Merge tag 'pull-request-2024-06-24' of https://gitlab.com/thuth/qemu into staging
* s390x error reporting clean ups
* fix memleak in qos_fuzz.c
* use correct byte order for pid field in s390x dumps
* Add a CONFIG switch to disable legacy s390x CPUs
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# gpg: Signature made Mon 24 Jun 2024 02:01:08 AM PDT
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
* tag 'pull-request-2024-06-24' of https://gitlab.com/thuth/qemu:
target/s390x: Add a CONFIG switch to disable legacy CPUs
MAINTAINERS: Cover all tests/qtest/migration-* files
target/s390x/arch_dump: use correct byte order for pid
tests/qtest/fuzz: fix memleak in qos_fuzz.c
vfio/{ap, ccw}: Use warn_report_err() for IRQ notifier registration errors
vfio/ccw: Fix the missed unrealize() call in error path
vfio/ccw: Use the 'Error **errp' argument of vfio_ccw_realize()
s390x/css: Make S390CCWDeviceClass::realize return bool
hw/s390x/ccw: Remove local Error variable from s390_ccw_realize()
s390x/css: Make CCWDeviceClass::realize return bool
hw/s390x/ccw: Make s390_ccw_get_dev_info() return a bool
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index cef54de..f144b5a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3312,6 +3312,7 @@
F: docs/devel/qgraph.rst
F: docs/devel/qtest.rst
X: tests/qtest/bios-tables-test*
+X: tests/qtest/migration-*
Device Fuzzing
M: Alexander Bulekov <alxndr@bu.edu>
@@ -3408,7 +3409,7 @@
F: migration/
F: scripts/vmstate-static-checker.py
F: tests/vmstate-static-checker-data/
-F: tests/qtest/migration-test.c
+F: tests/qtest/migration-*
F: docs/devel/migration/
F: qapi/migration.json
F: tests/migration/
diff --git a/hw/s390x/ccw-device.c b/hw/s390x/ccw-device.c
index fb8c1ac..a7d682e 100644
--- a/hw/s390x/ccw-device.c
+++ b/hw/s390x/ccw-device.c
@@ -31,9 +31,10 @@
dev->subch_id.valid = true;
}
-static void ccw_device_realize(CcwDevice *dev, Error **errp)
+static bool ccw_device_realize(CcwDevice *dev, Error **errp)
{
ccw_device_refill_ids(dev);
+ return true;
}
static Property ccw_device_properties[] = {
diff --git a/hw/s390x/ccw-device.h b/hw/s390x/ccw-device.h
index 6dff952..5feeb0e 100644
--- a/hw/s390x/ccw-device.h
+++ b/hw/s390x/ccw-device.h
@@ -36,7 +36,7 @@
struct CCWDeviceClass {
DeviceClass parent_class;
void (*unplug)(HotplugHandler *, DeviceState *, Error **);
- void (*realize)(CcwDevice *, Error **);
+ bool (*realize)(CcwDevice *, Error **);
void (*refill_ids)(CcwDevice *);
};
diff --git a/hw/s390x/s390-ccw.c b/hw/s390x/s390-ccw.c
index 5261e66..3c09750 100644
--- a/hw/s390x/s390-ccw.c
+++ b/hw/s390x/s390-ccw.c
@@ -71,7 +71,7 @@
return ret;
}
-static void s390_ccw_get_dev_info(S390CCWDevice *cdev,
+static bool s390_ccw_get_dev_info(S390CCWDevice *cdev,
char *sysfsdev,
Error **errp)
{
@@ -84,12 +84,12 @@
error_setg(errp, "No host device provided");
error_append_hint(errp,
"Use -device vfio-ccw,sysfsdev=PATH_TO_DEVICE\n");
- return;
+ return false;
}
if (!realpath(sysfsdev, dev_path)) {
error_setg_errno(errp, errno, "Host device '%s' not found", sysfsdev);
- return;
+ return false;
}
cdev->mdevid = g_path_get_basename(dev_path);
@@ -98,30 +98,29 @@
tmp = g_path_get_basename(tmp_dir);
if (sscanf(tmp, "%2x.%1x.%4x", &cssid, &ssid, &devid) != 3) {
error_setg_errno(errp, errno, "Failed to read %s", tmp);
- return;
+ return false;
}
cdev->hostid.cssid = cssid;
cdev->hostid.ssid = ssid;
cdev->hostid.devid = devid;
cdev->hostid.valid = true;
+ return true;
}
-static void s390_ccw_realize(S390CCWDevice *cdev, char *sysfsdev, Error **errp)
+static bool s390_ccw_realize(S390CCWDevice *cdev, char *sysfsdev, Error **errp)
{
CcwDevice *ccw_dev = CCW_DEVICE(cdev);
CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev);
DeviceState *parent = DEVICE(ccw_dev);
SubchDev *sch;
int ret;
- Error *err = NULL;
- s390_ccw_get_dev_info(cdev, sysfsdev, &err);
- if (err) {
- goto out_err_propagate;
+ if (!s390_ccw_get_dev_info(cdev, sysfsdev, errp)) {
+ return false;
}
- sch = css_create_sch(ccw_dev->devno, &err);
+ sch = css_create_sch(ccw_dev->devno, errp);
if (!sch) {
goto out_mdevid_free;
}
@@ -132,19 +131,18 @@
ccw_dev->sch = sch;
ret = css_sch_build_schib(sch, &cdev->hostid);
if (ret) {
- error_setg_errno(&err, -ret, "%s: Failed to build initial schib",
+ error_setg_errno(errp, -ret, "%s: Failed to build initial schib",
__func__);
goto out_err;
}
- ck->realize(ccw_dev, &err);
- if (err) {
+ if (!ck->realize(ccw_dev, errp)) {
goto out_err;
}
css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
parent->hotplugged, 1);
- return;
+ return true;
out_err:
css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
@@ -152,8 +150,7 @@
g_free(sch);
out_mdevid_free:
g_free(cdev->mdevid);
-out_err_propagate:
- error_propagate(errp, err);
+ return false;
}
static void s390_ccw_unrealize(S390CCWDevice *cdev)
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 3d0bc3e..cd063f8 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -47,6 +47,7 @@
#include "migration/blocker.h"
#include "qapi/visitor.h"
#include "hw/s390x/cpu-topology.h"
+#include CONFIG_DEVICES
static Error *pv_mig_blocker;
@@ -1126,6 +1127,8 @@
}
DEFINE_CCW_MACHINE(2_12, "2.12", false);
+#ifdef CONFIG_S390X_LEGACY_CPUS
+
static void ccw_machine_2_11_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
@@ -1272,6 +1275,8 @@
}
DEFINE_CCW_MACHINE(2_4, "2.4", false);
+#endif
+
static void ccw_machine_register_types(void)
{
type_register_static(&ccw_machine_info);
diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c
index c12531a..0c4354e 100644
--- a/hw/vfio/ap.c
+++ b/hw/vfio/ap.c
@@ -172,7 +172,7 @@
* Report this error, but do not make it a failing condition.
* Lack of this IRQ in the host does not prevent normal operation.
*/
- error_report_err(err);
+ warn_report_err(err);
}
return;
diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index 2600e62..1f8e127 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -582,14 +582,13 @@
/* Call the class init function for subchannel. */
if (cdc->realize) {
- cdc->realize(cdev, vcdev->vdev.sysfsdev, &err);
- if (err) {
- goto out_err_propagate;
+ if (!cdc->realize(cdev, vcdev->vdev.sysfsdev, errp)) {
+ return;
}
}
if (!vfio_device_get_name(vbasedev, errp)) {
- return;
+ goto out_unrealize;
}
if (!vfio_attach_device(cdev->mdevid, vbasedev,
@@ -597,17 +596,17 @@
goto out_attach_dev_err;
}
- if (!vfio_ccw_get_region(vcdev, &err)) {
+ if (!vfio_ccw_get_region(vcdev, errp)) {
goto out_region_err;
}
- if (!vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_IO_IRQ_INDEX, &err)) {
+ if (!vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_IO_IRQ_INDEX, errp)) {
goto out_io_notifier_err;
}
if (vcdev->crw_region) {
if (!vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_CRW_IRQ_INDEX,
- &err)) {
+ errp)) {
goto out_irq_notifier_err;
}
}
@@ -617,7 +616,7 @@
* Report this error, but do not make it a failing condition.
* Lack of this IRQ in the host does not prevent normal operation.
*/
- error_report_err(err);
+ warn_report_err(err);
}
return;
@@ -632,11 +631,10 @@
vfio_detach_device(vbasedev);
out_attach_dev_err:
g_free(vbasedev->name);
+out_unrealize:
if (cdc->unrealize) {
cdc->unrealize(cdev);
}
-out_err_propagate:
- error_propagate(errp, err);
}
static void vfio_ccw_unrealize(DeviceState *dev)
diff --git a/include/hw/s390x/s390-ccw.h b/include/hw/s390x/s390-ccw.h
index 2c807ee..2e0a709 100644
--- a/include/hw/s390x/s390-ccw.h
+++ b/include/hw/s390x/s390-ccw.h
@@ -31,7 +31,7 @@
struct S390CCWDeviceClass {
CCWDeviceClass parent_class;
- void (*realize)(S390CCWDevice *dev, char *sysfsdev, Error **errp);
+ bool (*realize)(S390CCWDevice *dev, char *sysfsdev, Error **errp);
void (*unrealize)(S390CCWDevice *dev);
IOInstEnding (*handle_request) (SubchDev *sch);
int (*handle_halt) (SubchDev *sch);
diff --git a/target/s390x/Kconfig b/target/s390x/Kconfig
index d886be4..8a95f2b 100644
--- a/target/s390x/Kconfig
+++ b/target/s390x/Kconfig
@@ -2,3 +2,8 @@
bool
select PCI
select S390_FLIC
+
+config S390X_LEGACY_CPUS
+ bool
+ default y
+ depends on S390X
diff --git a/target/s390x/arch_dump.c b/target/s390x/arch_dump.c
index 7e8a1b4..029d91d 100644
--- a/target/s390x/arch_dump.c
+++ b/target/s390x/arch_dump.c
@@ -102,7 +102,7 @@
regs->acrs[i] = cpu_to_be32(cpu->env.aregs[i]);
regs->gprs[i] = cpu_to_be64(cpu->env.regs[i]);
}
- note->contents.prstatus.pid = id;
+ note->contents.prstatus.pid = cpu_to_be32(id);
}
static void s390x_write_elf64_fpregset(Note *note, S390CPU *cpu, int id)
diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c
index efb508c..a27f4b6 100644
--- a/target/s390x/cpu_models.c
+++ b/target/s390x/cpu_models.c
@@ -25,6 +25,7 @@
#ifndef CONFIG_USER_ONLY
#include "sysemu/sysemu.h"
#include "target/s390x/kvm/pv.h"
+#include CONFIG_DEVICES
#endif
#define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \
@@ -47,6 +48,13 @@
* generation 15 one base feature and one optional feature have been deprecated.
*/
static S390CPUDef s390_cpu_defs[] = {
+ /*
+ * Linux requires at least z10 nowadays, and IBM only supports recent CPUs
+ * (see https://www.ibm.com/support/pages/ibm-mainframe-life-cycle-history),
+ * so we consider older CPUs as legacy that can optionally be disabled via
+ * the CONFIG_S390X_LEGACY_CPUS config switch.
+ */
+#if defined(CONFIG_S390X_LEGACY_CPUS) || defined(CONFIG_USER_ONLY)
CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U, "z900", "IBM zSeries 900 GA1"),
CPUDEF_INIT(0x2064, 7, 2, 38, 0x00000000U, "z900.2", "IBM zSeries 900 GA2"),
CPUDEF_INIT(0x2064, 7, 3, 38, 0x00000000U, "z900.3", "IBM zSeries 900 GA3"),
@@ -64,6 +72,7 @@
CPUDEF_INIT(0x2096, 9, 2, 40, 0x00000000U, "z9BC", "IBM System z9 BC GA1"),
CPUDEF_INIT(0x2094, 9, 3, 40, 0x00000000U, "z9EC.3", "IBM System z9 EC GA3"),
CPUDEF_INIT(0x2096, 9, 3, 40, 0x00000000U, "z9BC.2", "IBM System z9 BC GA2"),
+#endif
CPUDEF_INIT(0x2097, 10, 1, 43, 0x00000000U, "z10EC", "IBM System z10 EC GA1"),
CPUDEF_INIT(0x2097, 10, 2, 43, 0x00000000U, "z10EC.2", "IBM System z10 EC GA2"),
CPUDEF_INIT(0x2098, 10, 2, 43, 0x00000000U, "z10BC", "IBM System z10 BC GA1"),
diff --git a/tests/qtest/fuzz/qos_fuzz.c b/tests/qtest/fuzz/qos_fuzz.c
index b71e945..d3839bf 100644
--- a/tests/qtest/fuzz/qos_fuzz.c
+++ b/tests/qtest/fuzz/qos_fuzz.c
@@ -180,6 +180,7 @@
fuzz_path_vec = path_vec;
} else {
+ g_string_free(cmd_line, true);
g_free(path_vec);
}
