From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:16652 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729396AbfHTK4P (ORCPT ); Tue, 20 Aug 2019 06:56:15 -0400 Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x7KArMix119298 for ; Tue, 20 Aug 2019 06:56:14 -0400 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0b-001b2d01.pphosted.com with ESMTP id 2ugd9epbkd-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 20 Aug 2019 06:56:13 -0400 Received: from localhost by e06smtp03.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 20 Aug 2019 11:56:11 +0100 From: Janosch Frank Subject: [kvm-unit-tests PATCH 3/3] s390x: STSI tests Date: Tue, 20 Aug 2019 12:55:50 +0200 In-Reply-To: <20190820105550.4991-1-frankja@linux.ibm.com> References: <20190820105550.4991-1-frankja@linux.ibm.com> Message-Id: <20190820105550.4991-4-frankja@linux.ibm.com> Sender: linux-s390-owner@vger.kernel.org List-ID: To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, david@redhat.com, thuth@redhat.com For now let's concentrate on the error conditions. Signed-off-by: Janosch Frank --- s390x/Makefile | 1 + s390x/stsi.c | 123 ++++++++++++++++++++++++++++++++++++++++++++ s390x/unittests.cfg | 5 +- 3 files changed, 128 insertions(+), 1 deletion(-) create mode 100644 s390x/stsi.c diff --git a/s390x/Makefile b/s390x/Makefile index b654c56..311ab77 100644 --- a/s390x/Makefile +++ b/s390x/Makefile @@ -12,6 +12,7 @@ tests += $(TEST_DIR)/vector.elf tests += $(TEST_DIR)/gs.elf tests += $(TEST_DIR)/iep.elf tests += $(TEST_DIR)/diag288.elf +tests += $(TEST_DIR)/stsi.elf tests_binary = $(patsubst %.elf,%.bin,$(tests)) all: directories test_cases test_cases_binary diff --git a/s390x/stsi.c b/s390x/stsi.c new file mode 100644 index 0000000..005f337 --- /dev/null +++ b/s390x/stsi.c @@ -0,0 +1,123 @@ +/* + * Store System Information tests + * + * Copyright (c) 2019 IBM Corp + * + * Authors: + * Janosch Frank + * + * 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 +#include +#include +#include + +static uint8_t pagebuf[PAGE_SIZE * 2] __attribute__((aligned(PAGE_SIZE * 2))); + +static inline unsigned long stsi(unsigned long *addr, + unsigned long fc, uint8_t sel1, uint8_t sel2) +{ + register unsigned long r0 asm("0") = (fc << 28) | sel1; + register unsigned long r1 asm("1") = sel2; + int cc; + + asm volatile("stsi 0(%3)\n" + "ipm %[cc]\n" + "srl %[cc],28\n" + : "+d" (r0), [cc] "=d" (cc) + : "d" (r1), "a" (addr) + : "cc", "memory"); + return cc; +} + +static inline void stsi_zero_r0(unsigned long *addr, + unsigned long fc, uint8_t sel1, uint8_t sel2) +{ + register unsigned long r0 asm("0") = (fc << 28) | (1 << 8) | sel1; + register unsigned long r1 asm("1") = sel2; + + + asm volatile("stsi 0(%2)" + : "+d" (r0) + : "d" (r1), "a" (addr) + : "cc", "memory"); +} + +static inline void stsi_zero_r1(unsigned long *addr, + unsigned long fc, uint8_t sel1, uint8_t sel2) +{ + register unsigned long r0 asm("0") = (fc << 28) | sel1; + register unsigned long r1 asm("1") = (1 << 16) | sel2; + + + asm volatile("stsi 0(%2)" + : "+d" (r0) + : "d" (r1), "a" (addr) + : "cc", "memory"); +} + +static inline unsigned long stsi_get_fc(unsigned long *addr) +{ + register unsigned long r0 asm("0") = 0; + register unsigned long r1 asm("1") = 0; + + + asm volatile("stsi 0(%2)" + : "+d" (r0) + : "d" (r1), "a" (addr) + : "cc", "memory"); + return r0 >> 28; +} + +static void test_specs(void) +{ + report_prefix_push("spec ex"); + + report_prefix_push("inv r0"); + expect_pgm_int(); + stsi_zero_r0((void *)pagebuf, 1, 0, 0); + check_pgm_int_code(PGM_INT_CODE_SPECIFICATION); + report_prefix_pop(); + + report_prefix_push("inv r1"); + expect_pgm_int(); + stsi_zero_r1((void *)pagebuf, 1, 0, 0); + check_pgm_int_code(PGM_INT_CODE_SPECIFICATION); + report_prefix_pop(); + + report_prefix_push("unaligned"); + expect_pgm_int(); + stsi((void *)pagebuf + 42, 1, 0, 0); + check_pgm_int_code(PGM_INT_CODE_SPECIFICATION); + report_prefix_pop(); + + report_prefix_pop(); +} + +static void test_priv(void) +{ + report_prefix_push("privileged"); + expect_pgm_int(); + enter_pstate(); + stsi((void *)pagebuf, 0, 0, 0); + check_pgm_int_code(PGM_INT_CODE_PRIVILEGED_OPERATION); + report_prefix_pop(); +} + +static void test_fc(void) +{ + report("cc == 3", stsi((void *)pagebuf, 7, 0, 0)); + report("r0 == 3", stsi_get_fc((void *)pagebuf)); +} + +int main(void) +{ + report_prefix_push("stsi"); + test_priv(); + test_specs(); + test_fc(); + return report_summary(); +} diff --git a/s390x/unittests.cfg b/s390x/unittests.cfg index ca10f38..c56258a 100644 --- a/s390x/unittests.cfg +++ b/s390x/unittests.cfg @@ -64,4 +64,7 @@ file = iep.elf [diag288] file = diag288.elf -extra_params=-device diag288,id=watchdog0 --watchdog-action inject-nmi \ No newline at end of file +extra_params=-device diag288,id=watchdog0 --watchdog-action inject-nmi + +[stsi] +file = stsi.elf -- 2.17.0