From patchwork Thu May 25 21:05:00 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aurelien Jarno X-Patchwork-Id: 767148 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3wYhyp6ShKz9rxw for ; Fri, 26 May 2017 07:21:20 +1000 (AEST) Received: from localhost ([::1]:33758 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dE0C6-0005KO-Dn for incoming@patchwork.ozlabs.org; Thu, 25 May 2017 17:21:18 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55320) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDzwe-0005gz-9P for qemu-devel@nongnu.org; Thu, 25 May 2017 17:05:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dDzwa-0001MR-O3 for qemu-devel@nongnu.org; Thu, 25 May 2017 17:05:20 -0400 Received: from hall.aurel32.net ([2001:bc8:30d7:100::1]:37442) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dDzwa-0001Kn-DW for qemu-devel@nongnu.org; Thu, 25 May 2017 17:05:16 -0400 Received: from [2001:bc8:30d7:121:cc44:2c6c:4d9c:42c0] (helo=ohm.rr44.fr) by hall.aurel32.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1dDzwZ-0008Rq-3m; Thu, 25 May 2017 23:05:15 +0200 Received: from aurel32 by ohm.rr44.fr with local (Exim 4.89) (envelope-from ) id 1dDzwW-0001KZ-QN; Thu, 25 May 2017 23:05:12 +0200 From: Aurelien Jarno To: qemu-devel@nongnu.org Date: Thu, 25 May 2017 23:05:00 +0200 Message-Id: <20170525210508.4910-19-aurelien@aurel32.net> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170525210508.4910-1-aurelien@aurel32.net> References: <20170525210508.4910-1-aurelien@aurel32.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2001:bc8:30d7:100::1 Subject: [Qemu-devel] [PATCH 18/26] target/s390x: implement COMPARE LOGICAL LONG UNICODE X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexander Graf , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" For that we need to make program_interrupt available to qemu-user. Fortunately there is almost nothing to change as both kvm_enabled and CONFIG_KVM evaluate to false in that case. Signed-off-by: Aurelien Jarno Reviewed-by: Richard Henderson --- target/s390x/helper.h | 1 + target/s390x/insn-data.def | 2 ++ target/s390x/mem_helper.c | 76 ++++++++++++++++++++++++++++++++++++++-------- target/s390x/misc_helper.c | 4 +-- target/s390x/translate.c | 12 ++++++++ 5 files changed, 80 insertions(+), 15 deletions(-) diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 32938d99de..1b82d1a368 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -24,6 +24,7 @@ DEF_HELPER_FLAGS_4(stam, TCG_CALL_NO_WG, void, env, i32, i64, i32) DEF_HELPER_FLAGS_4(lam, TCG_CALL_NO_WG, void, env, i32, i64, i32) DEF_HELPER_4(mvcle, i32, env, i32, i64, i32) DEF_HELPER_4(clcle, i32, env, i32, i64, i32) +DEF_HELPER_4(clclu, i32, env, i32, i64, i32) DEF_HELPER_3(cegb, i64, env, s64, i32) DEF_HELPER_3(cdgb, i64, env, s64, i32) DEF_HELPER_3(cxgb, i64, env, s64, i32) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index e241c1e486..f9e69f9b09 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -214,6 +214,8 @@ C(0x0f00, CLCL, RR_a, Z, 0, 0, 0, 0, clcl, 0) /* COMPARE LOGICAL LONG EXTENDED */ C(0xa900, CLCLE, RS_a, Z, 0, a2, 0, 0, clcle, 0) +/* COMPARE LOGICAL LONG UNICODE */ + C(0xeb8f, CLCLU, RSY_a, E2, 0, a2, 0, 0, clclu, 0) /* COMPARE LOGICAL CHARACTERS UNDER MASK */ C(0xbd00, CLM, RS_b, Z, r1_o, a2, 0, 0, clm, 0) C(0xeb21, CLMY, RSY_b, LD, r1_o, a2, 0, 0, clm, 0) diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 6add413531..7ce7daaf11 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -67,6 +67,32 @@ static inline uint32_t adj_len_to_page(uint32_t len, uint64_t addr) return len; } +/* Trigger a SPECIFICATION exception if an address or a length is not + naturally aligned. */ +static inline void check_alignment(CPUS390XState *env, uint64_t v, + int wordsize, uintptr_t ra) +{ + if (v % wordsize) { + CPUState *cs = CPU(s390_env_get_cpu(env)); + cpu_restore_state(cs, ra); + program_interrupt(env, PGM_SPECIFICATION, 6); + } +} + +/* Load a value from memory according to its size. */ +static inline uint64_t cpu_ldusize_data_ra(CPUS390XState *env, uint64_t addr, + int wordsize, uintptr_t ra) +{ + switch (wordsize) { + case 1: + return cpu_ldub_data_ra(env, addr, ra); + case 2: + return cpu_lduw_data_ra(env, addr, ra); + default: + abort(); + } +} + static void fast_memset(CPUS390XState *env, uint64_t dest, uint8_t byte, uint32_t l, uintptr_t ra) { @@ -700,12 +726,14 @@ uint32_t HELPER(mvcle)(CPUS390XState *env, uint32_t r1, uint64_t a2, static inline uint32_t do_clcl(CPUS390XState *env, uint64_t *dest, uint64_t *destlen, uint64_t *src, uint64_t *srclen, - uint8_t pad, uint64_t limit, - uintptr_t ra) + uint16_t pad, uint64_t limit, + int wordsize, uintptr_t ra) { uint64_t len = MAX(*srclen, *destlen); uint32_t cc = 0; + check_alignment(env, *srclen | *destlen, wordsize, ra); + if (!(*destlen || *srclen)) { return cc; } @@ -717,15 +745,15 @@ static inline uint32_t do_clcl(CPUS390XState *env, cc = 3; } - for (; len; len--) { - uint8_t v1 = pad; - uint8_t v2 = pad; + for (; len; len -= wordsize) { + uint16_t v1 = pad; + uint16_t v2 = pad; if (*srclen) { - v1 = cpu_ldub_data_ra(env, *src, ra); + v1 = cpu_ldusize_data_ra(env, *src, wordsize, ra); } if (*destlen) { - v2 = cpu_ldub_data_ra(env, *dest, ra); + v2 = cpu_ldusize_data_ra(env, *dest, wordsize, ra); } if (v1 != v2) { @@ -734,12 +762,12 @@ static inline uint32_t do_clcl(CPUS390XState *env, } if (*srclen) { - *src += 1; - *srclen -= 1; + *src += wordsize; + *srclen -= wordsize; } if (*destlen) { - *dest += 1; - *destlen -= 1; + *dest += wordsize; + *destlen -= wordsize; } } @@ -758,7 +786,7 @@ uint32_t HELPER(clcl)(CPUS390XState *env, uint32_t r1, uint32_t r2) uint8_t pad = env->regs[r2 + 1] >> 24; uint32_t cc; - cc = do_clcl(env, &dest, &destlen, &src, &srclen, pad, -1, ra); + cc = do_clcl(env, &dest, &destlen, &src, &srclen, pad, -1, 1, ra); env->regs[r1 + 1] = deposit64(env->regs[r1 + 1], 0, 24, destlen); env->regs[r2 + 1] = deposit64(env->regs[r2 + 1], 0, 24, srclen); @@ -780,7 +808,29 @@ uint32_t HELPER(clcle)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint8_t pad = a2; uint32_t cc; - cc = do_clcl(env, &dest, &destlen, &src, &srclen, pad, 0x2000, ra); + cc = do_clcl(env, &dest, &destlen, &src, &srclen, pad, 0x2000, 1, ra); + + set_length(env, r1 + 1, destlen); + set_length(env, r3 + 1, srclen); + set_address(env, r1, dest); + set_address(env, r3, src); + + return cc; +} + +/* compare logical long unicode memcompare insn with padding */ +uint32_t HELPER(clclu)(CPUS390XState *env, uint32_t r1, uint64_t a2, + uint32_t r3) +{ + uintptr_t ra = GETPC(); + uint64_t destlen = get_length(env, r1 + 1); + uint64_t dest = get_address(env, r1); + uint64_t srclen = get_length(env, r3 + 1); + uint64_t src = get_address(env, r3); + uint16_t pad = a2; + uint32_t cc = 0; + + cc = do_clcl(env, &dest, &destlen, &src, &srclen, pad, 0x1000, 2, ra); set_length(env, r1 + 1, destlen); set_length(env, r3 + 1, srclen); diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c index 23ec52cf35..f083c8d3cf 100644 --- a/target/s390x/misc_helper.c +++ b/target/s390x/misc_helper.c @@ -80,8 +80,6 @@ void HELPER(exception)(CPUS390XState *env, uint32_t excp) cpu_loop_exit(cs); } -#ifndef CONFIG_USER_ONLY - void program_interrupt(CPUS390XState *env, uint32_t code, int ilen) { S390CPU *cpu = s390_env_get_cpu(env); @@ -108,6 +106,8 @@ void program_interrupt(CPUS390XState *env, uint32_t code, int ilen) } } +#ifndef CONFIG_USER_ONLY + /* SCLP service call */ uint32_t HELPER(servc)(CPUS390XState *env, uint64_t r1, uint64_t r2) { diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 6f8d75bc2e..2ea96c0a8f 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -1196,6 +1196,7 @@ typedef enum DisasFacility { FAC_ILA, /* interlocked access facility 1 */ FAC_LPP, /* load-program-parameter */ FAC_DAT_ENH, /* DAT-enhancement */ + FAC_E2, /* extended-translation facility 2 */ } DisasFacility; struct DisasInsn { @@ -1933,6 +1934,17 @@ static ExitStatus op_clcle(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_clclu(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); + TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3)); + gen_helper_clclu(cc_op, cpu_env, r1, o->in2, r3); + tcg_temp_free_i32(r1); + tcg_temp_free_i32(r3); + set_cc_static(s); + return NO_EXIT; +} + static ExitStatus op_clm(DisasContext *s, DisasOps *o) { TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));