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qemu.18973
0121-s390x-tcg-introduce-and-use-s390_pr.patch
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File 0121-s390x-tcg-introduce-and-use-s390_pr.patch of Package qemu.18973
From: David Hildenbrand <david@redhat.com> Date: Thu, 30 Nov 2017 17:27:29 +0100 Subject: s390x/tcg: introduce and use s390_program_interrupt() Allows to easily convert more callers of program_interrupt() and to easily introduce new exceptions without forgetting about the cpu state reset. Use s390_program_interrupt() in places where we already had the same pattern. We will later get rid of program_interrupt(). RA != 0 checks are already done behind the scenes. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20171130162744.25442-2-david@redhat.com> (cherry picked from commit 8d2f850a5ab7579a852f23b28273940a47dfd7ff) [LY: BSC#1123179] Signed-off-by: Cornelia Huck <cohuck@redhat.com> --- target/s390x/cpu.h | 2 ++ target/s390x/crypto_helper.c | 7 ++----- target/s390x/excp_helper.c | 5 +---- target/s390x/interrupt.c | 13 +++++++++++++ target/s390x/mem_helper.c | 35 +++++++++++------------------------ target/s390x/misc_helper.c | 3 +-- 6 files changed, 30 insertions(+), 35 deletions(-) diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index fd018740cb51a53412471a580768..e9f9ddc99709f8a800484769d52b 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -724,6 +724,8 @@ void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr, /* automatically detect the instruction length */ #define ILEN_AUTO 0xff void program_interrupt(CPUS390XState *env, uint32_t code, int ilen); +void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen, + uintptr_t ra); /* service interrupts are floating therefore we must not pass an cpustate */ void s390_sclp_extint(uint32_t parm); diff --git a/target/s390x/crypto_helper.c b/target/s390x/crypto_helper.c index fa360a2d6e871d92bbc792379d10..5c79790187c4ed9bdce45676643a 100644 --- a/target/s390x/crypto_helper.c +++ b/target/s390x/crypto_helper.c @@ -23,7 +23,6 @@ uint32_t HELPER(msa)(CPUS390XState *env, uint32_t r1, uint32_t r2, uint32_t r3, const uintptr_t ra = GETPC(); const uint8_t mod = env->regs[0] & 0x80ULL; const uint8_t fc = env->regs[0] & 0x7fULL; - CPUState *cs = CPU(s390_env_get_cpu(env)); uint8_t subfunc[16] = { 0 }; uint64_t param_addr; int i; @@ -35,8 +34,7 @@ uint32_t HELPER(msa)(CPUS390XState *env, uint32_t r1, uint32_t r2, uint32_t r3, case S390_FEAT_TYPE_PCKMO: case S390_FEAT_TYPE_PCC: if (mod) { - cpu_restore_state(cs, ra); - program_interrupt(env, PGM_SPECIFICATION, 4); + s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra); return 0; } break; @@ -44,8 +42,7 @@ uint32_t HELPER(msa)(CPUS390XState *env, uint32_t r1, uint32_t r2, uint32_t r3, s390_get_feat_block(type, subfunc); if (!test_be_bit(fc, subfunc)) { - cpu_restore_state(cs, ra); - program_interrupt(env, PGM_SPECIFICATION, 4); + s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra); return 0; } diff --git a/target/s390x/excp_helper.c b/target/s390x/excp_helper.c index e04b67066355037e460fa1d2d0af..d831537544e61978af8a39e344fc 100644 --- a/target/s390x/excp_helper.c +++ b/target/s390x/excp_helper.c @@ -554,10 +554,7 @@ void s390x_cpu_do_unaligned_access(CPUState *cs, vaddr addr, S390CPU *cpu = S390_CPU(cs); CPUS390XState *env = &cpu->env; - if (retaddr) { - cpu_restore_state(cs, retaddr); - } - program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO); + s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, retaddr); } #endif /* CONFIG_USER_ONLY */ diff --git a/target/s390x/interrupt.c b/target/s390x/interrupt.c index ce6177c141fc29c06e4814943f9e..b07e75daedc33e6479c367a85b4e 100644 --- a/target/s390x/interrupt.c +++ b/target/s390x/interrupt.c @@ -53,6 +53,19 @@ void program_interrupt(CPUS390XState *env, uint32_t code, int ilen) } } +void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen, + uintptr_t ra) +{ +#ifdef CONFIG_TCG + S390CPU *cpu = s390_env_get_cpu(env); + + if (tcg_enabled()) { + cpu_restore_state(CPU(cpu), ra); + } +#endif + program_interrupt(env, code, ilen); +} + #if !defined(CONFIG_USER_ONLY) static void cpu_inject_service(S390CPU *cpu, uint32_t param) { diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index a1652d484943553f155720c63547..2625d843b3cab59b8325660bb062 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -85,9 +85,7 @@ 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); + s390_program_interrupt(env, PGM_SPECIFICATION, 6, ra); } } @@ -545,8 +543,7 @@ void HELPER(srst)(CPUS390XState *env, uint32_t r1, uint32_t r2) /* Bits 32-55 must contain all 0. */ if (env->regs[0] & 0xffffff00u) { - cpu_restore_state(ENV_GET_CPU(env), ra); - program_interrupt(env, PGM_SPECIFICATION, 6); + s390_program_interrupt(env, PGM_SPECIFICATION, 6, ra); } str = get_address(env, r2); @@ -583,8 +580,7 @@ void HELPER(srstu)(CPUS390XState *env, uint32_t r1, uint32_t r2) /* Bits 32-47 of R0 must be zero. */ if (env->regs[0] & 0xffff0000u) { - cpu_restore_state(ENV_GET_CPU(env), ra); - program_interrupt(env, PGM_SPECIFICATION, 6); + s390_program_interrupt(env, PGM_SPECIFICATION, 6, ra); } str = get_address(env, r2); @@ -1600,8 +1596,7 @@ static uint32_t do_csst(CPUS390XState *env, uint32_t r3, uint64_t a1, return cc; spec_exception: - cpu_restore_state(ENV_GET_CPU(env), ra); - program_interrupt(env, PGM_SPECIFICATION, 6); + s390_program_interrupt(env, PGM_SPECIFICATION, 6, ra); g_assert_not_reached(); } @@ -1865,8 +1860,7 @@ void HELPER(idte)(CPUS390XState *env, uint64_t r1, uint64_t r2, uint32_t m4) uint16_t entries, i, index = 0; if (r2 & 0xff000) { - cpu_restore_state(cs, ra); - program_interrupt(env, PGM_SPECIFICATION, 4); + s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra); } if (!(r2 & 0x800)) { @@ -2014,8 +2008,7 @@ uint64_t HELPER(lra)(CPUS390XState *env, uint64_t addr) /* XXX incomplete - has more corner cases */ if (!(env->psw.mask & PSW_MASK_64) && (addr >> 32)) { - cpu_restore_state(cs, GETPC()); - program_interrupt(env, PGM_SPECIAL_OP, 2); + s390_program_interrupt(env, PGM_SPECIAL_OP, 2, GETPC()); } old_exc = cs->exception_index; @@ -2185,7 +2178,6 @@ uint32_t HELPER(mvcos)(CPUS390XState *env, uint64_t dest, uint64_t src, const uint8_t psw_as = (env->psw.mask & PSW_MASK_ASC) >> PSW_SHIFT_ASC; const uint64_t r0 = env->regs[0]; const uintptr_t ra = GETPC(); - CPUState *cs = CPU(s390_env_get_cpu(env)); uint8_t dest_key, dest_as, dest_k, dest_a; uint8_t src_key, src_as, src_k, src_a; uint64_t val; @@ -2195,8 +2187,7 @@ uint32_t HELPER(mvcos)(CPUS390XState *env, uint64_t dest, uint64_t src, __func__, dest, src, len); if (!(env->psw.mask & PSW_MASK_DAT)) { - cpu_restore_state(cs, ra); - program_interrupt(env, PGM_SPECIAL_OP, 6); + s390_program_interrupt(env, PGM_SPECIAL_OP, 6, ra); } /* OAC (operand access control) for the first operand -> dest */ @@ -2227,17 +2218,14 @@ uint32_t HELPER(mvcos)(CPUS390XState *env, uint64_t dest, uint64_t src, } if (dest_a && dest_as == AS_HOME && (env->psw.mask & PSW_MASK_PSTATE)) { - cpu_restore_state(cs, ra); - program_interrupt(env, PGM_SPECIAL_OP, 6); + s390_program_interrupt(env, PGM_SPECIAL_OP, 6, ra); } if (!(env->cregs[0] & CR0_SECONDARY) && (dest_as == AS_SECONDARY || src_as == AS_SECONDARY)) { - cpu_restore_state(cs, ra); - program_interrupt(env, PGM_SPECIAL_OP, 6); + s390_program_interrupt(env, PGM_SPECIAL_OP, 6, ra); } if (!psw_key_valid(env, dest_key) || !psw_key_valid(env, src_key)) { - cpu_restore_state(cs, ra); - program_interrupt(env, PGM_PRIVILEGED, 6); + s390_program_interrupt(env, PGM_PRIVILEGED, 6, ra); } len = wrap_length(env, len); @@ -2251,8 +2239,7 @@ uint32_t HELPER(mvcos)(CPUS390XState *env, uint64_t dest, uint64_t src, (env->psw.mask & PSW_MASK_PSTATE)) { qemu_log_mask(LOG_UNIMP, "%s: AR-mode and PSTATE support missing\n", __func__); - cpu_restore_state(cs, ra); - program_interrupt(env, PGM_ADDRESSING, 6); + s390_program_interrupt(env, PGM_ADDRESSING, 6, ra); } /* FIXME: a) LAP diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c index d272851e1ca05c5748ae9f763d07..1ccbafbb7dc52361d3ef66cf3b82 100644 --- a/target/s390x/misc_helper.c +++ b/target/s390x/misc_helper.c @@ -519,8 +519,7 @@ uint32_t HELPER(stfle)(CPUS390XState *env, uint64_t addr) int i; if (addr & 0x7) { - cpu_restore_state(ENV_GET_CPU(env), ra); - program_interrupt(env, PGM_SPECIFICATION, 4); + s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra); } prepare_stfl();
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