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Thu, 29 Jul 2021 13:48:10 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 74C744C070; Thu, 29 Jul 2021 13:48:10 +0000 (GMT) Received: from t46lp67.lnxne.boe (unknown [9.152.108.100]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 29 Jul 2021 13:48:10 +0000 (GMT) From: Janosch Frank To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, imbrenda@linux.ibm.com, david@redhat.com, thuth@redhat.com, cohuck@redhat.com Subject: [kvm-unit-tests PATCH 1/4] s390x: sie: Add sie lib validity handling Date: Thu, 29 Jul 2021 13:48:00 +0000 Message-Id: <20210729134803.183358-2-frankja@linux.ibm.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210729134803.183358-1-frankja@linux.ibm.com> References: <20210729134803.183358-1-frankja@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 9d_HXLttQ_T_fFkJb9nzhgQ2Ek-CI1P3 X-Proofpoint-GUID: P7gIFfRnQsNCSoTq7NnjwBOeZ7qY4z92 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.790 definitions=2021-07-29_10:2021-07-29,2021-07-29 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 mlxscore=0 priorityscore=1501 phishscore=0 mlxlogscore=999 clxscore=1015 spamscore=0 malwarescore=0 suspectscore=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2107290087 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Let's start off the SIE lib with validity handling code since that has the least amount of dependencies to other files. Signed-off-by: Janosch Frank --- lib/s390x/sie.c | 41 +++++++++++++++++++++++++++++++++++++++++ lib/s390x/sie.h | 3 +++ s390x/Makefile | 1 + s390x/mvpg-sie.c | 2 +- s390x/sie.c | 7 +------ 5 files changed, 47 insertions(+), 7 deletions(-) create mode 100644 lib/s390x/sie.c diff --git a/lib/s390x/sie.c b/lib/s390x/sie.c new file mode 100644 index 00000000..9107519f --- /dev/null +++ b/lib/s390x/sie.c @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Virtualization library that speeds up managing guests. + * + * Copyright (c) 2021 IBM Corp + * + * Authors: + * Janosch Frank + */ + +#include +#include +#include + +static bool validity_expected; +static uint16_t vir; + +void sie_expect_validity(void) +{ + validity_expected = true; + vir = 0; +} + +void sie_check_validity(uint16_t vir_exp) +{ + report(vir_exp == vir, "VALIDITY: %x", vir); + mb(); + vir = 0; +} + +void sie_handle_validity(struct vm *vm) +{ + if (vm->sblk->icptcode != ICPT_VALIDITY) + return; + + vir = vm->sblk->ipb >> 16; + + if (!validity_expected) + report_abort("VALIDITY: %x", vir); + validity_expected = false; +} diff --git a/lib/s390x/sie.h b/lib/s390x/sie.h index 6ba858a2..7ff98d2d 100644 --- a/lib/s390x/sie.h +++ b/lib/s390x/sie.h @@ -197,5 +197,8 @@ struct vm { 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); +void sie_expect_validity(void); +void sie_check_validity(uint16_t vir_exp); +void sie_handle_validity(struct vm *vm); #endif /* _S390X_SIE_H_ */ diff --git a/s390x/Makefile b/s390x/Makefile index 6565561b..ef8041a6 100644 --- a/s390x/Makefile +++ b/s390x/Makefile @@ -71,6 +71,7 @@ cflatobjs += lib/s390x/css_dump.o cflatobjs += lib/s390x/css_lib.o cflatobjs += lib/s390x/malloc_io.o cflatobjs += lib/s390x/uv.o +cflatobjs += lib/s390x/sie.o OBJDIRS += lib/s390x diff --git a/s390x/mvpg-sie.c b/s390x/mvpg-sie.c index 5e70f591..2ac91eec 100644 --- a/s390x/mvpg-sie.c +++ b/s390x/mvpg-sie.c @@ -39,7 +39,7 @@ static void sie(struct vm *vm) while (vm->sblk->icptcode == 0) { sie64a(vm->sblk, &vm->save_area); - assert(vm->sblk->icptcode != ICPT_VALIDITY); + sie_handle_validity(vm); } vm->save_area.guest.grs[14] = vm->sblk->gg14; vm->save_area.guest.grs[15] = vm->sblk->gg15; diff --git a/s390x/sie.c b/s390x/sie.c index 134d3c4f..5c798a9e 100644 --- a/s390x/sie.c +++ b/s390x/sie.c @@ -24,17 +24,12 @@ 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); + sie_handle_validity(vm); } vm->save_area.guest.grs[14] = vm->sblk->gg14; vm->save_area.guest.grs[15] = vm->sblk->gg15; -- 2.30.2