From e7c3246162398677eb96f55f267de00809ea213d Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Thu, 12 Apr 2018 11:35:21 +0200 Subject: s390x/kvm: cleanup calls to cpu_synchronize_state() We have a call to cpu_synchronize_state() on every kvm_arch_handle_exit(). Let's remove the ones that are no longer needed. Remaining places (for s390x) are in - target/s390x/sigp.c, on the target CPU - target/s390x/cpu.c:s390_cpu_get_crash_info() While at it, use kvm_cpu_synchronize_state() instead of cpu_synchronize_state() in KVM code. (suggested by Thomas Huth) Signed-off-by: David Hildenbrand Message-Id: <20180412093521.2469-1-david@redhat.com> Acked-by: Christian Borntraeger Reviewed-by: Thomas Huth Signed-off-by: Cornelia Huck --- target/s390x/kvm.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) (limited to 'target') diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index fb59d92def..12b90cf5c5 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -1081,7 +1081,6 @@ static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, uint32_t code; int r = 0; - cpu_synchronize_state(CPU(cpu)); sccb = env->regs[ipbh0 & 0xf]; code = env->regs[(ipbh0 & 0xf0) >> 4]; @@ -1101,8 +1100,6 @@ static int handle_b2(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) int rc = 0; uint16_t ipbh0 = (run->s390_sieic.ipb & 0xffff0000) >> 16; - cpu_synchronize_state(CPU(cpu)); - switch (ipa1) { case PRIV_B2_XSCH: ioinst_handle_xsch(cpu, env->regs[1], RA_IGNORED); @@ -1248,7 +1245,6 @@ static int kvm_stpcifc_service_call(S390CPU *cpu, struct kvm_run *run) uint8_t ar; if (s390_has_feat(S390_FEAT_ZPCI)) { - cpu_synchronize_state(CPU(cpu)); fiba = get_base_disp_rxy(cpu, run, &ar); return stpcifc_service_call(cpu, r1, fiba, ar, RA_IGNORED); @@ -1266,7 +1262,6 @@ static int kvm_sic_service_call(S390CPU *cpu, struct kvm_run *run) uint16_t mode; int r; - cpu_synchronize_state(CPU(cpu)); mode = env->regs[r1] & 0xffff; isc = (env->regs[r3] >> 27) & 0x7; r = css_do_sic(env, isc, mode); @@ -1297,7 +1292,6 @@ static int kvm_pcistb_service_call(S390CPU *cpu, struct kvm_run *run) uint8_t ar; if (s390_has_feat(S390_FEAT_ZPCI)) { - cpu_synchronize_state(CPU(cpu)); gaddr = get_base_disp_rsy(cpu, run, &ar); return pcistb_service_call(cpu, r1, r3, gaddr, ar, RA_IGNORED); @@ -1313,7 +1307,6 @@ static int kvm_mpcifc_service_call(S390CPU *cpu, struct kvm_run *run) uint8_t ar; if (s390_has_feat(S390_FEAT_ZPCI)) { - cpu_synchronize_state(CPU(cpu)); fiba = get_base_disp_rxy(cpu, run, &ar); return mpcifc_service_call(cpu, r1, fiba, ar, RA_IGNORED); @@ -1401,7 +1394,6 @@ static int handle_hypercall(S390CPU *cpu, struct kvm_run *run) CPUS390XState *env = &cpu->env; int ret; - cpu_synchronize_state(CPU(cpu)); ret = s390_virtio_hypercall(env); if (ret == -EINVAL) { kvm_s390_program_interrupt(cpu, PGM_SPECIFICATION); @@ -1416,7 +1408,6 @@ static void kvm_handle_diag_288(S390CPU *cpu, struct kvm_run *run) uint64_t r1, r3; int rc; - cpu_synchronize_state(CPU(cpu)); r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; r3 = run->s390_sieic.ipa & 0x000f; rc = handle_diag_288(&cpu->env, r1, r3); @@ -1429,7 +1420,6 @@ static void kvm_handle_diag_308(S390CPU *cpu, struct kvm_run *run) { uint64_t r1, r3; - cpu_synchronize_state(CPU(cpu)); r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; r3 = run->s390_sieic.ipa & 0x000f; handle_diag_308(&cpu->env, r1, r3, RA_IGNORED); @@ -1440,8 +1430,6 @@ static int handle_sw_breakpoint(S390CPU *cpu, struct kvm_run *run) CPUS390XState *env = &cpu->env; unsigned long pc; - cpu_synchronize_state(CPU(cpu)); - pc = env->psw.addr - sw_bp_ilen; if (kvm_find_sw_breakpoint(CPU(cpu), pc)) { env->psw.addr = pc; @@ -1493,8 +1481,6 @@ static int kvm_s390_handle_sigp(S390CPU *cpu, uint8_t ipa1, uint32_t ipb) int ret; uint8_t order; - cpu_synchronize_state(CPU(cpu)); - /* get order code */ order = decode_basedisp_rs(env, ipb, NULL) & SIGP_ORDER_MASK; @@ -1556,7 +1542,6 @@ static int handle_oper_loop(S390CPU *cpu, struct kvm_run *run) CPUState *cs = CPU(cpu); PSW oldpsw, newpsw; - cpu_synchronize_state(cs); newpsw.mask = ldq_phys(cs->as, cpu->env.psa + offsetof(LowCore, program_new_psw)); newpsw.addr = ldq_phys(cs->as, cpu->env.psa + @@ -1609,7 +1594,6 @@ static int handle_intercept(S390CPU *cpu) break; case ICPT_WAITPSW: /* disabled wait, since enabled wait is handled in kernel */ - cpu_synchronize_state(cs); s390_handle_wait(cpu); r = EXCP_HALTED; break; @@ -1651,8 +1635,6 @@ static int handle_tsch(S390CPU *cpu) struct kvm_run *run = cs->kvm_run; int ret; - cpu_synchronize_state(cs); - ret = ioinst_handle_tsch(cpu, cpu->env.regs[1], run->s390_tsch.ipb, RA_IGNORED); if (ret < 0) { @@ -1778,7 +1760,7 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) qemu_mutex_lock_iothread(); - cpu_synchronize_state(cs); + kvm_cpu_synchronize_state(cs); switch (run->exit_reason) { case KVM_EXIT_S390_SIEIC: -- cgit v1.2.1