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authorMatthew Rosato <mjrosato@linux.ibm.com>2022-09-02 13:27:35 -0400
committerThomas Huth <thuth@redhat.com>2022-09-26 17:23:47 +0200
commit30dcf4f7fd23bef7d72a2454c60881710fd4c785 (patch)
treefd4fb90ecb44ea7e5026e861ed2cec923ae193f6 /hw/s390x/s390-pci-bus.c
parentd0bc7091c2013ad2fa164100cf7b17962370e8ab (diff)
s390x/pci: let intercept devices have separate PCI groups
Let's use the reserved pool of simulated PCI groups to allow intercept devices to have separate groups from interpreted devices as some group values may be different. If we run out of simulated PCI groups, subsequent intercept devices just get the default group. Furthermore, if we encounter any PCI groups from hostdevs that are marked as simulated, let's just assign them to the default group to avoid conflicts between host simulated groups and our own simulated groups. Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> Reviewed-by: Pierre Morel <pmorel@linux.ibm.com> Message-Id: <20220902172737.170349-7-mjrosato@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'hw/s390x/s390-pci-bus.c')
-rw-r--r--hw/s390x/s390-pci-bus.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 2f19973913..977e7daa15 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -748,13 +748,14 @@ static void s390_pci_iommu_free(S390pciState *s, PCIBus *bus, int32_t devfn)
object_unref(OBJECT(iommu));
}
-S390PCIGroup *s390_group_create(int id)
+S390PCIGroup *s390_group_create(int id, int host_id)
{
S390PCIGroup *group;
S390pciState *s = s390_get_phb();
group = g_new0(S390PCIGroup, 1);
group->id = id;
+ group->host_id = host_id;
QTAILQ_INSERT_TAIL(&s->zpci_groups, group, link);
return group;
}
@@ -772,12 +773,25 @@ S390PCIGroup *s390_group_find(int id)
return NULL;
}
+S390PCIGroup *s390_group_find_host_sim(int host_id)
+{
+ S390PCIGroup *group;
+ S390pciState *s = s390_get_phb();
+
+ QTAILQ_FOREACH(group, &s->zpci_groups, link) {
+ if (group->id >= ZPCI_SIM_GRP_START && group->host_id == host_id) {
+ return group;
+ }
+ }
+ return NULL;
+}
+
static void s390_pci_init_default_group(void)
{
S390PCIGroup *group;
ClpRspQueryPciGrp *resgrp;
- group = s390_group_create(ZPCI_DEFAULT_FN_GRP);
+ group = s390_group_create(ZPCI_DEFAULT_FN_GRP, ZPCI_DEFAULT_FN_GRP);
resgrp = &group->zpci_group;
resgrp->fr = 1;
resgrp->dasm = 0;
@@ -825,6 +839,7 @@ static void s390_pcihost_realize(DeviceState *dev, Error **errp)
NULL, g_free);
s->zpci_table = g_hash_table_new_full(g_int_hash, g_int_equal, NULL, NULL);
s->bus_no = 0;
+ s->next_sim_grp = ZPCI_SIM_GRP_START;
QTAILQ_INIT(&s->pending_sei);
QTAILQ_INIT(&s->zpci_devs);
QTAILQ_INIT(&s->zpci_dma_limit);