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-rw-r--r--drivers/bus/fsl-mc/Makefile3
-rw-r--r--drivers/bus/fsl-mc/fsl-mc-private.h39
-rw-r--r--drivers/bus/fsl-mc/obj-api.c103
-rw-r--r--drivers/s390/cio/vfio_ccw_drv.c136
-rw-r--r--drivers/s390/cio/vfio_ccw_ops.c142
-rw-r--r--drivers/s390/cio/vfio_ccw_private.h5
-rw-r--r--drivers/s390/crypto/vfio_ap_ops.c2
-rw-r--r--drivers/vfio/fsl-mc/vfio_fsl_mc.c62
-rw-r--r--drivers/vfio/mdev/mdev_driver.c45
-rw-r--r--drivers/vfio/mdev/vfio_mdev.c2
-rw-r--r--drivers/vfio/pci/vfio_pci_core.c13
-rw-r--r--drivers/vfio/pci/vfio_pci_igd.c234
-rw-r--r--drivers/vfio/platform/vfio_platform_common.c13
-rw-r--r--drivers/vfio/vfio.c622
-rw-r--r--drivers/vfio/vfio.h72
-rw-r--r--drivers/vfio/vfio_iommu_spapr_tce.c6
-rw-r--r--drivers/vfio/vfio_iommu_type1.c256
-rw-r--r--include/linux/fsl/mc.h14
-rw-r--r--include/linux/mdev.h20
-rw-r--r--include/linux/vfio.h53
-rw-r--r--samples/vfio-mdev/mbochs.c2
-rw-r--r--samples/vfio-mdev/mdpy.c2
-rw-r--r--samples/vfio-mdev/mtty.c2
23 files changed, 945 insertions, 903 deletions
diff --git a/drivers/bus/fsl-mc/Makefile b/drivers/bus/fsl-mc/Makefile
index 4ae292a30e53..892946245527 100644
--- a/drivers/bus/fsl-mc/Makefile
+++ b/drivers/bus/fsl-mc/Makefile
@@ -15,7 +15,8 @@ mc-bus-driver-objs := fsl-mc-bus.o \
dprc-driver.o \
fsl-mc-allocator.o \
fsl-mc-msi.o \
- dpmcp.o
+ dpmcp.o \
+ obj-api.o
# MC userspace support
obj-$(CONFIG_FSL_MC_UAPI_SUPPORT) += fsl-mc-uapi.o
diff --git a/drivers/bus/fsl-mc/fsl-mc-private.h b/drivers/bus/fsl-mc/fsl-mc-private.h
index 1958fa065360..b3520ea1b9f4 100644
--- a/drivers/bus/fsl-mc/fsl-mc-private.h
+++ b/drivers/bus/fsl-mc/fsl-mc-private.h
@@ -48,7 +48,6 @@ struct dpmng_rsp_get_version {
/* DPMCP command IDs */
#define DPMCP_CMDID_CLOSE DPMCP_CMD(0x800)
-#define DPMCP_CMDID_OPEN DPMCP_CMD(0x80b)
#define DPMCP_CMDID_RESET DPMCP_CMD(0x005)
struct dpmcp_cmd_open {
@@ -91,7 +90,6 @@ int dpmcp_reset(struct fsl_mc_io *mc_io,
/* DPRC command IDs */
#define DPRC_CMDID_CLOSE DPRC_CMD(0x800)
-#define DPRC_CMDID_OPEN DPRC_CMD(0x805)
#define DPRC_CMDID_GET_API_VERSION DPRC_CMD(0xa05)
#define DPRC_CMDID_GET_ATTR DPRC_CMD(0x004)
@@ -453,7 +451,6 @@ int dprc_get_connection(struct fsl_mc_io *mc_io,
/* Command IDs */
#define DPBP_CMDID_CLOSE DPBP_CMD(0x800)
-#define DPBP_CMDID_OPEN DPBP_CMD(0x804)
#define DPBP_CMDID_ENABLE DPBP_CMD(0x002)
#define DPBP_CMDID_DISABLE DPBP_CMD(0x003)
@@ -492,7 +489,6 @@ struct dpbp_rsp_get_attributes {
/* Command IDs */
#define DPCON_CMDID_CLOSE DPCON_CMD(0x800)
-#define DPCON_CMDID_OPEN DPCON_CMD(0x808)
#define DPCON_CMDID_ENABLE DPCON_CMD(0x002)
#define DPCON_CMDID_DISABLE DPCON_CMD(0x003)
@@ -524,6 +520,41 @@ struct dpcon_cmd_set_notification {
__le64 user_ctx;
};
+/*
+ * Generic FSL MC API
+ */
+
+/* generic command versioning */
+#define OBJ_CMD_BASE_VERSION 1
+#define OBJ_CMD_ID_OFFSET 4
+
+#define OBJ_CMD(id) (((id) << OBJ_CMD_ID_OFFSET) | OBJ_CMD_BASE_VERSION)
+
+/* open command codes */
+#define DPRTC_CMDID_OPEN OBJ_CMD(0x810)
+#define DPNI_CMDID_OPEN OBJ_CMD(0x801)
+#define DPSW_CMDID_OPEN OBJ_CMD(0x802)
+#define DPIO_CMDID_OPEN OBJ_CMD(0x803)
+#define DPBP_CMDID_OPEN OBJ_CMD(0x804)
+#define DPRC_CMDID_OPEN OBJ_CMD(0x805)
+#define DPDMUX_CMDID_OPEN OBJ_CMD(0x806)
+#define DPCI_CMDID_OPEN OBJ_CMD(0x807)
+#define DPCON_CMDID_OPEN OBJ_CMD(0x808)
+#define DPSECI_CMDID_OPEN OBJ_CMD(0x809)
+#define DPAIOP_CMDID_OPEN OBJ_CMD(0x80a)
+#define DPMCP_CMDID_OPEN OBJ_CMD(0x80b)
+#define DPMAC_CMDID_OPEN OBJ_CMD(0x80c)
+#define DPDCEI_CMDID_OPEN OBJ_CMD(0x80d)
+#define DPDMAI_CMDID_OPEN OBJ_CMD(0x80e)
+#define DPDBG_CMDID_OPEN OBJ_CMD(0x80f)
+
+/* Generic object command IDs */
+#define OBJ_CMDID_CLOSE OBJ_CMD(0x800)
+#define OBJ_CMDID_RESET OBJ_CMD(0x005)
+
+struct fsl_mc_obj_cmd_open {
+ __le32 obj_id;
+};
/**
* struct fsl_mc_resource_pool - Pool of MC resources of a given
diff --git a/drivers/bus/fsl-mc/obj-api.c b/drivers/bus/fsl-mc/obj-api.c
new file mode 100644
index 000000000000..06c1dd84e38d
--- /dev/null
+++ b/drivers/bus/fsl-mc/obj-api.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright 2021 NXP
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/fsl/mc.h>
+
+#include "fsl-mc-private.h"
+
+static int fsl_mc_get_open_cmd_id(const char *type)
+{
+ static const struct {
+ int cmd_id;
+ const char *type;
+ } dev_ids[] = {
+ { DPRTC_CMDID_OPEN, "dprtc" },
+ { DPRC_CMDID_OPEN, "dprc" },
+ { DPNI_CMDID_OPEN, "dpni" },
+ { DPIO_CMDID_OPEN, "dpio" },
+ { DPSW_CMDID_OPEN, "dpsw" },
+ { DPBP_CMDID_OPEN, "dpbp" },
+ { DPCON_CMDID_OPEN, "dpcon" },
+ { DPMCP_CMDID_OPEN, "dpmcp" },
+ { DPMAC_CMDID_OPEN, "dpmac" },
+ { DPSECI_CMDID_OPEN, "dpseci" },
+ { DPDMUX_CMDID_OPEN, "dpdmux" },
+ { DPDCEI_CMDID_OPEN, "dpdcei" },
+ { DPAIOP_CMDID_OPEN, "dpaiop" },
+ { DPCI_CMDID_OPEN, "dpci" },
+ { DPDMAI_CMDID_OPEN, "dpdmai" },
+ { DPDBG_CMDID_OPEN, "dpdbg" },
+ { 0, NULL }
+ };
+ int i;
+
+ for (i = 0; dev_ids[i].type; i++)
+ if (!strcmp(dev_ids[i].type, type))
+ return dev_ids[i].cmd_id;
+
+ return -1;
+}
+
+int fsl_mc_obj_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int obj_id,
+ char *obj_type,
+ u16 *token)
+{
+ struct fsl_mc_command cmd = { 0 };
+ struct fsl_mc_obj_cmd_open *cmd_params;
+ int err = 0;
+ int cmd_id = fsl_mc_get_open_cmd_id(obj_type);
+
+ if (cmd_id == -1)
+ return -ENODEV;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(cmd_id, cmd_flags, 0);
+ cmd_params = (struct fsl_mc_obj_cmd_open *)cmd.params;
+ cmd_params->obj_id = cpu_to_le32(obj_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(fsl_mc_obj_open);
+
+int fsl_mc_obj_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(OBJ_CMDID_CLOSE, cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL_GPL(fsl_mc_obj_close);
+
+int fsl_mc_obj_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(OBJ_CMDID_RESET, cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL_GPL(fsl_mc_obj_reset);
diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
index 76099bcb765b..040742777095 100644
--- a/drivers/s390/cio/vfio_ccw_drv.c
+++ b/drivers/s390/cio/vfio_ccw_drv.c
@@ -137,77 +137,107 @@ static void vfio_ccw_sch_irq(struct subchannel *sch)
vfio_ccw_fsm_event(private, VFIO_CCW_EVENT_INTERRUPT);
}
-static void vfio_ccw_free_regions(struct vfio_ccw_private *private)
+static struct vfio_ccw_private *vfio_ccw_alloc_private(struct subchannel *sch)
{
- if (private->crw_region)
- kmem_cache_free(vfio_ccw_crw_region, private->crw_region);
- if (private->schib_region)
- kmem_cache_free(vfio_ccw_schib_region, private->schib_region);
- if (private->cmd_region)
- kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
- if (private->io_region)
- kmem_cache_free(vfio_ccw_io_region, private->io_region);
-}
-
-static int vfio_ccw_sch_probe(struct subchannel *sch)
-{
- struct pmcw *pmcw = &sch->schib.pmcw;
struct vfio_ccw_private *private;
- int ret = -ENOMEM;
- if (pmcw->qf) {
- dev_warn(&sch->dev, "vfio: ccw: does not support QDIO: %s\n",
- dev_name(&sch->dev));
- return -ENODEV;
- }
-
- private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
+ private = kzalloc(sizeof(*private), GFP_KERNEL);
if (!private)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
+
+ private->sch = sch;
+ mutex_init(&private->io_mutex);
+ private->state = VFIO_CCW_STATE_NOT_OPER;
+ INIT_LIST_HEAD(&private->crw);
+ INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
+ INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);
+ atomic_set(&private->avail, 1);
private->cp.guest_cp = kcalloc(CCWCHAIN_LEN_MAX, sizeof(struct ccw1),
GFP_KERNEL);
if (!private->cp.guest_cp)
- goto out_free;
+ goto out_free_private;
private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,
GFP_KERNEL | GFP_DMA);
if (!private->io_region)
- goto out_free;
+ goto out_free_cp;
private->cmd_region = kmem_cache_zalloc(vfio_ccw_cmd_region,
GFP_KERNEL | GFP_DMA);
if (!private->cmd_region)
- goto out_free;
+ goto out_free_io;
private->schib_region = kmem_cache_zalloc(vfio_ccw_schib_region,
GFP_KERNEL | GFP_DMA);
if (!private->schib_region)
- goto out_free;
+ goto out_free_cmd;
private->crw_region = kmem_cache_zalloc(vfio_ccw_crw_region,
GFP_KERNEL | GFP_DMA);
if (!private->crw_region)
- goto out_free;
+ goto out_free_schib;
+ return private;
+
+out_free_schib:
+ kmem_cache_free(vfio_ccw_schib_region, private->schib_region);
+out_free_cmd:
+ kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
+out_free_io:
+ kmem_cache_free(vfio_ccw_io_region, private->io_region);
+out_free_cp:
+ kfree(private->cp.guest_cp);
+out_free_private:
+ mutex_destroy(&private->io_mutex);
+ kfree(private);
+ return ERR_PTR(-ENOMEM);
+}
+
+static void vfio_ccw_free_private(struct vfio_ccw_private *private)
+{
+ struct vfio_ccw_crw *crw, *temp;
+
+ list_for_each_entry_safe(crw, temp, &private->crw, next) {
+ list_del(&crw->next);
+ kfree(crw);
+ }
+
+ kmem_cache_free(vfio_ccw_crw_region, private->crw_region);
+ kmem_cache_free(vfio_ccw_schib_region, private->schib_region);
+ kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
+ kmem_cache_free(vfio_ccw_io_region, private->io_region);
+ kfree(private->cp.guest_cp);
+ mutex_destroy(&private->io_mutex);
+ kfree(private);
+}
+
+static int vfio_ccw_sch_probe(struct subchannel *sch)
+{
+ struct pmcw *pmcw = &sch->schib.pmcw;
+ struct vfio_ccw_private *private;
+ int ret = -ENOMEM;
+
+ if (pmcw->qf) {
+ dev_warn(&sch->dev, "vfio: ccw: does not support QDIO: %s\n",
+ dev_name(&sch->dev));
+ return -ENODEV;
+ }
+
+ private = vfio_ccw_alloc_private(sch);
+ if (IS_ERR(private))
+ return PTR_ERR(private);
- private->sch = sch;
dev_set_drvdata(&sch->dev, private);
- mutex_init(&private->io_mutex);
spin_lock_irq(sch->lock);
- private->state = VFIO_CCW_STATE_NOT_OPER;
sch->isc = VFIO_CCW_ISC;
ret = cio_enable_subchannel(sch, (u32)(unsigned long)sch);
spin_unlock_irq(sch->lock);
if (ret)
goto out_free;
- INIT_LIST_HEAD(&private->crw);
- INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
- INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);
- atomic_set(&private->avail, 1);
private->state = VFIO_CCW_STATE_STANDBY;
ret = vfio_ccw_mdev_reg(sch);
@@ -228,31 +258,20 @@ out_disable:
cio_disable_subchannel(sch);
out_free:
dev_set_drvdata(&sch->dev, NULL);
- vfio_ccw_free_regions(private);
- kfree(private->cp.guest_cp);
- kfree(private);
+ vfio_ccw_free_private(private);
return ret;
}
static void vfio_ccw_sch_remove(struct subchannel *sch)
{
struct vfio_ccw_private *private = dev_get_drvdata(&sch->dev);
- struct vfio_ccw_crw *crw, *temp;
vfio_ccw_sch_quiesce(sch);
-
- list_for_each_entry_safe(crw, temp, &private->crw, next) {
- list_del(&crw->next);
- kfree(crw);
- }
-
vfio_ccw_mdev_unreg(sch);
dev_set_drvdata(&sch->dev, NULL);
- vfio_ccw_free_regions(private);
- kfree(private->cp.guest_cp);
- kfree(private);
+ vfio_ccw_free_private(private);
VFIO_CCW_MSG_EVENT(4, "unbound from subchannel %x.%x.%04x\n",
sch->schid.cssid, sch->schid.ssid,
@@ -449,7 +468,7 @@ static int __init vfio_ccw_sch_init(void)
vfio_ccw_work_q = create_singlethread_workqueue("vfio-ccw");
if (!vfio_ccw_work_q) {
ret = -ENOMEM;
- goto out_err;
+ goto out_regions;
}
vfio_ccw_io_region = kmem_cache_create_usercopy("vfio_ccw_io_region",
@@ -458,7 +477,7 @@ static int __init vfio_ccw_sch_init(void)
sizeof(struct ccw_io_region), NULL);
if (!vfio_ccw_io_region) {
ret = -ENOMEM;
- goto out_err;
+ goto out_regions;
}
vfio_ccw_cmd_region = kmem_cache_create_usercopy("vfio_ccw_cmd_region",
@@ -467,7 +486,7 @@ static int __init vfio_ccw_sch_init(void)
sizeof(struct ccw_cmd_region), NULL);
if (!vfio_ccw_cmd_region) {
ret = -ENOMEM;
- goto out_err;
+ goto out_regions;
}
vfio_ccw_schib_region = kmem_cache_create_usercopy("vfio_ccw_schib_region",
@@ -477,7 +496,7 @@ static int __init vfio_ccw_sch_init(void)
if (!vfio_ccw_schib_region) {
ret = -ENOMEM;
- goto out_err;
+ goto out_regions;
}
vfio_ccw_crw_region = kmem_cache_create_usercopy("vfio_ccw_crw_region",
@@ -487,19 +506,25 @@ static int __init vfio_ccw_sch_init(void)
if (!vfio_ccw_crw_region) {
ret = -ENOMEM;
- goto out_err;
+ goto out_regions;
}
+ ret = mdev_register_driver(&vfio_ccw_mdev_driver);
+ if (ret)
+ goto out_regions;
+
isc_register(VFIO_CCW_ISC);
ret = css_driver_register(&vfio_ccw_sch_driver);
if (ret) {
isc_unregister(VFIO_CCW_ISC);
- goto out_err;
+ goto out_driver;
}
return ret;
-out_err:
+out_driver:
+ mdev_unregister_driver(&vfio_ccw_mdev_driver);
+out_regions:
vfio_ccw_destroy_regions();
destroy_workqueue(vfio_ccw_work_q);
vfio_ccw_debug_exit();
@@ -509,6 +534,7 @@ out_err:
static void __exit vfio_ccw_sch_exit(void)
{
css_driver_unregister(&vfio_ccw_sch_driver);
+ mdev_unregister_driver(&vfio_ccw_mdev_driver);
isc_unregister(VFIO_CCW_ISC);
vfio_ccw_destroy_regions();
destroy_workqueue(vfio_ccw_work_q);
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index 7f540ad0b568..d8589afac272 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -17,13 +17,13 @@
#include "vfio_ccw_private.h"
-static int vfio_ccw_mdev_reset(struct mdev_device *mdev)
+static const struct vfio_device_ops vfio_ccw_dev_ops;
+
+static int vfio_ccw_mdev_reset(struct vfio_ccw_private *private)
{
- struct vfio_ccw_private *private;
struct subchannel *sch;
int ret;
- private = dev_get_drvdata(mdev_parent_dev(mdev));
sch = private->sch;
/*
* TODO:
@@ -61,7 +61,7 @@ static int vfio_ccw_mdev_notifier(struct notifier_block *nb,
if (!cp_iova_pinned(&private->cp, unmap->iova))
return NOTIFY_OK;
- if (vfio_ccw_mdev_reset(private->mdev))
+ if (vfio_ccw_mdev_reset(private))
return NOTIFY_BAD;
cp_free(&private->cp);
@@ -113,10 +113,10 @@ static struct attribute_group *mdev_type_groups[] = {
NULL,
};
-static int vfio_ccw_mdev_create(struct mdev_device *mdev)
+static int vfio_ccw_mdev_probe(struct mdev_device *mdev)
{
- struct vfio_ccw_private *private =
- dev_get_drvdata(mdev_parent_dev(mdev));
+ struct vfio_ccw_private *private = dev_get_drvdata(mdev->dev.parent);
+ int ret;
if (private->state == VFIO_CCW_STATE_NOT_OPER)
return -ENODEV;
@@ -124,6 +124,10 @@ static int vfio_ccw_mdev_create(struct mdev_device *mdev)
if (atomic_dec_if_positive(&private->avail) < 0)
return -EPERM;
+ memset(&private->vdev, 0, sizeof(private->vdev));
+ vfio_init_group_dev(&private->vdev, &mdev->dev,
+ &vfio_ccw_dev_ops);
+
private->mdev = mdev;
private->state = VFIO_CCW_STATE_IDLE;
@@ -132,19 +136,31 @@ static int vfio_ccw_mdev_create(struct mdev_device *mdev)
private->sch->schid.ssid,
private->sch->schid.sch_no);
+ ret = vfio_register_emulated_iommu_dev(&private->vdev);
+ if (ret)
+ goto err_atomic;
+ dev_set_drvdata(&mdev->dev, private);
return 0;
+
+err_atomic:
+ vfio_uninit_group_dev(&private->vdev);
+ atomic_inc(&private->avail);
+ private->mdev = NULL;
+ private->state = VFIO_CCW_STATE_IDLE;
+ return ret;
}
-static int vfio_ccw_mdev_remove(struct mdev_device *mdev)
+static void vfio_ccw_mdev_remove(struct mdev_device *mdev)
{
- struct vfio_ccw_private *private =
- dev_get_drvdata(mdev_parent_dev(mdev));
+ struct vfio_ccw_private *private = dev_get_drvdata(mdev->dev.parent);
VFIO_CCW_MSG_EVENT(2, "mdev %pUl, sch %x.%x.%04x: remove\n",
mdev_uuid(mdev), private->sch->schid.cssid,
private->sch->schid.ssid,
private->sch->schid.sch_no);
+ vfio_unregister_group_dev(&private->vdev);
+
if ((private->state != VFIO_CCW_STATE_NOT_OPER) &&
(private->state != VFIO_CCW_STATE_STANDBY)) {
if (!vfio_ccw_sch_quiesce(private->sch))
@@ -152,23 +168,22 @@ static int vfio_ccw_mdev_remove(struct mdev_device *mdev)
/* The state will be NOT_OPER on error. */
}
+ vfio_uninit_group_dev(&private->vdev);
cp_free(&private->cp);
private->mdev = NULL;
atomic_inc(&private->avail);
-
- return 0;
}
-static int vfio_ccw_mdev_open_device(struct mdev_device *mdev)
+static int vfio_ccw_mdev_open_device(struct vfio_device *vdev)
{
struct vfio_ccw_private *private =
- dev_get_drvdata(mdev_parent_dev(mdev));
+ container_of(vdev, struct vfio_ccw_private, vdev);
unsigned long events = VFIO_IOMMU_NOTIFY_DMA_UNMAP;
int ret;
private->nb.notifier_call = vfio_ccw_mdev_notifier;
- ret = vfio_register_notifier(mdev_dev(mdev), VFIO_IOMMU_NOTIFY,
+ ret = vfio_register_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
&events, &private->nb);
if (ret)
return ret;
@@ -189,27 +204,26 @@ static int vfio_ccw_mdev_open_device(struct mdev_device *mdev)
out_unregister:
vfio_ccw_unregister_dev_regions(private);
- vfio_unregister_notifier(mdev_dev(mdev), VFIO_IOMMU_NOTIFY,
+ vfio_unregister_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
&private->nb);
return ret;
}
-static void vfio_ccw_mdev_close_device(struct mdev_device *mdev)
+static void vfio_ccw_mdev_close_device(struct vfio_device *vdev)
{
struct vfio_ccw_private *private =
- dev_get_drvdata(mdev_parent_dev(mdev));
+ container_of(vdev, struct vfio_ccw_private, vdev);
if ((private->state != VFIO_CCW_STATE_NOT_OPER) &&
(private->state != VFIO_CCW_STATE_STANDBY)) {
- if (!vfio_ccw_mdev_reset(mdev))
+ if (!vfio_ccw_mdev_reset(private))
private->state = VFIO_CCW_STATE_STANDBY;
/* The state will be NOT_OPER on error. */
}
cp_free(&private->cp);
vfio_ccw_unregister_dev_regions(private);
- vfio_unregister_notifier(mdev_dev(mdev), VFIO_IOMMU_NOTIFY,
- &private->nb);
+ vfio_unregister_notifier(vdev->dev, VFIO_IOMMU_NOTIFY, &private->nb);
}
static ssize_t vfio_ccw_mdev_read_io_region(struct vfio_ccw_private *private,
@@ -233,15 +247,14 @@ static ssize_t vfio_ccw_mdev_read_io_region(struct vfio_ccw_private *private,
return ret;
}
-static ssize_t vfio_ccw_mdev_read(struct mdev_device *mdev,
+static ssize_t vfio_ccw_mdev_read(struct vfio_device *vdev,
char __user *buf,
size_t count,
loff_t *ppos)
{
+ struct vfio_ccw_private *private =
+ container_of(vdev, struct vfio_ccw_private, vdev);
unsigned int index = VFIO_CCW_OFFSET_TO_INDEX(*ppos);
- struct vfio_ccw_private *private;
-
- private = dev_get_drvdata(mdev_parent_dev(mdev));
if (index >= VFIO_CCW_NUM_REGIONS + private->num_regions)
return -EINVAL;
@@ -286,15 +299,14 @@ out_unlock:
return ret;
}
-static ssize_t vfio_ccw_mdev_write(struct mdev_device *mdev,
+static ssize_t vfio_ccw_mdev_write(struct vfio_device *vdev,
const char __user *buf,
size_t count,
loff_t *ppos)
{
+ struct vfio_ccw_private *private =
+ container_of(vdev, struct vfio_ccw_private, vdev);
unsigned int index = VFIO_CCW_OFFSET_TO_INDEX(*ppos);
- struct vfio_ccw_private *private;
-
- private = dev_get_drvdata(mdev_parent_dev(mdev));
if (index >= VFIO_CCW_NUM_REGIONS + private->num_regions)
return -EINVAL;
@@ -311,12 +323,9 @@ static ssize_t vfio_ccw_mdev_write(struct mdev_device *mdev,
return -EINVAL;
}
-static int vfio_ccw_mdev_get_device_info(struct vfio_device_info *info,
- struct mdev_device *mdev)
+static int vfio_ccw_mdev_get_device_info(struct vfio_ccw_private *private,
+ struct vfio_device_info *info)
{
- struct vfio_ccw_private *private;
-
- private = dev_get_drvdata(mdev_parent_dev(mdev));
info->flags = VFIO_DEVICE_FLAGS_CCW | VFIO_DEVICE_FLAGS_RESET;
info->num_regions = VFIO_CCW_NUM_REGIONS + private->num_regions;
info->num_irqs = VFIO_CCW_NUM_IRQS;
@@ -324,14 +333,12 @@ static int vfio_ccw_mdev_get_device_info(struct vfio_device_info *info,
return 0;
}
-static int vfio_ccw_mdev_get_region_info(struct vfio_region_info *info,
- struct mdev_device *mdev,
+static int vfio_ccw_mdev_get_region_info(struct vfio_ccw_private *private,
+ struct vfio_region_info *info,
unsigned long arg)
{
- struct vfio_ccw_private *private;
int i;
- private = dev_get_drvdata(mdev_parent_dev(mdev));
switch (info->index) {
case VFIO_CCW_CONFIG_REGION_INDEX:
info->offset = 0;
@@ -406,19 +413,16 @@ static int vfio_ccw_mdev_get_irq_info(struct vfio_irq_info *info)
return 0;
}
-static int vfio_ccw_mdev_set_irqs(struct mdev_device *mdev,
+static int vfio_ccw_mdev_set_irqs(struct vfio_ccw_private *private,
uint32_t flags,
uint32_t index,
void __user *data)
{
- struct vfio_ccw_private *private;
struct eventfd_ctx **ctx;
if (!(flags & VFIO_IRQ_SET_ACTION_TRIGGER))
return -EINVAL;
- private = dev_get_drvdata(mdev_parent_dev(mdev));
-
switch (index) {
case VFIO_CCW_IO_IRQ_INDEX:
ctx = &private->io_trigger;
@@ -520,10 +524,12 @@ void vfio_ccw_unregister_dev_regions(struct vfio_ccw_private *private)
private->region = NULL;
}
-static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
+static ssize_t vfio_ccw_mdev_ioctl(struct vfio_device *vdev,
unsigned int cmd,
unsigned long arg)
{
+ struct vfio_ccw_private *private =
+ container_of(vdev, struct vfio_ccw_private, vdev);
int ret = 0;
unsigned long minsz;
@@ -540,7 +546,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
if (info.argsz < minsz)
return -EINVAL;
- ret = vfio_ccw_mdev_get_device_info(&info, mdev);
+ ret = vfio_ccw_mdev_get_device_info(private, &info);
if (ret)
return ret;
@@ -558,7 +564,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
if (info.argsz < minsz)
return -EINVAL;
- ret = vfio_ccw_mdev_get_region_info(&info, mdev, arg);
+ ret = vfio_ccw_mdev_get_region_info(private, &info, arg);
if (ret)
return ret;
@@ -603,47 +609,59 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
return ret;
data = (void __user *)(arg + minsz);
- return vfio_ccw_mdev_set_irqs(mdev, hdr.flags, hdr.index, data);
+ return vfio_ccw_mdev_set_irqs(private, hdr.flags, hdr.index,
+ data);
}
case VFIO_DEVICE_RESET:
- return vfio_ccw_mdev_reset(mdev);
+ return vfio_ccw_mdev_reset(private);
default:
return -ENOTTY;
}
}
/* Request removal of the device*/
-static void vfio_ccw_mdev_request(struct mdev_device *mdev, unsigned int count)
+static void vfio_ccw_mdev_request(struct vfio_device *vdev, unsigned int count)
{
- struct vfio_ccw_private *private = dev_get_drvdata(mdev_parent_dev(mdev));
-
- if (!private)
- return;
+ struct vfio_ccw_private *private =
+ container_of(vdev, struct vfio_ccw_private, vdev);
+ struct device *dev = vdev->dev;
if (private->req_trigger) {
if (!(count % 10))
- dev_notice_ratelimited(mdev_dev(private->mdev),
+ dev_notice_ratelimited(dev,
"Relaying device request to user (#%u)\n",
count);
eventfd_signal(private->req_trigger, 1);
} else if (count == 0) {
- dev_notice(mdev_dev(private->mdev),
+ dev_notice(dev,
"No device request channel registered, blocked until released by user\n");
}
}
+static const struct vfio_device_ops vfio_ccw_dev_ops = {
+ .open_device = vfio_ccw_mdev_open_device,
+ .close_device = vfio_ccw_mdev_close_device,
+ .read = vfio_ccw_mdev_read,
+ .write = vfio_ccw_mdev_write,
+ .ioctl = vfio_ccw_mdev_ioctl,
+ .request = vfio_ccw_mdev_request,
+};
+
+struct mdev_driver vfio_ccw_mdev_driver = {
+ .driver = {
+ .name = "vfio_ccw_mdev",
+ .owner = THIS_MODULE,
+ .mod_name = KBUILD_MODNAME,
+ },
+ .probe = vfio_ccw_mdev_probe,
+ .remove = vfio_ccw_mdev_remove,
+};
+
static const struct mdev_parent_ops vfio_ccw_mdev_ops = {
.owner = THIS_MODULE,
+ .device_driver = &vfio_ccw_mdev_driver,
.supported_type_groups = mdev_type_groups,
- .create = vfio_ccw_mdev_create,
- .remove = vfio_ccw_mdev_remove,
- .open_device = vfio_ccw_mdev_open_device,
- .close_device = vfio_ccw_mdev_close_device,
- .read = vfio_ccw_mdev_read,
- .write = vfio_ccw_mdev_write,
- .ioctl = vfio_ccw_mdev_ioctl,
- .request = vfio_ccw_mdev_request,
};
int vfio_ccw_mdev_reg(struct subchannel *sch)
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h
index b2c762eb42b9..7272eb788612 100644
--- a/drivers/s390/cio/vfio_ccw_private.h
+++ b/drivers/s390/cio/vfio_ccw_private.h
@@ -17,6 +17,7 @@
#include <linux/eventfd.h>
#include <linux/workqueue.h>
#include <linux/vfio_ccw.h>
+#include <linux/vfio.h>
#include <asm/crw.h>
#include <asm/debug.h>
@@ -67,6 +68,7 @@ struct vfio_ccw_crw {
/**
* struct vfio_ccw_private
+ * @vdev: Embedded VFIO device
* @sch: pointer to the subchannel
* @state: internal state of the device
* @completion: synchronization helper of the I/O completion
@@ -90,6 +92,7 @@ struct vfio_ccw_crw {
* @crw_work: work for deferral process of CRW handling
*/
struct vfio_ccw_private {
+ struct vfio_device vdev;
struct subchannel *sch;
int state;
struct completion *completion;
@@ -121,6 +124,8 @@ extern void vfio_ccw_mdev_unreg(struct subchannel *sch);
extern int vfio_ccw_sch_quiesce(struct subchannel *sch);
+extern struct mdev_driver vfio_ccw_mdev_driver;
+
/*
* States of the device statemachine.
*/
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index 623d5269a52c..2341425f6967 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -351,7 +351,7 @@ static int vfio_ap_mdev_probe(struct mdev_device *mdev)
list_add(&matrix_mdev->node, &matrix_dev->mdev_list);
mutex_unlock(&matrix_dev->lock);
- ret = vfio_register_group_dev(&matrix_mdev->vdev);
+ ret = vfio_register_emulated_iommu_dev(&matrix_mdev->vdev);
if (ret)
goto err_list;
dev_set_drvdata(&mdev->dev, matrix_mdev);
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
index 0ead91bfa838..6e2e62c6f47a 100644
--- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
@@ -65,6 +65,34 @@ static void vfio_fsl_mc_regions_cleanup(struct vfio_fsl_mc_device *vdev)
kfree(vdev->regions);
}
+static int vfio_fsl_mc_reset_device(struct vfio_fsl_mc_device *vdev)
+{
+ struct fsl_mc_device *mc_dev = vdev->mc_dev;
+ int ret = 0;
+
+ if (is_fsl_mc_bus_dprc(vdev->mc_dev)) {
+ return dprc_reset_container(mc_dev->mc_io, 0,
+ mc_dev->mc_handle,
+ mc_dev->obj_desc.id,
+ DPRC_RESET_OPTION_NON_RECURSIVE);
+ } else {
+ u16 token;
+
+ ret = fsl_mc_obj_open(mc_dev->mc_io, 0, mc_dev->obj_desc.id,
+ mc_dev->obj_desc.type,
+ &token);
+ if (ret)
+ goto out;
+ ret = fsl_mc_obj_reset(mc_dev->mc_io, 0, token);
+ if (ret) {
+ fsl_mc_obj_close(mc_dev->mc_io, 0, token);
+ goto out;
+ }
+ ret = fsl_mc_obj_close(mc_dev->mc_io, 0, token);
+ }
+out:
+ return ret;
+}
static void vfio_fsl_mc_close_device(struct vfio_device *core_vdev)
{
@@ -78,9 +106,7 @@ static void vfio_fsl_mc_close_device(struct vfio_device *core_vdev)
vfio_fsl_mc_regions_cleanup(vdev);
/* reset the device before cleaning up the interrupts */
- ret = dprc_reset_container(mc_cont->mc_io, 0, mc_cont->mc_handle,
- mc_cont->obj_desc.id,
- DPRC_RESET_OPTION_NON_RECURSIVE);
+ ret = vfio_fsl_mc_reset_device(vdev);
if (WARN_ON(ret))
dev_warn(&mc_cont->dev,
@@ -203,18 +229,7 @@ static long vfio_fsl_mc_ioctl(struct vfio_device *core_vdev,
}
case VFIO_DEVICE_RESET:
{
- int ret;
- struct fsl_mc_device *mc_dev = vdev->mc_dev;
-
- /* reset is supported only for the DPRC */
- if (!is_fsl_mc_bus_dprc(mc_dev))
- return -ENOTTY;
-
- ret = dprc_reset_container(mc_dev->mc_io, 0,
- mc_dev->mc_handle,
- mc_dev->obj_desc.id,
- DPRC_RESET_OPTION_NON_RECURSIVE);
- return ret;
+ return vfio_fsl_mc_reset_device(vdev);
}
default:
@@ -505,22 +520,13 @@ static void vfio_fsl_uninit_device(struct vfio_fsl_mc_device *vdev)
static int vfio_fsl_mc_probe(struct fsl_mc_device *mc_dev)
{
- struct iommu_group *group;
struct vfio_fsl_mc_device *vdev;
struct device *dev = &mc_dev->dev;
int ret;
- group = vfio_iommu_group_get(dev);
- if (!group) {