diff --git a/arch/arm64/configs/vendor/genericarmv8-64_defconfig b/arch/arm64/configs/vendor/genericarmv8-64_defconfig index 4d9ec5cead7a..86c800499728 100644 --- a/arch/arm64/configs/vendor/genericarmv8-64_defconfig +++ b/arch/arm64/configs/vendor/genericarmv8-64_defconfig @@ -275,6 +275,7 @@ CONFIG_HH_CTRL=y CONFIG_HH_MSGQ=y CONFIG_HH_RM_DRV=y CONFIG_HH_DBL=y +CONFIG_HH_IRQ_LEND=y CONFIG_HH_MEM_NOTIFIER=y CONFIG_VIRTIO_PCI=y CONFIG_VIRTIO_BALLOON=y diff --git a/arch/arm64/configs/vendor/lahaina_GKI.config b/arch/arm64/configs/vendor/lahaina_GKI.config index 23c81197ef2f..2abeddbceae7 100644 --- a/arch/arm64/configs/vendor/lahaina_GKI.config +++ b/arch/arm64/configs/vendor/lahaina_GKI.config @@ -204,3 +204,4 @@ CONFIG_SPS=m CONFIG_SPS_SUPPORT_NDP_BAM=y # CONFIG_SPS_SUPPORT_BAMDMA is not set # CONFIG_USB_BAM is not set +CONFIG_HH_IRQ_LEND=m diff --git a/drivers/virt/haven/hh_irq_lend.c b/drivers/virt/haven/hh_irq_lend.c index 1dd094d6b836..9fbbb8c205dd 100644 --- a/drivers/virt/haven/hh_irq_lend.c +++ b/drivers/virt/haven/hh_irq_lend.c @@ -16,6 +16,7 @@ struct hh_irq_entry { hh_vmid_t vmid; + enum hh_vm_names vm_name; hh_irq_handle_fn handle; void *data; @@ -80,12 +81,21 @@ static int hh_irq_lent_nb_handler(struct notifier_block *this, { unsigned long flags; enum hh_irq_label label; + enum hh_vm_names owner_name; struct hh_irq_entry *entry; struct hh_rm_notif_vm_irq_lent_payload *lent = data; + int ret; if (cmd != HH_RM_NOTIF_VM_IRQ_LENT) return NOTIFY_DONE; + ret = hh_rm_get_vm_name(lent->owner_vmid, &owner_name); + if (ret) { + pr_warn_ratelimited("%s: unknown name for vmid: %d\n", __func__, + lent->owner_vmid); + return ret; + } + spin_lock_irqsave(&hh_irq_lend_lock, flags); for (label = 0; label < HH_IRQ_LABEL_MAX; label++) { entry = &hh_irq_entries[label]; @@ -93,8 +103,8 @@ static int hh_irq_lent_nb_handler(struct notifier_block *this, continue; if (label == lent->virq_label && - (entry->vmid == HH_VM_MAX || - entry->vmid == lent->owner_vmid)) { + (entry->vm_name == HH_VM_MAX || + entry->vm_name == owner_name)) { entry->vmid = lent->owner_vmid; entry->virq_handle = lent->virq_handle; @@ -207,7 +217,6 @@ EXPORT_SYMBOL(hh_irq_reclaim); int hh_irq_wait_for_lend(enum hh_irq_label label, enum hh_vm_names name, hh_irq_handle_fn on_lend, void *data) { - int ret; unsigned long flags; struct hh_irq_entry *entry; @@ -222,19 +231,13 @@ int hh_irq_wait_for_lend(enum hh_irq_label label, enum hh_vm_names name, return -EINVAL; } - ret = hh_rm_get_vmid(name, &entry->vmid); - if (ret) { - entry->state = HH_IRQ_STATE_NONE; - spin_unlock_irqrestore(&hh_irq_lend_lock, flags); - return ret; - } - + entry->vm_name = name; entry->handle = on_lend; entry->data = data; entry->state = HH_IRQ_STATE_WAIT_LEND; spin_unlock_irqrestore(&hh_irq_lend_lock, flags); - return ret; + return 0; } EXPORT_SYMBOL(hh_irq_wait_for_lend); @@ -304,7 +307,7 @@ int hh_irq_release(enum hh_irq_label label) ret = hh_rm_vm_irq_release_notify(entry->vmid, entry->virq_handle); if (!ret) - entry->state = HH_IRQ_STATE_NONE; + entry->state = HH_IRQ_STATE_WAIT_LEND; return ret; } EXPORT_SYMBOL(hh_irq_release); diff --git a/drivers/virt/haven/hh_rm_iface.c b/drivers/virt/haven/hh_rm_iface.c index ee8f4a5f5064..cac9f7346006 100644 --- a/drivers/virt/haven/hh_rm_iface.c +++ b/drivers/virt/haven/hh_rm_iface.c @@ -194,6 +194,7 @@ out: kfree(resp_payload); return ret; } +EXPORT_SYMBOL(hh_rm_vm_irq_accept); /** * hh_rm_vm_irq_lend: Lend an IRQ to another VM @@ -333,6 +334,7 @@ int hh_rm_vm_irq_lend_notify(hh_vmid_t vmid, int virq, int label, return hh_rm_vm_irq_notify(&vmid, 1, HH_VM_IRQ_NOTIFY_FLAGS_LENT, *virq_handle); } +EXPORT_SYMBOL(hh_rm_vm_irq_lend_notify); /** * hh_rm_vm_irq_release: Return a lent IRQ @@ -371,6 +373,7 @@ static int hh_rm_vm_irq_release(hh_virq_handle_t virq_handle) return ret; } +EXPORT_SYMBOL(hh_rm_vm_irq_release); /** * hh_rm_vm_irq_release_notify: Release IRQ back to a VM and notify that it has @@ -389,6 +392,7 @@ int hh_rm_vm_irq_release_notify(hh_vmid_t vmid, hh_virq_handle_t virq_handle) return hh_rm_vm_irq_notify(NULL, 0, HH_VM_IRQ_NOTIFY_FLAGS_RELEASED, virq_handle); } +EXPORT_SYMBOL(hh_rm_vm_irq_release_notify); /** * hh_rm_vm_irq_reclaim: Return a lent IRQ @@ -427,6 +431,7 @@ int hh_rm_vm_irq_reclaim(hh_virq_handle_t virq_handle) return ret; } +EXPORT_SYMBOL(hh_rm_vm_irq_reclaim); /** * hh_rm_vm_alloc_vmid: Return a vmid associated with the vm loaded into