diff options
author | Peter Maydell <peter.maydell@linaro.org> | 2018-02-09 11:46:32 +0000 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2018-02-09 11:46:32 +0000 |
commit | fdcbebe4519ec76cb500ab7698c1ea7ed8ebc962 (patch) | |
tree | 0d52851d72914c7d82cc41cb01c7cac66e8d4e89 | |
parent | 04bb7fe2bf55bdf66d5b7a5a719b40bbb4048178 (diff) | |
parent | ced01bb7e5d353a9055743d68d54f3581b29328c (diff) | |
download | qemu-fdcbebe4519ec76cb500ab7698c1ea7ed8ebc962.zip qemu-fdcbebe4519ec76cb500ab7698c1ea7ed8ebc962.tar.gz qemu-fdcbebe4519ec76cb500ab7698c1ea7ed8ebc962.tar.bz2 |
Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20180209' into staging
s390x updates:
- rework interrupt handling for tcg, smp is now considered non-experimental
- some general improvements in the flic
- improvements in the pci code, and wiring it up in tcg
- add PTFF subfunctions for multiple-epoch to the cpu model
- maintainership updates
- various other fixes and improvements
# gpg: Signature made Fri 09 Feb 2018 09:04:34 GMT
# gpg: using RSA key DECF6B93C6F02FAF
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>"
# gpg: aka "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
# gpg: aka "Cornelia Huck <cohuck@kernel.org>"
# gpg: aka "Cornelia Huck <cohuck@redhat.com>"
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF
* remotes/cohuck/tags/s390x-20180209: (29 commits)
MAINTAINERS: add David as additional tcg/s390 maintainer
MAINTAINERS: reorganize s390-ccw bios maintainership
MAINTAINERS: add myself as overall s390x maintainer
s390x/pci: use the right pal and pba in reg_ioat()
s390x/pci: fixup global refresh
s390x/pci: fixup the code walking IOMMU tables
s390x/cpumodel: model PTFF subfunctions for Multiple-epoch facility
s390x/cpumodel: allow zpci features in qemu model
s390x/tcg: wire up pci instructions
s390x/sclp: fix event mask handling
s390x/flic: cache the common flic class in a central function
s390x/kvm: cache the kvm flic in a central function
s390x/tcg: cache the qemu flic in a central function
configure: s390x supports mttcg now
s390x/tcg: remove SMP warning
s390x/tcg: STSI overhaul
s390x: fix size + content of STSI blocks
s390x/flic: optimize CPU wakeup for TCG
s390x/flic: implement qemu_s390_clear_io_flic()
s390x/tcg: implement TEST PENDING INTERRUPTION
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r-- | MAINTAINERS | 35 | ||||
-rwxr-xr-x | configure | 5 | ||||
-rw-r--r-- | hw/intc/s390_flic.c | 257 | ||||
-rw-r--r-- | hw/intc/s390_flic_kvm.c | 84 | ||||
-rw-r--r-- | hw/s390x/css.c | 10 | ||||
-rw-r--r-- | hw/s390x/event-facility.c | 4 | ||||
-rw-r--r-- | hw/s390x/s390-pci-bus.c | 233 | ||||
-rw-r--r-- | hw/s390x/s390-pci-bus.h | 17 | ||||
-rw-r--r-- | hw/s390x/s390-pci-inst.c | 103 | ||||
-rw-r--r-- | hw/s390x/s390-virtio-ccw.c | 4 | ||||
-rw-r--r-- | hw/s390x/virtio-ccw.c | 4 | ||||
-rw-r--r-- | include/hw/s390x/s390_flic.h | 57 | ||||
-rw-r--r-- | target/s390x/cpu.c | 10 | ||||
-rw-r--r-- | target/s390x/cpu.h | 99 | ||||
-rw-r--r-- | target/s390x/cpu_features.c | 5 | ||||
-rw-r--r-- | target/s390x/cpu_features_def.h | 4 | ||||
-rw-r--r-- | target/s390x/cpu_models.c | 6 | ||||
-rw-r--r-- | target/s390x/excp_helper.c | 147 | ||||
-rw-r--r-- | target/s390x/gen-features.c | 17 | ||||
-rw-r--r-- | target/s390x/helper.h | 10 | ||||
-rw-r--r-- | target/s390x/insn-data.def | 14 | ||||
-rw-r--r-- | target/s390x/internal.h | 5 | ||||
-rw-r--r-- | target/s390x/interrupt.c | 100 | ||||
-rw-r--r-- | target/s390x/kvm-stub.c | 13 | ||||
-rw-r--r-- | target/s390x/kvm.c | 78 | ||||
-rw-r--r-- | target/s390x/kvm_s390x.h | 10 | ||||
-rw-r--r-- | target/s390x/misc_helper.c | 355 | ||||
-rw-r--r-- | target/s390x/translate.c | 110 |
28 files changed, 1244 insertions, 552 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 301b699..54feb95 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -76,6 +76,29 @@ K: ^Subject:.*(?i)trivial T: git git://git.corpit.ru/qemu.git trivial-patches T: git git://github.com/vivier/qemu.git trivial-patches +Architecture support +-------------------- +S390 +M: Cornelia Huck <cohuck@redhat.com> +S: Supported +F: default-configs/s390x-softmmu.mak +F: gdb-xml/s390*.xml +F: hw/char/sclp*.[hc] +F: hw/char/terminal3270.c +F: hw/intc/s390_flic.c +F: hw/intc/s390_flic_kvm.c +F: hw/s390x/ +F: hw/vfio/ccw.c +F: hw/watchdog/wdt_diag288.c +F: include/hw/s390x/ +F: include/hw/watchdog/wdt_diag288.h +F: pc-bios/s390-ccw/ +F: pc-bios/s390-ccw.img +F: target/s390x/ +K: ^Subject:.*(?i)s390x? +T: git git://github.com/cohuck/qemu.git s390-next +L: qemu-s390x@nongnu.org + Guest CPU cores (TCG): ---------------------- Overall @@ -213,6 +236,7 @@ F: disas/ppc.c S390 M: Richard Henderson <rth@twiddle.net> M: Alexander Graf <agraf@suse.de> +M: David Hildenbrand <david@redhat.com> S: Maintained F: target/s390x/ F: hw/s390x/ @@ -832,15 +856,22 @@ F: hw/char/sclp*.[hc] F: hw/char/terminal3270.c F: hw/s390x/ F: include/hw/s390x/ -F: pc-bios/s390-ccw/ F: hw/watchdog/wdt_diag288.c F: include/hw/watchdog/wdt_diag288.h -F: pc-bios/s390-ccw.img F: default-configs/s390x-softmmu.mak T: git git://github.com/cohuck/qemu.git s390-next T: git git://github.com/borntraeger/qemu.git s390-next L: qemu-s390x@nongnu.org +S390-ccw Bios +M: Christian Borntraeger <borntraeger@de.ibm.com> +M: Thomas Huth <thuth@redhat.com> +S: Supported +F: pc-bios/s390-ccw/ +F: pc-bios/s390-ccw.img +T: git git://github.com/borntraeger/qemu.git s390-next +L: qemu-s390x@nongnu.org + UniCore32 Machines ------------- PKUnity-3 SoC initramfs-with-busybox @@ -1933,9 +1933,9 @@ int main(int argc, char *argv[]) { EOF if compile_object ; then - if grep -q BiGeNdIaN $TMPO ; then + if strings -a $TMPO | grep -q BiGeNdIaN ; then bigendian="yes" - elif grep -q LiTtLeEnDiAn $TMPO ; then + elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then bigendian="no" else echo big/little test failed @@ -6779,6 +6779,7 @@ case "$target_name" in echo "TARGET_ABI32=y" >> $config_target_mak ;; s390x) + mttcg=yes gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml" ;; tilegx) diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c index 6eaf178..a85a149 100644 --- a/hw/intc/s390_flic.c +++ b/hw/intc/s390_flic.c @@ -22,16 +22,36 @@ #include "qapi/error.h" #include "hw/s390x/s390-virtio-ccw.h" +S390FLICStateClass *s390_get_flic_class(S390FLICState *fs) +{ + static S390FLICStateClass *class; + + if (!class) { + /* we only have one flic device, so this is fine to cache */ + class = S390_FLIC_COMMON_GET_CLASS(fs); + } + return class; +} + +QEMUS390FLICState *s390_get_qemu_flic(S390FLICState *fs) +{ + static QEMUS390FLICState *flic; + + if (!flic) { + /* we only have one flic device, so this is fine to cache */ + flic = QEMU_S390_FLIC(fs); + } + return flic; +} + S390FLICState *s390_get_flic(void) { static S390FLICState *fs; if (!fs) { - fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); - if (!fs) { - fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, - NULL)); - } + fs = S390_FLIC_COMMON(object_resolve_path_type("", + TYPE_S390_FLIC_COMMON, + NULL)); } return fs; } @@ -40,8 +60,11 @@ void s390_flic_init(void) { DeviceState *dev; - dev = s390_flic_kvm_create(); - if (!dev) { + if (kvm_enabled()) { + dev = qdev_create(NULL, TYPE_KVM_S390_FLIC); + object_property_add_child(qdev_get_machine(), TYPE_KVM_S390_FLIC, + OBJECT(dev), NULL); + } else { dev = qdev_create(NULL, TYPE_QEMU_S390_FLIC); object_property_add_child(qdev_get_machine(), TYPE_QEMU_S390_FLIC, OBJECT(dev), NULL); @@ -78,14 +101,41 @@ static void qemu_s390_release_adapter_routes(S390FLICState *fs, static int qemu_s390_clear_io_flic(S390FLICState *fs, uint16_t subchannel_id, uint16_t subchannel_nr) { - /* Fixme TCG */ - return -ENOSYS; + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); + QEMUS390FlicIO *cur, *next; + uint8_t isc; + + g_assert(qemu_mutex_iothread_locked()); + if (!(flic->pending & FLIC_PENDING_IO)) { + return 0; + } + + /* check all iscs */ + for (isc = 0; isc < 8; isc++) { + if (QLIST_EMPTY(&flic->io[isc])) { + continue; + } + + /* search and delete any matching one */ + QLIST_FOREACH_SAFE(cur, &flic->io[isc], next, next) { + if (cur->id == subchannel_id && cur->nr == subchannel_nr) { + QLIST_REMOVE(cur, next); + g_free(cur); + } + } + + /* update our indicator bit */ + if (QLIST_EMPTY(&flic->io[isc])) { + flic->pending &= ~ISC_TO_PENDING_IO(isc); + } + } + return 0; } static int qemu_s390_modify_ais_mode(S390FLICState *fs, uint8_t isc, uint16_t mode) { - QEMUS390FLICState *flic = QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); switch (mode) { case SIC_IRQ_MODE_ALL: @@ -106,7 +156,8 @@ static int qemu_s390_modify_ais_mode(S390FLICState *fs, uint8_t isc, static int qemu_s390_inject_airq(S390FLICState *fs, uint8_t type, uint8_t isc, uint8_t flags) { - QEMUS390FLICState *flic = QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); + S390FLICStateClass *fsc = s390_get_flic_class(fs); bool flag = flags & S390_ADAPTER_SUPPRESSIBLE; uint32_t io_int_word = (isc << 27) | IO_INT_WORD_AI; @@ -115,7 +166,7 @@ static int qemu_s390_inject_airq(S390FLICState *fs, uint8_t type, return 0; } - s390_io_interrupt(0, 0, 0, io_int_word); + fsc->inject_io(fs, 0, 0, 0, io_int_word); if (flag && (flic->simm & AIS_MODE_MASK(isc))) { flic->nimm |= AIS_MODE_MASK(isc); @@ -126,12 +177,180 @@ static int qemu_s390_inject_airq(S390FLICState *fs, uint8_t type, return 0; } +static void qemu_s390_flic_notify(uint32_t type) +{ + CPUState *cs; + + /* + * We have to make all CPUs see CPU_INTERRUPT_HARD, so they might + * consider it. We will kick all running CPUs and only relevant + * sleeping ones. + */ + CPU_FOREACH(cs) { + S390CPU *cpu = S390_CPU(cs); + + cs->interrupt_request |= CPU_INTERRUPT_HARD; + + /* ignore CPUs that are not sleeping */ + if (s390_cpu_get_state(cpu) != CPU_STATE_OPERATING && + s390_cpu_get_state(cpu) != CPU_STATE_LOAD) { + continue; + } + + /* we always kick running CPUs for now, this is tricky */ + if (cs->halted) { + /* don't check for subclasses, CPUs double check when waking up */ + if (type & FLIC_PENDING_SERVICE) { + if (!(cpu->env.psw.mask & PSW_MASK_EXT)) { + continue; + } + } else if (type & FLIC_PENDING_IO) { + if (!(cpu->env.psw.mask & PSW_MASK_IO)) { + continue; + } + } else if (type & FLIC_PENDING_MCHK_CR) { + if (!(cpu->env.psw.mask & PSW_MASK_MCHECK)) { + continue; + } + } + } + cpu_interrupt(cs, CPU_INTERRUPT_HARD); + } +} + +uint32_t qemu_s390_flic_dequeue_service(QEMUS390FLICState *flic) +{ + uint32_t tmp; + + g_assert(qemu_mutex_iothread_locked()); + g_assert(flic->pending & FLIC_PENDING_SERVICE); + tmp = flic->service_param; + flic->service_param = 0; + flic->pending &= ~FLIC_PENDING_SERVICE; + + return tmp; +} + +/* caller has to free the returned object */ +QEMUS390FlicIO *qemu_s390_flic_dequeue_io(QEMUS390FLICState *flic, uint64_t cr6) +{ + QEMUS390FlicIO *io; + uint8_t isc; + + g_assert(qemu_mutex_iothread_locked()); + if (!(flic->pending & CR6_TO_PENDING_IO(cr6))) { + return NULL; + } + + for (isc = 0; isc < 8; isc++) { + if (QLIST_EMPTY(&flic->io[isc]) || !(cr6 & ISC_TO_ISC_BITS(isc))) { + continue; + } + io = QLIST_FIRST(&flic->io[isc]); + QLIST_REMOVE(io, next); + + /* update our indicator bit */ + if (QLIST_EMPTY(&flic->io[isc])) { + flic->pending &= ~ISC_TO_PENDING_IO(isc); + } + return io; + } + + return NULL; +} + +void qemu_s390_flic_dequeue_crw_mchk(QEMUS390FLICState *flic) +{ + g_assert(qemu_mutex_iothread_locked()); + g_assert(flic->pending & FLIC_PENDING_MCHK_CR); + flic->pending &= ~FLIC_PENDING_MCHK_CR; +} + +static void qemu_s390_inject_service(S390FLICState *fs, uint32_t parm) +{ + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); + + g_assert(qemu_mutex_iothread_locked()); + /* multiplexing is good enough for sclp - kvm does it internally as well */ + flic->service_param |= parm; + flic->pending |= FLIC_PENDING_SERVICE; + + qemu_s390_flic_notify(FLIC_PENDING_SERVICE); +} + +static void qemu_s390_inject_io(S390FLICState *fs, uint16_t subchannel_id, + uint16_t subchannel_nr, uint32_t io_int_parm, + uint32_t io_int_word) +{ + const uint8_t isc = IO_INT_WORD_ISC(io_int_word); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); + QEMUS390FlicIO *io; + + g_assert(qemu_mutex_iothread_locked()); + io = g_new0(QEMUS390FlicIO, 1); + io->id = subchannel_id; + io->nr = subchannel_nr; + io->parm = io_int_parm; + io->word = io_int_word; + + QLIST_INSERT_HEAD(&flic->io[isc], io, next); + flic->pending |= ISC_TO_PENDING_IO(isc); + + qemu_s390_flic_notify(ISC_TO_PENDING_IO(isc)); +} + +static void qemu_s390_inject_crw_mchk(S390FLICState *fs) +{ + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); + + g_assert(qemu_mutex_iothread_locked()); + flic->pending |= FLIC_PENDING_MCHK_CR; + + qemu_s390_flic_notify(FLIC_PENDING_MCHK_CR); +} + +bool qemu_s390_flic_has_service(QEMUS390FLICState *flic) +{ + /* called without lock via cc->has_work, will be validated under lock */ + return !!(flic->pending & FLIC_PENDING_SERVICE); +} + +bool qemu_s390_flic_has_io(QEMUS390FLICState *flic, uint64_t cr6) +{ + /* called without lock via cc->has_work, will be validated under lock */ + return !!(flic->pending & CR6_TO_PENDING_IO(cr6)); +} + +bool qemu_s390_flic_has_crw_mchk(QEMUS390FLICState *flic) +{ + /* called without lock via cc->has_work, will be validated under lock */ + return !!(flic->pending & FLIC_PENDING_MCHK_CR); +} + +bool qemu_s390_flic_has_any(QEMUS390FLICState *flic) +{ + g_assert(qemu_mutex_iothread_locked()); + return !!flic->pending; +} + static void qemu_s390_flic_reset(DeviceState *dev) { QEMUS390FLICState *flic = QEMU_S390_FLIC(dev); + QEMUS390FlicIO *cur, *next; + int isc; + g_assert(qemu_mutex_iothread_locked()); flic->simm = 0; flic->nimm = 0; + flic->pending = 0; + + /* remove all pending io interrupts */ + for (isc = 0; isc < 8; isc++) { + QLIST_FOREACH_SAFE(cur, &flic->io[isc], next, next) { + QLIST_REMOVE(cur, next); + g_free(cur); + } + } } bool ais_needed(void *opaque) @@ -153,6 +372,16 @@ static const VMStateDescription qemu_s390_flic_vmstate = { } }; +static void qemu_s390_flic_instance_init(Object *obj) +{ + QEMUS390FLICState *flic = QEMU_S390_FLIC(obj); + int isc; + + for (isc = 0; isc < 8; isc++) { + QLIST_INIT(&flic->io[isc]); + } +} + static void qemu_s390_flic_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); @@ -167,6 +396,9 @@ static void qemu_s390_flic_class_init(ObjectClass *oc, void *data) fsc->clear_io_irq = qemu_s390_clear_io_flic; fsc->modify_ais_mode = qemu_s390_modify_ais_mode; fsc->inject_airq = qemu_s390_inject_airq; + fsc->inject_service = qemu_s390_inject_service; + fsc->inject_io = qemu_s390_inject_io; + fsc->inject_crw_mchk = qemu_s390_inject_crw_mchk; } static Property s390_flic_common_properties[] = { @@ -201,6 +433,7 @@ static const TypeInfo qemu_s390_flic_info = { .name = TYPE_QEMU_S390_FLIC, .parent = TYPE_S390_FLIC_COMMON, .instance_size = sizeof(QEMUS390FLICState), + .instance_init = qemu_s390_flic_instance_init, .class_init = qemu_s390_flic_class_init, }; diff --git a/hw/intc/s390_flic_kvm.c b/hw/intc/s390_flic_kvm.c index d208cb8..3f804ad 100644 --- a/hw/intc/s390_flic_kvm.c +++ b/hw/intc/s390_flic_kvm.c @@ -35,16 +35,15 @@ typedef struct KVMS390FLICState { bool clear_io_supported; } KVMS390FLICState; -DeviceState *s390_flic_kvm_create(void) +static KVMS390FLICState *s390_get_kvm_flic(S390FLICState *fs) { - DeviceState *dev = NULL; + static KVMS390FLICState *flic; - if (kvm_enabled()) { - dev = qdev_create(NULL, TYPE_KVM_S390_FLIC); - object_property_add_child(qdev_get_machine(), TYPE_KVM_S390_FLIC, - OBJECT(dev), NULL); + if (!flic) { + /* we only have one flic device, so this is fine to cache */ + flic = KVM_S390_FLIC(fs); } - return dev; + return flic; } /** @@ -123,20 +122,70 @@ static int flic_enqueue_irqs(void *buf, uint64_t len, return rc ? -errno : 0; } -int kvm_s390_inject_flic(struct kvm_s390_irq *irq) +static void kvm_s390_inject_flic(S390FLICState *fs, struct kvm_s390_irq *irq) { - static KVMS390FLICState *flic; + static bool use_flic = true; + int r; + + if (use_flic) { + r = flic_enqueue_irqs(irq, sizeof(*irq), s390_get_kvm_flic(fs)); + if (r == -ENOSYS) { + use_flic = false; + } + if (!r) { + return; + } + } + /* fallback to legacy KVM IOCTL in case FLIC fails */ + kvm_s390_floating_interrupt_legacy(irq); +} + +static void kvm_s390_inject_service(S390FLICState *fs, uint32_t parm) +{ + struct kvm_s390_irq irq = { + .type = KVM_S390_INT_SERVICE, + .u.ext.ext_params = parm, + }; + + kvm_s390_inject_flic(fs, &irq); +} - if (unlikely(!flic)) { - flic = KVM_S390_FLIC(s390_get_flic()); +static void kvm_s390_inject_io(S390FLICState *fs, uint16_t subchannel_id, + uint16_t subchannel_nr, uint32_t io_int_parm, + uint32_t io_int_word) +{ + struct kvm_s390_irq irq = { + .u.io.subchannel_id = subchannel_id, + .u.io.subchannel_nr = subchannel_nr, + .u.io.io_int_parm = io_int_parm, + .u.io.io_int_word = io_int_word, + }; + + if (io_int_word & IO_INT_WORD_AI) { + irq.type = KVM_S390_INT_IO(1, 0, 0, 0); + } else { + irq.type = KVM_S390_INT_IO(0, (subchannel_id & 0xff00) >> 8, + (subchannel_id & 0x0006), + subchannel_nr); } - return flic_enqueue_irqs(irq, sizeof(*irq), flic); + kvm_s390_inject_flic(fs, &irq); +} + +static void kvm_s390_inject_crw_mchk(S390FLICState *fs) +{ + struct kvm_s390_irq irq = { + .type = KVM_S390_MCHK, + .u.mchk.cr14 = CR14_CHANNEL_REPORT_SC, + .u.mchk.mcic = s390_build_validity_mcic() | MCIC_SC_CP, + }; + + kvm_s390_inject_flic(fs, &irq); } static int kvm_s390_clear_io_flic(S390FLICState *fs, uint16_t subchannel_id, uint16_t subchannel_nr) { - KVMS390FLICState *flic = KVM_S390_FLIC(fs); + KVMS390FLICState *flic = s390_get_kvm_flic(fs); int rc; uint32_t sid = subchannel_id << 16 | subchannel_nr; struct kvm_device_attr attr = { @@ -154,7 +203,7 @@ static int kvm_s390_clear_io_flic(S390FLICState *fs, uint16_t subchannel_id, static int kvm_s390_modify_ais_mode(S390FLICState *fs, uint8_t isc, uint16_t mode) { - KVMS390FLICState *flic = KVM_S390_FLIC(fs); + KVMS390FLICState *flic = s390_get_kvm_flic(fs); struct kvm_s390_ais_req req = { .isc = isc, .mode = mode, @@ -174,7 +223,7 @@ static int kvm_s390_modify_ais_mode(S390FLICState *fs, uint8_t isc, static int kvm_s390_inject_airq(S390FLICState *fs, uint8_t type, uint8_t isc, uint8_t flags) { - KVMS390FLICState *flic = KVM_S390_FLIC(fs); + KVMS390FLICState *flic = s390_get_kvm_flic(fs); uint32_t id = css_get_adapter_id(type, isc); struct kvm_device_attr attr = { .group = KVM_DEV_FLIC_AIRQ_INJECT, @@ -263,7 +312,7 @@ static int kvm_s390_io_adapter_map(S390FLICState *fs, uint32_t id, .group = KVM_DEV_FLIC_ADAPTER_MODIFY, .addr = (uint64_t)&req, }; - KVMS390FLICState *flic = KVM_S390_FLIC(fs); + KVMS390FLICState *flic = s390_get_kvm_flic(fs); int r; if (!kvm_gsi_routing_enabled()) { @@ -614,6 +663,9 @@ static void kvm_s390_flic_class_init(ObjectClass *oc, void *data) fsc->clear_io_irq = kvm_s390_clear_io_flic; fsc->modify_ais_mode = kvm_s390_modify_ais_mode; fsc->inject_airq = kvm_s390_inject_airq; + fsc->inject_service = kvm_s390_inject_service; + fsc->inject_io = kvm_s390_inject_io; + fsc->inject_crw_mchk = kvm_s390_inject_crw_mchk; } static const TypeInfo kvm_s390_flic_info = { diff --git a/hw/s390x/css.c b/hw/s390x/css.c index 1c526fd..301bf17 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -439,7 +439,7 @@ static int s390_io_adapter_map(AdapterInfo *adapter, uint64_t map_addr, bool do_map) { S390FLICState *fs = s390_get_flic(); - S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + S390FLICStateClass *fsc = s390_get_flic_class(fs); return fsc->io_adapter_map(fs, adapter->adapter_id, map_addr, do_map); } @@ -520,7 +520,7 @@ void css_register_io_adapters(CssIoAdapterType type, bool swap, bool maskable, int ret, isc; IoAdapter *adapter; S390FLICState *fs = s390_get_flic(); - S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + S390FLICStateClass *fsc = s390_get_flic_class(fs); /* * Disallow multiple registrations for the same device type. @@ -566,7 +566,7 @@ static void css_clear_io_interrupt(uint16_t subchannel_id, Error *err = NULL; static bool no_clear_irq; S390FLICState *fs = s390_get_flic(); - S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + S390FLICStateClass *fsc = s390_get_flic_class(fs); int r; if (unlikely(no_clear_irq)) { @@ -640,7 +640,7 @@ void css_conditional_io_interrupt(SubchDev *sch) int css_do_sic(CPUS390XState *env, uint8_t isc, uint16_t mode) { S390FLICState *fs = s390_get_flic(); - S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + S390FLICStateClass *fsc = s390_get_flic_class(fs); int r; if (env->psw.mask & PSW_MASK_PSTATE) { @@ -666,7 +666,7 @@ out: void css_adapter_interrupt(CssIoAdapterType type, uint8_t isc) { S390FLICState *fs = s390_get_flic(); - S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + S390FLICStateClass *fsc = s390_get_flic_class(fs); uint32_t io_int_word = (isc << 27) | IO_INT_WORD_AI; IoAdapter *adapter = channel_subsys.io_adapters[type][isc]; diff --git a/hw/s390x/event-facility.c b/hw/s390x/event-facility.c index b0f71f4..155a694 100644 --- a/hw/s390x/event-facility.c +++ b/hw/s390x/event-facility.c @@ -293,10 +293,10 @@ static void write_event_mask(SCLPEventFacility *ef, SCCB *sccb) ef->receive_mask = be32_to_cpu(tmp_mask); /* return the SCLP's capability masks to the guest */ - tmp_mask = cpu_to_be32(get_host_send_mask(ef)); + tmp_mask = cpu_to_be32(get_host_receive_mask(ef)); copy_mask(WEM_RECEIVE_MASK(we_mask, mask_length), (uint8_t *)&tmp_mask, mask_length, sizeof(tmp_mask)); - tmp_mask = cpu_to_be32(get_host_receive_mask(ef)); + tmp_mask = cpu_to_be32(get_host_send_mask(ef)); copy_mask(WEM_SEND_MASK(we_mask, mask_length), (uint8_t *)&tmp_mask, mask_length, sizeof(tmp_mask)); diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 7d9c65e..77a50ca 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -309,49 +309,187 @@ static uint64_t get_st_pto(uint64_t entry) : 0; } -static uint64_t s390_guest_io_table_walk(uint64_t guest_iota, - uint64_t guest_dma_address) +static bool rt_entry_isvalid(uint64_t entry) { - uint64_t sto_a, pto_a, px_a; - uint64_t sto, pto, pte; - uint32_t rtx, sx, px; - - rtx = calc_rtx(guest_dma_address); - sx = calc_sx(guest_dma_address); - px = calc_px(guest_dma_address); - - sto_a = guest_iota + rtx * sizeof(uint64_t); - sto = address_space_ldq(&address_space_memory, sto_a, - MEMTXATTRS_UNSPECIFIED, NULL); - sto = get_rt_sto(sto); - if (!sto) { - pte = 0; + return (entry & ZPCI_TABLE_VALID_MASK) == ZPCI_TABLE_VALID; +} + +static bool pt_entry_isvalid(uint64_t entry) +{ + return (entry & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_VALID; +} + +static bool entry_isprotected(uint64_t entry) +{ + return (entry & ZPCI_TABLE_PROT_MASK) == ZPCI_TABLE_PROTECTED; +} + +/* ett is expected table type, -1 page table, 0 segment table, 1 region table */ +static uint64_t get_table_index(uint64_t iova, int8_t ett) +{ + switch (ett) { + case ZPCI_ETT_PT: + return calc_px(iova); + case ZPCI_ETT_ST: + return calc_sx(iova); + case ZPCI_ETT_RT: + return calc_rtx(iova); + } + + return -1; +} + +static bool entry_isvalid(uint64_t entry, int8_t ett) +{ + switch (ett) { + case ZPCI_ETT_PT: + return pt_entry_isvalid(entry); + case ZPCI_ETT_ST: + case ZPCI_ETT_RT: + return rt_entry_isvalid(entry); + } + + return false; +} + +/* Return true if address translation is done */ +static bool translate_iscomplete(uint64_t entry, int8_t ett) +{ + switch (ett) { + case 0: + return (entry & ZPCI_TABLE_FC) ? true : false; + case 1: + return false; + } + + return true; +} + +static uint64_t get_frame_size(int8_t ett) +{ + switch (ett) { + case ZPCI_ETT_PT: + return 1ULL << 12; + case ZPCI_ETT_ST: + return 1ULL << 20; + case ZPCI_ETT_RT: + return 1ULL << 31; + } + + return 0; +} + +static uint64_t get_next_table_origin(uint64_t entry, int8_t ett) +{ + switch (ett) { + case ZPCI_ETT_PT: + return entry & ZPCI_PTE_ADDR_MASK; + case ZPCI_ETT_ST: + return get_st_pto(entry); + case ZPCI_ETT_RT: + return get_rt_sto(entry); + } + + return 0; +} + +/** + * table_translate: do translation within one table and return the following + * table origin + * + * @entry: the entry being translated, the result is stored in this. + * @to: the address of table origin. + * @ett: expected table type, 1 region table, 0 segment table and -1 page table. + * @error: error code + */ +static uint64_t table_translate(S390IOTLBEntry *entry, uint64_t to, int8_t ett, + uint16_t *error) +{ + uint64_t tx, te, nto = 0; + uint16_t err = 0; + + tx = get_table_index(entry->iova, ett); + te = address_space_ldq(&address_space_memory, to + tx * sizeof(uint64_t), + MEMTXATTRS_UNSPECIFIED, NULL); + + if (!te) { + err = ERR_EVENT_INVALTE; + goto out; + } + + if (!entry_isvalid(te, ett)) { + entry->perm &= IOMMU_NONE; + goto out; + } + + if (ett == ZPCI_ETT_RT && ((te & ZPCI_TABLE_LEN_RTX) != ZPCI_TABLE_LEN_RTX + || te & ZPCI_TABLE_OFFSET_MASK)) { + err = ERR_EVENT_INVALTL; goto out; } - pto_a = sto + sx * sizeof(uint64_t); - pto = address_space_ldq(&address_space_memory, pto_a, - MEMTXATTRS_UNSPECIFIED, NULL); - pto = get_st_pto(pto); - if (!pto) { - pte = 0; + nto = get_next_table_origin(te, ett); + if (!nto) { + err = ERR_EVENT_TT; goto out; } - px_a = pto + px * sizeof(uint64_t); - pte = address_space_ldq(&address_space_memory, px_a, - MEMTXATTRS_UNSPECIFIED, NULL); + if (entry_isprotected(te)) { + entry->perm &= IOMMU_RO; + } else { + entry->perm &= IOMMU_RW; + } + if (translate_iscomplete(te, ett)) { + switch (ett) { + case ZPCI_ETT_PT: + entry->translated_addr = te & ZPCI_PTE_ADDR_MASK; + break; + case ZPCI_ETT_ST: + entry->translated_addr = (te & ZPCI_SFAA_MASK) | + (entry->iova & ~ZPCI_SFAA_MASK); + break; + } + nto = 0; + } out: - return pte; + if (err) { + entry->perm = IOMMU_NONE; + *error = err; + } + entry->len = get_frame_size(ett); + return nto; +} + +uint16_t s390_guest_io_table_walk(uint64_t g_iota, hwaddr addr, + S390IOTLBEntry *entry) +{ + uint64_t to = s390_pci_get_table_origin(g_iota); + int8_t ett = 1; + uint16_t error = 0; + + entry->iova = addr & PAGE_MASK; + entry->translated_addr = 0; + entry->perm = IOMMU_RW; + + if (entry_isprotected(g_iota)) { + entry->perm &= IOMMU_RO; + } + + while (to) { + to = table_translate(entry, to, ett--, &error); + } + + return error; } static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr, IOMMUAccessFlags flag) { - uint64_t pte; - uint32_t flags; S390PCIIOMMU *iommu = container_of(mr, S390PCIIOMMU, iommu_mr); + S390IOTLBEntry *entry; + uint64_t iova = addr & PAGE_MASK; + uint16_t error = 0; IOMMUTLBEntry ret = { .target_as = &address_space_memory, .iova = 0, @@ -374,26 +512,31 @@ static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr, DPRINTF("iommu trans addr 0x%" PRIx64 "\n", addr); if (addr < iommu->pba || addr > iommu->pal) { - return ret; + error = ERR_EVENT_OORANGE; + goto err; } - pte = s390_guest_io_table_walk(s390_pci_get_table_origin(iommu->g_iota), - addr); - if (!pte) { - return ret; - } - - flags = pte & ZPCI_PTE_FLAG_MASK; - ret.iova = addr; - ret.translated_addr = pte & ZPCI_PTE_ADDR_MASK; - ret.addr_mask = 0xfff; - - if (flags & ZPCI_PTE_INVALID) { - ret.perm = IOMMU_NONE; + entry = g_hash_table_lookup(iommu->iotlb, &iova); + if (entry) { + ret.iova = entry->iova; + ret.translated_addr = entry->translated_addr; + ret.addr_mask = entry->len - 1; + ret.perm = entry->perm; } else { - ret.perm = IOMMU_RW; + ret.iova = iova; + ret.addr_mask = ~PAGE_MASK; + ret.perm = IOMMU_NONE; } + if (flag != IOMMU_NONE && !(flag & ret.perm)) { + error = ERR_EVENT_TPROTE; + } +err: + if (error) { + iommu->pbdev->state = ZPCI_FS_ERROR; + s390_pci_generate_error_event(error, iommu->pbdev->fh, + iommu->pbdev->fid, addr, 0); + } return ret; } @@ -435,6 +578,8 @@ static S390PCIIOMMU *s390_pci_get_iommu(S390pciState *s, PCIBus *bus, PCI_FUNC(devfn)); memory_region_init(&iommu->mr, OBJECT(iommu), mr_name, UINT64_MAX); address_space_init(&iommu->as, &iommu->mr, as_name); + iommu->iotlb = g_hash_table_new_full(g_int64_hash, g_int64_equal, + NULL, g_free); table->iommu[PCI_SLOT(devfn)] = iommu; g_free(mr_name); @@ -524,6 +669,7 @@ void s390_pci_iommu_enable(S390PCIIOMMU *iommu) void s390_pci_iommu_disable(S390PCIIOMMU *iommu) { iommu->enabled = false; + g_hash_table_remove_all(iommu->iotlb); memory_region_del_subregion(&iommu->mr, MEMORY_REGION(&iommu->iommu_mr)); object_unparent(OBJECT(&iommu->iommu_mr)); } @@ -539,6 +685,7 @@ static void s390_pci_iommu_free(S390pciState *s, PCIBus *bus, int32_t devfn) } table->iommu[PCI_SLOT(devfn)] = NULL; + g_hash_table_destroy(iommu->iotlb); address_space_destroy(&iommu->as); object_unparent(OBJECT(&iommu->mr)); object_unparent(OBJECT(iommu)); diff --git a/hw/s390x/s390-pci-bus.h b/hw/s390x/s390-pci-bus.h index 2993f0d..1f7f9b5 100644 --- a/hw/s390x/s390-pci-bus.h +++ b/hw/s390x/s390-pci-bus.h @@ -148,6 +148,8 @@ enum ZpciIoatDtype { #define ZPCI_STE_FLAG_MASK 0x7ffULL #define ZPCI_STE_ADDR_MASK (~ZPCI_STE_FLAG_MASK) +#define ZPCI_SFAA_MASK (~((1ULL << 20) - 1)) + /* I/O Page tables */ #define ZPCI_PTE_VALID_MASK 0x400 #define ZPCI_PTE_INVALID 0x400 @@ -165,10 +167,15 @@ enum ZpciIoatDtype { #define ZPCI_TABLE_INVALID 0x20 #define ZPCI_TABLE_PROTECTED 0x200 #define ZPCI_TABLE_UNPROTECTED 0x000 +#define ZPCI_TABLE_FC 0x400 #define ZPCI_TABLE_VALID_MASK 0x20 #define ZPCI_TABLE_PROT_MASK 0x200 +#define ZPCI_ETT_RT 1 +#define ZPCI_ETT_ST 0 +#define ZPCI_ETT_PT -1 + /* PCI Function States * * reserved: default; device has just been plugged or is in progress of being @@ -253,6 +260,13 @@ typedef struct S390MsixInfo { uint32_t pba_offset; } S390MsixInfo; +typedef struct S390IOTLBEntry { + uint64_t iova; + uint64_t translated_addr; + uint64_t len; + uint64_t perm; +} S390IOTLBEntry; + typedef struct S390PCIBusDevice S390PCIBusDevice; typedef struct S390PCIIOMMU { Object parent_obj; @@ -264,6 +278,7 @@ typedef struct S390PCIIOMMU { uint64_t g_iota; uint64_t pba; uint64_t pal; + GHashTable *iotlb; } S390PCIIOMMU; typedef struct S390PCIIOMMUTable { @@ -320,6 +335,8 @@ void s390_pci_iommu_enable(S390PCIIOMMU *iommu); void s390_pci_iommu_disable(S390PCIIOMMU *iommu); void s390_pci_generate_error_event(uint16_t pec, uint32_t fh, uint32_t fid, uint64_t faddr, uint32_t e); +uint16_t s390_guest_io_table_walk(uint64_t g_iota, hwaddr addr, + S390IOTLBEntry *entry); S390PCIBusDevice *s390_pci_find_dev_by_idx(S390pciState *s, uint32_t idx); S390PCIBusDevice *s390_pci_find_dev_by_fh(S390pciState *s, uint32_t fh); S390PCIBusDevice *s390_pci_find_dev_by_fid(S390pciState *s, uint32_t fid); diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c index be44921..3fcc330 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -571,27 +571,65 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) return 0; } +static void s390_pci_update_iotlb(S390PCIIOMMU *iommu, S390IOTLBEntry *entry) +{ + S390IOTLBEntry *cache = g_hash_table_lookup(iommu->iotlb, &entry->iova); + IOMMUTLBEntry notify = { + .target_as = &address_space_memory, + .iova = entry->iova, + .translated_addr = entry->translated_addr, + .perm = entry->perm, + .addr_mask = ~PAGE_MASK, + }; + + if (entry->perm == IOMMU_NONE) { + if (!cache) { + return; + } + g_hash_table_remove(iommu->iotlb, &entry->iova); + } else { + if (cache) { + if (cache->perm == entry->perm && + cache->translated_addr == entry->translated_addr) { + return; + } + + notify.perm = IOMMU_NONE; + memory_region_notify_iommu(&iommu->iommu_mr, notify); + notify.perm = entry->perm; + } + + cache = g_new(S390IOTLBEntry, 1); + cache->iova = entry->iova; + cache->translated_addr = entry->translated_addr; + cache->len = PAGE_SIZE; + cache->perm = entry->perm; + g_hash_table_replace(iommu->iotlb, &cache->iova, cache); + } + + memory_region_notify_iommu(&iommu->iommu_mr, notify); +} + int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) { CPUS390XState *env = &cpu->env; uint32_t fh; + uint16_t error = 0; S390PCIBusDevice *pbdev; S390PCIIOMMU *iommu; + S390IOTLBEntry entry; hwaddr start, end; - IOMMUTLBEntry entry; - IOMMUMemoryRegion *iommu_mr; - IOMMUMemoryRegionClass *imrc; cpu_synchronize_state(CPU(cpu)); if (env->psw.mask & PSW_MASK_PSTATE) { s390_program_interrupt(env, PGM_PRIVILEGED, 4, ra); - goto out; + return 0; } if (r2 & 0x1) { s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra); - goto out; + return 0; } fh = env->regs[r1] >> 32; @@ -602,7 +640,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) if (!pbdev) { DPRINTF("rpcit no pci dev\n"); setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); - goto out; + return 0; } switch (pbdev->state) { @@ -622,44 +660,37 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2, uintptr_t ra) iommu = pbdev->iommu; if (!iommu->g_iota) { - pbdev->state = ZPCI_FS_ERROR; - setcc(cpu, ZPCI_PCI_LS_ERR); - s390_set_status_code(env, r1, ZPCI_PCI_ST_INSUF_RES); - s390_pci_generate_error_event(ERR_EVENT_INVALAS, pbdev->fh, pbdev->fid, - start, 0); - goto out; + error = ERR_EVENT_INVALAS; + goto err; } if (end < iommu->pba || start > iommu->pal) { - pbdev->state = ZPCI_FS_ERROR; - setcc(cpu, ZPCI_PCI_LS_ERR); - s390_set_status_code(env, r1, ZPCI_PCI_ST_INSUF_RES); - s390_pci_generate_error_event(ERR_EVENT_OORANGE, pbdev->fh, pbdev->fid, - start, 0); - goto out; + error = ERR_EVENT_OORANGE; + goto err; } - iommu_mr = &iommu->iommu_mr; - imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); - while (start < end) { - entry = imrc->translate(iommu_mr, start, IOMMU_NONE); - - if (!entry.translated_addr) { - pbdev->state = ZPCI_FS_ERROR; - setcc(cpu, ZPCI_PCI_LS_ERR); - s390_set_status_code(env, r1, ZPCI_PCI_ST_INSUF_RES); - s390_pci_generate_error_event(ERR_EVENT_SERR, pbdev->fh, pbdev->fid, - start, ERR_EVENT_Q_BIT); - goto out; + error = s390_guest_io_table_walk(iommu->g_iota, start, &entry); + if (error) { + break; } - memory_region_notify_iommu(iommu_mr, entry); - start += entry.addr_mask + 1; + start += entry.len; + while (entry.iova < start && entry.iova < end) { + s390_pci_update_iotlb(iommu, &entry); + entry.iova += PAGE_SIZE; + entry.translated_addr += PAGE_SIZE; + } + } +err: + if (error) { + pbdev->state = ZPCI_FS_ERROR; + setcc(cpu, ZPCI_PCI_LS_ERR); + s390_set_status_code(env, r1, ZPCI_PCI_ST_FUNC_IN_ERR); + s390_pci_generate_error_event(error, pbdev->fh, pbdev->fid, start, 0); + } else { + setcc(cpu, ZPCI_PCI_LS_OK); } - - setcc(cpu, ZPCI_PCI_LS_OK); -out: return 0; } @@ -834,6 +865,8 @@ static int reg_ioat(CPUS390XState *env, S390PCIIOMMU *iommu, ZpciFib fib, uint8_t dt = (g_iota >> 2) & 0x7; uint8_t t = (g_iota >> 11) & 0x1; + pba &= ~0xfff; + pal |= 0xfff; if (pba > pal || pba < ZPCI_SDMA_ADDR || pal > ZPCI_EDMA_ADDR) { s390_program_interrupt(env, PGM_OPERAND, 6, ra); return -EINVAL; diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index 3807dcb..2af3b3d 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -78,10 +78,6 @@ static void s390_init_cpus(MachineState *machine) MachineClass *mc = MACHINE_GET_CLASS(machine); int i; - if (tcg_enabled() && max_cpus > 1) { - error_report("WARNING: SMP support on s390x is experimental!"); - } - /* initialize possible_cpus */ mc->possible_cpu_arch_ids(machine); diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index 3d8f269..8f7fbc2 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -1111,7 +1111,7 @@ static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); int ret; S390FLICState *fs = s390_get_flic(); - S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + S390FLICStateClass *fsc = s390_get_flic_class(fs); ret = virtio_ccw_get_mappings(dev); if (ret) { @@ -1129,7 +1129,7 @@ static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) { S390FLICState *fs = s390_get_flic(); - S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + S390FLICStateClass *fsc = s390_get_flic_class(fs); fsc->release_adapter_routes(fs, &dev->routes); } diff --git a/include/hw/s390x/s390_flic.h b/include/hw/s390x/s390_flic.h index 7aab6ef..4687ecf 100644 --- a/include/hw/s390x/s390_flic.h +++ b/include/hw/s390x/s390_flic.h @@ -16,6 +16,7 @@ #include "hw/sysbus.h" #include "hw/s390x/adapter.h" #include "hw/virtio/virtio.h" +#include "qemu/queue.h" /* * Reserve enough gsis to accommodate all virtio devices. @@ -66,6 +67,11 @@ typedef struct S390FLICStateClass { int (*modify_ais_mode)(S390FLICState *fs, uint8_t isc, uint16_t mode); int (*inject_airq)(S390FLICState *fs, uint8_t type, uint8_t isc, uint8_t flags); + void (*inject_service)(S390FLICState *fs, uint32_t parm); + void (*inject_io)(S390FLICState *fs, uint16_t subchannel_id, + uint16_t subchannel_nr, uint32_t io_int_parm, + uint32_t io_int_word); + void (*inject_crw_mchk)(S390FLICState *fs); } S390FLICStateClass; #define TYPE_KVM_S390_FLIC "s390-flic-kvm" @@ -80,24 +86,57 @@ typedef struct S390FLICStateClass { #define SIC_IRQ_MODE_SINGLE 1 #define AIS_MODE_MASK(isc) (0x80 >> isc) +#define ISC_TO_PENDING_IO(_isc) (0x80 >> (_isc)) +#define CR6_TO_PENDING_IO(_cr6) (((_cr6) >> 24) & 0xff) + +/* organize the ISC bits so that the macros above work */ +#define FLIC_PENDING_IO_ISC7 (1 << 0) +#define FLIC_PENDING_IO_ISC6 (1 << 1) +#define FLIC_PENDING_IO_ISC5 (1 << 2) +#define FLIC_PENDING_IO_ISC4 (1 << 3) +#define FLIC_PENDING_IO_ISC3 (1 << 4) +#define FLIC_PENDING_IO_ISC2 (1 << 5) +#define FLIC_PENDING_IO_ISC1 (1 << 6) +#define FLIC_PENDING_IO_ISC0 (1 << 7) +#define FLIC_PENDING_SERVICE (1 << 8) +#define FLIC_PENDING_MCHK_CR (1 << 9) + +#define FLIC_PENDING_IO (FLIC_PENDING_IO_ISC0 | FLIC_PENDING_IO_ISC1 | \ + FLIC_PENDING_IO_ISC2 | FLIC_PENDING_IO_ISC3 | \ + FLIC_PENDING_IO_ISC4 | FLIC_PENDING_IO_ISC5 | \ + FLIC_PENDING_IO_ISC6 | FLIC_PENDING_IO_ISC7) + +typedef struct QEMUS390FlicIO { + uint16_t id; + uint16_t nr; + uint32_t parm; + uint32_t word; + QLIST_ENTRY(QEMUS390FlicIO) next; +} QEMUS390FlicIO; + typedef struct QEMUS390FLICState { S390FLICState parent_obj; + uint32_t pending; + uint32_t service_param; uint8_t simm; uint8_t nimm; + QLIST_HEAD(, QEMUS390FlicIO) io[8]; } QEMUS390FLICState; +uint32_t qemu_s390_flic_dequeue_service(QEMUS390FLICState *flic); +QEMUS390FlicIO *qemu_s390_flic_dequeue_io(QEMUS390FLICState *flic, + uint64_t cr6); +void qemu_s390_flic_dequeue_crw_mchk(QEMUS390FLICState *flic); +bool qemu_s390_flic_has_service(QEMUS390FLICState *flic); +bool qemu_s390_flic_has_io(QEMUS390FLICState *fs, uint64_t cr6); +bool qemu_s390_flic_has_crw_mchk(QEMUS390FLICState *flic); +bool qemu_s390_flic_has_any(QEMUS390FLICState *flic); + void s390_flic_init(void); S390FLICState *s390_get_flic(void); +QEMUS390FLICState *s390_get_qemu_flic(S390FLICState *fs); +S390FLICStateClass *s390_get_flic_class(S390FLICState *fs); bool ais_needed(void *opaque); -#ifdef CONFIG_KVM -DeviceState *s390_flic_kvm_create(void); -#else -static inline DeviceState *s390_flic_kvm_create(void) -{ - return NULL; -} -#endif - #endif /* HW_S390_FLIC_H */ diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index 979469d..da7cb9c 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -100,7 +100,6 @@ static void s390_cpu_initial_reset(CPUState *s) { S390CPU *cpu = S390_CPU(s); CPUS390XState *env = &cpu->env; - int i; s390_cpu_reset(s); /* initial reset does not clear everything! */ @@ -116,10 +115,6 @@ static void s390_cpu_initial_reset(CPUState *s) env->gbea = 1; env->pfault_token = -1UL; - for (i = 0; i < ARRAY_SIZE(env->io_index); i++) { - env->io_index[i] = -1; - } - env->mchk_index = -1; /* tininess for underflow is detected before rounding */ set_float_detect_tininess(float_tininess_before_rounding, @@ -137,7 +132,6 @@ static void s390_cpu_full_reset(CPUState *s) S390CPU *cpu = S390_CPU(s); S390CPUClass *scc = S390_CPU_GET_CLASS(cpu); CPUS390XState *env = &cpu->env; - int i; scc->parent_reset(s); cpu->env.sigp_order = 0; @@ -153,10 +147,6 @@ static void s390_cpu_full_reset(CPUState *s) env->gbea = 1; env->pfault_token = -1UL; - for (i = 0; i < ARRAY_SIZE(env->io_index); i++) { - env->io_index[i] = -1; - } - env->mchk_index = -1; /* tininess for underflow is detected before rounding */ set_float_detect_tininess(float_tininess_before_rounding, diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index a1123ad..21ce40d 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -53,12 +53,6 @@ #define MMU_USER_IDX 0 -#define MAX_IO_QUEUE 16 -#define MAX_MCHK_QUEUE 16 - -#define PSW_MCHK_MASK 0x0004000000000000 -#define PSW_IO_MASK 0x0200000000000000 - #define S390_MAX_CPUS 248 typedef struct PSW { @@ -66,17 +60,6 @@ typedef struct PSW { uint64_t addr; } PSW; -typedef struct IOIntQueue { - uint16_t id; - uint16_t nr; - uint32_t parm; - uint32_t word; -} IOIntQueue; - -typedef struct MchkQueue { - uint16_t type; -} MchkQueue; - struct CPUS390XState { uint64_t regs[16]; /* GP registers */ /* @@ -122,15 +105,9 @@ struct CPUS390XState { uint64_t cregs[16]; /* control registers */ - IOIntQueue io_queue[MAX_IO_QUEUE][8]; - MchkQueue mchk_queue[MAX_MCHK_QUEUE]; - int pending_int; - uint32_t service_param; uint16_t external_call_addr; DECLARE_BITMAP(emergency_signals, S390_MAX_CPUS); - int io_index[8]; - int mchk_index; uint64_t ckc; uint64_t cputm; @@ -409,9 +386,6 @@ static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc, #define EXCP_IO 7 /* I/O interrupt */ #define EXCP_MCHK 8 /* machine check */ -#define INTERRUPT_IO (1 << 0) -#define INTERRUPT_MCHK (1 << 1) -#define INTERRUPT_EXT_SERVICE (1 << 2) #define INTERRUPT_EXT_CPU_TIMER (1 << 3) #define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4) #define INTERRUPT_EXTERNAL_CALL (1 << 5) @@ -452,62 +426,66 @@ static inline void setcc(S390CPU *cpu, uint64_t cc) } /* STSI */ -#define STSI_LEVEL_MASK 0x00000000f0000000ULL -#define STSI_LEVEL_CURRENT 0x0000000000000000ULL -#define STSI_LEVEL_1 0x0000000010000000ULL -#define STSI_LEVEL_2 0x0000000020000000ULL -#define STSI_LEVEL_3 0x0000000030000000ULL +#define STSI_R0_FC_MASK 0x00000000f0000000ULL +#define STSI_R0_FC_CURRENT 0x0000000000000000ULL +#define STSI_R0_FC_LEVEL_1 0x0000000010000000ULL +#define STSI_R0_FC_LEVEL_2 0x0000000020000000ULL +#define STSI_R0_FC_LEVEL_3 0x0000000030000000ULL #define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL #define STSI_R0_SEL1_MASK 0x00000000000000ffULL #define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL #define STSI_R1_SEL2_MASK 0x000000000000ffffULL /* Basic Machine Configuration */ -struct sysib_111 { - uint32_t res1[8]; +typedef struct SysIB_111 { + uint8_t res1[32]; uint8_t manuf[16]; uint8_t type[4]; uint8_t res2[12]; uint8_t model[16]; uint8_t sequence[16]; uint8_t plant[4]; - uint8_t res3[156]; -}; + uint8_t res3[3996]; +} SysIB_111; +QEMU_BUILD_BUG_ON(sizeof(SysIB_111) != 4096); /* Basic Machine CPU */ -struct sysib_121 { - uint32_t res1[80]; +typedef struct SysIB_121 { + uint8_t res1[80]; uint8_t sequence[16]; uint8_t plant[4]; uint8_t res2[2]; uint16_t cpu_addr; - uint8_t res3[152]; -}; + uint8_t res3[3992]; +} SysIB_121; +QEMU_BUILD_BUG_ON(sizeof(SysIB_121) != 4096); /* Basic Machine CPUs */ -struct sysib_122 { +typedef struct SysIB_122 { uint8_t res1[32]; uint32_t capability; uint16_t total_cpus; - uint16_t active_cpus; + uint16_t conf_cpus; uint16_t standby_cpus; uint16_t reserved_cpus; uint16_t adjustments[2026]; -}; +} SysIB_122; +QEMU_BUILD_BUG_ON(sizeof(SysIB_122) != 4096); /* LPAR CPU */ -struct sysib_221 { - uint32_t res1[80]; +typedef struct SysIB_221 { + uint8_t res1[80]; uint8_t sequence[16]; uint8_t plant[4]; uint16_t cpu_id; uint16_t cpu_addr; - uint8_t res3[152]; -}; + uint8_t res3[3992]; +} SysIB_221; +QEMU_BUILD_BUG_ON(sizeof(SysIB_221) != 4096); /* LPAR CPUs */ -struct sysib_222 { - uint32_t res1[32]; +typedef struct SysIB_222 { + uint8_t res1[32]; uint16_t lpar_num; uint8_t res2; uint8_t lcpuc; @@ -520,11 +498,12 @@ struct sysib_222 { uint8_t res3[16]; uint16_t dedicated_cpus; uint16_t shared_cpus; - uint8_t res4[180]; -}; + uint8_t res4[4020]; +} SysIB_222; +QEMU_BUILD_BUG_ON(sizeof(SysIB_222) != 4096); /* VM CPUs */ -struct sysib_322 { +typedef struct SysIB_322 { uint8_t res1[31]; uint8_t count; struct { @@ -543,7 +522,18 @@ struct sysib_322 { } vm[8]; uint8_t res4[1504]; uint8_t ext_names[8][256]; -}; +} SysIB_322; +QEMU_BUILD_BUG_ON(sizeof(SysIB_322) != 4096); + +typedef union SysIB { + SysIB_111 sysib_111; + SysIB_121 sysib_121; + SysIB_122 sysib_122; + SysIB_221 sysib_221; + SysIB_222 sysib_222; + SysIB_322 sysib_322; +} SysIB; +QEMU_BUILD_BUG_ON(sizeof(SysIB) != 4096); /* MMU defines */ #define _ASCE_ORIGIN ~0xfffULL /* segment table origin */ @@ -718,6 +708,10 @@ static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) return 0; } #endif /* CONFIG_USER_ONLY */ +static inline uint8_t s390_cpu_get_state(S390CPU *cpu) +{ + return cpu->env.cpu_state; +} /* cpu_models.c */ @@ -752,7 +746,6 @@ void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen, /* service interrupts are floating therefore we must not pass an cpustate */ void s390_sclp_extint(uint32_t parm); - /* mmu_helper.c */ int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf, int len, bool is_write); diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c index 85d10b5..a5619f2 100644 --- a/target/s390x/cpu_features.c +++ b/target/s390x/cpu_features.c @@ -156,8 +156,12 @@ static const S390FeatDef s390_features[] = { FEAT_INIT("ptff-qpc", S390_FEAT_TYPE_PTFF, 3, "PTFF Query Physical Clock"), FEAT_INIT("ptff-qui", S390_FEAT_TYPE_PTFF, 4, "PTFF Query UTC Information"), FEAT_INIT("ptff-qtou", S390_FEAT_TYPE_PTFF, 5, "PTFF Query TOD Offset User"), + FEAT_INIT("ptff-qsie", S390_FEAT_TYPE_PTFF, 10, "PTFF Query Steering Information Extended"), + FEAT_INIT("ptff-qtoue", S390_FEAT_TYPE_PTFF, 13, "PTFF Query TOD Offset User Extended"), FEAT_INIT("ptff-sto", S390_FEAT_TYPE_PTFF, 65, "PTFF Set TOD Offset"), FEAT_INIT("ptff-stou", S390_FEAT_TYPE_PTFF, 69, "PTFF Set TOD Offset User"), + FEAT_INIT("ptff-stoe", S390_FEAT_TYPE_PTFF, 73, "PTFF Set TOD Offset Extended"), + FEAT_INIT("ptff-stoue", S390_FEAT_TYPE_PTFF, 77, "PTFF Set TOD Offset User Extended"), FEAT_INIT("kmac-dea", S390_FEAT_TYPE_KMAC, 1, "KMAC DEA"), FEAT_INIT("kmac-tdea-128", S390_FEAT_TYPE_KMAC, 2, "KMAC TDEA-128"), @@ -445,6 +449,7 @@ static S390FeatGroupDef s390_feature_groups[] = { FEAT_GROUP_INIT("plo", PLO, "Perform-locked-operation facility"), FEAT_GROUP_INIT("tods", TOD_CLOCK_STEERING, "Tod-clock-steering facility"), FEAT_GROUP_INIT("gen13ptff", GEN13_PTFF, "PTFF enhancements introduced with z13"), + FEAT_GROUP_INIT("mepochptff", MULTIPLE_EPOCH_PTFF, "PTFF enhancements introduced with Multiple-epoch facility"), FEAT_GROUP_INIT("msa", MSA, "Message-security-assist facility"), FEAT_GROUP_INIT("msa1", MSA_EXT_1, "Message-security-assist-extension 1 facility"), FEAT_GROUP_INIT("msa2", MSA_EXT_2, "Message-security-assist-extension 2 facility"), diff --git a/target/s390x/cpu_features_def.h b/target/s390x/cpu_features_def.h index 4d93087..7c5915c 100644 --- a/target/s390x/cpu_features_def.h +++ b/target/s390x/cpu_features_def.h @@ -151,8 +151,12 @@ typedef enum { S390_FEAT_PTFF_QPT, S390_FEAT_PTFF_QUI, S390_FEAT_PTFF_QTOU, + S390_FEAT_PTFF_QSIE, + S390_FEAT_PTFF_QTOUE, S390_FEAT_PTFF_STO, S390_FEAT_PTFF_STOU, + S390_FEAT_PTFF_STOE, + S390_FEAT_PTFF_STOUE, /* KMAC */ S390_FEAT_KMAC_DEA, diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index 212a5f0..250d931 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -23,6 +23,7 @@ #include "qapi/qmp/qbool.h" #ifndef CONFIG_USER_ONLY #include "sysemu/arch_init.h" +#include "hw/pci/pci.h" #endif #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \ @@ -1271,6 +1272,11 @@ static void register_types(void) /* init all bitmaps from gnerated data initially */ s390_init_feat_bitmap(qemu_max_cpu_feat_init, qemu_max_cpu_feat); +#ifndef CONFIG_USER_ONLY + if (!pci_available) { + clear_bit(S390_FEAT_ZPCI, qemu_max_cpu_feat); + } +#endif for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { s390_init_feat_bitmap(s390_cpu_defs[i].base_init, s390_cpu_defs[i].base_feat); diff --git a/target/s390x/excp_helper.c b/target/s390x/excp_helper.c index e8f7a40..86ec9e6 100644 --- a/target/s390x/excp_helper.c +++ b/target/s390x/excp_helper.c @@ -29,6 +29,7 @@ #include "exec/address-spaces.h" #ifndef CONFIG_USER_ONLY #include "sysemu/sysemu.h" +#include "hw/s390x/s390_flic.h" #endif /* #define DEBUG_S390 */ @@ -237,6 +238,7 @@ static void do_svc_interrupt(CPUS390XState *env) static void do_ext_interrupt(CPUS390XState *env) { + QEMUS390FLICState *flic = QEMU_S390_FLIC(s390_get_flic()); S390CPU *cpu = s390_env_get_cpu(env); uint64_t mask, addr; uint16_t cpu_addr; @@ -273,17 +275,14 @@ static void do_ext_interrupt(CPUS390XState *env) lowcore->ext_int_code = cpu_to_be16(EXT_CPU_TIMER); lowcore->cpu_addr = 0; env->pending_int &= ~INTERRUPT_EXT_CPU_TIMER; - } else if ((env->pending_int & INTERRUPT_EXT_SERVICE) && + } else if (qemu_s390_flic_has_service(flic) && (env->cregs[0] & CR0_SERVICE_SC)) { - /* - * FIXME: floating IRQs should be considered by all CPUs and - * shuld not get cleared by CPU reset. - */ + uint32_t param; + + param = qemu_s390_flic_dequeue_service(flic); lowcore->ext_int_code = cpu_to_be16(EXT_SERVICE); - lowcore->ext_params = cpu_to_be32(env->service_param); + lowcore->ext_params = cpu_to_be32(param); lowcore->cpu_addr = 0; - env->service_param = 0; - env->pending_int &= ~INTERRUPT_EXT_SERVICE; } else { g_assert_not_reached(); } @@ -303,95 +302,46 @@ static void do_ext_interrupt(CPUS390XState *env) static void do_io_interrupt(CPUS390XState *env) { - S390CPU *cpu = s390_env_get_cpu(env); + QEMUS390FLICState *flic = QEMU_S390_FLIC(s390_get_flic()); + uint64_t mask, addr; + QEMUS390FlicIO *io; LowCore *lowcore; - IOIntQueue *q; - uint8_t isc; - int disable = 1; - int found = 0; - - if (!(env->psw.mask & PSW_MASK_IO)) { - cpu_abort(CPU(cpu), "I/O int w/o I/O mask\n"); - } - - for (isc = 0; isc < ARRAY_SIZE(env->io_index); isc++) { - uint64_t isc_bits; - - if (env->io_index[isc] < 0) { - continue; - } - if (env->io_index[isc] >= MAX_IO_QUEUE) { - cpu_abort(CPU(cpu), "I/O queue overrun for isc %d: %d\n", - isc, env->io_index[isc]); - } - - q = &env->io_queue[env->io_index[isc]][isc]; - isc_bits = ISC_TO_ISC_BITS(IO_INT_WORD_ISC(q->word)); - if (!(env->cregs[6] & isc_bits)) { - disable = 0; - continue; - } - if (!found) { - uint64_t mask, addr; - - found = 1; - lowcore = cpu_map_lowcore(env); - - lowcore->subchannel_id = cpu_to_be16(q->id); - lowcore->subchannel_nr = cpu_to_be16(q->nr); - lowcore->io_int_parm = cpu_to_be32(q->parm); - lowcore->io_int_word = cpu_to_be32(q->word); - lowcore->io_old_psw.mask = cpu_to_be64(get_psw_mask(env)); - lowcore->io_old_psw.addr = cpu_to_be64(env->psw.addr); - mask = be64_to_cpu(lowcore->io_new_psw.mask); - addr = be64_to_cpu(lowcore->io_new_psw.addr); - cpu_unmap_lowcore(lowcore); + g_assert(env->psw.mask & PSW_MASK_IO); + io = qemu_s390_flic_dequeue_io(flic, env->cregs[6]); + g_assert(io); - env->io_index[isc]--; + lowcore = cpu_map_lowcore(env); - DPRINTF("%s: %" PRIx64 " %" PRIx64 "\n", __func__, - env->psw.mask, env->psw.addr); - load_psw(env, mask, addr); - } - if (env->io_index[isc] >= 0) { - disable = 0; - } - continue; - } + lowcore->subchannel_id = cpu_to_be16(io->id); + lowcore->subchannel_nr = cpu_to_be16(io->nr); + lowcore->io_int_parm = cpu_to_be32(io->parm); + lowcore->io_int_word = cpu_to_be32(io->word); + lowcore->io_old_psw.mask = cpu_to_be64(get_psw_mask(env)); + lowcore->io_old_psw.addr = cpu_to_be64(env->psw.addr); + mask = be64_to_cpu(lowcore->io_new_psw.mask); + addr = be64_to_cpu(lowcore->io_new_psw.addr); - if (disable) { - env->pending_int &= ~INTERRUPT_IO; - } + cpu_unmap_lowcore(lowcore); + g_free(io); + DPRINTF("%s: %" PRIx64 " %" PRIx64 "\n", __func__, env->psw.mask, + env->psw.addr); + load_psw(env, mask, addr); } static void do_mchk_interrupt(CPUS390XState *env) { - S390CPU *cpu = s390_env_get_cpu(env); + QEMUS390FLICState *flic = QEMU_S390_FLIC(s390_get_flic()); uint64_t mask, addr; LowCore *lowcore; - MchkQueue *q; int i; - if (!(env->psw.mask & PSW_MASK_MCHECK)) { - cpu_abort(CPU(cpu), "Machine check w/o mchk mask\n"); - } - - if (env->mchk_index < 0 || env->mchk_index >= MAX_MCHK_QUEUE) { - cpu_abort(CPU(cpu), "Mchk queue overrun: %d\n", env->mchk_index); - } - - q = &env->mchk_queue[env->mchk_index]; + /* for now we only support channel report machine checks (floating) */ + g_assert(env->psw.mask & PSW_MASK_MCHECK); + g_assert(env->cregs[14] & CR14_CHANNEL_REPORT_SC); - if (q->type != 1) { - /* Don't know how to handle this... */ - cpu_abort(CPU(cpu), "Unknown machine check type %d\n", q->type); - } - if (!(env->cregs[14] & (1 << 28))) { - /* CRW machine checks disabled */ - return; - } + qemu_s390_flic_dequeue_crw_mchk(flic); lowcore = cpu_map_lowcore(env); @@ -418,11 +368,6 @@ static void do_mchk_interrupt(CPUS390XState *env) cpu_unmap_lowcore(lowcore); - env->mchk_index--; - if (env->mchk_index == -1) { - env->pending_int &= ~INTERRUPT_MCHK; - } - DPRINTF("%s: %" PRIx64 " %" PRIx64 "\n", __func__, env->psw.mask, env->psw.addr); @@ -431,12 +376,15 @@ static void do_mchk_interrupt(CPUS390XState *env) void s390_cpu_do_interrupt(CPUState *cs) { + QEMUS390FLICState *flic = QEMU_S390_FLIC(s390_get_flic()); S390CPU *cpu = S390_CPU(cs); CPUS390XState *env = &cpu->env; + bool stopped = false; qemu_log_mask(CPU_LOG_INT, "%s: %d at pc=%" PRIx64 "\n", __func__, cs->exception_index, env->psw.addr); +try_deliver: /* handle machine checks */ if (cs->exception_index == -1 && s390_cpu_has_mcck_int(cpu)) { cs->exception_index = EXCP_MCHK; @@ -479,20 +427,30 @@ void s390_cpu_do_interrupt(CPUState *cs) break; case EXCP_STOP: do_stop_interrupt(env); + stopped = true; break; } - /* WAIT PSW during interrupt injection or STOP interrupt */ - if (cs->exception_index == EXCP_HLT) { - /* don't trigger a cpu_loop_exit(), use an interrupt instead */ - cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HALT); + if (cs->exception_index != -1 && !stopped) { + /* check if there are more pending interrupts to deliver */ + cs->exception_index = -1; + goto try_deliver; } cs->exception_index = -1; /* we might still have pending interrupts, but not deliverable */ - if (!env->pending_int) { + if (!env->pending_int && !qemu_s390_flic_has_any(flic)) { cs->interrupt_request &= ~CPU_INTERRUPT_HARD; } + + /* WAIT PSW during interrupt injection or STOP interrupt */ + if ((env->psw.mask & PSW_MASK_WAIT) || stopped) { + /* don't trigger a cpu_loop_exit(), use an interrupt instead */ + cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HALT); + } else if (cs->halted) { + /* unhalt if we had a WAIT PSW somehwere in our injection chain */ + s390_cpu_unhalt(cpu); + } } bool s390_cpu_exec_interrupt(CPUState *cs, int interrupt_request) @@ -510,6 +468,11 @@ bool s390_cpu_exec_interrupt(CPUState *cs, int interrupt_request) s390_cpu_do_interrupt(cs); return true; } + if (env->psw.mask & PSW_MASK_WAIT) { + /* Woken up because of a floating interrupt but it has already + * been delivered. Go back to sleep. */ + cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HALT); + } } return false; } diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c index 0570f59..f6211b4 100644 --- a/target/s390x/gen-features.c +++ b/target/s390x/gen-features.c @@ -59,6 +59,12 @@ S390_FEAT_PTFF_QTOU, \ S390_FEAT_PTFF_STOU +#define S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF \ + S390_FEAT_PTFF_QSIE, \ + S390_FEAT_PTFF_QTOUE, \ + S390_FEAT_PTFF_STOE, \ + S390_FEAT_PTFF_STOUE + #define S390_FEAT_GROUP_MSA \ S390_FEAT_MSA, \ S390_FEAT_KMAC_DEA, \ @@ -219,6 +225,9 @@ static uint16_t group_TOD_CLOCK_STEERING[] = { static uint16_t group_GEN13_PTFF[] = { S390_FEAT_GROUP_GEN13_PTFF, }; +static uint16_t group_MULTIPLE_EPOCH_PTFF[] = { + S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF, +}; static uint16_t group_MSA[] = { S390_FEAT_GROUP_MSA, }; @@ -466,6 +475,7 @@ static uint16_t full_GEN14_GA1[] = { S390_FEAT_CMM_NT, S390_FEAT_HPMA2, S390_FEAT_SIE_KSS, + S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF, }; /* Default features (in order of release) @@ -572,8 +582,10 @@ static uint16_t qemu_LATEST[] = { S390_FEAT_STFLE_49, S390_FEAT_LOCAL_TLB_CLEARING, S390_FEAT_INTERLOCKED_ACCESS_2, - S390_FEAT_MSA_EXT_4, + S390_FEAT_ADAPTER_EVENT_NOTIFICATION, + S390_FEAT_ADAPTER_INT_SUPPRESSION, S390_FEAT_MSA_EXT_3, + S390_FEAT_MSA_EXT_4, }; /* add all new definitions before this point */ @@ -582,6 +594,8 @@ static uint16_t qemu_MAX[] = { S390_FEAT_STFLE_53, /* generates a dependency warning, leave it out for now */ S390_FEAT_MSA_EXT_5, + /* only with CONFIG_PCI */ + S390_FEAT_ZPCI, }; /****** END FEATURE DEFS ******/ @@ -664,6 +678,7 @@ static FeatGroupDefSpec FeatGroupDef[] = { FEAT_GROUP_INITIALIZER(PLO), FEAT_GROUP_INITIALIZER(TOD_CLOCK_STEERING), FEAT_GROUP_INITIALIZER(GEN13_PTFF), + FEAT_GROUP_INITIALIZER(MULTIPLE_EPOCH_PTFF), FEAT_GROUP_INITIALIZER(MSA), FEAT_GROUP_INITIALIZER(MSA_EXT_1), FEAT_GROUP_INITIALIZER(MSA_EXT_2), diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 59a1d98..59cba86 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -170,6 +170,16 @@ DEF_HELPER_4(schm, void, env, i64, i64, i64) DEF_HELPER_3(ssch, void, env, i64, i64) DEF_HELPER_2(stcrw, void, env, i64) DEF_HELPER_3(stsch, void, env, i64, i64) +DEF_HELPER_2(tpi, i32, env, i64) DEF_HELPER_3(tsch, void, env, i64, i64) DEF_HELPER_2(chsc, void, env, i64) + +DEF_HELPER_2(clp, void, env, i32) +DEF_HELPER_3(pcilg, void, env, i32, i32) +DEF_HELPER_3(pcistg, void, env, i32, i32) +DEF_HELPER_4(stpcifc, void, env, i32, i64, i32) +DEF_HELPER_3(sic, void, env, i64, i64) +DEF_HELPER_3(rpcit, void, env, i32, i32) +DEF_HELPER_5(pcistb, void, env, i32, i32, i64, i32) +DEF_HELPER_4(mpcifc, void, env, i32, i64, i32) #endif diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 11ee43d..621e10d 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1063,8 +1063,22 @@ C(0xb233, SSCH, S, Z, 0, insn, 0, 0, ssch, 0) C(0xb239, STCRW, S, Z, 0, insn, 0, 0, stcrw, 0) C(0xb234, STSCH, S, Z, 0, insn, 0, 0, stsch, 0) + C(0xb236, TPI , S, Z, la2, 0, 0, 0, tpi, 0) C(0xb235, TSCH, S, Z, 0, insn, 0, 0, tsch, 0) /* ??? Not listed in PoO ninth edition, but there's a linux driver that uses it: "A CHSC subchannel is usually present on LPAR only." */ C(0xb25f, CHSC, RRE, Z, 0, insn, 0, 0, chsc, 0) + +/* zPCI Instructions */ + /* None of these instructions are documented in the PoP, so this is all + based upon target/s390x/kvm.c and Linux code and likely incomplete */ + C(0xebd0, PCISTB, RSY_a, PCI, la2, 0, 0, 0, pcistb, 0) + C(0xebd1, SIC, RSY_a, AIS, r1, r3, 0, 0, sic, 0) + C(0xb9a0, CLP, RRF_c, PCI, 0, 0, 0, 0, clp, 0) + C(0xb9d0, PCISTG, RRE, PCI, 0, 0, 0, 0, pcistg, 0) + C(0xb9d2, PCILG, RRE, PCI, 0, 0, 0, 0, pcilg, 0) + C(0xb9d3, RPCIT, RRE, PCI, 0, 0, 0, 0, rpcit, 0) + C(0xe3d0, MPCIFC, RXY_a, PCI, la2, 0, 0, 0, mpcifc, 0) + C(0xe3d4, STPCIFC, RXY_a, PCI, la2, 0, 0, 0, stpcifc, 0) + #endif /* CONFIG_USER_ONLY */ diff --git a/target/s390x/internal.h b/target/s390x/internal.h index fea165f..d911e84 100644 --- a/target/s390x/internal.h +++ b/target/s390x/internal.h @@ -278,11 +278,6 @@ static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg) cpu_reset(cs); } -static inline uint8_t s390_cpu_get_state(S390CPU *cpu) -{ - return cpu->env.cpu_state; -} - /* arch_dump.c */ int s390_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs, diff --git a/target/s390x/interrupt.c b/target/s390x/interrupt.c index 39c026b..25cfb3e 100644 --- a/target/s390x/interrupt.c +++ b/target/s390x/interrupt.c @@ -15,6 +15,9 @@ #include "exec/exec-all.h" #include "sysemu/kvm.h" #include "hw/s390x/ioinst.h" +#if !defined(CONFIG_USER_ONLY) +#include "hw/s390x/s390_flic.h" +#endif /* Ensure to exit the TB after this call! */ void trigger_pgm_exception(CPUS390XState *env, uint32_t code, uint32_t ilen) @@ -55,17 +58,6 @@ void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen, } #if !defined(CONFIG_USER_ONLY) -static void cpu_inject_service(S390CPU *cpu, uint32_t param) -{ - CPUS390XState *env = &cpu->env; - - /* multiplexing is good enough for sclp - kvm does it internally as well*/ - env->service_param |= param; - - env->pending_int |= INTERRUPT_EXT_SERVICE; - cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD); -} - void cpu_inject_clock_comparator(S390CPU *cpu) { CPUS390XState *env = &cpu->env; @@ -134,48 +126,6 @@ void cpu_inject_stop(S390CPU *cpu) cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD); } -static void cpu_inject_io(S390CPU *cpu, uint16_t subchannel_id, - uint16_t subchannel_number, - uint32_t io_int_parm, uint32_t io_int_word) -{ - CPUS390XState *env = &cpu->env; - int isc = IO_INT_WORD_ISC(io_int_word); - - if (env->io_index[isc] == MAX_IO_QUEUE - 1) { - /* ugh - can't queue anymore. Let's drop. */ - return; - } - - env->io_index[isc]++; - assert(env->io_index[isc] < MAX_IO_QUEUE); - - env->io_queue[env->io_index[isc]][isc].id = subchannel_id; - env->io_queue[env->io_index[isc]][isc].nr = subchannel_number; - env->io_queue[env->io_index[isc]][isc].parm = io_int_parm; - env->io_queue[env->io_index[isc]][isc].word = io_int_word; - - env->pending_int |= INTERRUPT_IO; - cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD); -} - -static void cpu_inject_crw_mchk(S390CPU *cpu) -{ - CPUS390XState *env = &cpu->env; - - if (env->mchk_index == MAX_MCHK_QUEUE - 1) { - /* ugh - can't queue anymore. Let's drop. */ - return; - } - - env->mchk_index++; - assert(env->mchk_index < MAX_MCHK_QUEUE); - - env->mchk_queue[env->mchk_index].type = 1; - - env->pending_int |= INTERRUPT_MCHK; - cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD); -} - /* * All of the following interrupts are floating, i.e. not per-vcpu. * We just need a dummy cpustate in order to be able to inject in the @@ -183,53 +133,50 @@ static void cpu_inject_crw_mchk(S390CPU *cpu) */ void s390_sclp_extint(uint32_t parm) { - if (kvm_enabled()) { - kvm_s390_service_interrupt(parm); - } else { - S390CPU *dummy_cpu = s390_cpu_addr2state(0); + S390FLICState *fs = s390_get_flic(); + S390FLICStateClass *fsc = s390_get_flic_class(fs); - cpu_inject_service(dummy_cpu, parm); - } + fsc->inject_service(fs, parm); } void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr, uint32_t io_int_parm, uint32_t io_int_word) { - if (kvm_enabled()) { - kvm_s390_io_interrupt(subchannel_id, subchannel_nr, io_int_parm, - io_int_word); - } else { - S390CPU *dummy_cpu = s390_cpu_addr2state(0); + S390FLICState *fs = s390_get_flic(); + S390FLICStateClass *fsc = s390_get_flic_class(fs); - cpu_inject_io(dummy_cpu, subchannel_id, subchannel_nr, io_int_parm, - io_int_word); - } + fsc->inject_io(fs, subchannel_id, subchannel_nr, io_int_parm, io_int_word); } void s390_crw_mchk(void) { - if (kvm_enabled()) { - kvm_s390_crw_mchk(); - } else { - S390CPU *dummy_cpu = s390_cpu_addr2state(0); + S390FLICState *fs = s390_get_flic(); + S390FLICStateClass *fsc = s390_get_flic_class(fs); - cpu_inject_crw_mchk(dummy_cpu); - } + fsc->inject_crw_mchk(fs); } bool s390_cpu_has_mcck_int(S390CPU *cpu) { + QEMUS390FLICState *flic = s390_get_qemu_flic(s390_get_flic()); CPUS390XState *env = &cpu->env; if (!(env->psw.mask & PSW_MASK_MCHECK)) { return false; } - return env->pending_int & INTERRUPT_MCHK; + /* for now we only support channel report machine checks (floating) */ + if (qemu_s390_flic_has_crw_mchk(flic) && + (env->cregs[14] & CR14_CHANNEL_REPORT_SC)) { + return true; + } + + return false; } bool s390_cpu_has_ext_int(S390CPU *cpu) { + QEMUS390FLICState *flic = s390_get_qemu_flic(s390_get_flic()); CPUS390XState *env = &cpu->env; if (!(env->psw.mask & PSW_MASK_EXT)) { @@ -261,7 +208,7 @@ bool s390_cpu_has_ext_int(S390CPU *cpu) return true; } - if ((env->pending_int & INTERRUPT_EXT_SERVICE) && + if (qemu_s390_flic_has_service(flic) && (env->cregs[0] & CR0_SERVICE_SC)) { return true; } @@ -271,13 +218,14 @@ bool s390_cpu_has_ext_int(S390CPU *cpu) bool s390_cpu_has_io_int(S390CPU *cpu) { + QEMUS390FLICState *flic = s390_get_qemu_flic(s390_get_flic()); CPUS390XState *env = &cpu->env; if (!(env->psw.mask & PSW_MASK_IO)) { return false; } - return env->pending_int & INTERRUPT_IO; + return qemu_s390_flic_has_io(flic, env->cregs[6]); } bool s390_cpu_has_restart_int(S390CPU *cpu) diff --git a/target/s390x/kvm-stub.c b/target/s390x/kvm-stub.c index 6bae3e9..8cdcf83 100644 --- a/target/s390x/kvm-stub.c +++ b/target/s390x/kvm-stub.c @@ -12,10 +12,6 @@ #include "cpu.h" #include "kvm_s390x.h" -void kvm_s390_service_interrupt(uint32_t parm) -{ -} - void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code) { } @@ -30,15 +26,6 @@ void kvm_s390_program_interrupt(S390CPU *cpu, uint16_t code) { } -void kvm_s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr, - uint32_t io_int_parm, uint32_t io_int_word) -{ -} - -void kvm_s390_crw_mchk(void) -{ -} - int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state) { return -ENOSYS; diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index 8736001..deb8709 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -1034,7 +1034,7 @@ void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq) inject_vcpu_irq_legacy(cs, irq); } -static void __kvm_s390_floating_interrupt(struct kvm_s390_irq *irq) +void kvm_s390_floating_interrupt_legacy(struct kvm_s390_irq *irq) { struct kvm_s390_interrupt kvmint = {}; int r; @@ -1052,33 +1052,6 @@ static void __kvm_s390_floating_interrupt(struct kvm_s390_irq *irq) } } -void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq) -{ - static bool use_flic = true; - int r; - - if (use_flic) { - r = kvm_s390_inject_flic(irq); - if (r == -ENOSYS) { - use_flic = false; - } - if (!r) { - return; - } - } - __kvm_s390_floating_interrupt(irq); -} - -void kvm_s390_service_interrupt(uint32_t parm) -{ - struct kvm_s390_irq irq = { - .type = KVM_S390_INT_SERVICE, - .u.ext.ext_params = parm, - }; - - kvm_s390_floating_interrupt(&irq); -} - void kvm_s390_program_interrupt(S390CPU *cpu, uint16_t code) { struct kvm_s390_irq irq = { @@ -1690,10 +1663,10 @@ static int handle_tsch(S390CPU *cpu) * If an I/O interrupt had been dequeued, we have to reinject it. */ if (run->s390_tsch.dequeued) { - kvm_s390_io_interrupt(run->s390_tsch.subchannel_id, - run->s390_tsch.subchannel_nr, - run->s390_tsch.io_int_parm, - run->s390_tsch.io_int_word); + s390_io_interrupt(run->s390_tsch.subchannel_id, + run->s390_tsch.subchannel_nr, + run->s390_tsch.io_int_parm, + run->s390_tsch.io_int_word); } ret = 0; } @@ -1702,7 +1675,7 @@ static int handle_tsch(S390CPU *cpu) static void insert_stsi_3_2_2(S390CPU *cpu, __u64 addr, uint8_t ar) { - struct sysib_322 sysib; + SysIB_322 sysib; int del; if (s390_cpu_virt_mem_read(cpu, addr, ar, &sysib, sizeof(sysib))) { @@ -1840,37 +1813,6 @@ bool kvm_arch_stop_on_emulation_error(CPUState *cpu) return true; } -void kvm_s390_io_interrupt(uint16_t subchannel_id, - uint16_t subchannel_nr, uint32_t io_int_parm, - uint32_t io_int_word) -{ - struct kvm_s390_irq irq = { - .u.io.subchannel_id = subchannel_id, - .u.io.subchannel_nr = subchannel_nr, - .u.io.io_int_parm = io_int_parm, - .u.io.io_int_word = io_int_word, - }; - - if (io_int_word & IO_INT_WORD_AI) { - irq.type = KVM_S390_INT_IO(1, 0, 0, 0); - } else { - irq.type = KVM_S390_INT_IO(0, (subchannel_id & 0xff00) >> 8, - (subchannel_id & 0x0006), - subchannel_nr); - } - kvm_s390_floating_interrupt(&irq); -} - -void kvm_s390_crw_mchk(void) -{ - struct kvm_s390_irq irq = { - .type = KVM_S390_MCHK, - .u.mchk.cr14 = CR14_CHANNEL_REPORT_SC, - .u.mchk.mcic = s390_build_validity_mcic() | MCIC_SC_CP, - }; - kvm_s390_floating_interrupt(&irq); -} - void kvm_s390_enable_css_support(S390CPU *cpu) { int r; @@ -2279,6 +2221,14 @@ void kvm_s390_get_host_cpu_model(S390CPUModel *model, Error **errp) return; } + /* PTFF subfunctions might be indicated although kernel support missing */ + if (!test_bit(S390_FEAT_MULTIPLE_EPOCH, model->features)) { + clear_bit(S390_FEAT_PTFF_QSIE, model->features); + clear_bit(S390_FEAT_PTFF_QTOUE, model->features); + clear_bit(S390_FEAT_PTFF_STOE, model->features); + clear_bit(S390_FEAT_PTFF_STOUE, model->features); + } + /* with cpu model support, CMM is only indicated if really available */ if (kvm_s390_cmma_available()) { set_bit(S390_FEAT_CMM, model->features); diff --git a/target/s390x/kvm_s390x.h b/target/s390x/kvm_s390x.h index 79b3594..7a3b862 100644 --- a/target/s390x/kvm_s390x.h +++ b/target/s390x/kvm_s390x.h @@ -12,17 +12,12 @@ struct kvm_s390_irq; -void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq); -void kvm_s390_service_interrupt(uint32_t parm); +void kvm_s390_floating_interrupt_legacy(struct kvm_s390_irq *irq); void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq); void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code); int kvm_s390_mem_op(S390CPU *cpu, vaddr addr, uint8_t ar, void *hostbuf, int len, bool is_write); void kvm_s390_program_interrupt(S390CPU *cpu, uint16_t code); -void kvm_s390_io_interrupt(uint16_t subchannel_id, - uint16_t subchannel_nr, uint32_t io_int_parm, - uint32_t io_int_word); -void kvm_s390_crw_mchk(void); int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state); void kvm_s390_vcpu_interrupt_pre_save(S390CPU *cpu); int kvm_s390_vcpu_interrupt_post_load(S390CPU *cpu); @@ -44,7 +39,4 @@ void kvm_s390_crypto_reset(void); void kvm_s390_restart_interrupt(S390CPU *cpu); void kvm_s390_stop_interrupt(S390CPU *cpu); -/* implemented outside of target/s390x/ */ -int kvm_s390_inject_flic(struct kvm_s390_irq *irq); - #endif /* KVM_S390X_H */ diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c index 86da6aa..e0b23c1 100644 --- a/target/s390x/misc_helper.c +++ b/target/s390x/misc_helper.c @@ -36,6 +36,10 @@ #include "hw/s390x/ebcdic.h" #include "hw/s390x/s390-virtio-hcall.h" #include "hw/s390x/sclp.h" +#include "hw/s390x/s390_flic.h" +#include "hw/s390x/ioinst.h" +#include "hw/s390x/s390-pci-inst.h" +#include "hw/boards.h" #endif /* #define DEBUG_HELPER */ @@ -194,132 +198,148 @@ void HELPER(spt)(CPUS390XState *env, uint64_t time) } /* Store System Information */ -uint32_t HELPER(stsi)(CPUS390XState *env, uint64_t a0, - uint64_t r0, uint64_t r1) +uint32_t HELPER(stsi)(CPUS390XState *env, uint64_t a0, uint64_t r0, uint64_t r1) { + const uintptr_t ra = GETPC(); + const uint32_t sel1 = r0 & STSI_R0_SEL1_MASK; + const uint32_t sel2 = r1 & STSI_R1_SEL2_MASK; + const MachineState *ms = MACHINE(qdev_get_machine()); + uint16_t total_cpus = 0, conf_cpus = 0, reserved_cpus = 0; S390CPU *cpu = s390_env_get_cpu(env); - int cc = 0; - int sel1, sel2; + SysIB sysib = { 0 }; + int i, cc = 0; + + if ((r0 & STSI_R0_FC_MASK) > STSI_R0_FC_LEVEL_3) { + /* invalid function code: no other checks are performed */ + return 3; + } - if ((r0 & STSI_LEVEL_MASK) <= STSI_LEVEL_3 && - ((r0 & STSI_R0_RESERVED_MASK) || (r1 & STSI_R1_RESERVED_MASK))) { - /* valid function code, invalid reserved bits */ - s390_program_interrupt(env, PGM_SPECIFICATION, 4, GETPC()); + if ((r0 & STSI_R0_RESERVED_MASK) || (r1 & STSI_R1_RESERVED_MASK)) { + s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra); } - sel1 = r0 & STSI_R0_SEL1_MASK; - sel2 = r1 & STSI_R1_SEL2_MASK; + if ((r0 & STSI_R0_FC_MASK) == STSI_R0_FC_CURRENT) { + /* query the current level: no further checks are performed */ + env->regs[0] = STSI_R0_FC_LEVEL_3; + return 0; + } + + if (a0 & ~TARGET_PAGE_MASK) { + s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra); + } - /* XXX: spec exception if sysib is not 4k-aligned */ + /* count the cpus and split them into configured and reserved ones */ + for (i = 0; i < ms->possible_cpus->len; i++) { + total_cpus++; + if (ms->possible_cpus->cpus[i].cpu) { + conf_cpus++; + } else { + reserved_cpus++; + } + } - switch (r0 & STSI_LEVEL_MASK) { - case STSI_LEVEL_1: + /* + * In theory, we could report Level 1 / Level 2 as current. However, + * the Linux kernel will detect this as running under LPAR and assume + * that we have a sclp linemode console (which is always present on + * LPAR, but not the default for QEMU), therefore not displaying boot + * messages and making booting a Linux kernel under TCG harder. + * + * For now we fake the same SMP configuration on all levels. + * + * TODO: We could later make the level configurable via the machine + * and change defaults (linemode console) based on machine type + * and accelerator. + */ + switch (r0 & STSI_R0_FC_MASK) { + case STSI_R0_FC_LEVEL_1: if ((sel1 == 1) && (sel2 == 1)) { /* Basic Machine Configuration */ - struct sysib_111 sysib; char type[5] = {}; - memset(&sysib, 0, sizeof(sysib)); - ebcdic_put(sysib.manuf, "QEMU ", 16); + ebcdic_put(sysib.sysib_111.manuf, "QEMU ", 16); /* same as machine type number in STORE CPU ID, but in EBCDIC */ snprintf(type, ARRAY_SIZE(type), "%X", cpu->model->def->type); - ebcdic_put(sysib.type, type, 4); + ebcdic_put(sysib.sysib_111.type, type, 4); /* model number (not stored in STORE CPU ID for z/Architecure) */ - ebcdic_put(sysib.model, "QEMU ", 16); - ebcdic_put(sysib.sequence, "QEMU ", 16); - ebcdic_put(sysib.plant, "QEMU", 4); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); + ebcdic_put(sysib.sysib_111.model, "QEMU ", 16); + ebcdic_put(sysib.sysib_111.sequence, "QEMU ", 16); + ebcdic_put(sysib.sysib_111.plant, "QEMU", 4); } else if ((sel1 == 2) && (sel2 == 1)) { /* Basic Machine CPU */ - struct sysib_121 sysib; - - memset(&sysib, 0, sizeof(sysib)); - /* XXX make different for different CPUs? */ - ebcdic_put(sysib.sequence, "QEMUQEMUQEMUQEMU", 16); - ebcdic_put(sysib.plant, "QEMU", 4); - stw_p(&sysib.cpu_addr, env->core_id); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); + ebcdic_put(sysib.sysib_121.sequence, "QEMUQEMUQEMUQEMU", 16); + ebcdic_put(sysib.sysib_121.plant, "QEMU", 4); + sysib.sysib_121.cpu_addr = cpu_to_be16(env->core_id); } else if ((sel1 == 2) && (sel2 == 2)) { /* Basic Machine CPUs */ - struct sysib_122 sysib; - - memset(&sysib, 0, sizeof(sysib)); - stl_p(&sysib.capability, 0x443afc29); - /* XXX change when SMP comes */ - stw_p(&sysib.total_cpus, 1); - stw_p(&sysib.active_cpus, 1); - stw_p(&sysib.standby_cpus, 0); - stw_p(&sysib.reserved_cpus, 0); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); + sysib.sysib_122.capability = cpu_to_be32(0x443afc29); + sysib.sysib_122.total_cpus = cpu_to_be16(total_cpus); + sysib.sysib_122.conf_cpus = cpu_to_be16(conf_cpus); + sysib.sysib_122.reserved_cpus = cpu_to_be16(reserved_cpus); } else { cc = 3; } break; - case STSI_LEVEL_2: - { - if ((sel1 == 2) && (sel2 == 1)) { - /* LPAR CPU */ - struct sysib_221 sysib; - - memset(&sysib, 0, sizeof(sysib)); - /* XXX make different for different CPUs? */ - ebcdic_put(sysib.sequence, "QEMUQEMUQEMUQEMU", 16); - ebcdic_put(sysib.plant, "QEMU", 4); - stw_p(&sysib.cpu_addr, env->core_id); - stw_p(&sysib.cpu_id, 0); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); - } else if ((sel1 == 2) && (sel2 == 2)) { - /* LPAR CPUs */ - struct sysib_222 sysib; - - memset(&sysib, 0, sizeof(sysib)); - stw_p(&sysib.lpar_num, 0); - sysib.lcpuc = 0; - /* XXX change when SMP comes */ - stw_p(&sysib.total_cpus, 1); - stw_p(&sysib.conf_cpus, 1); - stw_p(&sysib.standby_cpus, 0); - stw_p(&sysib.reserved_cpus, 0); - ebcdic_put(sysib.name, "QEMU ", 8); - stl_p(&sysib.caf, 1000); - stw_p(&sysib.dedicated_cpus, 0); - stw_p(&sysib.shared_cpus, 0); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); - } else { - cc = 3; - } - break; + case STSI_R0_FC_LEVEL_2: + if ((sel1 == 2) && (sel2 == 1)) { + /* LPAR CPU */ + ebcdic_put(sysib.sysib_221.sequence, "QEMUQEMUQEMUQEMU", 16); + ebcdic_put(sysib.sysib_221.plant, "QEMU", 4); + sysib.sysib_221.cpu_addr = cpu_to_be16(env->core_id); + } else if ((sel1 == 2) && (sel2 == 2)) { + /* LPAR CPUs */ + sysib.sysib_222.lcpuc = 0x80; /* dedicated */ + sysib.sysib_222.total_cpus = cpu_to_be16(total_cpus); + sysib.sysib_222.conf_cpus = cpu_to_be16(conf_cpus); + sysib.sysib_222.reserved_cpus = cpu_to_be16(reserved_cpus); + ebcdic_put(sysib.sysib_222.name, "QEMU ", 8); + sysib.sysib_222.caf = cpu_to_be32(1000); + sysib.sysib_222.dedicated_cpus = cpu_to_be16(conf_cpus); + } else { + cc = 3; } - case STSI_LEVEL_3: - { - if ((sel1 == 2) && (sel2 == 2)) { - /* VM CPUs */ - struct sysib_322 sysib; - - memset(&sysib, 0, sizeof(sysib)); - sysib.count = 1; - /* XXX change when SMP comes */ - stw_p(&sysib.vm[0].total_cpus, 1); - stw_p(&sysib.vm[0].conf_cpus, 1); - stw_p(&sysib.vm[0].standby_cpus, 0); - stw_p(&sysib.vm[0].reserved_cpus, 0); - ebcdic_put(sysib.vm[0].name, "KVMguest", 8); - stl_p(&sysib.vm[0].caf, 1000); - ebcdic_put(sysib.vm[0].cpi, "KVM/Linux ", 16); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); + break; + case STSI_R0_FC_LEVEL_3: + if ((sel1 == 2) && (sel2 == 2)) { + /* VM CPUs */ + sysib.sysib_322.count = 1; + sysib.sysib_322.vm[0].total_cpus = cpu_to_be16(total_cpus); + sysib.sysib_322.vm[0].conf_cpus = cpu_to_be16(conf_cpus); + sysib.sysib_322.vm[0].reserved_cpus = cpu_to_be16(reserved_cpus); + sysib.sysib_322.vm[0].caf = cpu_to_be32(1000); + /* Linux kernel uses this to distinguish us from z/VM */ + ebcdic_put(sysib.sysib_322.vm[0].cpi, "KVM/Linux ", 16); + sysib.sysib_322.vm[0].ext_name_encoding = 2; /* UTF-8 */ + + /* If our VM has a name, use the real name */ + if (qemu_name) { + memset(sysib.sysib_322.vm[0].name, 0x40, + sizeof(sysib.sysib_322.vm[0].name)); + ebcdic_put(sysib.sysib_322.vm[0].name, qemu_name, + MIN(sizeof(sysib.sysib_322.vm[0].name), + strlen(qemu_name))); + strncpy((char *)sysib.sysib_322.ext_names[0], qemu_name, + sizeof(sysib.sysib_322.ext_names[0])); } else { - cc = 3; + ebcdic_put(sysib.sysib_322.vm[0].name, "TCGguest", 8); + strcpy((char *)sysib.sysib_322.ext_names[0], "TCGguest"); } - break; + + /* add the uuid */ + memcpy(sysib.sysib_322.vm[0].uuid, &qemu_uuid, + sizeof(sysib.sysib_322.vm[0].uuid)); + } else { + cc = 3; } - case STSI_LEVEL_CURRENT: - env->regs[0] = STSI_LEVEL_3; - break; - default: - cc = 3; break; } + if (cc == 0) { + if (s390_cpu_virt_mem_write(cpu, a0, 0, &sysib, sizeof(sysib))) { + s390_cpu_virt_mem_handle_exc(cpu, ra); + } + } + return cc; } @@ -429,6 +449,59 @@ void HELPER(stsch)(CPUS390XState *env, uint64_t r1, uint64_t inst) qemu_mutex_unlock_iothread(); } +uint32_t HELPER(tpi)(CPUS390XState *env, uint64_t addr) +{ + const uintptr_t ra = GETPC(); + S390CPU *cpu = s390_env_get_cpu(env); + QEMUS390FLICState *flic = s390_get_qemu_flic(s390_get_flic()); + QEMUS390FlicIO *io = NULL; + LowCore *lowcore; + + if (addr & 0x3) { + s390_program_interrupt(env, PGM_SPECIFICATION, 4, ra); + } + + qemu_mutex_lock_iothread(); + io = qemu_s390_flic_dequeue_io(flic, env->cregs[6]); + if (!io) { + qemu_mutex_unlock_iothread(); + return 0; + } + + if (addr) { + struct { + uint16_t id; + uint16_t nr; + uint32_t parm; + } intc = { + .id = cpu_to_be16(io->id), + .nr = cpu_to_be16(io->nr), + .parm = cpu_to_be32(io->parm), + }; + + if (s390_cpu_virt_mem_write(cpu, addr, 0, &intc, sizeof(intc))) { + /* writing failed, reinject and properly clean up */ + s390_io_interrupt(io->id, io->nr, io->parm, io->word); + qemu_mutex_unlock_iothread(); + g_free(io); + s390_cpu_virt_mem_handle_exc(cpu, ra); + return 0; + } + } else { + /* no protection applies */ + lowcore = cpu_map_lowcore(env); + lowcore->subchannel_id = cpu_to_be16(io->id); + lowcore->subchannel_nr = cpu_to_be16(io->nr); + lowcore->io_int_parm = cpu_to_be32(io->parm); + lowcore->io_int_word = cpu_to_be32(io->word); + cpu_unmap_lowcore(lowcore); + } + + g_free(io); + qemu_mutex_unlock_iothread(); + return 1; +} + void HELPER(tsch)(CPUS390XState *env, uint64_t r1, uint64_t inst) { S390CPU *cpu = s390_env_get_cpu(env); @@ -560,3 +633,91 @@ uint32_t HELPER(stfle)(CPUS390XState *env, uint64_t addr) env->regs[0] = deposit64(env->regs[0], 0, 8, (max_bytes / 8) - 1); return count_bytes >= max_bytes ? 0 : 3; } + +#ifndef CONFIG_USER_ONLY +/* + * Note: we ignore any return code of the functions called for the pci + * instructions, as the only time they return !0 is when the stub is + * called, and in that case we didn't even offer the zpci facility. + * The only exception is SIC, where program checks need to be handled + * by the caller. + */ +void HELPER(clp)(CPUS390XState *env, uint32_t r2) +{ + S390CPU *cpu = s390_env_get_cpu(env); + + qemu_mutex_lock_iothread(); + clp_service_call(cpu, r2, GETPC()); + qemu_mutex_unlock_iothread(); +} + +void HELPER(pcilg)(CPUS390XState *env, uint32_t r1, uint32_t r2) +{ + S390CPU *cpu = s390_env_get_cpu(env); + + qemu_mutex_lock_iothread(); + pcilg_service_call(cpu, r1, r2, GETPC()); + qemu_mutex_unlock_iothread(); +} + +void HELPER(pcistg)(CPUS390XState *env, uint32_t r1, uint32_t r2) +{ + S390CPU *cpu = s390_env_get_cpu(env); + + qemu_mutex_lock_iothread(); + pcistg_service_call(cpu, r1, r2, GETPC()); + qemu_mutex_unlock_iothread(); +} + +void HELPER(stpcifc)(CPUS390XState *env, uint32_t r1, uint64_t fiba, + uint32_t ar) +{ + S390CPU *cpu = s390_env_get_cpu(env); + + qemu_mutex_lock_iothread(); + stpcifc_service_call(cpu, r1, fiba, ar, GETPC()); + qemu_mutex_unlock_iothread(); +} + +void HELPER(sic)(CPUS390XState *env, uint64_t r1, uint64_t r3) +{ + int r; + + qemu_mutex_lock_iothread(); + r = css_do_sic(env, (r3 >> 27) & 0x7, r1 & 0xffff); + qemu_mutex_unlock_iothread(); + /* css_do_sic() may actually return a PGM_xxx value to inject */ + if (r) { + s390_program_interrupt(env, -r, 4, GETPC()); + } +} + +void HELPER(rpcit)(CPUS390XState *env, uint32_t r1, uint32_t r2) +{ + S390CPU *cpu = s390_env_get_cpu(env); + + qemu_mutex_lock_iothread(); + rpcit_service_call(cpu, r1, r2, GETPC()); + qemu_mutex_unlock_iothread(); +} + +void HELPER(pcistb)(CPUS390XState *env, uint32_t r1, uint32_t r3, + uint64_t gaddr, uint32_t ar) +{ + S390CPU *cpu = s390_env_get_cpu(env); + + qemu_mutex_lock_iothread(); + pcistb_service_call(cpu, r1, r3, gaddr, ar, GETPC()); + qemu_mutex_unlock_iothread(); +} + +void HELPER(mpcifc)(CPUS390XState *env, uint32_t r1, uint64_t fiba, + uint32_t ar) +{ + S390CPU *cpu = s390_env_get_cpu(env); + + qemu_mutex_lock_iothread(); + mpcifc_service_call(cpu, r1, fiba, ar, GETPC()); + qemu_mutex_unlock_iothread(); +} +#endif diff --git a/target/s390x/translate.c b/target/s390x/translate.c index df0b416..b470d69 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -4199,6 +4199,14 @@ static ExitStatus op_stcrw(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_tpi(DisasContext *s, DisasOps *o) +{ + check_privileged(s); + gen_helper_tpi(cc_op, cpu_env, o->addr1); + set_cc_static(s); + return NO_EXIT; +} + static ExitStatus op_tsch(DisasContext *s, DisasOps *o) { check_privileged(s); @@ -4777,6 +4785,106 @@ static ExitStatus op_zero2(DisasContext *s, DisasOps *o) return NO_EXIT; } +#ifndef CONFIG_USER_ONLY +static ExitStatus op_clp(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r2 = tcg_const_i32(get_field(s->fields, r2)); + + check_privileged(s); + gen_helper_clp(cpu_env, r2); + tcg_temp_free_i32(r2); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_pcilg(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); + TCGv_i32 r2 = tcg_const_i32(get_field(s->fields, r2)); + + check_privileged(s); + gen_helper_pcilg(cpu_env, r1, r2); + tcg_temp_free_i32(r1); + tcg_temp_free_i32(r2); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_pcistg(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); + TCGv_i32 r2 = tcg_const_i32(get_field(s->fields, r2)); + + check_privileged(s); + gen_helper_pcistg(cpu_env, r1, r2); + tcg_temp_free_i32(r1); + tcg_temp_free_i32(r2); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_stpcifc(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); + TCGv_i32 ar = tcg_const_i32(get_field(s->fields, b2)); + + check_privileged(s); + gen_helper_stpcifc(cpu_env, r1, o->addr1, ar); + tcg_temp_free_i32(ar); + tcg_temp_free_i32(r1); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_sic(DisasContext *s, DisasOps *o) +{ + check_privileged(s); + gen_helper_sic(cpu_env, o->in1, o->in2); + return NO_EXIT; +} + +static ExitStatus op_rpcit(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); + TCGv_i32 r2 = tcg_const_i32(get_field(s->fields, r2)); + + check_privileged(s); + gen_helper_rpcit(cpu_env, r1, r2); + tcg_temp_free_i32(r1); + tcg_temp_free_i32(r2); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_pcistb(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)); + TCGv_i32 ar = tcg_const_i32(get_field(s->fields, b2)); + + check_privileged(s); + gen_helper_pcistb(cpu_env, r1, r3, o->addr1, ar); + tcg_temp_free_i32(ar); + tcg_temp_free_i32(r1); + tcg_temp_free_i32(r3); + set_cc_static(s); + return NO_EXIT; +} + +static ExitStatus op_mpcifc(DisasContext *s, DisasOps *o) +{ + TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1)); + TCGv_i32 ar = tcg_const_i32(get_field(s->fields, b2)); + + check_privileged(s); + gen_helper_mpcifc(cpu_env, r1, o->addr1, ar); + tcg_temp_free_i32(ar); + tcg_temp_free_i32(r1); + set_cc_static(s); + return NO_EXIT; +} +#endif + /* ====================================================================== */ /* The "Cc OUTput" generators. Given the generated output (and in some cases the original inputs), update the various cc data structures in order to @@ -5708,6 +5816,8 @@ enum DisasInsnEnum { #define FAC_MSA4 S390_FEAT_MSA_EXT_4 /* msa-extension-4 facility */ #define FAC_MSA5 S390_FEAT_MSA_EXT_5 /* msa-extension-5 facility */ #define FAC_ECT S390_FEAT_EXTRACT_CPU_TIME +#define FAC_PCI S390_FEAT_ZPCI /* z/PCI facility */ +#define FAC_AIS S390_FEAT_ADAPTER_INT_SUPPRESSION static const DisasInsn insn_info[] = { #include "insn-data.def" |