+ std \i, \i * 8(%r15)
+ .endr
+ /* Save fpc, but keep stack aligned on 64bits */
+ slgfi %r15, 8
+ efpc %r0
+ stg %r0, 0(%r15)
+ .endm
+
+/* Restore the register in reverse order */
+ .macro RESTORE_REGS_STACK
+ /* Restore fpc */
+ lfpc 0(%r15)
+ algfi %r15, 8
+ /* Restore fp register from stack: SP still where it was left */
+ /* and offset to SP is a multiple of reg number */
+ .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+ ld \i, \i * 8(%r15)
+ .endr
+ /* Now that we're done, rewind the stack pointer by 16 double word */
+ algfi %r15, 16 * 8
+ /* Load the registers from stack */
+ lmg %r0, %r14, 0(%r15)
+ /* Rewind the stack by 15 double word */
+ algfi %r15, 15 * 8
+ .endm
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 07/11] s390x: sie: Add SIE to lib
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (5 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 06/11] s390x: Split assembly into multiple files Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 08/11] s390x: sie: Add first SIE test Janosch Frank
` (4 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
This commit adds the definition of the SIE control block struct and
the assembly to execute SIE and save/restore guest registers.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
lib/s390x/asm-offsets.c | 11 +++
lib/s390x/asm/arch_def.h | 9 ++
lib/s390x/interrupt.c | 7 ++
lib/s390x/sie.h | 198 +++++++++++++++++++++++++++++++++++++++
s390x/cpu.S | 56 +++++++++++
5 files changed, 281 insertions(+)
create mode 100644 lib/s390x/sie.h
diff --git a/lib/s390x/asm-offsets.c b/lib/s390x/asm-offsets.c
index ee94ed3..a19f14b 100644
--- a/lib/s390x/asm-offsets.c
+++ b/lib/s390x/asm-offsets.c
@@ -8,6 +8,7 @@
#include <libcflat.h>
#include <kbuild.h>
#include <asm/arch_def.h>
+#include <sie.h>
int main(void)
{
@@ -69,6 +70,16 @@ int main(void)
OFFSET(GEN_LC_ARS_SA, lowcore, ars_sa);
OFFSET(GEN_LC_CRS_SA, lowcore, crs_sa);
OFFSET(GEN_LC_PGM_INT_TDB, lowcore, pgm_int_tdb);
+ OFFSET(__SF_SIE_CONTROL, stack_frame, empty1[0]);
+ OFFSET(__SF_SIE_SAVEAREA, stack_frame, empty1[1]);
+ OFFSET(__SF_SIE_REASON, stack_frame, empty1[2]);
+ OFFSET(__SF_SIE_FLAGS, stack_frame, empty1[3]);
+ OFFSET(SIE_SAVEAREA_HOST_GRS, vm_save_area, host.grs[0]);
+ OFFSET(SIE_SAVEAREA_HOST_FPRS, vm_save_area, host.fprs[0]);
+ OFFSET(SIE_SAVEAREA_HOST_FPC, vm_save_area, host.fpc);
+ OFFSET(SIE_SAVEAREA_GUEST_GRS, vm_save_area, guest.grs[0]);
+ OFFSET(SIE_SAVEAREA_GUEST_FPRS, vm_save_area, guest.fprs[0]);
+ OFFSET(SIE_SAVEAREA_GUEST_FPC, vm_save_area, guest.fpc);
return 0;
}
diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h
index f3ab830..9c4e330 100644
--- a/lib/s390x/asm/arch_def.h
+++ b/lib/s390x/asm/arch_def.h
@@ -8,6 +8,15 @@
#ifndef _ASM_S390X_ARCH_DEF_H_
#define _ASM_S390X_ARCH_DEF_H_
+/*
+ * We currently only specify the stack frame members needed for the
+ * SIE library code.
+ */
+struct stack_frame {
+ unsigned long back_chain;
+ unsigned long empty1[5];
+};
+
struct psw {
uint64_t mask;
uint64_t addr;
diff --git a/lib/s390x/interrupt.c b/lib/s390x/interrupt.c
index bac8862..1ce3607 100644
--- a/lib/s390x/interrupt.c
+++ b/lib/s390x/interrupt.c
@@ -11,6 +11,7 @@
#include <asm/barrier.h>
#include <sclp.h>
#include <interrupt.h>
+#include <sie.h>
static bool pgm_int_expected;
static bool ext_int_expected;
@@ -57,6 +58,12 @@ void register_pgm_cleanup_func(void (*f)(void))
static void fixup_pgm_int(void)
{
+ /* If we have an error on SIE we directly move to sie_exit */
+ if (lc->pgm_old_psw.addr >= (uint64_t)&sie_entry &&
+ lc->pgm_old_psw.addr <= (uint64_t)&sie_exit) {
+ lc->pgm_old_psw.addr = (uint64_t)&sie_exit;
+ }
+
switch (lc->pgm_int_code) {
case PGM_INT_CODE_PRIVILEGED_OPERATION:
/* Normal operation is in supervisor state, so this exception
diff --git a/lib/s390x/sie.h b/lib/s390x/sie.h
new file mode 100644
index 0000000..518613b
--- /dev/null
+++ b/lib/s390x/sie.h
@@ -0,0 +1,198 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef SIE_H
+#define SIE_H
+
+#define CPUSTAT_STOPPED 0x80000000
+#define CPUSTAT_WAIT 0x10000000
+#define CPUSTAT_ECALL_PEND 0x08000000
+#define CPUSTAT_STOP_INT 0x04000000
+#define CPUSTAT_IO_INT 0x02000000
+#define CPUSTAT_EXT_INT 0x01000000
+#define CPUSTAT_RUNNING 0x00800000
+#define CPUSTAT_RETAINED 0x00400000
+#define CPUSTAT_TIMING_SUB 0x00020000
+#define CPUSTAT_SIE_SUB 0x00010000
+#define CPUSTAT_RRF 0x00008000
+#define CPUSTAT_SLSV 0x00004000
+#define CPUSTAT_SLSR 0x00002000
+#define CPUSTAT_ZARCH 0x00000800
+#define CPUSTAT_MCDS 0x00000100
+#define CPUSTAT_KSS 0x00000200
+#define CPUSTAT_SM 0x00000080
+#define CPUSTAT_IBS 0x00000040
+#define CPUSTAT_GED2 0x00000010
+#define CPUSTAT_G 0x00000008
+#define CPUSTAT_GED 0x00000004
+#define CPUSTAT_J 0x00000002
+#define CPUSTAT_P 0x00000001
+
+struct kvm_s390_sie_block {
+ uint32_t cpuflags; /* 0x0000 */
+ uint32_t : 1; /* 0x0004 */
+ uint32_t prefix : 18;
+ uint32_t : 1;
+ uint32_t ibc : 12;
+ uint8_t reserved08[4]; /* 0x0008 */
+#define PROG_IN_SIE (1<<0)
+ uint32_t prog0c; /* 0x000c */
+ uint8_t reserved10[16]; /* 0x0010 */
+#define PROG_BLOCK_SIE (1<<0)
+#define PROG_REQUEST (1<<1)
+ uint32_t prog20; /* 0x0020 */
+ uint8_t reserved24[4]; /* 0x0024 */
+ uint64_t cputm; /* 0x0028 */
+ uint64_t ckc; /* 0x0030 */
+ uint64_t epoch; /* 0x0038 */
+ uint32_t svcc; /* 0x0040 */
+#define LCTL_CR0 0x8000
+#define LCTL_CR6 0x0200
+#define LCTL_CR9 0x0040
+#define LCTL_CR10 0x0020
+#define LCTL_CR11 0x0010
+#define LCTL_CR14 0x0002
+ uint16_t lctl; /* 0x0044 */
+ int16_t icpua; /* 0x0046 */
+#define ICTL_OPEREXC 0x80000000
+#define ICTL_PINT 0x20000000
+#define ICTL_LPSW 0x00400000
+#define ICTL_STCTL 0x00040000
+#define ICTL_ISKE 0x00004000
+#define ICTL_SSKE 0x00002000
+#define ICTL_RRBE 0x00001000
+#define ICTL_TPROT 0x00000200
+ uint32_t ictl; /* 0x0048 */
+#define ECA_CEI 0x80000000
+#define ECA_IB 0x40000000
+#define ECA_SIGPI 0x10000000
+#define ECA_MVPGI 0x01000000
+#define ECA_AIV 0x00200000
+#define ECA_VX 0x00020000
+#define ECA_PROTEXCI 0x00002000
+#define ECA_APIE 0x00000008
+#define ECA_SII 0x00000001
+ uint32_t eca; /* 0x004c */
+#define ICPT_INST 0x04
+#define ICPT_PROGI 0x08
+#define ICPT_INSTPROGI 0x0C
+#define ICPT_EXTREQ 0x10
+#define ICPT_EXTINT 0x14
+#define ICPT_IOREQ 0x18
+#define ICPT_WAIT 0x1c
+#define ICPT_VALIDITY 0x20
+#define ICPT_STOP 0x28
+#define ICPT_OPEREXC 0x2C
+#define ICPT_PARTEXEC 0x38
+#define ICPT_IOINST 0x40
+#define ICPT_KSS 0x5c
+ uint8_t icptcode; /* 0x0050 */
+ uint8_t icptstatus; /* 0x0051 */
+ uint16_t ihcpu; /* 0x0052 */
+ uint8_t reserved54[2]; /* 0x0054 */
+ uint16_t ipa; /* 0x0056 */
+ uint32_t ipb; /* 0x0058 */
+ uint32_t scaoh; /* 0x005c */
+#define FPF_BPBC 0x20
+ uint8_t fpf; /* 0x0060 */
+#define ECB_GS 0x40
+#define ECB_TE 0x10
+#define ECB_SRSI 0x04
+#define ECB_HOSTPROTINT 0x02
+ uint8_t ecb; /* 0x0061 */
+#define ECB2_CMMA 0x80
+#define ECB2_IEP 0x20
+#define ECB2_PFMFI 0x08
+#define ECB2_ESCA 0x04
+ uint8_t ecb2; /* 0x0062 */
+#define ECB3_DEA 0x08
+#define ECB3_AES 0x04
+#define ECB3_RI 0x01
+ uint8_t ecb3; /* 0x0063 */
+ uint32_t scaol; /* 0x0064 */
+ uint8_t reserved68; /* 0x0068 */
+ uint8_t epdx; /* 0x0069 */
+ uint8_t reserved6a[2]; /* 0x006a */
+ uint32_t todpr; /* 0x006c */
+#define GISA_FORMAT1 0x00000001
+ uint32_t gd; /* 0x0070 */
+ uint8_t reserved74[12]; /* 0x0074 */
+ uint64_t mso; /* 0x0080 */
+ uint64_t msl; /* 0x0088 */
+ struct psw gpsw; /* 0x0090 */
+ uint64_t gg14; /* 0x00a0 */
+ uint64_t gg15; /* 0x00a8 */
+ uint8_t reservedb0[8]; /* 0x00b0 */
+#define HPID_KVM 0x4
+#define HPID_VSIE 0x5
+ uint8_t hpid; /* 0x00b8 */
+ uint8_t reservedb9[11]; /* 0x00b9 */
+ uint16_t extcpuaddr; /* 0x00c4 */
+ uint16_t eic; /* 0x00c6 */
+ uint32_t reservedc8; /* 0x00c8 */
+ uint16_t pgmilc; /* 0x00cc */
+ uint16_t iprcc; /* 0x00ce */
+ uint32_t dxc; /* 0x00d0 */
+ uint16_t mcn; /* 0x00d4 */
+ uint8_t perc; /* 0x00d6 */
+ uint8_t peratmid; /* 0x00d7 */
+ uint64_t peraddr; /* 0x00d8 */
+ uint8_t eai; /* 0x00e0 */
+ uint8_t peraid; /* 0x00e1 */
+ uint8_t oai; /* 0x00e2 */
+ uint8_t armid; /* 0x00e3 */
+ uint8_t reservede4[4]; /* 0x00e4 */
+ uint64_t tecmc; /* 0x00e8 */
+ uint8_t reservedf0[12]; /* 0x00f0 */
+#define CRYCB_FORMAT_MASK 0x00000003
+#define CRYCB_FORMAT0 0x00000000
+#define CRYCB_FORMAT1 0x00000001
+#define CRYCB_FORMAT2 0x00000003
+ uint32_t crycbd; /* 0x00fc */
+ uint64_t gcr[16]; /* 0x0100 */
+ uint64_t gbea; /* 0x0180 */
+ uint8_t reserved188[8]; /* 0x0188 */
+ uint64_t sdnxo; /* 0x0190 */
+ uint8_t reserved198[8]; /* 0x0198 */
+ uint32_t fac; /* 0x01a0 */
+ uint8_t reserved1a4[20]; /* 0x01a4 */
+ uint64_t cbrlo; /* 0x01b8 */
+ uint8_t reserved1c0[8]; /* 0x01c0 */
+#define ECD_HOSTREGMGMT 0x20000000
+#define ECD_MEF 0x08000000
+#define ECD_ETOKENF 0x02000000
+#define ECD_ECC 0x00200000
+ uint32_t ecd; /* 0x01c8 */
+ uint8_t reserved1cc[18]; /* 0x01cc */
+ uint64_t pp; /* 0x01de */
+ uint8_t reserved1e6[2]; /* 0x01e6 */
+ uint64_t itdba; /* 0x01e8 */
+ uint64_t riccbd; /* 0x01f0 */
+ uint64_t gvrd; /* 0x01f8 */
+} __attribute__((packed));
+
+struct vm_save_regs {
+ u64 grs[16];
+ u64 fprs[16];
+ u32 fpc;
+};
+
+/* We might be able to nestle all of this into the stack frame. But
+ * having a dedicated save area that saves more than the s390 ELF ABI
+ * defines leaves us more freedom in the implementation.
+*/
+struct vm_save_area {
+ struct vm_save_regs guest;
+ struct vm_save_regs host;
+};
+
+struct vm {
+ struct kvm_s390_sie_block *sblk;
+ struct vm_save_area save_area;
+ /* Ptr to first guest page */
+ u8 *guest_mem;
+};
+
+extern void sie_entry(void);
+extern void sie_exit(void);
+extern void sie64a(struct kvm_s390_sie_block *sblk, struct vm_save_area *save_area);
+
+#endif /* SIE_H */
diff --git a/s390x/cpu.S b/s390x/cpu.S
index 4d78ec6..5267f02 100644
--- a/s390x/cpu.S
+++ b/s390x/cpu.S
@@ -60,6 +60,62 @@ smp_cpu_setup_state:
/* If the function returns, just loop here */
0: j 0
+/*
+ * sie64a calling convention:
+ * %r2 pointer to sie control block
+ * %r3 guest register save area
+ */
+.globl sie64a
+sie64a:
+ # Save host grs, fprs, fpc
+ stmg %r0,%r14,SIE_SAVEAREA_HOST_GRS(%r3) # save kernel registers
+ .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+ std \i, \i * 8 + SIE_SAVEAREA_HOST_FPRS(%r3)
+ .endr
+ stfpc SIE_SAVEAREA_HOST_FPC(%r3)
+
+ # Store scb and save_area pointer into stack frame
+ stg %r2,__SF_SIE_CONTROL(%r15) # save control block pointer
+ stg %r3,__SF_SIE_SAVEAREA(%r15) # save guest register save area
+
+ # Load guest's gprs, fprs and fpc
+ lmg %r0,%r13,SIE_SAVEAREA_GUEST_GRS(%r3)
+ .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+ ld \i, \i * 8 + SIE_SAVEAREA_GUEST_FPRS(%r3)
+ .endr
+ lfpc SIE_SAVEAREA_GUEST_FPC(%r3)
+
+ # Move scb ptr into r14 for the sie instruction
+ lg %r14,__SF_SIE_CONTROL(%r15)
+
+.globl sie_entry
+sie_entry:
+ sie 0(%r14)
+ nopr 7
+ nopr 7
+ nopr 7
+
+.globl sie_exit
+sie_exit:
+ # Load guest register save area
+ lg %r14,__SF_SIE_SAVEAREA(%r15)
+
+ # Store guest's gprs, fprs and fpc
+ stmg %r0,%r13,SIE_SAVEAREA_GUEST_GRS(%r14) # save guest gprs 0-13
+ .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+ std \i, \i * 8 + SIE_SAVEAREA_GUEST_FPRS(%r14)
+ .endr
+ stfpc SIE_SAVEAREA_GUEST_FPC(%r14)
+
+ # Restore host's gprs, fprs and fpc
+ .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+ ld \i, \i * 8 + SIE_SAVEAREA_HOST_FPRS(%r14)
+ .endr
+ lfpc SIE_SAVEAREA_HOST_FPC(%r14)
+ lmg %r0,%r14,SIE_SAVEAREA_HOST_GRS(%r14) # restore kernel registers
+
+ br %r14
+
.align 8
reset_psw:
.quad 0x0008000180000000
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 08/11] s390x: sie: Add first SIE test
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (6 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 07/11] s390x: sie: Add SIE to lib Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 09/11] s390x: Add diag318 intercept test Janosch Frank
` (3 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
Let's check if we get the correct interception data on a few
diags. This commit is more of an addition of boilerplate code than a
real test.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
s390x/Makefile | 1 +
s390x/sie.c | 113 ++++++++++++++++++++++++++++++++++++++++++++
s390x/unittests.cfg | 3 ++
3 files changed, 117 insertions(+)
create mode 100644 s390x/sie.c
diff --git a/s390x/Makefile b/s390x/Makefile
index 5f235f1..08d85c9 100644
--- a/s390x/Makefile
+++ b/s390x/Makefile
@@ -19,6 +19,7 @@ tests += $(TEST_DIR)/smp.elf
tests += $(TEST_DIR)/sclp.elf
tests += $(TEST_DIR)/css.elf
tests += $(TEST_DIR)/uv-guest.elf
+tests += $(TEST_DIR)/sie.elf
tests_binary = $(patsubst %.elf,%.bin,$(tests))
ifneq ($(HOST_KEY_DOCUMENT),)
diff --git a/s390x/sie.c b/s390x/sie.c
new file mode 100644
index 0000000..cfc746f
--- /dev/null
+++ b/s390x/sie.c
@@ -0,0 +1,113 @@
+#include <libcflat.h>
+#include <asm/asm-offsets.h>
+#include <asm/arch_def.h>
+#include <asm/interrupt.h>
+#include <asm/page.h>
+#include <alloc_page.h>
+#include <vmalloc.h>
+#include <asm/facility.h>
+#include <mmu.h>
+#include <sclp.h>
+#include <sie.h>
+
+static u8 *guest;
+static u8 *guest_instr;
+static struct vm vm;
+
+static void handle_validity(struct vm *vm)
+{
+ report(0, "VALIDITY: %x", vm->sblk->ipb >> 16);
+}
+
+static void sie(struct vm *vm)
+{
+ while (vm->sblk->icptcode == 0) {
+ sie64a(vm->sblk, &vm->save_area);
+ if (vm->sblk->icptcode == ICPT_VALIDITY)
+ handle_validity(vm);
+ }
+ vm->save_area.guest.grs[14] = vm->sblk->gg14;
+ vm->save_area.guest.grs[15] = vm->sblk->gg15;
+}
+
+static void sblk_cleanup(struct vm *vm)
+{
+ vm->sblk->icptcode = 0;
+}
+
+static void test_diag(u32 instr)
+{
+ vm.sblk->gpsw.addr = PAGE_SIZE * 2;
+ vm.sblk->gpsw.mask = 0x0000000180000000ULL;
+
+ memset(guest_instr, 0, PAGE_SIZE);
+ memcpy(guest_instr, &instr, 4);
+ sie(&vm);
+ report(vm.sblk->icptcode == ICPT_INST &&
+ vm.sblk->ipa == instr >> 16 && vm.sblk->ipb == instr << 16,
+ "Intercept data");
+ sblk_cleanup(&vm);
+}
+
+static struct {
+ const char *name;
+ u32 instr;
+} tests[] = {
+ { "10", 0x83020010 },
+ { "44", 0x83020044 },
+ { "9c", 0x8302009c },
+ { NULL, 0 }
+};
+
+static void test_diags(void)
+{
+ int i;
+
+ for (i = 0; tests[i].name; i++) {
+ report_prefix_push(tests[i].name);
+ test_diag(tests[i].instr);
+ report_prefix_pop();
+ }
+}
+
+static void setup_guest(void)
+{
+ setup_vm();
+
+ /* Allocate 1MB as guest memory */
+ guest = alloc_pages(8);
+ /* The first two pages are the lowcore */
+ guest_instr = guest + PAGE_SIZE * 2;
+
+ vm.sblk = alloc_page();
+
+ vm.sblk->cpuflags = CPUSTAT_ZARCH | CPUSTAT_RUNNING;
+ vm.sblk->prefix = 0;
+ /*
+ * Pageable guest with the same ASCE as the test programm, but
+ * the guest memory 0x0 is offset to start at the allocated
+ * guest pages and end after 1MB.
+ *
+ * It's not pretty but faster and easier than managing guest ASCEs.
+ */
+ vm.sblk->mso = (u64)guest;
+ vm.sblk->msl = (u64)guest;
+ vm.sblk->ihcpu = 0xffff;
+
+ vm.sblk->crycbd = (uint64_t)alloc_page();
+}
+
+int main(void)
+{
+ report_prefix_push("sie");
+ if (!sclp_facilities.has_sief2) {
+ report_skip("SIEF2 facility unavailable");
+ goto done;
+ }
+
+ setup_guest();
+ test_diags();
+done:
+ report_prefix_pop();
+ return report_summary();
+}
diff --git a/s390x/unittests.cfg b/s390x/unittests.cfg
index 3feb8bc..2298be6 100644
--- a/s390x/unittests.cfg
+++ b/s390x/unittests.cfg
@@ -96,3 +96,6 @@ smp = 2
[uv-guest]
file = uv-guest.elf
+
+[sie]
+file = sie.elf
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 09/11] s390x: Add diag318 intercept test
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (7 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 08/11] s390x: sie: Add first SIE test Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 10/11] s390x: Fix sclp.h style issues Janosch Frank
` (2 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
Not much to test except for the privilege and specification
exceptions.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
lib/s390x/sclp.c | 1 +
lib/s390x/sclp.h | 6 +++++-
s390x/intercept.c | 19 +++++++++++++++++++
3 files changed, 25 insertions(+), 1 deletion(-)
diff --git a/lib/s390x/sclp.c b/lib/s390x/sclp.c
index 06819a6..7a9b2c5 100644
--- a/lib/s390x/sclp.c
+++ b/lib/s390x/sclp.c
@@ -138,6 +138,7 @@ void sclp_facilities_setup(void)
assert(read_info);
cpu = sclp_get_cpu_entries();
+ sclp_facilities.has_diag318 = read_info->byte_134_diag318;
for (i = 0; i < read_info->entries_cpu; i++, cpu++) {
/*
* The logic for only reading the facilities from the
diff --git a/lib/s390x/sclp.h b/lib/s390x/sclp.h
index c3128b9..e7407ea 100644
--- a/lib/s390x/sclp.h
+++ b/lib/s390x/sclp.h
@@ -105,7 +105,8 @@ extern struct sclp_facilities sclp_facilities;
struct sclp_facilities {
uint64_t has_sief2 : 1;
- uint64_t : 63;
+ uint64_t has_diag318 : 1;
+ uint64_t : 62;
};
typedef struct ReadInfo {
@@ -130,6 +131,9 @@ typedef struct ReadInfo {
uint16_t highest_cpu;
uint8_t _reserved5[124 - 122]; /* 122-123 */
uint32_t hmfai;
+ uint8_t reserved7[134 - 128];
+ uint8_t byte_134_diag318 : 1;
+ uint8_t : 7;
struct CPUEntry entries[0];
} __attribute__((packed)) ReadInfo;
diff --git a/s390x/intercept.c b/s390x/intercept.c
index cde2f5f..86e57e1 100644
--- a/s390x/intercept.c
+++ b/s390x/intercept.c
@@ -8,6 +8,7 @@
* Thomas Huth <thuth@redhat.com>
*/
#include <libcflat.h>
+#include <sclp.h>
#include <asm/asm-offsets.h>
#include <asm/interrupt.h>
#include <asm/page.h>
@@ -152,6 +153,23 @@ static void test_testblock(void)
check_pgm_int_code(PGM_INT_CODE_ADDRESSING);
}
+static void test_diag318(void)
+{
+ expect_pgm_int();
+ enter_pstate();
+ asm volatile("diag %0,0,0x318\n" : : "d" (0x42));
+ check_pgm_int_code(PGM_INT_CODE_PRIVILEGED_OPERATION);
+
+ if (!sclp_facilities.has_diag318)
+ expect_pgm_int();
+
+ asm volatile("diag %0,0,0x318\n" : : "d" (0x42));
+
+ if (!sclp_facilities.has_diag318)
+ check_pgm_int_code(PGM_INT_CODE_SPECIFICATION);
+
+}
+
struct {
const char *name;
void (*func)(void);
@@ -162,6 +180,7 @@ struct {
{ "stap", test_stap, false },
{ "stidp", test_stidp, false },
{ "testblock", test_testblock, false },
+ { "diag318", test_diag318, false },
{ NULL, NULL, false }
};
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 10/11] s390x: Fix sclp.h style issues
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (8 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 09/11] s390x: Add diag318 intercept test Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 11/11] s390x: Fix uv_call() exception behavior Janosch Frank
2021-01-20 12:46 ` [kvm-unit-tests GIT PULL 00/11] s390x update Paolo Bonzini
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
Fix indentation
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Thomas Huth <thuth@redhat.com>
---
lib/s390x/sclp.h | 172 +++++++++++++++++++++++------------------------
1 file changed, 86 insertions(+), 86 deletions(-)
diff --git a/lib/s390x/sclp.h b/lib/s390x/sclp.h
index e7407ea..9f81c0f 100644
--- a/lib/s390x/sclp.h
+++ b/lib/s390x/sclp.h
@@ -79,10 +79,10 @@
#define SCCB_SIZE 4096
typedef struct SCCBHeader {
- uint16_t length;
- uint8_t function_code;
- uint8_t control_mask[3];
- uint16_t response_code;
+ uint16_t length;
+ uint8_t function_code;
+ uint8_t control_mask[3];
+ uint16_t response_code;
} __attribute__((packed)) SCCBHeader;
#define SCCB_DATA_LEN (SCCB_SIZE - sizeof(SCCBHeader))
@@ -90,15 +90,15 @@ typedef struct SCCBHeader {
/* CPU information */
typedef struct CPUEntry {
- uint8_t address;
- uint8_t reserved0;
- uint8_t : 4;
- uint8_t feat_sief2 : 1;
- uint8_t : 3;
- uint8_t features_res2 [SCCB_CPU_FEATURE_LEN - 1];
- uint8_t reserved2[6];
- uint8_t type;
- uint8_t reserved1;
+ uint8_t address;
+ uint8_t reserved0;
+ uint8_t : 4;
+ uint8_t feat_sief2 : 1;
+ uint8_t : 3;
+ uint8_t features_res2 [SCCB_CPU_FEATURE_LEN - 1];
+ uint8_t reserved2[6];
+ uint8_t type;
+ uint8_t reserved1;
} __attribute__((packed)) CPUEntry;
extern struct sclp_facilities sclp_facilities;
@@ -110,77 +110,77 @@ struct sclp_facilities {
};
typedef struct ReadInfo {
- SCCBHeader h;
- uint16_t rnmax;
- uint8_t rnsize;
- uint8_t _reserved1[16 - 11]; /* 11-15 */
- uint16_t entries_cpu; /* 16-17 */
- uint16_t offset_cpu; /* 18-19 */
- uint8_t _reserved2[24 - 20]; /* 20-23 */
- uint8_t loadparm[8]; /* 24-31 */
- uint8_t _reserved3[48 - 32]; /* 32-47 */
- uint64_t facilities; /* 48-55 */
- uint8_t _reserved0[76 - 56]; /* 56-75 */
- uint32_t ibc_val;
- uint8_t conf_char[99 - 80]; /* 80-98 */
- uint8_t mha_pow;
- uint32_t rnsize2;
- uint64_t rnmax2;
- uint8_t _reserved6[116 - 112]; /* 112-115 */
- uint8_t conf_char_ext[120 - 116]; /* 116-119 */
- uint16_t highest_cpu;
- uint8_t _reserved5[124 - 122]; /* 122-123 */
- uint32_t hmfai;
- uint8_t reserved7[134 - 128];
- uint8_t byte_134_diag318 : 1;
- uint8_t : 7;
- struct CPUEntry entries[0];
+ SCCBHeader h;
+ uint16_t rnmax;
+ uint8_t rnsize;
+ uint8_t _reserved1[16 - 11]; /* 11-15 */
+ uint16_t entries_cpu; /* 16-17 */
+ uint16_t offset_cpu; /* 18-19 */
+ uint8_t _reserved2[24 - 20]; /* 20-23 */
+ uint8_t loadparm[8]; /* 24-31 */
+ uint8_t _reserved3[48 - 32]; /* 32-47 */
+ uint64_t facilities; /* 48-55 */
+ uint8_t _reserved0[76 - 56]; /* 56-75 */
+ uint32_t ibc_val;
+ uint8_t conf_char[99 - 80]; /* 80-98 */
+ uint8_t mha_pow;
+ uint32_t rnsize2;
+ uint64_t rnmax2;
+ uint8_t _reserved6[116 - 112]; /* 112-115 */
+ uint8_t conf_char_ext[120 - 116]; /* 116-119 */
+ uint16_t highest_cpu;
+ uint8_t _reserved5[124 - 122]; /* 122-123 */
+ uint32_t hmfai;
+ uint8_t reserved7[134 - 128];
+ uint8_t byte_134_diag318 : 1;
+ uint8_t : 7;
+ struct CPUEntry entries[0];
} __attribute__((packed)) ReadInfo;
typedef struct ReadCpuInfo {
- SCCBHeader h;
- uint16_t nr_configured; /* 8-9 */
- uint16_t offset_configured; /* 10-11 */
- uint16_t nr_standby; /* 12-13 */
- uint16_t offset_standby; /* 14-15 */
- uint8_t reserved0[24-16]; /* 16-23 */
- struct CPUEntry entries[0];
+ SCCBHeader h;
+ uint16_t nr_configured; /* 8-9 */
+ uint16_t offset_configured; /* 10-11 */
+ uint16_t nr_standby; /* 12-13 */
+ uint16_t offset_standby; /* 14-15 */
+ uint8_t reserved0[24-16]; /* 16-23 */
+ struct CPUEntry entries[0];
} __attribute__((packed)) ReadCpuInfo;
typedef struct ReadStorageElementInfo {
- SCCBHeader h;
- uint16_t max_id;
- uint16_t assigned;
- uint16_t standby;
- uint8_t _reserved0[16 - 14]; /* 14-15 */
- uint32_t entries[0];
+ SCCBHeader h;
+ uint16_t max_id;
+ uint16_t assigned;
+ uint16_t standby;
+ uint8_t _reserved0[16 - 14]; /* 14-15 */
+ uint32_t entries[0];
} __attribute__((packed)) ReadStorageElementInfo;
typedef struct AttachStorageElement {
- SCCBHeader h;
- uint8_t _reserved0[10 - 8]; /* 8-9 */
- uint16_t assigned;
- uint8_t _reserved1[16 - 12]; /* 12-15 */
- uint32_t entries[0];
+ SCCBHeader h;
+ uint8_t _reserved0[10 - 8]; /* 8-9 */
+ uint16_t assigned;
+ uint8_t _reserved1[16 - 12]; /* 12-15 */
+ uint32_t entries[0];
} __attribute__((packed)) AttachStorageElement;
typedef struct AssignStorage {
- SCCBHeader h;
- uint16_t rn;
+ SCCBHeader h;
+ uint16_t rn;
} __attribute__((packed)) AssignStorage;
typedef struct IoaCfgSccb {
- SCCBHeader header;
- uint8_t atype;
- uint8_t reserved1;
- uint16_t reserved2;
- uint32_t aid;
+ SCCBHeader header;
+ uint8_t atype;
+ uint8_t reserved1;
+ uint16_t reserved2;
+ uint32_t aid;
} __attribute__((packed)) IoaCfgSccb;
typedef struct SCCB {
- SCCBHeader h;
- char data[SCCB_DATA_LEN];
- } __attribute__((packed)) SCCB;
+ SCCBHeader h;
+ char data[SCCB_DATA_LEN];
+} __attribute__((packed)) SCCB;
/* SCLP event types */
#define SCLP_EVENT_ASCII_CONSOLE_DATA 0x1a
@@ -195,13 +195,13 @@ typedef struct SCCB {
#define SCLP_SELECTIVE_READ 0x01
typedef struct WriteEventMask {
- SCCBHeader h;
- uint16_t _reserved;
- uint16_t mask_length;
- uint32_t cp_receive_mask;
- uint32_t cp_send_mask;
- uint32_t send_mask;
- uint32_t receive_mask;
+ SCCBHeader h;
+ uint16_t _reserved;
+ uint16_t mask_length;
+ uint32_t cp_receive_mask;
+ uint32_t cp_send_mask;
+ uint32_t send_mask;
+ uint32_t receive_mask;
} __attribute__((packed)) WriteEventMask;
#define MDBTYP_GO 0x0001
@@ -254,25 +254,25 @@ struct mdb {
} __attribute__((packed));
typedef struct EventBufferHeader {
- uint16_t length;
- uint8_t type;
- uint8_t flags;
- uint16_t _reserved;
+ uint16_t length;
+ uint8_t type;
+ uint8_t flags;
+ uint16_t _reserved;
} __attribute__((packed)) EventBufferHeader;
typedef struct WriteEventData {
- SCCBHeader h;
- EventBufferHeader ebh;
- union {
- char data[0];
- struct mdb mdb;
- } msg;
+ SCCBHeader h;
+ EventBufferHeader ebh;
+ union {
+ char data[0];
+ struct mdb mdb;
+ } msg;
} __attribute__((packed)) WriteEventData;
typedef struct ReadEventData {
- SCCBHeader h;
- EventBufferHeader ebh;
- uint32_t mask;
+ SCCBHeader h;
+ EventBufferHeader ebh;
+ uint32_t mask;
} __attribute__((packed)) ReadEventData;
extern char _sccb[];
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* [kvm-unit-tests GIT PULL 11/11] s390x: Fix uv_call() exception behavior
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (9 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 10/11] s390x: Fix sclp.h style issues Janosch Frank
@ 2021-01-20 11:41 ` Janosch Frank
2021-01-20 12:46 ` [kvm-unit-tests GIT PULL 00/11] s390x update Paolo Bonzini
11 siblings, 0 replies; 13+ messages in thread
From: Janosch Frank @ 2021-01-20 11:41 UTC (permalink / raw)
To: pbonzini; +Cc: kvm, frankja, david, borntraeger, cohuck, linux-s390, imbrenda
On a program exception we usually skip the instruction that caused the
exception and continue. That won't work for UV calls since a "brc
3,0b" will retry the instruction if the CC is > 1. Let's forgo the brc
when checking for privilege exceptions and use a uv_call_once().
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Suggested-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
lib/s390x/asm/uv.h | 24 ++++++++++++++++--------
s390x/uv-guest.c | 6 +++---
2 files changed, 19 insertions(+), 11 deletions(-)
diff --git a/lib/s390x/asm/uv.h b/lib/s390x/asm/uv.h
index 4c2fc48..39d2dc0 100644
--- a/lib/s390x/asm/uv.h
+++ b/lib/s390x/asm/uv.h
@@ -50,19 +50,12 @@ struct uv_cb_share {
u64 reserved28;
} __attribute__((packed)) __attribute__((aligned(8)));
-static inline int uv_call(unsigned long r1, unsigned long r2)
+static inline int uv_call_once(unsigned long r1, unsigned long r2)
{
int cc;
- /*
- * The brc instruction will take care of the cc 2/3 case where
- * we need to continue the execution because we were
- * interrupted. The inline assembly will only return on
- * success/error i.e. cc 0/1.
- */
asm volatile(
"0: .insn rrf,0xB9A40000,%[r1],%[r2],0,0\n"
- " brc 3,0b\n"
" ipm %[cc]\n"
" srl %[cc],28\n"
: [cc] "=d" (cc)
@@ -71,4 +64,19 @@ static inline int uv_call(unsigned long r1, unsigned long r2)
return cc;
}
+static inline int uv_call(unsigned long r1, unsigned long r2)
+{
+ int cc;
+
+ /*
+ * CC 2 and 3 tell us to re-execute because the instruction
+ * hasn't yet finished.
+ */
+ do {
+ cc = uv_call_once(r1, r2);
+ } while (cc > 1);
+
+ return cc;
+}
+
#endif
diff --git a/s390x/uv-guest.c b/s390x/uv-guest.c
index e51b85e..9954444 100644
--- a/s390x/uv-guest.c
+++ b/s390x/uv-guest.c
@@ -29,7 +29,7 @@ static void test_priv(void)
uvcb.len = sizeof(struct uv_cb_qui);
expect_pgm_int();
enter_pstate();
- uv_call(0, (u64)&uvcb);
+ uv_call_once(0, (u64)&uvcb);
check_pgm_int_code(PGM_INT_CODE_PRIVILEGED_OPERATION);
report_prefix_pop();
@@ -38,7 +38,7 @@ static void test_priv(void)
uvcb.len = sizeof(struct uv_cb_share);
expect_pgm_int();
enter_pstate();
- uv_call(0, (u64)&uvcb);
+ uv_call_once(0, (u64)&uvcb);
check_pgm_int_code(PGM_INT_CODE_PRIVILEGED_OPERATION);
report_prefix_pop();
@@ -47,7 +47,7 @@ static void test_priv(void)
uvcb.len = sizeof(struct uv_cb_share);
expect_pgm_int();
enter_pstate();
- uv_call(0, (u64)&uvcb);
+ uv_call_once(0, (u64)&uvcb);
check_pgm_int_code(PGM_INT_CODE_PRIVILEGED_OPERATION);
report_prefix_pop();
--
2.25.1
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [kvm-unit-tests GIT PULL 00/11] s390x update
2021-01-20 11:41 [kvm-unit-tests GIT PULL 00/11] s390x update Janosch Frank
` (10 preceding siblings ...)
2021-01-20 11:41 ` [kvm-unit-tests GIT PULL 11/11] s390x: Fix uv_call() exception behavior Janosch Frank
@ 2021-01-20 12:46 ` Paolo Bonzini
11 siblings, 0 replies; 13+ messages in thread
From: Paolo Bonzini @ 2021-01-20 12:46 UTC (permalink / raw)
To: Janosch Frank; +Cc: kvm, david, borntraeger, cohuck, linux-s390, imbrenda
On 20/01/21 12:41, Janosch Frank wrote:
> https://gitlab.com/frankja/kvm-unit-tests.git tags/s390x-2021-20-01
Pulled, thanks.
Paolo
^ permalink raw reply [flat|nested] 13+ messages in thread