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scsi: Remove automatic creation of SCSI controllers with -drive if=scsi 

Automatic creation of SCSI controllers for "-drive if=scsi" for x86
machines was quite a bad idea (see description of commit f778a82f0c
for details). This is marked as deprecated since QEMU v2.9.0, and as
far as I know, nobody complained that this is still urgently required
anymore. Time to remove this now.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1519123357-13225-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Thomas Huth 2018-02-20 11:42:37 +01:00 committed by Paolo Bonzini
parent d07aa197c5
commit 1454509726
10 changed files with 4 additions and 94 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
hw/i386/pc.c
View File

@ -1636,23 +1636,6 @@ void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
rom_reset_order_override();
}
void pc_pci_device_init(PCIBus *pci_bus)
{
int max_bus;
int bus;
/* Note: if=scsi is deprecated with PC machine types */
max_bus = drive_get_max_bus(IF_SCSI);
for (bus = 0; bus <= max_bus; bus++) {
pci_create_simple(pci_bus, -1, "lsi53c895a");
/*
* By not creating frontends here, we make
* scsi_legacy_handle_cmdline() create them, and warn that
* this usage is deprecated.
*/
}
}
void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name)
{
DeviceState *dev;

4
hw/i386/pc_piix.c
View File

@ -295,10 +295,6 @@ static void pc_init1(MachineState *machine,
PC_MACHINE_ACPI_DEVICE_PROP, &error_abort);
}
if (pcmc->pci_enabled) {
pc_pci_device_init(pci_bus);
}
if (pcms->acpi_nvdimm_state.is_enabled) {
nvdimm_init_acpi_state(&pcms->acpi_nvdimm_state, system_io,
pcms->fw_cfg, OBJECT(pcms));

3
hw/i386/pc_q35.c
View File

@ -273,9 +273,6 @@ static void pc_q35_init(MachineState *machine)
/* the rest devices to which pci devfn is automatically assigned */
pc_vga_init(isa_bus, host_bus);
pc_nic_init(isa_bus, host_bus);
if (pcmc->pci_enabled) {
pc_pci_device_init(host_bus);
}
if (pcms->acpi_nvdimm_state.is_enabled) {
nvdimm_init_acpi_state(&pcms->acpi_nvdimm_state, system_io,

2
hw/scsi/lsi53c895a.c
View File

@ -2277,5 +2277,5 @@ void lsi53c895a_create(PCIBus *bus)
{
LSIState *s = LSI53C895A(pci_create_simple(bus, -1, "lsi53c895a"));
scsi_bus_legacy_handle_cmdline(&s->bus, false);
scsi_bus_legacy_handle_cmdline(&s->bus);
}

49
hw/scsi/scsi-bus.c
View File

@ -271,7 +271,7 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
return SCSI_DEVICE(dev);
}
void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, bool deprecated)
void scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
{
Location loc;
DriveInfo *dinfo;
@ -284,59 +284,12 @@ void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, bool deprecated)
continue;
}
qemu_opts_loc_restore(dinfo->opts);
if (deprecated) {
/* Handling -drive not claimed by machine initialization */
if (blk_get_attached_dev(blk_by_legacy_dinfo(dinfo))) {
continue; /* claimed */
}
if (!dinfo->is_default) {
warn_report("bus=%d,unit=%d is deprecated with this"
" machine type",
bus->busnr, unit);
}
}
scsi_bus_legacy_add_drive(bus, blk_by_legacy_dinfo(dinfo),
unit, false, -1, false, NULL, &error_fatal);
}
loc_pop(&loc);
}
static bool is_scsi_hba_with_legacy_magic(Object *obj)
{
static const char *magic[] = {
"am53c974", "dc390", "esp", "lsi53c810", "lsi53c895a",
"megasas", "megasas-gen2", "mptsas1068", "spapr-vscsi",
"virtio-scsi-device",
NULL
};
const char *typename = object_get_typename(obj);
int i;
for (i = 0; magic[i]; i++)
if (!strcmp(typename, magic[i])) {
return true;
}
return false;
}
static int scsi_legacy_handle_cmdline_cb(Object *obj, void *opaque)
{
SCSIBus *bus = (SCSIBus *)object_dynamic_cast(obj, TYPE_SCSI_BUS);
if (bus && is_scsi_hba_with_legacy_magic(OBJECT(bus->qbus.parent))) {
scsi_bus_legacy_handle_cmdline(bus, true);
}
return 0;
}
void scsi_legacy_handle_cmdline(void)
{
object_child_foreach_recursive(object_get_root(),
scsi_legacy_handle_cmdline_cb, NULL);
}
static int32_t scsi_invalid_field(SCSIRequest *req, uint8_t *buf)
{
scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD));

3
hw/scsi/spapr_vscsi.c
View File

@ -1215,8 +1215,7 @@ void spapr_vscsi_create(VIOsPAPRBus *bus)
dev = qdev_create(&bus->bus, "spapr-vscsi");
qdev_init_nofail(dev);
scsi_bus_legacy_handle_cmdline(&VIO_SPAPR_VSCSI_DEVICE(dev)->bus,
false);
scsi_bus_legacy_handle_cmdline(&VIO_SPAPR_VSCSI_DEVICE(dev)->bus);
}
static int spapr_vscsi_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)

2
include/hw/scsi/scsi.h
View File

@ -153,7 +153,7 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
int unit, bool removable, int bootindex,
bool share_rw,
const char *serial, Error **errp);
void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, bool deprecated);
void scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
void scsi_legacy_handle_cmdline(void);
SCSIRequest *scsi_req_alloc(const SCSIReqOps *reqops, SCSIDevice *d,

5
qemu-doc.texi
View File

@ -2680,11 +2680,6 @@ The ``-net vlan=NN'' argument is partially replaced with the
new ``-netdev'' argument. The remaining use cases will no
longer be directly supported in QEMU.
@subsection -drive if=scsi (since 2.9.0)
The ``-drive if=scsi'' argument is replaced by the the
``-device BUS-TYPE'' argument combined with ``-drive if=none''.
@subsection -drive cyls=...,heads=...,secs=...,trans=... (since 2.10.0)
The drive geometry arguments are replaced by the the geometry arguments

4
tests/qemu-iotests/051
View File

@ -157,9 +157,7 @@ case "$QEMU_DEFAULT_MACHINE" in
pc)
run_qemu -drive if=floppy
run_qemu -drive if=ide,media=cdrom
run_qemu -drive if=scsi,media=cdrom
run_qemu -drive if=ide
run_qemu -drive if=scsi
;;
*)
;;
@ -188,9 +186,7 @@ case "$QEMU_DEFAULT_MACHINE" in
pc)
run_qemu -drive file="$TEST_IMG",if=floppy,readonly=on
run_qemu -drive file="$TEST_IMG",if=ide,media=cdrom,readonly=on
run_qemu -drive file="$TEST_IMG",if=scsi,media=cdrom,readonly=on
run_qemu -drive file="$TEST_IMG",if=ide,readonly=on
run_qemu -drive file="$TEST_IMG",if=scsi,readonly=on
;;
*)
;;

9
vl.c
View File

@ -4621,15 +4621,6 @@ int main(int argc, char **argv, char **envp)
rom_reset_order_override();
/*
* Create frontends for -drive if=scsi leftovers.
* Normally, frontends for -drive get created by machine
* initialization for onboard SCSI HBAs. However, we create a few
* more ever since SCSI qdevification, but this is pretty much an
* implementation accident, and deprecated.
*/
scsi_legacy_handle_cmdline();
/* Did we create any drives that we failed to create a device for? */
drive_check_orphaned();