aboutsummaryrefslogtreecommitdiff
path: root/hw/vfio/ccw.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/vfio/ccw.c')
-rw-r--r--hw/vfio/ccw.c97
1 files changed, 52 insertions, 45 deletions
diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index 1f8e127..cea9d6e 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -21,13 +21,13 @@
#include <sys/ioctl.h>
#include "qapi/error.h"
-#include "hw/vfio/vfio-common.h"
-#include "sysemu/iommufd.h"
+#include "hw/vfio/vfio-device.h"
+#include "system/iommufd.h"
#include "hw/s390x/s390-ccw.h"
#include "hw/s390x/vfio-ccw.h"
#include "hw/qdev-properties.h"
#include "hw/s390x/ccw-device.h"
-#include "exec/address-spaces.h"
+#include "system/address-spaces.h"
#include "qemu/error-report.h"
#include "qemu/main-loop.h"
#include "qemu/module.h"
@@ -51,17 +51,8 @@ struct VFIOCCWDevice {
EventNotifier crw_notifier;
EventNotifier req_notifier;
bool force_orb_pfch;
- bool warned_orb_pfch;
};
-static inline void warn_once_pfch(VFIOCCWDevice *vcdev, SubchDev *sch,
- const char *msg)
-{
- warn_report_once_cond(&vcdev->warned_orb_pfch,
- "vfio-ccw (devno %x.%x.%04x): %s",
- sch->cssid, sch->ssid, sch->devno, msg);
-}
-
static void vfio_ccw_compute_needs_reset(VFIODevice *vdev)
{
vdev->needs_reset = false;
@@ -83,7 +74,8 @@ static IOInstEnding vfio_ccw_handle_request(SubchDev *sch)
if (!(sch->orb.ctrl0 & ORB_CTRL0_MASK_PFCH) && vcdev->force_orb_pfch) {
sch->orb.ctrl0 |= ORB_CTRL0_MASK_PFCH;
- warn_once_pfch(vcdev, sch, "PFCH flag forced");
+ warn_report_once("vfio-ccw (devno %x.%x.%04x): PFCH flag forced",
+ sch->cssid, sch->ssid, sch->devno);
}
QEMU_BUILD_BUG_ON(sizeof(region->orb_area) != sizeof(ORB));
@@ -384,8 +376,8 @@ static bool vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev,
Error **errp)
{
VFIODevice *vdev = &vcdev->vdev;
- g_autofree struct vfio_irq_info *irq_info = NULL;
- size_t argsz;
+ struct vfio_irq_info irq_info;
+ int ret;
int fd;
EventNotifier *notifier;
IOHandler *fd_read;
@@ -414,13 +406,15 @@ static bool vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev,
return false;
}
- argsz = sizeof(*irq_info);
- irq_info = g_malloc0(argsz);
- irq_info->index = irq;
- irq_info->argsz = argsz;
- if (ioctl(vdev->fd, VFIO_DEVICE_GET_IRQ_INFO,
- irq_info) < 0 || irq_info->count < 1) {
- error_setg_errno(errp, errno, "vfio: Error getting irq info");
+ ret = vfio_device_get_irq_info(vdev, irq, &irq_info);
+
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "vfio: Error getting irq info");
+ return false;
+ }
+
+ if (irq_info.count < 1) {
+ error_setg(errp, "vfio: Error getting irq info, count=0");
return false;
}
@@ -434,8 +428,8 @@ static bool vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev,
fd = event_notifier_get_fd(notifier);
qemu_set_fd_handler(fd, fd_read, NULL, vcdev);
- if (!vfio_set_irq_signaling(vdev, irq, 0,
- VFIO_IRQ_SET_ACTION_TRIGGER, fd, errp)) {
+ if (!vfio_device_irq_set_signaling(vdev, irq, 0,
+ VFIO_IRQ_SET_ACTION_TRIGGER, fd, errp)) {
qemu_set_fd_handler(fd, NULL, NULL, vcdev);
event_notifier_cleanup(notifier);
}
@@ -464,8 +458,8 @@ static void vfio_ccw_unregister_irq_notifier(VFIOCCWDevice *vcdev,
return;
}
- if (!vfio_set_irq_signaling(&vcdev->vdev, irq, 0,
- VFIO_IRQ_SET_ACTION_TRIGGER, -1, &err)) {
+ if (!vfio_device_irq_set_signaling(&vcdev->vdev, irq, 0,
+ VFIO_IRQ_SET_ACTION_TRIGGER, -1, &err)) {
warn_reportf_err(err, VFIO_MSG_PREFIX, vcdev->vdev.name);
}
@@ -496,7 +490,7 @@ static bool vfio_ccw_get_region(VFIOCCWDevice *vcdev, Error **errp)
return false;
}
- ret = vfio_get_region_info(vdev, VFIO_CCW_CONFIG_REGION_INDEX, &info);
+ ret = vfio_device_get_region_info(vdev, VFIO_CCW_CONFIG_REGION_INDEX, &info);
if (ret) {
error_setg_errno(errp, -ret, "vfio: Error getting config info");
return false;
@@ -510,11 +504,10 @@ static bool vfio_ccw_get_region(VFIOCCWDevice *vcdev, Error **errp)
vcdev->io_region_offset = info->offset;
vcdev->io_region = g_malloc0(info->size);
- g_free(info);
/* check for the optional async command region */
- ret = vfio_get_dev_region_info(vdev, VFIO_REGION_TYPE_CCW,
- VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD, &info);
+ ret = vfio_device_get_region_info_type(vdev, VFIO_REGION_TYPE_CCW,
+ VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD, &info);
if (!ret) {
vcdev->async_cmd_region_size = info->size;
if (sizeof(*vcdev->async_cmd_region) != vcdev->async_cmd_region_size) {
@@ -523,11 +516,10 @@ static bool vfio_ccw_get_region(VFIOCCWDevice *vcdev, Error **errp)
}
vcdev->async_cmd_region_offset = info->offset;
vcdev->async_cmd_region = g_malloc0(info->size);
- g_free(info);
}
- ret = vfio_get_dev_region_info(vdev, VFIO_REGION_TYPE_CCW,
- VFIO_REGION_SUBTYPE_CCW_SCHIB, &info);
+ ret = vfio_device_get_region_info_type(vdev, VFIO_REGION_TYPE_CCW,
+ VFIO_REGION_SUBTYPE_CCW_SCHIB, &info);
if (!ret) {
vcdev->schib_region_size = info->size;
if (sizeof(*vcdev->schib_region) != vcdev->schib_region_size) {
@@ -536,11 +528,10 @@ static bool vfio_ccw_get_region(VFIOCCWDevice *vcdev, Error **errp)
}
vcdev->schib_region_offset = info->offset;
vcdev->schib_region = g_malloc(info->size);
- g_free(info);
}
- ret = vfio_get_dev_region_info(vdev, VFIO_REGION_TYPE_CCW,
- VFIO_REGION_SUBTYPE_CCW_CRW, &info);
+ ret = vfio_device_get_region_info_type(vdev, VFIO_REGION_TYPE_CCW,
+ VFIO_REGION_SUBTYPE_CCW_CRW, &info);
if (!ret) {
vcdev->crw_region_size = info->size;
@@ -550,7 +541,6 @@ static bool vfio_ccw_get_region(VFIOCCWDevice *vcdev, Error **errp)
}
vcdev->crw_region_offset = info->offset;
vcdev->crw_region = g_malloc(info->size);
- g_free(info);
}
return true;
@@ -560,7 +550,6 @@ out_err:
g_free(vcdev->schib_region);
g_free(vcdev->async_cmd_region);
g_free(vcdev->io_region);
- g_free(info);
return false;
}
@@ -591,7 +580,7 @@ static void vfio_ccw_realize(DeviceState *dev, Error **errp)
goto out_unrealize;
}
- if (!vfio_attach_device(cdev->mdevid, vbasedev,
+ if (!vfio_device_attach(cdev->mdevid, vbasedev,
&address_space_memory, errp)) {
goto out_attach_dev_err;
}
@@ -628,7 +617,7 @@ out_irq_notifier_err:
out_io_notifier_err:
vfio_ccw_put_region(vcdev);
out_region_err:
- vfio_detach_device(vbasedev);
+ vfio_device_detach(vbasedev);
out_attach_dev_err:
g_free(vbasedev->name);
out_unrealize:
@@ -647,7 +636,7 @@ static void vfio_ccw_unrealize(DeviceState *dev)
vfio_ccw_unregister_irq_notifier(vcdev, VFIO_CCW_CRW_IRQ_INDEX);
vfio_ccw_unregister_irq_notifier(vcdev, VFIO_CCW_IO_IRQ_INDEX);
vfio_ccw_put_region(vcdev);
- vfio_detach_device(&vcdev->vdev);
+ vfio_device_detach(&vcdev->vdev);
g_free(vcdev->vdev.name);
if (cdc->unrealize) {
@@ -655,14 +644,14 @@ static void vfio_ccw_unrealize(DeviceState *dev)
}
}
-static Property vfio_ccw_properties[] = {
+static const Property vfio_ccw_properties[] = {
DEFINE_PROP_STRING("sysfsdev", VFIOCCWDevice, vdev.sysfsdev),
DEFINE_PROP_BOOL("force-orb-pfch", VFIOCCWDevice, force_orb_pfch, false),
#ifdef CONFIG_IOMMUFD
DEFINE_PROP_LINK("iommufd", VFIOCCWDevice, vdev.iommufd,
TYPE_IOMMUFD_BACKEND, IOMMUFDBackend *),
#endif
- DEFINE_PROP_END_OF_LIST(),
+ DEFINE_PROP_CCW_LOADPARM("loadparm", CcwDevice, loadparm),
};
static const VMStateDescription vfio_ccw_vmstate = {
@@ -675,6 +664,9 @@ static void vfio_ccw_instance_init(Object *obj)
VFIOCCWDevice *vcdev = VFIO_CCW(obj);
VFIODevice *vbasedev = &vcdev->vdev;
+ /* CCW device is mdev type device */
+ vbasedev->mdev = true;
+
/*
* All vfio-ccw devices are believed to operate in a way compatible with
* discarding of memory in RAM blocks, ie. pages pinned in the host are
@@ -694,7 +686,7 @@ static void vfio_ccw_set_fd(Object *obj, const char *str, Error **errp)
}
#endif
-static void vfio_ccw_class_init(ObjectClass *klass, void *data)
+static void vfio_ccw_class_init(ObjectClass *klass, const void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
S390CCWDeviceClass *cdc = S390_CCW_DEVICE_CLASS(klass);
@@ -708,12 +700,27 @@ static void vfio_ccw_class_init(ObjectClass *klass, void *data)
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
dc->realize = vfio_ccw_realize;
dc->unrealize = vfio_ccw_unrealize;
- dc->reset = vfio_ccw_reset;
+ device_class_set_legacy_reset(dc, vfio_ccw_reset);
cdc->handle_request = vfio_ccw_handle_request;
cdc->handle_halt = vfio_ccw_handle_halt;
cdc->handle_clear = vfio_ccw_handle_clear;
cdc->handle_store = vfio_ccw_handle_store;
+
+ object_class_property_set_description(klass, /* 2.10 */
+ "sysfsdev",
+ "Host sysfs path of assigned device");
+ object_class_property_set_description(klass, /* 3.0 */
+ "force-orb-pfch",
+ "Force unlimited prefetch");
+#ifdef CONFIG_IOMMUFD
+ object_class_property_set_description(klass, /* 9.0 */
+ "iommufd",
+ "Set host IOMMUFD backend device");
+#endif
+ object_class_property_set_description(klass, /* 9.2 */
+ "loadparm",
+ "Define which devices that can be used for booting");
}
static const TypeInfo vfio_ccw_info = {
generated by cgit v1.1 at 2025-07-02 10:44:07 +0000