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- Fix s390x ISM reset

Browse source 
- Remove deprecated CLI options -no-hpet, -no-acpi, -async-teardown,
   -chroot and -singlestep
 - Fix installation of the netbsd VM
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Merge tag 'pull-request-2024-01-19' of https://gitlab.com/thuth/qemu into staging

- Fix s390x ISM reset
- Remove deprecated CLI options -no-hpet, -no-acpi, -async-teardown,
  -chroot and -singlestep
- Fix installation of the netbsd VM

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# gpg: Signature made Fri 19 Jan 2024 15:21:49 GMT
# 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 <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2024-01-19' of https://gitlab.com/thuth/qemu:
  tests/vm/netbsd: Remove missing py311-expat package
  cli: Remove deprecated '-singlestep' command line option
  hmp: Remove deprecated 'singlestep' command
  qapi: Remove deprecated 'singlestep' member of StatusInfo
  qemu-options: Remove the deprecated -chroot option
  qemu-options: Remove the deprecated -async-teardown option
  qemu-options: Remove the deprecated -no-acpi option
  qemu-options: Remove the deprecated -no-hpet option
  s390x/pci: drive ISM reset from subsystem reset
  s390x/pci: refresh fh before disabling aif
  s390x/pci: avoid double enable/disable of aif

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2024-01-20 17:22:15 +00:00
commit 09be347171
22 changed files with 121 additions and 212 deletions
Download patch file Download diff file Expand all files Collapse all files

26
hw/s390x/s390-pci-bus.c
View file

@ -151,20 +151,12 @@ static void s390_pci_shutdown_notifier(Notifier *n, void *opaque)
pci_device_reset(pbdev->pdev);
}
static void s390_pci_reset_cb(void *opaque)
{
S390PCIBusDevice *pbdev = opaque;
pci_device_reset(pbdev->pdev);
}
static void s390_pci_perform_unplug(S390PCIBusDevice *pbdev)
{
HotplugHandler *hotplug_ctrl;
if (pbdev->pft == ZPCI_PFT_ISM) {
notifier_remove(&pbdev->shutdown_notifier);
qemu_unregister_reset(s390_pci_reset_cb, pbdev);
}
/* Unplug the PCI device */
@ -1132,7 +1124,6 @@ static void s390_pcihost_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
if (pbdev->pft == ZPCI_PFT_ISM) {
pbdev->shutdown_notifier.notify = s390_pci_shutdown_notifier;
qemu_register_shutdown_notifier(&pbdev->shutdown_notifier);
qemu_register_reset(s390_pci_reset_cb, pbdev);
}
} else {
pbdev->fh |= FH_SHM_EMUL;
@ -1279,6 +1270,23 @@ static void s390_pci_enumerate_bridge(PCIBus *bus, PCIDevice *pdev,
pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, s->bus_no, 1);
}
void s390_pci_ism_reset(void)
{
S390pciState *s = s390_get_phb();
S390PCIBusDevice *pbdev, *next;
/* Trigger reset event for each passthrough ISM device currently in-use */
QTAILQ_FOREACH_SAFE(pbdev, &s->zpci_devs, link, next) {
if (pbdev->interp && pbdev->pft == ZPCI_PFT_ISM &&
pbdev->fh & FH_MASK_ENABLE) {
s390_pci_kvm_aif_disable(pbdev);
pci_device_reset(pbdev->pdev);
}
}
}
static void s390_pcihost_reset(DeviceState *dev)
{
S390pciState *s = S390_PCI_HOST_BRIDGE(dev);

34
hw/s390x/s390-pci-kvm.c
View file

@ -18,6 +18,7 @@
#include "hw/s390x/s390-pci-bus.h"
#include "hw/s390x/s390-pci-kvm.h"
#include "hw/s390x/s390-pci-inst.h"
#include "hw/s390x/s390-pci-vfio.h"
#include "cpu_models.h"
bool s390_pci_kvm_interp_allowed(void)
@ -27,6 +28,7 @@ bool s390_pci_kvm_interp_allowed(void)
int s390_pci_kvm_aif_enable(S390PCIBusDevice *pbdev, ZpciFib *fib, bool assist)
{
int rc;
struct kvm_s390_zpci_op args = {
.fh = pbdev->fh,
.op = KVM_S390_ZPCIOP_REG_AEN,
@ -38,15 +40,43 @@ int s390_pci_kvm_aif_enable(S390PCIBusDevice *pbdev, ZpciFib *fib, bool assist)
.u.reg_aen.flags = (assist) ? 0 : KVM_S390_ZPCIOP_REGAEN_HOST
};
return kvm_vm_ioctl(kvm_state, KVM_S390_ZPCI_OP, &args);
if (pbdev->aif) {
return -EINVAL;
}
rc = kvm_vm_ioctl(kvm_state, KVM_S390_ZPCI_OP, &args);
if (rc == 0) {
pbdev->aif = true;
}
return rc;
}
int s390_pci_kvm_aif_disable(S390PCIBusDevice *pbdev)
{
int rc;
struct kvm_s390_zpci_op args = {
.fh = pbdev->fh,
.op = KVM_S390_ZPCIOP_DEREG_AEN
};
return kvm_vm_ioctl(kvm_state, KVM_S390_ZPCI_OP, &args);
if (!pbdev->aif) {
return -EINVAL;
}
/*
* The device may have already been reset but we still want to relinquish
* the guest ISC, so always be sure to use an up-to-date host fh.
*/
if (!s390_pci_get_host_fh(pbdev, &args.fh)) {
return -EPERM;
}
rc = kvm_vm_ioctl(kvm_state, KVM_S390_ZPCI_OP, &args);
if (rc == 0) {
pbdev->aif = false;
}
return rc;
}

8
hw/s390x/s390-virtio-ccw.c
View file

@ -118,6 +118,14 @@ static void subsystem_reset(void)
DeviceState *dev;
int i;
/*
* ISM firmware is sensitive to unexpected changes to the IOMMU, which can
* occur during reset of the vfio-pci device (unmap of entire aperture).
* Ensure any passthrough ISM devices are reset now, while CPUs are paused
* but before vfio-pci cleanup occurs.
*/
s390_pci_ism_reset();
for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
if (dev) {