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pci, virtio, acpi: fixes for 2.6

Browse source 
Fixes all over the place. Most notably, fixes migration
 for systems with pci express bridges, and random crashes
 observed with virtio blk and scsi dataplane.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pci, virtio, acpi: fixes for 2.6

Fixes all over the place. Most notably, fixes migration
for systems with pci express bridges, and random crashes
observed with virtio blk and scsi dataplane.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 08 Apr 2016 08:53:46 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream:
  hw/pci-bridge: Add missing unref in case register-bus fails
  virtio: merge virtio_queue_aio_set_host_notifier_handler with virtio_queue_set_aio
  virtio-scsi: use aio handler for data plane
  virtio-blk: use aio handler for data plane
  virtio: add aio handler
  virtio-scsi: fix disabled mode
  virtio-blk: fix disabled mode
  virtio: make virtio_queue_notify_vq static
  tests/bios-tables-test: fix assert
  virtio-balloon: reset the statistic timer to load device
  Migration: Add i82801b11 migration data
  Sort the fw_cfg file list
  xen: piix reuse pci generic class init function
  pci-testdev: fast mmio support
  acpi: Add missing GCC_FMT_ATTR

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-04-08 12:45:53 +01:00
parent 3be4f4d724 2e4278b534
commit 8227e2d167
25 changed files with 360 additions and 100 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
hw/block/dataplane/virtio-blk.c
View file

@ -29,7 +29,6 @@
struct VirtIOBlockDataPlane {
bool starting;
bool stopping;
bool disabled;
VirtIOBlkConf *conf;
@ -185,6 +184,17 @@ void virtio_blk_data_plane_destroy(VirtIOBlockDataPlane *s)
g_free(s);
}
static void virtio_blk_data_plane_handle_output(VirtIODevice *vdev,
VirtQueue *vq)
{
VirtIOBlock *s = (VirtIOBlock *)vdev;
assert(s->dataplane);
assert(s->dataplane_started);
virtio_blk_handle_vq(s, vq);
}
/* Context: QEMU global mutex held */
void virtio_blk_data_plane_start(VirtIOBlockDataPlane *s)
{
@ -227,14 +237,15 @@ void virtio_blk_data_plane_start(VirtIOBlockDataPlane *s)
/* Get this show started by hooking up our callbacks */
aio_context_acquire(s->ctx);
virtio_queue_aio_set_host_notifier_handler(s->vq, s->ctx, true, true);
virtio_queue_aio_set_host_notifier_handler(s->vq, s->ctx,
virtio_blk_data_plane_handle_output);
aio_context_release(s->ctx);
return;
fail_host_notifier:
k->set_guest_notifiers(qbus->parent, 1, false);
fail_guest_notifiers:
s->disabled = true;
vblk->dataplane_disabled = true;
s->starting = false;
vblk->dataplane_started = true;
}
@ -251,8 +262,8 @@ void virtio_blk_data_plane_stop(VirtIOBlockDataPlane *s)
}
/* Better luck next time. */
if (s->disabled) {
s->disabled = false;
if (vblk->dataplane_disabled) {
vblk->dataplane_disabled = false;
vblk->dataplane_started = false;
return;
}
@ -262,7 +273,7 @@ void virtio_blk_data_plane_stop(VirtIOBlockDataPlane *s)
aio_context_acquire(s->ctx);
/* Stop notifications for new requests from guest */
virtio_queue_aio_set_host_notifier_handler(s->vq, s->ctx, false, false);
virtio_queue_aio_set_host_notifier_handler(s->vq, s->ctx, NULL);
/* Drain and switch bs back to the QEMU main loop */
blk_set_aio_context(s->conf->conf.blk, qemu_get_aio_context());

29
hw/block/virtio-blk.c
View file

@ -54,7 +54,7 @@ static void virtio_blk_req_complete(VirtIOBlockReq *req, unsigned char status)
stb_p(&req->in->status, status);
virtqueue_push(s->vq, &req->elem, req->in_len);
if (s->dataplane) {
if (s->dataplane_started && !s->dataplane_disabled) {
virtio_blk_data_plane_notify(s->dataplane);
} else {
virtio_notify(vdev, s->vq);
@ -578,20 +578,11 @@ void virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
}
}
static void virtio_blk_handle_output(VirtIODevice *vdev, VirtQueue *vq)
void virtio_blk_handle_vq(VirtIOBlock *s, VirtQueue *vq)
{
VirtIOBlock *s = VIRTIO_BLK(vdev);
VirtIOBlockReq *req;
MultiReqBuffer mrb = {};
/* Some guests kick before setting VIRTIO_CONFIG_S_DRIVER_OK so start
* dataplane here instead of waiting for .set_status().
*/
if (s->dataplane && !s->dataplane_started) {
virtio_blk_data_plane_start(s->dataplane);
return;
}
blk_io_plug(s->blk);
while ((req = virtio_blk_get_request(s))) {
@ -605,6 +596,22 @@ static void virtio_blk_handle_output(VirtIODevice *vdev, VirtQueue *vq)
blk_io_unplug(s->blk);
}
static void virtio_blk_handle_output(VirtIODevice *vdev, VirtQueue *vq)
{
VirtIOBlock *s = (VirtIOBlock *)vdev;
if (s->dataplane) {
/* Some guests kick before setting VIRTIO_CONFIG_S_DRIVER_OK so start
* dataplane here instead of waiting for .set_status().
*/
virtio_blk_data_plane_start(s->dataplane);
if (!s->dataplane_disabled) {
return;
}
}
virtio_blk_handle_vq(s, vq);
}
static void virtio_blk_dma_restart_bh(void *opaque)
{
VirtIOBlock *s = opaque;

14
hw/core/loader.c
View file

@ -1053,6 +1053,20 @@ void rom_set_fw(FWCfgState *f)
fw_cfg = f;
}
void rom_set_order_override(int order)
{
if (!fw_cfg)
return;
fw_cfg_set_order_override(fw_cfg, order);
}
void rom_reset_order_override(void)
{
if (!fw_cfg)
return;
fw_cfg_reset_order_override(fw_cfg);
}
static Rom *find_rom(hwaddr addr)
{
Rom *rom;

4
hw/i386/pc.c
View file

@ -1406,6 +1406,7 @@ DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus)
{
DeviceState *dev = NULL;
rom_set_order_override(FW_CFG_ORDER_OVERRIDE_VGA);
if (pci_bus) {
PCIDevice *pcidev = pci_vga_init(pci_bus);
dev = pcidev ? &pcidev->qdev : NULL;
@ -1413,6 +1414,7 @@ DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus)
ISADevice *isadev = isa_vga_init(isa_bus);
dev = isadev ? DEVICE(isadev) : NULL;
}
rom_reset_order_override();
return dev;
}
@ -1541,6 +1543,7 @@ void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
{
int i;
rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC);
for (i = 0; i < nb_nics; i++) {
NICInfo *nd = &nd_table[i];
@ -1550,6 +1553,7 @@ void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
pci_nic_init_nofail(nd, pci_bus, "e1000", NULL);
}
}
rom_reset_order_override();
}
void pc_pci_device_init(PCIBus *pci_bus)

1
hw/i386/pc_piix.c
View file

@ -434,6 +434,7 @@ static void pc_i440fx_2_5_machine_options(MachineClass *m)
m->alias = NULL;
m->is_default = 0;
pcmc->save_tsc_khz = false;
m->legacy_fw_cfg_order = 1;
SET_MACHINE_COMPAT(m, PC_COMPAT_2_5);
}

1
hw/i386/pc_q35.c
View file

@ -298,6 +298,7 @@ static void pc_q35_2_5_machine_options(MachineClass *m)
pc_q35_2_6_machine_options(m);
m->alias = NULL;
pcmc->save_tsc_khz = false;
m->legacy_fw_cfg_order = 1;
SET_MACHINE_COMPAT(m, PC_COMPAT_2_5);
}

14
hw/ide/piix.c
View file

@ -258,22 +258,10 @@ static const TypeInfo piix3_ide_info = {
.class_init = piix3_ide_class_init,
};
static void piix3_ide_xen_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->realize = pci_piix_ide_realize;
k->vendor_id = PCI_VENDOR_ID_INTEL;
k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
k->class_id = PCI_CLASS_STORAGE_IDE;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
}
static const TypeInfo piix3_ide_xen_info = {
.name = "piix3-ide-xen",
.parent = TYPE_PCI_IDE,
.class_init = piix3_ide_xen_class_init,
.class_init = piix3_ide_class_init,
};
static void piix4_ide_class_init(ObjectClass *klass, void *data)

7
hw/misc/pci-testdev.c
View file

@ -239,6 +239,7 @@ static void pci_testdev_realize(PCIDevice *pci_dev, Error **errp)
uint8_t *pci_conf;
char *name;
int r, i;
bool fastmmio = kvm_ioeventfd_any_length_enabled();
pci_conf = pci_dev->config;
@ -261,8 +262,12 @@ static void pci_testdev_realize(PCIDevice *pci_dev, Error **errp)
memcpy(test->hdr->name, name, strlen(name) + 1);
g_free(name);
test->hdr->offset = cpu_to_le32(IOTEST_SIZE(i) + i * IOTEST_ACCESS_WIDTH);
test->size = IOTEST_ACCESS_WIDTH;
test->match_data = strcmp(IOTEST_TEST(i), "wildcard-eventfd");
if (fastmmio && IOTEST_IS_MEM(i) && !test->match_data) {
test->size = 0;
} else {
test->size = IOTEST_ACCESS_WIDTH;
}
test->hdr->test = i;
test->hdr->data = test->match_data ? IOTEST_DATAMATCH : IOTEST_NOMATCH;
test->hdr->width = IOTEST_ACCESS_WIDTH;

131
hw/nvram/fw_cfg.c
View file

@ -28,6 +28,7 @@
#include "hw/isa/isa.h"
#include "hw/nvram/fw_cfg.h"
#include "hw/sysbus.h"
#include "hw/boards.h"
#include "trace.h"
#include "qemu/error-report.h"
#include "qemu/config-file.h"
@ -69,11 +70,14 @@ struct FWCfgState {
/*< public >*/
FWCfgEntry entries[2][FW_CFG_MAX_ENTRY];
int entry_order[FW_CFG_MAX_ENTRY];
FWCfgFiles *files;
uint16_t cur_entry;
uint32_t cur_offset;
Notifier machine_ready;
int fw_cfg_order_override;
bool dma_enabled;
dma_addr_t dma_addr;
AddressSpace *dma_as;
@ -665,12 +669,87 @@ void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value)
fw_cfg_add_bytes(s, key, copy, sizeof(value));
}
void fw_cfg_set_order_override(FWCfgState *s, int order)
{
assert(s->fw_cfg_order_override == 0);
s->fw_cfg_order_override = order;
}
void fw_cfg_reset_order_override(FWCfgState *s)
{
assert(s->fw_cfg_order_override != 0);
s->fw_cfg_order_override = 0;
}
/*
* This is the legacy order list. For legacy systems, files are in
* the fw_cfg in the order defined below, by the "order" value. Note
* that some entries (VGA ROMs, NIC option ROMS, etc.) go into a
* specific area, but there may be more than one and they occur in the
* order that the user specifies them on the command line. Those are
* handled in a special manner, using the order override above.
*
* For non-legacy, the files are sorted by filename to avoid this kind
* of complexity in the future.
*
* This is only for x86, other arches don't implement versioning so
* they won't set legacy mode.
*/
static struct {
const char *name;
int order;
} fw_cfg_order[] = {
{ "etc/boot-menu-wait", 10 },
{ "bootsplash.jpg", 11 },
{ "bootsplash.bmp", 12 },
{ "etc/boot-fail-wait", 15 },
{ "etc/smbios/smbios-tables", 20 },
{ "etc/smbios/smbios-anchor", 30 },
{ "etc/e820", 40 },
{ "etc/reserved-memory-end", 50 },
{ "genroms/kvmvapic.bin", 55 },
{ "genroms/linuxboot.bin", 60 },
{ }, /* VGA ROMs from pc_vga_init come here, 70. */
{ }, /* NIC option ROMs from pc_nic_init come here, 80. */
{ "etc/system-states", 90 },
{ }, /* User ROMs come here, 100. */
{ }, /* Device FW comes here, 110. */
{ "etc/extra-pci-roots", 120 },
{ "etc/acpi/tables", 130 },
{ "etc/table-loader", 140 },
{ "etc/tpm/log", 150 },
{ "etc/acpi/rsdp", 160 },
{ "bootorder", 170 },
#define FW_CFG_ORDER_OVERRIDE_LAST 200
};
static int get_fw_cfg_order(FWCfgState *s, const char *name)
{
int i;
if (s->fw_cfg_order_override > 0)
return s->fw_cfg_order_override;
for (i = 0; i < ARRAY_SIZE(fw_cfg_order); i++) {
if (fw_cfg_order[i].name == NULL)
continue;
if (strcmp(name, fw_cfg_order[i].name) == 0)
return fw_cfg_order[i].order;
}
/* Stick unknown stuff at the end. */
error_report("warning: Unknown firmware file in legacy mode: %s\n", name);
return FW_CFG_ORDER_OVERRIDE_LAST;
}
void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
FWCfgReadCallback callback, void *callback_opaque,
void *data, size_t len)
{
int i, index;
int i, index, count;
size_t dsize;
MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
int order = 0;
if (!s->files) {
dsize = sizeof(uint32_t) + sizeof(FWCfgFile) * FW_CFG_FILE_SLOTS;
@ -678,13 +757,48 @@ void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
fw_cfg_add_bytes(s, FW_CFG_FILE_DIR, s->files, dsize);
}
index = be32_to_cpu(s->files->count);
assert(index < FW_CFG_FILE_SLOTS);
count = be32_to_cpu(s->files->count);
assert(count < FW_CFG_FILE_SLOTS);
pstrcpy(s->files->f[index].name, sizeof(s->files->f[index].name),
filename);
for (i = 0; i < index; i++) {
if (strcmp(s->files->f[index].name, s->files->f[i].name) == 0) {
/* Find the insertion point. */
if (mc->legacy_fw_cfg_order) {
/*
* Sort by order. For files with the same order, we keep them
* in the sequence in which they were added.
*/
order = get_fw_cfg_order(s, filename);
for (index = count;
index > 0 && order < s->entry_order[index - 1];
index--);
} else {
/* Sort by file name. */
for (index = count;
index > 0 && strcmp(filename, s->files->f[index - 1].name) < 0;
index--);
}
/*
* Move all the entries from the index point and after down one
* to create a slot for the new entry. Because calculations are
* being done with the index, make it so that "i" is the current
* index and "i - 1" is the one being copied from, thus the
* unusual start and end in the for statement.
*/
for (i = count + 1; i > index; i--) {
s->files->f[i] = s->files->f[i - 1];
s->files->f[i].select = cpu_to_be16(FW_CFG_FILE_FIRST + i);
s->entries[0][FW_CFG_FILE_FIRST + i] =
s->entries[0][FW_CFG_FILE_FIRST + i - 1];
s->entry_order[i] = s->entry_order[i - 1];
}
memset(&s->files->f[index], 0, sizeof(FWCfgFile));
memset(&s->entries[0][FW_CFG_FILE_FIRST + index], 0, sizeof(FWCfgEntry));
pstrcpy(s->files->f[index].name, sizeof(s->files->f[index].name), filename);
for (i = 0; i <= count; i++) {
if (i != index &&
strcmp(s->files->f[index].name, s->files->f[i].name) == 0) {
error_report("duplicate fw_cfg file name: %s",
s->files->f[index].name);
exit(1);
@ -696,9 +810,10 @@ void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
s->files->f[index].size = cpu_to_be32(len);
s->files->f[index].select = cpu_to_be16(FW_CFG_FILE_FIRST + index);
s->entry_order[index] = order;
trace_fw_cfg_add_file(s, index, s->files->f[index].name, len);
s->files->count = cpu_to_be32(index+1);
s->files->count = cpu_to_be32(count+1);
}
void fw_cfg_add_file(FWCfgState *s, const char *filename,

9
hw/pci-bridge/i82801b11.c
View file

@ -78,6 +78,14 @@ err_bridge:
return rc;
}
static const VMStateDescription i82801b11_bridge_dev_vmstate = {
.name = "i82801b11_bridge",
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj, PCIBridge),
VMSTATE_END_OF_LIST()
}
};
static void i82801b11_bridge_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
@ -89,6 +97,7 @@ static void i82801b11_bridge_class_init(ObjectClass *klass, void *data)
k->revision = ICH9_D2P_A2_REVISION;
k->init = i82801b11_bridge_initfn;
k->config_write = pci_bridge_write_config;
dc->vmsd = &i82801b11_bridge_dev_vmstate;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}

8
hw/pci-bridge/pci_expander_bridge.c
View file

@ -249,7 +249,7 @@ static int pxb_dev_init_common(PCIDevice *dev, bool pcie)
PCI_HOST_BRIDGE(ds)->bus = bus;
if (pxb_register_bus(dev, bus)) {
return -EINVAL;
goto err_register_bus;
}
qdev_init_nofail(ds);
@ -263,6 +263,12 @@ static int pxb_dev_init_common(PCIDevice *dev, bool pcie)
pxb_dev_list = g_list_insert_sorted(pxb_dev_list, pxb, pxb_compare);
return 0;
err_register_bus:
object_unref(OBJECT(bds));
object_unparent(OBJECT(bus));
object_unref(OBJECT(ds));
return -EINVAL;
}
static int pxb_dev_initfn(PCIDevice *dev)

47
hw/scsi/virtio-scsi-dataplane.c
View file

@ -38,7 +38,35 @@ void virtio_scsi_set_iothread(VirtIOSCSI *s, IOThread *iothread)
}
}
static int virtio_scsi_vring_init(VirtIOSCSI *s, VirtQueue *vq, int n)
static void virtio_scsi_data_plane_handle_cmd(VirtIODevice *vdev,
VirtQueue *vq)
{
VirtIOSCSI *s = (VirtIOSCSI *)vdev;
assert(s->ctx && s->dataplane_started);
virtio_scsi_handle_cmd_vq(s, vq);
}
static void virtio_scsi_data_plane_handle_ctrl(VirtIODevice *vdev,
VirtQueue *vq)
{
VirtIOSCSI *s = VIRTIO_SCSI(vdev);
assert(s->ctx && s->dataplane_started);
virtio_scsi_handle_ctrl_vq(s, vq);
}
static void virtio_scsi_data_plane_handle_event(VirtIODevice *vdev,
VirtQueue *vq)
{
VirtIOSCSI *s = VIRTIO_SCSI(vdev);
assert(s->ctx && s->dataplane_started);
virtio_scsi_handle_event_vq(s, vq);
}
static int virtio_scsi_vring_init(VirtIOSCSI *s, VirtQueue *vq, int n,
void (*fn)(VirtIODevice *vdev, VirtQueue *vq))
{
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(s)));
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
@ -53,7 +81,7 @@ static int virtio_scsi_vring_init(VirtIOSCSI *s, VirtQueue *vq, int n)
return rc;
}
virtio_queue_aio_set_host_notifier_handler(vq, s->ctx, true, true);
virtio_queue_aio_set_host_notifier_handler(vq, s->ctx, fn);
return 0;
}
@ -70,10 +98,10 @@ static void virtio_scsi_clear_aio(VirtIOSCSI *s)
VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(s);
int i;
virtio_queue_aio_set_host_notifier_handler(vs->ctrl_vq, s->ctx, false, false);
virtio_queue_aio_set_host_notifier_handler(vs->event_vq, s->ctx, false, false);
virtio_queue_aio_set_host_notifier_handler(vs->ctrl_vq, s->ctx, NULL);
virtio_queue_aio_set_host_notifier_handler(vs->event_vq, s->ctx, NULL);
for (i = 0; i < vs->conf.num_queues; i++) {
virtio_queue_aio_set_host_notifier_handler(vs->cmd_vqs[i], s->ctx, false, false);
virtio_queue_aio_set_host_notifier_handler(vs->cmd_vqs[i], s->ctx, NULL);
}
}
@ -104,16 +132,19 @@ void virtio_scsi_dataplane_start(VirtIOSCSI *s)
}
aio_context_acquire(s->ctx);
rc = virtio_scsi_vring_init(s, vs->ctrl_vq, 0);
rc = virtio_scsi_vring_init(s, vs->ctrl_vq, 0,
virtio_scsi_data_plane_handle_ctrl);
if (rc) {
goto fail_vrings;
}
rc = virtio_scsi_vring_init(s, vs->event_vq, 1);
rc = virtio_scsi_vring_init(s, vs->event_vq, 1,
virtio_scsi_data_plane_handle_event);
if (rc) {
goto fail_vrings;
}
for (i = 0; i < vs->conf.num_queues; i++) {
rc = virtio_scsi_vring_init(s, vs->cmd_vqs[i], i + 2);
rc = virtio_scsi_vring_init(s, vs->cmd_vqs[i], i + 2,
virtio_scsi_data_plane_handle_cmd);
if (rc) {
goto fail_vrings;
}

69
hw/scsi/virtio-scsi.c
View file

@ -68,7 +68,7 @@ static void virtio_scsi_complete_req(VirtIOSCSIReq *req)
qemu_iovec_from_buf(&req->resp_iov, 0, &req->resp, req->resp_size);
virtqueue_push(vq, &req->elem, req->qsgl.size + req->resp_iov.size);
if (s->dataplane_started) {
if (s->dataplane_started && !s->dataplane_fenced) {
virtio_scsi_dataplane_notify(vdev, req);
} else {
virtio_notify(vdev, vq);
@ -374,7 +374,7 @@ fail:
return ret;
}
void virtio_scsi_handle_ctrl_req(VirtIOSCSI *s, VirtIOSCSIReq *req)
static void virtio_scsi_handle_ctrl_req(VirtIOSCSI *s, VirtIOSCSIReq *req)
{
VirtIODevice *vdev = (VirtIODevice *)s;
uint32_t type;
@ -412,20 +412,28 @@ void virtio_scsi_handle_ctrl_req(VirtIOSCSI *s, VirtIOSCSIReq *req)
}
}
static void virtio_scsi_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
void virtio_scsi_handle_ctrl_vq(VirtIOSCSI *s, VirtQueue *vq)
{
VirtIOSCSI *s = (VirtIOSCSI *)vdev;
VirtIOSCSIReq *req;
if (s->ctx && !s->dataplane_started) {
virtio_scsi_dataplane_start(s);
return;
}
while ((req = virtio_scsi_pop_req(s, vq))) {
virtio_scsi_handle_ctrl_req(s, req);
}
}
static void virtio_scsi_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
{
VirtIOSCSI *s = (VirtIOSCSI *)vdev;
if (s->ctx) {
virtio_scsi_dataplane_start(s);
if (!s->dataplane_fenced) {
return;
}
}
virtio_scsi_handle_ctrl_vq(s, vq);
}
static void virtio_scsi_complete_cmd_req(VirtIOSCSIReq *req)
{
/* Sense data is not in req->resp and is copied separately
@ -508,7 +516,7 @@ static void virtio_scsi_fail_cmd_req(VirtIOSCSIReq *req)
virtio_scsi_complete_cmd_req(req);
}
bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req)
static bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req)
{
VirtIOSCSICommon *vs = &s->parent_obj;
SCSIDevice *d;
@ -550,7 +558,7 @@ bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req)
return true;
}
void virtio_scsi_handle_cmd_req_submit(VirtIOSCSI *s, VirtIOSCSIReq *req)
static void virtio_scsi_handle_cmd_req_submit(VirtIOSCSI *s, VirtIOSCSIReq *req)
{
SCSIRequest *sreq = req->sreq;
if (scsi_req_enqueue(sreq)) {
@ -560,17 +568,11 @@ void virtio_scsi_handle_cmd_req_submit(VirtIOSCSI *s, VirtIOSCSIReq *req)
scsi_req_unref(sreq);
}
static void virtio_scsi_handle_cmd(VirtIODevice *vdev, VirtQueue *vq)
void virtio_scsi_handle_cmd_vq(VirtIOSCSI *s, VirtQueue *vq)
{
/* use non-QOM casts in the data path */
VirtIOSCSI *s = (VirtIOSCSI *)vdev;
VirtIOSCSIReq *req, *next;
QTAILQ_HEAD(, VirtIOSCSIReq) reqs = QTAILQ_HEAD_INITIALIZER(reqs);
if (s->ctx && !s->dataplane_started) {
virtio_scsi_dataplane_start(s);
return;
}
while ((req = virtio_scsi_pop_req(s, vq))) {
if (virtio_scsi_handle_cmd_req_prepare(s, req)) {
QTAILQ_INSERT_TAIL(&reqs, req, next);
@ -582,6 +584,20 @@ static void virtio_scsi_handle_cmd(VirtIODevice *vdev, VirtQueue *vq)
}
}
static void virtio_scsi_handle_cmd(VirtIODevice *vdev, VirtQueue *vq)
{
/* use non-QOM casts in the data path */
VirtIOSCSI *s = (VirtIOSCSI *)vdev;
if (s->ctx) {
virtio_scsi_dataplane_start(s);
if (!s->dataplane_fenced) {
return;
}
}
virtio_scsi_handle_cmd_vq(s, vq);
}
static void virtio_scsi_get_config(VirtIODevice *vdev,
uint8_t *config)
{
@ -725,17 +741,24 @@ out:
}
}
void virtio_scsi_handle_event_vq(VirtIOSCSI *s, VirtQueue *vq)
{
if (s->events_dropped) {
virtio_scsi_push_event(s, NULL, VIRTIO_SCSI_T_NO_EVENT, 0);
}
}
static void virtio_scsi_handle_event(VirtIODevice *vdev, VirtQueue *vq)
{
VirtIOSCSI *s = VIRTIO_SCSI(vdev);
if (s->ctx && !s->dataplane_started) {
if (s->ctx) {
virtio_scsi_dataplane_start(s);
return;
}
if (s->events_dropped) {
virtio_scsi_push_event(s, NULL, VIRTIO_SCSI_T_NO_EVENT, 0);
if (!s->dataplane_fenced) {
return;
}
}
virtio_scsi_handle_event_vq(s, vq);
}
static void virtio_scsi_change(SCSIBus *bus, SCSIDevice *dev, SCSISense sense)
@ -773,7 +796,7 @@ static void virtio_scsi_hotplug(HotplugHandler *hotplug_dev, DeviceState *dev,
VirtIOSCSI *s = VIRTIO_SCSI(vdev);
SCSIDevice *sd = SCSI_DEVICE(dev);
if (s->ctx && !s->dataplane_disabled) {
if (s->ctx && !s->dataplane_fenced) {
VirtIOSCSIBlkChangeNotifier *insert_notifier, *remove_notifier;
if (blk_op_is_blocked(sd->conf.blk, BLOCK_OP_TYPE_DATAPLANE, errp)) {

4
hw/virtio/virtio-balloon.c
View file

@ -426,6 +426,10 @@ static int virtio_balloon_load_device(VirtIODevice *vdev, QEMUFile *f,
s->num_pages = qemu_get_be32(f);
s->actual = qemu_get_be32(f);
if (balloon_stats_enabled(s)) {
balloon_stats_change_timer(s, s->stats_poll_interval);
}
return 0;
}

55
hw/virtio/virtio.c
View file

@ -96,6 +96,7 @@ struct VirtQueue
uint16_t vector;
void (*handle_output)(VirtIODevice *vdev, VirtQueue *vq);
void (*handle_aio_output)(VirtIODevice *vdev, VirtQueue *vq);
VirtIODevice *vdev;
EventNotifier guest_notifier;
EventNotifier host_notifier;
@ -1088,7 +1089,17 @@ void virtio_queue_set_align(VirtIODevice *vdev, int n, int align)
virtio_queue_update_rings(vdev, n);
}
void virtio_queue_notify_vq(VirtQueue *vq)
static void virtio_queue_notify_aio_vq(VirtQueue *vq)
{
if (vq->vring.desc && vq->handle_aio_output) {
VirtIODevice *vdev = vq->vdev;
trace_virtio_queue_notify(vdev, vq - vdev->vq, vq);
vq->handle_aio_output(vdev, vq);
}
}
static void virtio_queue_notify_vq(VirtQueue *vq)
{
if (vq->vring.desc && vq->handle_output) {
VirtIODevice *vdev = vq->vdev;
@ -1143,6 +1154,7 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
vdev->vq[i].vring.num_default = queue_size;
vdev->vq[i].vring.align = VIRTIO_PCI_VRING_ALIGN;
vdev->vq[i].handle_output = handle_output;
vdev->vq[i].handle_aio_output = NULL;
return &vdev->vq[i];
}
@ -1780,6 +1792,31 @@ EventNotifier *virtio_queue_get_guest_notifier(VirtQueue *vq)
return &vq->guest_notifier;
}
static void virtio_queue_host_notifier_aio_read(EventNotifier *n)
{
VirtQueue *vq = container_of(n, VirtQueue, host_notifier);
if (event_notifier_test_and_clear(n)) {
virtio_queue_notify_aio_vq(vq);
}
}
void virtio_queue_aio_set_host_notifier_handler(VirtQueue *vq, AioContext *ctx,
void (*handle_output)(VirtIODevice *,
VirtQueue *))
{
if (handle_output) {
vq->handle_aio_output = handle_output;
aio_set_event_notifier(ctx, &vq->host_notifier, true,
virtio_queue_host_notifier_aio_read);
} else {
aio_set_event_notifier(ctx, &vq->host_notifier, true, NULL);
/* Test and clear notifier before after disabling event,
* in case poll callback didn't have time to run. */
virtio_queue_host_notifier_aio_read(&vq->host_notifier);
vq->handle_aio_output = NULL;
}
}
static void virtio_queue_host_notifier_read(EventNotifier *n)
{
VirtQueue *vq = container_of(n, VirtQueue, host_notifier);
@ -1788,22 +1825,6 @@ static void virtio_queue_host_notifier_read(EventNotifier *n)
}
}
void virtio_queue_aio_set_host_notifier_handler(VirtQueue *vq, AioContext *ctx,
bool assign, bool set_handler)
{
if (assign && set_handler) {
aio_set_event_notifier(ctx, &vq->host_notifier, true,
virtio_queue_host_notifier_read);
} else {
aio_set_event_notifier(ctx, &vq->host_notifier, true, NULL);
}
if (!assign) {
/* Test and clear notifier before after disabling event,
* in case poll callback didn't have time to run. */
virtio_queue_host_notifier_read(&vq->host_notifier);
}
}
void virtio_queue_set_host_notifier_fd_handler(VirtQueue *vq, bool assign,
bool set_handler)
{

3
include/hw/acpi/aml-build.h
View file

@ -369,6 +369,7 @@ build_rsdt(GArray *table_data, GArray *linker, GArray *table_offsets,
const char *oem_id, const char *oem_table_id);
int
build_append_named_dword(GArray *array, const char *name_format, ...);
build_append_named_dword(GArray *array, const char *name_format, ...)
GCC_FMT_ATTR(2, 3);
#endif

3
include/hw/boards.h
View file

@ -108,7 +108,8 @@ struct MachineClass {
no_cdrom:1,
no_sdcard:1,
has_dynamic_sysbus:1,
pci_allow_0_address:1;
pci_allow_0_address:1,
legacy_fw_cfg_order:1;
int is_default;
const char *default_machine_opts;
const char *default_boot_order;

2
include/hw/loader.h
View file

@ -128,6 +128,8 @@ int rom_add_elf_program(const char *name, void *data, size_t datasize,
size_t romsize, hwaddr addr);
int rom_check_and_register_reset(void);
void rom_set_fw(FWCfgState *f);
void rom_set_order_override(int order);
void rom_reset_order_override(void);
int rom_copy(uint8_t *dest, hwaddr addr, size_t size);
void *rom_ptr(hwaddr addr);
void hmp_info_roms(Monitor *mon, const QDict *qdict);

8
include/hw/nvram/fw_cfg.h
View file

@ -11,6 +11,14 @@ typedef struct FWCfgFile {
char name[FW_CFG_MAX_FILE_PATH];
} FWCfgFile;
#define FW_CFG_ORDER_OVERRIDE_VGA 70
#define FW_CFG_ORDER_OVERRIDE_NIC 80
#define FW_CFG_ORDER_OVERRIDE_USER 100
#define FW_CFG_ORDER_OVERRIDE_DEVICE 110
void fw_cfg_set_order_override(FWCfgState *fw_cfg, int order);
void fw_cfg_reset_order_override(FWCfgState *fw_cfg);
typedef struct FWCfgFiles {
uint32_t count;
FWCfgFile f[];

3
include/hw/virtio/virtio-blk.h
View file

@ -53,6 +53,7 @@ typedef struct VirtIOBlock {
unsigned short sector_mask;
bool original_wce;
VMChangeStateEntry *change;
bool dataplane_disabled;
bool dataplane_started;
struct VirtIOBlockDataPlane *dataplane;
} VirtIOBlock;
@ -85,4 +86,6 @@ void virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb);
void virtio_blk_submit_multireq(BlockBackend *blk, MultiReqBuffer *mrb);
void virtio_blk_handle_vq(VirtIOBlock *s, VirtQueue *vq);
#endif

7
include/hw/virtio/virtio-scsi.h
View file

@ -91,7 +91,6 @@ typedef struct VirtIOSCSI {
bool dataplane_started;
bool dataplane_starting;
bool dataplane_stopping;
bool dataplane_disabled;
bool dataplane_fenced;
Error *blocker;
uint32_t host_features;
@ -140,9 +139,9 @@ void virtio_scsi_common_realize(DeviceState *dev, Error **errp,
HandleOutput cmd);
void virtio_scsi_common_unrealize(DeviceState *dev, Error **errp);
void virtio_scsi_handle_ctrl_req(VirtIOSCSI *s, VirtIOSCSIReq *req);
bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req);
void virtio_scsi_handle_cmd_req_submit(VirtIOSCSI *s, VirtIOSCSIReq *req);
void virtio_scsi_handle_event_vq(VirtIOSCSI *s, VirtQueue *vq);
void virtio_scsi_handle_cmd_vq(VirtIOSCSI *s, VirtQueue *vq);
void virtio_scsi_handle_ctrl_vq(VirtIOSCSI *s, VirtQueue *vq);
void virtio_scsi_init_req(VirtIOSCSI *s, VirtQueue *vq, VirtIOSCSIReq *req);
void virtio_scsi_free_req(VirtIOSCSIReq *req);
void virtio_scsi_push_event(VirtIOSCSI *s, SCSIDevice *dev,

4
include/hw/virtio/virtio.h
View file

@ -251,8 +251,8 @@ EventNotifier *virtio_queue_get_host_notifier(VirtQueue *vq);
void virtio_queue_set_host_notifier_fd_handler(VirtQueue *vq, bool assign,
bool set_handler);
void virtio_queue_aio_set_host_notifier_handler(VirtQueue *vq, AioContext *ctx,
bool assign, bool set_handler);
void virtio_queue_notify_vq(VirtQueue *vq);
void (*fn)(VirtIODevice *,
VirtQueue *));
void virtio_irq(VirtQueue *vq);
VirtQueue *virtio_vector_first_queue(VirtIODevice *vdev, uint16_t vector);
VirtQueue *virtio_vector_next_queue(VirtQueue *vq);

2
tests/Makefile
View file

@ -83,7 +83,7 @@ check-unit-y += tests/test-crypto-cipher$(EXESUF)
check-unit-y += tests/test-crypto-secret$(EXESUF)
check-unit-$(CONFIG_GNUTLS) += tests/test-crypto-tlscredsx509$(EXESUF)
check-unit-$(CONFIG_GNUTLS) += tests/test-crypto-tlssession$(EXESUF)
check-unit-$(CONFIG_LINUX) += tests/test-qga$(EXESUF)
#check-unit-$(CONFIG_LINUX) += tests/test-qga$(EXESUF)
check-unit-y += tests/test-timed-average$(EXESUF)
check-unit-y += tests/test-io-task$(EXESUF)
check-unit-y += tests/test-io-channel-socket$(EXESUF)

2
tests/bios-tables-test.c
View file

@ -432,7 +432,7 @@ static bool load_asl(GArray *sdts, AcpiSdtTable *sdt)
#define COMMENT_END "*/"
#define DEF_BLOCK "DefinitionBlock ("
#define BLOCK_NAME_END ".aml"
#define BLOCK_NAME_END ","
static GString *normalize_asl(gchar *asl_code)
{

10
vl.c
View file

@ -2297,8 +2297,9 @@ static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
gchar *buf;
size_t size;
const char *name, *file, *str;
FWCfgState *fw_cfg = (FWCfgState *) opaque;
if (opaque == NULL) {
if (fw_cfg == NULL) {
error_report("fw_cfg device not available");
return -1;
}
@ -2332,7 +2333,10 @@ static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
return -1;
}
}
fw_cfg_add_file((FWCfgState *)opaque, name, buf, size);
/* For legacy, keep user files in a specific global order. */
fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
fw_cfg_add_file(fw_cfg, name, buf, size);
fw_cfg_reset_order_override(fw_cfg);
return 0;
}
@ -4535,10 +4539,12 @@ int main(int argc, char **argv, char **envp)
igd_gfx_passthru();
/* init generic devices */
rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
if (qemu_opts_foreach(qemu_find_opts("device"),
device_init_func, NULL, NULL)) {
exit(1);
}
rom_reset_order_override();
/* Did we create any drives that we failed to create a device for? */
drive_check_orphaned();