From 2059839baa8fbc4390eddf462c601165485ffa8f Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 11:05:40 +0100 Subject: [PATCH 01/11] hw: Default -drive to if=ide explicitly where it works Block backends defined with -drive if=ide are meant to be picked up by machine initialization code: a suitable frontend gets created and wired up automatically. if=ide drives not picked up that way can still be used with -device as if they had if=none, but that's unclean and best avoided. Unused ones produce an "Orphaned drive without device" warning. -drive parameter "if" is optional, and the default depends on the machine type. If a machine type doesn't specify a default, the default is "ide". Many machine types default to if=ide, even though they don't actually have an IDE controller. A future patch will change these defaults to something more sensible. To prepare for it, this patch makes default "ide" explicit for the machines that actually pick up if=ide drives: * alpha: clipper * arm/aarch64: spitz borzoi terrier tosa * i386/x86_64: generic-pc-machine (with concrete subtypes pc-q35-* pc-i440fx-* pc-* isapc xenfv) * mips64el: fulong2e * mips/mipsel/mips64el: malta mips * ppc/ppc64: mac99 g3beige prep * sh4/sh4eb: r2d * sparc64: sun4u sun4v Note that ppc64 machine powernv already sets an "ide" default explicitly. Its IDE controller isn't implemented, yet. Signed-off-by: Markus Armbruster Reviewed-by: Thomas Huth Message-Id: <1487153147-11530-2-git-send-email-armbru@redhat.com> --- hw/alpha/dp264.c | 1 + hw/arm/spitz.c | 3 +++ hw/arm/tosa.c | 1 + hw/i386/pc.c | 1 + hw/mips/mips_fulong2e.c | 1 + hw/mips/mips_malta.c | 1 + hw/mips/mips_r4k.c | 1 + hw/ppc/mac_newworld.c | 1 + hw/ppc/mac_oldworld.c | 1 + hw/ppc/prep.c | 1 + hw/sh4/r2d.c | 1 + hw/sparc64/sun4u.c | 2 ++ 12 files changed, 15 insertions(+) diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c index d6431fd586..85405da3df 100644 --- a/hw/alpha/dp264.c +++ b/hw/alpha/dp264.c @@ -177,6 +177,7 @@ static void clipper_machine_init(MachineClass *mc) { mc->desc = "Alpha DP264/CLIPPER"; mc->init = clipper_init; + mc->block_default_type = IF_IDE; mc->max_cpus = 4; mc->is_default = 1; } diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c index 949a15ae64..fe2d5a764c 100644 --- a/hw/arm/spitz.c +++ b/hw/arm/spitz.c @@ -998,6 +998,7 @@ static void spitzpda_class_init(ObjectClass *oc, void *data) mc->desc = "Sharp SL-C3000 (Spitz) PDA (PXA270)"; mc->init = spitz_init; + mc->block_default_type = IF_IDE; } static const TypeInfo spitzpda_type = { @@ -1012,6 +1013,7 @@ static void borzoipda_class_init(ObjectClass *oc, void *data) mc->desc = "Sharp SL-C3100 (Borzoi) PDA (PXA270)"; mc->init = borzoi_init; + mc->block_default_type = IF_IDE; } static const TypeInfo borzoipda_type = { @@ -1026,6 +1028,7 @@ static void terrierpda_class_init(ObjectClass *oc, void *data) mc->desc = "Sharp SL-C3200 (Terrier) PDA (PXA270)"; mc->init = terrier_init; + mc->block_default_type = IF_IDE; } static const TypeInfo terrierpda_type = { diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c index c3db996930..9f58a23fb5 100644 --- a/hw/arm/tosa.c +++ b/hw/arm/tosa.c @@ -263,6 +263,7 @@ static void tosapda_machine_init(MachineClass *mc) { mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)"; mc->init = tosa_init; + mc->block_default_type = IF_IDE; } DEFINE_MACHINE("tosa", tosapda_machine_init) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index e3fcd514dd..a555c35d91 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -2339,6 +2339,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data) mc->query_hotpluggable_cpus = pc_query_hotpluggable_cpus; mc->default_boot_order = "cad"; mc->hot_add_cpu = pc_hot_add_cpu; + mc->block_default_type = IF_IDE; mc->max_cpus = 255; mc->reset = pc_machine_reset; hc->pre_plug = pc_machine_device_pre_plug_cb; diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c index 9a4dae42d9..e636c3abaa 100644 --- a/hw/mips/mips_fulong2e.c +++ b/hw/mips/mips_fulong2e.c @@ -387,6 +387,7 @@ static void mips_fulong2e_machine_init(MachineClass *mc) { mc->desc = "Fulong 2e mini pc"; mc->init = mips_fulong2e_init; + mc->block_default_type = IF_IDE; } DEFINE_MACHINE("fulong2e", mips_fulong2e_machine_init) diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c index 75877de11c..5dd177e961 100644 --- a/hw/mips/mips_malta.c +++ b/hw/mips/mips_malta.c @@ -1264,6 +1264,7 @@ static void mips_malta_machine_init(MachineClass *mc) { mc->desc = "MIPS Malta Core LV"; mc->init = mips_malta_init; + mc->block_default_type = IF_IDE; mc->max_cpus = 16; mc->is_default = 1; } diff --git a/hw/mips/mips_r4k.c b/hw/mips/mips_r4k.c index 27548c43b6..748586ed77 100644 --- a/hw/mips/mips_r4k.c +++ b/hw/mips/mips_r4k.c @@ -306,6 +306,7 @@ static void mips_machine_init(MachineClass *mc) { mc->desc = "mips r4k platform"; mc->init = mips_r4k_init; + mc->block_default_type = IF_IDE; } DEFINE_MACHINE("mips", mips_machine_init) diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c index 2bfdb643df..716aea6852 100644 --- a/hw/ppc/mac_newworld.c +++ b/hw/ppc/mac_newworld.c @@ -518,6 +518,7 @@ static void core99_machine_class_init(ObjectClass *oc, void *data) mc->desc = "Mac99 based PowerMAC"; mc->init = ppc_core99_init; + mc->block_default_type = IF_IDE; mc->max_cpus = MAX_CPUS; mc->default_boot_order = "cd"; mc->kvm_type = core99_kvm_type; diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c index 56282c5bc6..5df94e239b 100644 --- a/hw/ppc/mac_oldworld.c +++ b/hw/ppc/mac_oldworld.c @@ -368,6 +368,7 @@ static void heathrow_machine_init(MachineClass *mc) { mc->desc = "Heathrow based PowerMAC"; mc->init = ppc_heathrow_init; + mc->block_default_type = IF_IDE; mc->max_cpus = MAX_CPUS; #ifndef TARGET_PPC64 mc->is_default = 1; diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c index ca7959c126..961230c569 100644 --- a/hw/ppc/prep.c +++ b/hw/ppc/prep.c @@ -684,6 +684,7 @@ static void prep_machine_init(MachineClass *mc) { mc->desc = "PowerPC PREP platform"; mc->init = ppc_prep_init; + mc->block_default_type = IF_IDE; mc->max_cpus = MAX_CPUS; mc->default_boot_order = "cad"; } diff --git a/hw/sh4/r2d.c b/hw/sh4/r2d.c index db373c70c5..6d06968f8b 100644 --- a/hw/sh4/r2d.c +++ b/hw/sh4/r2d.c @@ -362,6 +362,7 @@ static void r2d_machine_init(MachineClass *mc) { mc->desc = "r2d-plus board"; mc->init = r2d_init; + mc->block_default_type = IF_IDE; } DEFINE_MACHINE("r2d", r2d_machine_init) diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c index d1a6bca873..d347b6616d 100644 --- a/hw/sparc64/sun4u.c +++ b/hw/sparc64/sun4u.c @@ -579,6 +579,7 @@ static void sun4u_class_init(ObjectClass *oc, void *data) mc->desc = "Sun4u platform"; mc->init = sun4u_init; + mc->block_default_type = IF_IDE; mc->max_cpus = 1; /* XXX for now */ mc->is_default = 1; mc->default_boot_order = "c"; @@ -596,6 +597,7 @@ static void sun4v_class_init(ObjectClass *oc, void *data) mc->desc = "Sun4v platform"; mc->init = sun4v_init; + mc->block_default_type = IF_IDE; mc->max_cpus = 1; /* XXX for now */ mc->default_boot_order = "c"; } From e0319b030256cfd64c599b1bbac5b3df92ebafe4 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 11:05:41 +0100 Subject: [PATCH 02/11] hw/arm/cubieboard hw/arm/xlnx-ep108: Fix units_per_default_bus Machine types cubieboard, xlnx-ep108, xlnx-zcu102 have an onboard AHCI controller, but neglect to set their MachineClass member units_per_default_bus = 1. This permits -drive if=ide,unit=1, which makes no sense for AHCI. It also screws up index=N for odd N, because it gets desugared to unit=1,bus=N/2 Doesn't really matter, because these machine types fail to honor -drive if=ide. Add the missing units_per_default_bus = 1 anyway, along with a TODO comment on what needs to be done for -drive if=ide. Also set block_default_type = IF_IDE explicitly. It's currently the default, but the next commit will change it to something more sensible, and we want to keep the IF_IDE default for these three machines. See also the previous commit. Cc: Beniamino Galvani Cc: Alistair Francis Cc: "Edgar E. Iglesias" Cc: Peter Maydell Cc: qemu-arm@nongnu.org Signed-off-by: Markus Armbruster Acked-by: Alistair Francis Message-Id: <1487153147-11530-3-git-send-email-armbru@redhat.com> --- hw/arm/cubieboard.c | 4 ++++ hw/arm/xlnx-ep108.c | 6 ++++++ 2 files changed, 10 insertions(+) diff --git a/hw/arm/cubieboard.c b/hw/arm/cubieboard.c index dd19ba3c99..b98e1c4a8c 100644 --- a/hw/arm/cubieboard.c +++ b/hw/arm/cubieboard.c @@ -71,6 +71,8 @@ static void cubieboard_init(MachineState *machine) memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE, &s->sdram); + /* TODO create and connect IDE devices for ide_drive_get() */ + cubieboard_binfo.ram_size = machine->ram_size; cubieboard_binfo.kernel_filename = machine->kernel_filename; cubieboard_binfo.kernel_cmdline = machine->kernel_cmdline; @@ -82,6 +84,8 @@ static void cubieboard_machine_init(MachineClass *mc) { mc->desc = "cubietech cubieboard"; mc->init = cubieboard_init; + mc->block_default_type = IF_IDE; + mc->units_per_default_bus = 1; } DEFINE_MACHINE("cubieboard", cubieboard_machine_init) diff --git a/hw/arm/xlnx-ep108.c b/hw/arm/xlnx-ep108.c index 4ec590a25d..860780ab8b 100644 --- a/hw/arm/xlnx-ep108.c +++ b/hw/arm/xlnx-ep108.c @@ -106,6 +106,8 @@ static void xlnx_ep108_init(MachineState *machine) sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line); } + /* TODO create and connect IDE devices for ide_drive_get() */ + xlnx_ep108_binfo.ram_size = ram_size; xlnx_ep108_binfo.kernel_filename = machine->kernel_filename; xlnx_ep108_binfo.kernel_cmdline = machine->kernel_cmdline; @@ -118,6 +120,8 @@ static void xlnx_ep108_machine_init(MachineClass *mc) { mc->desc = "Xilinx ZynqMP EP108 board"; mc->init = xlnx_ep108_init; + mc->block_default_type = IF_IDE; + mc->units_per_default_bus = 1; } DEFINE_MACHINE("xlnx-ep108", xlnx_ep108_machine_init) @@ -126,6 +130,8 @@ static void xlnx_zcu102_machine_init(MachineClass *mc) { mc->desc = "Xilinx ZynqMP ZCU102 board"; mc->init = xlnx_ep108_init; + mc->block_default_type = IF_IDE; + mc->units_per_default_bus = 1; } DEFINE_MACHINE("xlnx-zcu102", xlnx_zcu102_machine_init) From a27fa28f039771574176a1efe0733b3ba3c7c47c Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 11:05:42 +0100 Subject: [PATCH 03/11] hw: Default -drive to if=none instead of ide when ide cannot work Block backends defined with -drive if=ide are meant to be picked up by machine initialization code: a suitable frontend gets created and wired up automatically. if=ide drives not picked up that way can still be used with -device as if they had if=none, but that's unclean and best avoided. Unused ones produce an "Orphaned drive without device" warning. -drive parameter "if" is optional, and the default depends on the machine type. If a machine type doesn't specify a default, the default is "ide". Many machine types implicitly default to if=ide that way, even though they don't actually have an IDE controller. This makes no sense. Change the implicit default to if=none. Affected machines: * all targets: none * aarch64/arm: akita ast2500 canon cheetah collie connex imx25 integratorcp kzm lm3s6965evb lm3s811evb mainstone musicpal n800 n810 netduino2 nuri palmetto realview romulus sabrelite smdkc210 sx1 sx1 verdex z2 * cris: axis-dev88 * i386/x86_64: xenpv * lm32: lm32-evr lm32-uclinux milkymist * m68k: an5206 dummy mcf5208evb * microblaze/microblazeel: petalogix-ml605 petalogix-s3adsp1800 * mips/mips64/mips64el/mipsel: mipssim * moxie: moxiesim * or32: or32-sim * ppc/ppc64/ppcemb: bamboo ref405ep taihu virtex-ml507 * ppc/ppc64: mpc8544ds ppce500 * sh4/sh4eb: shix * sparc: leon3_generic * sparc64: niagara * tricore: tricore_testboard * unicore32: puv3 * xtensa/xtensaeb: kc705 lx200 lx60 ml605 sim None of these machines have an IDE controller, let alone code to honor if=ide. Cc: Peter Maydell Cc: qemu-arm@nongnu.org Cc: Edgar E. Iglesias Cc: Stefano Stabellini Cc: Anthony Perard Cc: xen-devel@lists.xensource.com Cc: Michael Walle Cc: Laurent Vivier Cc: Anthony Green Cc: Jia Liu Cc: Alexander Graf Cc: qemu-ppc@nongnu.org Cc: Magnus Damm Cc: Fabien Chouteau Cc: Mark Cave-Ayland Cc: Artyom Tarasenko Cc: Bastian Koppelmann Cc: Guan Xuetao Cc: Max Filippov Signed-off-by: Markus Armbruster Acked-By: Artyom Tarasenko Reviewed-by: Laurent Vivier Reviewed-by: Thomas Huth Message-Id: <1487153147-11530-4-git-send-email-armbru@redhat.com> --- include/sysemu/blockdev.h | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h index 16432f3508..351a039c10 100644 --- a/include/sysemu/blockdev.h +++ b/include/sysemu/blockdev.h @@ -19,12 +19,11 @@ void blockdev_auto_del(BlockBackend *blk); typedef enum { IF_DEFAULT = -1, /* for use with drive_add() only */ /* - * IF_IDE must be zero, because we want MachineClass member - * block_default_type to default-initialize to IF_IDE + * IF_NONE must be zero, because we want MachineClass member + * block_default_type to default-initialize to IF_NONE */ - IF_IDE = 0, - IF_NONE, - IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN, + IF_NONE = 0, + IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN, IF_COUNT } BlockInterfaceType; From 7e465513c1c8a384003053eb8f8362039bbb7a2c Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 11:05:43 +0100 Subject: [PATCH 04/11] hw: Default -drive to if=none instead of scsi when scsi cannot work Block backends defined with -drive if=scsi are meant to be picked up by machine initialization code: a suitable frontend gets created and wired up automatically. if=scsi drives not picked up that way can still be used with -device as if they had if=none, but that's unclean and best avoided. Unused ones produce an "Orphaned drive without device" warning. A few machine types default to if=scsi, even though they don't actually have a SCSI HBA. This makes no sense. Change their default to if=none. Affected machines: * aarch64/arm: realview-pbx-a9 vexpress-a9 vexpress-a15 xilinx-zynq-a9 Cc: Peter Maydell Cc: "Edgar E. Iglesias" Cc: Alistair Francis Cc: qemu-arm@nongnu.org Signed-off-by: Markus Armbruster Reviewed-by: Thomas Huth Reviewed-by: Alistair Francis Message-Id: <1487153147-11530-5-git-send-email-armbru@redhat.com> --- hw/arm/realview.c | 1 - hw/arm/vexpress.c | 1 - hw/arm/xilinx_zynq.c | 1 - 3 files changed, 3 deletions(-) diff --git a/hw/arm/realview.c b/hw/arm/realview.c index 8eafccaf1d..8c11c7ae77 100644 --- a/hw/arm/realview.c +++ b/hw/arm/realview.c @@ -443,7 +443,6 @@ static void realview_pbx_a9_class_init(ObjectClass *oc, void *data) mc->desc = "ARM RealView Platform Baseboard Explore for Cortex-A9"; mc->init = realview_pbx_a9_init; - mc->block_default_type = IF_SCSI; mc->max_cpus = 4; } diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c index e05756846e..c6b1e674b4 100644 --- a/hw/arm/vexpress.c +++ b/hw/arm/vexpress.c @@ -752,7 +752,6 @@ static void vexpress_class_init(ObjectClass *oc, void *data) mc->desc = "ARM Versatile Express"; mc->init = vexpress_common_init; - mc->block_default_type = IF_SCSI; mc->max_cpus = 4; } diff --git a/hw/arm/xilinx_zynq.c b/hw/arm/xilinx_zynq.c index 7dac20d67d..3985356fc2 100644 --- a/hw/arm/xilinx_zynq.c +++ b/hw/arm/xilinx_zynq.c @@ -323,7 +323,6 @@ static void zynq_machine_init(MachineClass *mc) { mc->desc = "Xilinx Zynq Platform Baseboard for Cortex-A9"; mc->init = zynq_init; - mc->block_default_type = IF_SCSI; mc->max_cpus = 1; mc->no_sdcard = 1; } From 2a7ae4ee50002a2fb5ac67fc8c32cc9009335cd8 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 11:05:44 +0100 Subject: [PATCH 05/11] hw/arm/highbank: Default -drive to if=ide instead of if=scsi These machines have no onboard SCSI HBA, and no way to plug one. -drive if=scsi therefore cannot work. They do have an onboard IDE controller (sysbus-ahci), but fail to honor if=ide. Change their default to if=ide, and add a TODO comment on what needs to be done to actually honor -drive if=ide. Cc: Rob Herring Cc: Peter Maydell Cc: qemu-arm@nongnu.org Signed-off-by: Markus Armbruster Reviewed-by: Thomas Huth Message-Id: <1487153147-11530-6-git-send-email-armbru@redhat.com> --- hw/arm/highbank.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c index 80e5fd458b..0a4508cef3 100644 --- a/hw/arm/highbank.c +++ b/hw/arm/highbank.c @@ -363,6 +363,8 @@ static void calxeda_init(MachineState *machine, enum cxmachines machine_id) sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[82]); } + /* TODO create and connect IDE devices for ide_drive_get() */ + highbank_binfo.ram_size = ram_size; highbank_binfo.kernel_filename = kernel_filename; highbank_binfo.kernel_cmdline = kernel_cmdline; @@ -405,7 +407,8 @@ static void highbank_class_init(ObjectClass *oc, void *data) mc->desc = "Calxeda Highbank (ECX-1000)"; mc->init = highbank_init; - mc->block_default_type = IF_SCSI; + mc->block_default_type = IF_IDE; + mc->units_per_default_bus = 1; mc->max_cpus = 4; } @@ -421,7 +424,8 @@ static void midway_class_init(ObjectClass *oc, void *data) mc->desc = "Calxeda Midway (ECX-2000)"; mc->init = midway_init; - mc->block_default_type = IF_SCSI; + mc->block_default_type = IF_IDE; + mc->units_per_default_bus = 1; mc->max_cpus = 4; } From 664cc623bfe161759eabd263a1bf7668895b9e4a Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 11:05:45 +0100 Subject: [PATCH 06/11] blockdev: Improve message for orphaned -drive We warn when a -drive isn't supported by the machine type (commit a66c9dc): $ qemu-system-x86_64 -S -display none -drive if=mtd Warning: Orphaned drive without device: id=mtd0,file=,if=mtd,bus=0,unit=0 Improve this to point to the offending bit of configuration: qemu-system-x86_64: -drive if=mtd: warning: machine type does not support if=mtd,bus=0,unit=0 Especially nice when it's hidden behind -readconfig foo.cfg: qemu-system-x86_64:foo.cfg:140: warning: machine type does not support if=mtd,bus=0,unit=0 Signed-off-by: Markus Armbruster Message-Id: <1487153147-11530-7-git-send-email-armbru@redhat.com> Reviewed-by: John Snow --- blockdev.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/blockdev.c b/blockdev.c index db82ac97e5..eb75f35540 100644 --- a/blockdev.c +++ b/blockdev.c @@ -231,6 +231,7 @@ bool drive_check_orphaned(void) { BlockBackend *blk; DriveInfo *dinfo; + Location loc; bool rs = false; for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { @@ -239,10 +240,12 @@ bool drive_check_orphaned(void) /* Unless this is a default drive, this may be an oversight. */ if (!blk_get_attached_dev(blk) && !dinfo->is_default && dinfo->type != IF_NONE) { - fprintf(stderr, "Warning: Orphaned drive without device: " - "id=%s,file=%s,if=%s,bus=%d,unit=%d\n", - blk_name(blk), blk_bs(blk) ? blk_bs(blk)->filename : "", - if_name[dinfo->type], dinfo->bus, dinfo->unit); + loc_push_none(&loc); + qemu_opts_loc_restore(dinfo->opts); + error_report("warning: machine type does not support" + " if=%s,bus=%d,unit=%d", + if_name[dinfo->type], dinfo->bus, dinfo->unit); + loc_pop(&loc); rs = true; } } From 720b8dc052ae2783d9b8cc2263eccc5bcec04418 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 11:05:46 +0100 Subject: [PATCH 07/11] blockdev: Make orphaned -drive fatal Block backends defined with "-drive if=T" with T other than "none" are meant to be picked up by machine initialization code: a suitable frontend gets created and wired up automatically. If machine initialization code doesn't comply, the block backend remains unused. This triggers a warning since commit a66c9dc, v2.2.0. Drives created by default are exempted; use -nodefaults to get rid of them. Turn this warning into an error. Signed-off-by: Markus Armbruster Message-Id: <1487153147-11530-8-git-send-email-armbru@redhat.com> Reviewed-by: John Snow --- blockdev.c | 14 +++++++------- include/sysemu/blockdev.h | 2 +- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/blockdev.c b/blockdev.c index eb75f35540..bbf9d4d8f1 100644 --- a/blockdev.c +++ b/blockdev.c @@ -227,30 +227,30 @@ DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit) return NULL; } -bool drive_check_orphaned(void) +void drive_check_orphaned(void) { BlockBackend *blk; DriveInfo *dinfo; Location loc; - bool rs = false; + bool orphans = false; for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { dinfo = blk_legacy_dinfo(blk); - /* If dinfo->bdrv->dev is NULL, it has no device attached. */ - /* Unless this is a default drive, this may be an oversight. */ if (!blk_get_attached_dev(blk) && !dinfo->is_default && dinfo->type != IF_NONE) { loc_push_none(&loc); qemu_opts_loc_restore(dinfo->opts); - error_report("warning: machine type does not support" + error_report("machine type does not support" " if=%s,bus=%d,unit=%d", if_name[dinfo->type], dinfo->bus, dinfo->unit); loc_pop(&loc); - rs = true; + orphans = true; } } - return rs; + if (orphans) { + exit(1); + } } DriveInfo *drive_get_by_index(BlockInterfaceType type, int index) diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h index 351a039c10..ac22f2ae1f 100644 --- a/include/sysemu/blockdev.h +++ b/include/sysemu/blockdev.h @@ -48,7 +48,7 @@ BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo); void override_max_devs(BlockInterfaceType type, int max_devs); DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit); -bool drive_check_orphaned(void); +void drive_check_orphaned(void); DriveInfo *drive_get_by_index(BlockInterfaceType type, int index); int drive_get_max_bus(BlockInterfaceType type); int drive_get_max_devs(BlockInterfaceType type); From 8f2d75e81d5eb2715be653010258ce9d57549de7 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 11:05:47 +0100 Subject: [PATCH 08/11] hw: Drop superfluous special checks for orphaned -drive MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We've traditionally rejected orphans here and there, but not systematically. For instance, the sun4m machines have an onboard SCSI HBA (bus=0), and have always rejected bus>0. Other machines with an onboard SCSI HBA don't. Commit a66c9dc made all orphans trigger a warning, and the previous commit turned this into an error. The checks "here and there" are now redundant. Drop them. Note that the one in mips_jazz.c was wrong: it rejected bus > MAX_FD, but MAX_FD is the number of floppy drives per bus. Error messages change from $ qemu-system-x86_64 -drive if=ide,bus=2 qemu-system-x86_64: Too many IDE buses defined (3 > 2) $ qemu-system-mips64 -M magnum,accel=qtest -drive if=floppy,bus=2,id=fd1 qemu: too many floppy drives $ qemu-system-sparc -M LX -drive if=scsi,bus=1 qemu: too many SCSI bus to $ qemu-system-x86_64 -drive if=ide,bus=2 qemu-system-x86_64: -drive if=ide,bus=2: machine type does not support if=ide,bus=2,unit=0 $ qemu-system-mips64 -M magnum,accel=qtest -drive if=floppy,bus=2,id=fd1 qemu-system-mips64: -drive if=floppy,bus=2,id=fd1: machine type does not support if=floppy,bus=2,unit=0 $ qemu-system-sparc -M LX -drive if=scsi,bus=1 qemu-system-sparc: -drive if=scsi,bus=1: machine type does not support if=scsi,bus=1,unit=0 Cc: John Snow Cc: "Hervé Poussineau" Cc: Mark Cave-Ayland Signed-off-by: Markus Armbruster Message-Id: <1487153147-11530-9-git-send-email-armbru@redhat.com> Reviewed-by: John Snow --- hw/ide/core.c | 17 ----------------- hw/mips/mips_jazz.c | 4 ---- hw/sparc/sun4m.c | 5 ----- 3 files changed, 26 deletions(-) diff --git a/hw/ide/core.c b/hw/ide/core.c index 43709e545f..cfa5de6ebf 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -2840,23 +2840,6 @@ const VMStateDescription vmstate_ide_bus = { void ide_drive_get(DriveInfo **hd, int n) { int i; - int highest_bus = drive_get_max_bus(IF_IDE) + 1; - int max_devs = drive_get_max_devs(IF_IDE); - int n_buses = max_devs ? (n / max_devs) : n; - - /* - * Note: The number of actual buses available is not known. - * We compute this based on the size of the DriveInfo* array, n. - * If it is less than max_devs * , - * We will stop looking for drives prematurely instead of overfilling - * the array. - */ - - if (highest_bus > n_buses) { - error_report("Too many IDE buses defined (%d > %d)", - highest_bus, n_buses); - exit(1); - } for (i = 0; i < n; i++) { hd[i] = drive_get_by_index(IF_IDE, i); diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c index 73f6c9facf..1cef581878 100644 --- a/hw/mips/mips_jazz.c +++ b/hw/mips/mips_jazz.c @@ -291,10 +291,6 @@ static void mips_jazz_init(MachineState *machine, qdev_get_gpio_in(rc4030, 5), &esp_reset, &dma_enable); /* Floppy */ - if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) { - fprintf(stderr, "qemu: too many floppy drives\n"); - exit(1); - } for (n = 0; n < MAX_FD; n++) { fds[n] = drive_get(IF_FLOPPY, 0, n); } diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c index f5b6efddf8..61416a6426 100644 --- a/hw/sparc/sun4m.c +++ b/hw/sparc/sun4m.c @@ -989,11 +989,6 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, slavio_misc_init(hwdef->slavio_base, hwdef->aux1_base, hwdef->aux2_base, slavio_irq[30], fdc_tc); - if (drive_get_max_bus(IF_SCSI) > 0) { - fprintf(stderr, "qemu: too many SCSI bus\n"); - exit(1); - } - esp_init(hwdef->esp_base, 2, espdma_memory_read, espdma_memory_write, espdma, espdma_irq, &esp_reset, &dma_enable); From fb8b660e1718aaa77cccbda67af5727bb4a6250f Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 13:18:54 +0100 Subject: [PATCH 09/11] hw/scsi: Concentrate -drive if=scsi auto-create in one place The logic to create frontends for -drive if=scsi is in SCSI HBAs. For all other interface types, it's in machine initialization code. A few machine types create the SCSI HBAs necessary for that. That's also not done for other interface types. I'm going to deprecate these SCSI eccentricities. In preparation for that, create the frontends in main() instead of the SCSI HBAs, by calling new function scsi_legacy_handle_cmdline() there. Note that not all SCSI HBAs create frontends. Take care not to change that. Signed-off-by: Markus Armbruster Message-Id: <1487161136-9018-2-git-send-email-armbru@redhat.com> Acked-By: Paolo Bonzini --- hw/scsi/esp-pci.c | 3 --- hw/scsi/esp.c | 6 ------ hw/scsi/lsi53c895a.c | 3 --- hw/scsi/megasas.c | 4 ---- hw/scsi/mptsas.c | 4 ---- hw/scsi/scsi-bus.c | 45 +++++++++++++++++++++++++++++++++++------- hw/scsi/spapr_vscsi.c | 3 --- hw/scsi/virtio-scsi.c | 8 -------- include/hw/scsi/scsi.h | 3 ++- vl.c | 4 ++++ 10 files changed, 44 insertions(+), 39 deletions(-) diff --git a/hw/scsi/esp-pci.c b/hw/scsi/esp-pci.c index 595f88b352..e295d88939 100644 --- a/hw/scsi/esp-pci.c +++ b/hw/scsi/esp-pci.c @@ -367,9 +367,6 @@ static void esp_pci_scsi_realize(PCIDevice *dev, Error **errp) s->irq = pci_allocate_irq(dev); scsi_bus_new(&s->bus, sizeof(s->bus), d, &esp_pci_scsi_info, NULL); - if (!d->hotplugged) { - scsi_bus_legacy_handle_cmdline(&s->bus, errp); - } } static void esp_pci_scsi_uninit(PCIDevice *d) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 5a5a4e946a..eee831efeb 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -690,7 +690,6 @@ static void sysbus_esp_realize(DeviceState *dev, Error **errp) SysBusDevice *sbd = SYS_BUS_DEVICE(dev); SysBusESPState *sysbus = ESP(dev); ESPState *s = &sysbus->esp; - Error *err = NULL; sysbus_init_irq(sbd, &s->irq); assert(sysbus->it_shift != -1); @@ -703,11 +702,6 @@ static void sysbus_esp_realize(DeviceState *dev, Error **errp) qdev_init_gpio_in(dev, sysbus_esp_gpio_demux, 2); scsi_bus_new(&s->bus, sizeof(s->bus), dev, &esp_scsi_info, NULL); - scsi_bus_legacy_handle_cmdline(&s->bus, &err); - if (err != NULL) { - error_propagate(errp, err); - return; - } } static void sysbus_esp_hard_reset(DeviceState *dev) diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c index feb1191315..292fa8795f 100644 --- a/hw/scsi/lsi53c895a.c +++ b/hw/scsi/lsi53c895a.c @@ -2216,9 +2216,6 @@ static void lsi_scsi_realize(PCIDevice *dev, Error **errp) QTAILQ_INIT(&s->queue); scsi_bus_new(&s->bus, sizeof(s->bus), d, &lsi_scsi_info, NULL); - if (!d->hotplugged) { - scsi_bus_legacy_handle_cmdline(&s->bus, errp); - } } static void lsi_scsi_unrealize(DeviceState *dev, Error **errp) diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index 1a8b04c6d7..e3d59b7c83 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -2325,7 +2325,6 @@ static const struct SCSIBusInfo megasas_scsi_info = { static void megasas_scsi_realize(PCIDevice *dev, Error **errp) { - DeviceState *d = DEVICE(dev); MegasasState *s = MEGASAS(dev); MegasasBaseClass *b = MEGASAS_DEVICE_GET_CLASS(s); uint8_t *pci_conf; @@ -2426,9 +2425,6 @@ static void megasas_scsi_realize(PCIDevice *dev, Error **errp) scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev), &megasas_scsi_info, NULL); - if (!d->hotplugged) { - scsi_bus_legacy_handle_cmdline(&s->bus, errp); - } } static Property megasas_properties_gen1[] = { diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c index ad87e78fe2..2e091c0156 100644 --- a/hw/scsi/mptsas.c +++ b/hw/scsi/mptsas.c @@ -1271,7 +1271,6 @@ static const struct SCSIBusInfo mptsas_scsi_info = { static void mptsas_scsi_realize(PCIDevice *dev, Error **errp) { - DeviceState *d = DEVICE(dev); MPTSASState *s = MPT_SAS(dev); Error *err = NULL; int ret; @@ -1326,9 +1325,6 @@ static void mptsas_scsi_realize(PCIDevice *dev, Error **errp) QTAILQ_INIT(&s->pending); scsi_bus_new(&s->bus, sizeof(s->bus), &dev->qdev, &mptsas_scsi_info, NULL); - if (!d->hotplugged) { - scsi_bus_legacy_handle_cmdline(&s->bus, errp); - } } static void mptsas_scsi_uninit(PCIDevice *dev) diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c index 5940cb160c..b9111eea1e 100644 --- a/hw/scsi/scsi-bus.c +++ b/hw/scsi/scsi-bus.c @@ -261,12 +261,11 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk, return SCSI_DEVICE(dev); } -void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, Error **errp) +void scsi_bus_legacy_handle_cmdline(SCSIBus *bus) { Location loc; DriveInfo *dinfo; int unit; - Error *err = NULL; loc_push_none(&loc); for (unit = 0; unit <= bus->info->max_target; unit++) { @@ -276,15 +275,47 @@ void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, Error **errp) } qemu_opts_loc_restore(dinfo->opts); scsi_bus_legacy_add_drive(bus, blk_by_legacy_dinfo(dinfo), - unit, false, -1, NULL, &err); - if (err != NULL) { - error_propagate(errp, err); - break; - } + unit, false, -1, 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); + } + + 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)); diff --git a/hw/scsi/spapr_vscsi.c b/hw/scsi/spapr_vscsi.c index 6090a204a0..7d447718eb 100644 --- a/hw/scsi/spapr_vscsi.c +++ b/hw/scsi/spapr_vscsi.c @@ -1206,9 +1206,6 @@ static void spapr_vscsi_realize(VIOsPAPRDevice *dev, Error **errp) scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev), &vscsi_scsi_info, NULL); - if (!dev->qdev.hotplugged) { - scsi_bus_legacy_handle_cmdline(&s->bus, errp); - } } void spapr_vscsi_create(VIOsPAPRBus *bus) diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index b01030b745..4fb9259447 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -897,14 +897,6 @@ static void virtio_scsi_device_realize(DeviceState *dev, Error **errp) /* override default SCSI bus hotplug-handler, with virtio-scsi's one */ qbus_set_hotplug_handler(BUS(&s->bus), dev, &error_abort); - if (!dev->hotplugged) { - scsi_bus_legacy_handle_cmdline(&s->bus, &err); - if (err != NULL) { - error_propagate(errp, err); - return; - } - } - virtio_scsi_dataplane_setup(s, errp); } diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h index 9bad49e917..eeef949b66 100644 --- a/include/hw/scsi/scsi.h +++ b/include/hw/scsi/scsi.h @@ -177,7 +177,8 @@ static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d) SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk, int unit, bool removable, int bootindex, const char *serial, Error **errp); -void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, Error **errp); +void scsi_bus_legacy_handle_cmdline(SCSIBus *bus); +void scsi_legacy_handle_cmdline(void); /* * Predefined sense codes diff --git a/vl.c b/vl.c index 27d982981a..ab40889ad6 100644 --- a/vl.c +++ b/vl.c @@ -62,6 +62,7 @@ int main(int argc, char **argv) #include "hw/usb.h" #include "hw/i386/pc.h" #include "hw/isa/isa.h" +#include "hw/scsi/scsi.h" #include "hw/bt.h" #include "sysemu/watchdog.h" #include "hw/smbios/smbios.h" @@ -4509,6 +4510,9 @@ int main(int argc, char **argv, char **envp) rom_reset_order_override(); + /* Create frontends for -drive if=scsi */ + scsi_legacy_handle_cmdline(); + /* Did we create any drives that we failed to create a device for? */ drive_check_orphaned(); From a64aa5785d5d26878d0a80ce64625b61be8fde60 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 13:18:55 +0100 Subject: [PATCH 10/11] hw: Deprecate -drive if=scsi with non-onboard HBAs Block backends defined with "-drive if=T" with T other than "none" are meant to be picked up by machine initialization code: a suitable frontend gets created and wired up automatically. Drives defined with if=scsi are also picked up by SCSI HBAs added with -device, unlike other interface types. Deprecate this usage, as follows. Create the frontends for onboard HBAs in machine initialization code, exactly like we do for if=ide and other interface types. Change scsi_legacy_handle_cmdline() to create a frontend only when it's still missing, and warn that this usage is deprecated. Signed-off-by: Markus Armbruster Message-Id: <1487161136-9018-3-git-send-email-armbru@redhat.com> --- hw/arm/realview.c | 2 +- hw/arm/versatilepb.c | 2 +- hw/i386/pc.c | 2 +- hw/scsi/lsi53c895a.c | 7 +++++++ hw/scsi/scsi-bus.c | 15 +++++++++++++-- hw/scsi/spapr_vscsi.c | 2 ++ include/hw/pci/pci.h | 2 ++ include/hw/scsi/scsi.h | 2 +- vl.c | 8 +++++++- 9 files changed, 35 insertions(+), 7 deletions(-) diff --git a/hw/arm/realview.c b/hw/arm/realview.c index 8c11c7ae77..b7d4753400 100644 --- a/hw/arm/realview.c +++ b/hw/arm/realview.c @@ -259,7 +259,7 @@ static void realview_init(MachineState *machine, } n = drive_get_max_bus(IF_SCSI); while (n >= 0) { - pci_create_simple(pci_bus, -1, "lsi53c895a"); + lsi53c895a_create(pci_bus); n--; } } diff --git a/hw/arm/versatilepb.c b/hw/arm/versatilepb.c index 7b5cb36d5a..b0e9f5be65 100644 --- a/hw/arm/versatilepb.c +++ b/hw/arm/versatilepb.c @@ -290,7 +290,7 @@ static void versatile_init(MachineState *machine, int board_id) } n = drive_get_max_bus(IF_SCSI); while (n >= 0) { - pci_create_simple(pci_bus, -1, "lsi53c895a"); + lsi53c895a_create(pci_bus); n--; } diff --git a/hw/i386/pc.c b/hw/i386/pc.c index a555c35d91..c2c75e23da 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1652,7 +1652,7 @@ void pc_pci_device_init(PCIBus *pci_bus) max_bus = drive_get_max_bus(IF_SCSI); for (bus = 0; bus <= max_bus; bus++) { - pci_create_simple(pci_bus, -1, "lsi53c895a"); + lsi53c895a_create(pci_bus); } } diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c index 292fa8795f..595c26017a 100644 --- a/hw/scsi/lsi53c895a.c +++ b/hw/scsi/lsi53c895a.c @@ -2268,3 +2268,10 @@ static void lsi53c895a_register_types(void) } type_init(lsi53c895a_register_types) + +void lsi53c895a_create(PCIBus *bus) +{ + LSIState *s = LSI53C895A(pci_create_simple(bus, -1, "lsi53c895a")); + + scsi_bus_legacy_handle_cmdline(&s->bus, false); +} diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c index b9111eea1e..8cc80bf177 100644 --- a/hw/scsi/scsi-bus.c +++ b/hw/scsi/scsi-bus.c @@ -261,7 +261,7 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk, return SCSI_DEVICE(dev); } -void scsi_bus_legacy_handle_cmdline(SCSIBus *bus) +void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, bool deprecated) { Location loc; DriveInfo *dinfo; @@ -274,6 +274,17 @@ void scsi_bus_legacy_handle_cmdline(SCSIBus *bus) 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) { + error_report("warning: 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, NULL, &error_fatal); } @@ -304,7 +315,7 @@ 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); + scsi_bus_legacy_handle_cmdline(bus, true); } return 0; diff --git a/hw/scsi/spapr_vscsi.c b/hw/scsi/spapr_vscsi.c index 7d447718eb..55ee48c4da 100644 --- a/hw/scsi/spapr_vscsi.c +++ b/hw/scsi/spapr_vscsi.c @@ -1215,6 +1215,8 @@ 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); } static int spapr_vscsi_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off) diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 05ef14b6f5..6983f13745 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -688,6 +688,8 @@ PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn, PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name); PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name); +void lsi53c895a_create(PCIBus *bus); + qemu_irq pci_allocate_irq(PCIDevice *pci_dev); void pci_set_irq(PCIDevice *pci_dev, int level); diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h index eeef949b66..6b85786dbf 100644 --- a/include/hw/scsi/scsi.h +++ b/include/hw/scsi/scsi.h @@ -177,7 +177,7 @@ static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d) SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk, int unit, bool removable, int bootindex, const char *serial, Error **errp); -void scsi_bus_legacy_handle_cmdline(SCSIBus *bus); +void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, bool deprecated); void scsi_legacy_handle_cmdline(void); /* diff --git a/vl.c b/vl.c index ab40889ad6..b5d0a19811 100644 --- a/vl.c +++ b/vl.c @@ -4510,7 +4510,13 @@ int main(int argc, char **argv, char **envp) rom_reset_order_override(); - /* Create frontends for -drive if=scsi */ + /* + * 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? */ From f778a82f0c179634892ea716970d4d35264dc841 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 15 Feb 2017 13:18:56 +0100 Subject: [PATCH 11/11] hw/i386: Deprecate -drive if=scsi with PC machine types The PC machines (pc-q35-* pc-i440fx-* pc-* isapc xenfv) automatically create lsi53c895a SCSI HBAs and SCSI devices to honor -drive if=scsi. For giggles, try -drive if=scsi,bus=25,media=cdrom --- this makes QEMU create 25 of them. lsi53c895a is thoroughly obsolete (PCI Ultra2 SCSI, ca. 2000), and currently has no maintainer in QEMU. megasas is a better choice, except with old OSes that lack drivers. virtio-scsi is a much better choice when you have a driver, but only (newish) Linux comes with one in the box. There is no good default that works for all guests. Encourage users to pick a non-obsolete SCSI HBA that works for them by deprecating -drive if=scsi. Signed-off-by: Markus Armbruster Message-Id: <1487161136-9018-4-git-send-email-armbru@redhat.com> Acked-By: Paolo Bonzini --- hw/i386/pc.c | 8 +++++++- qemu-options.hx | 5 ----- tests/qemu-iotests/051.pc.out | 12 ++++++++---- 3 files changed, 15 insertions(+), 10 deletions(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index c2c75e23da..60b0946be3 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1650,9 +1650,15 @@ 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++) { - lsi53c895a_create(pci_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. + */ } } diff --git a/qemu-options.hx b/qemu-options.hx index 809b2b0d8c..1e815ef520 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -654,11 +654,6 @@ If you don't specify the "file=" argument, you define an empty drive: qemu-system-i386 -drive if=ide,index=1,media=cdrom @end example -You can connect a SCSI disk with unit ID 6 on the bus #0: -@example -qemu-system-i386 -drive file=file,if=scsi,bus=0,unit=6 -@end example - Instead of @option{-fda}, @option{-fdb}, you can use: @example qemu-system-i386 -drive file=file,index=0,if=floppy diff --git a/tests/qemu-iotests/051.pc.out b/tests/qemu-iotests/051.pc.out index 603bb768d6..f8047a2e45 100644 --- a/tests/qemu-iotests/051.pc.out +++ b/tests/qemu-iotests/051.pc.out @@ -118,7 +118,8 @@ QEMU X.Y.Z monitor - type 'help' for more information Testing: -drive if=scsi,media=cdrom QEMU X.Y.Z monitor - type 'help' for more information -(qemu) qququiquit +(qemu) QEMU_PROG: -drive if=scsi,media=cdrom: warning: bus=0,unit=0 is deprecated with this machine type +qququiquit Testing: -drive if=ide QEMU X.Y.Z monitor - type 'help' for more information @@ -127,7 +128,8 @@ QEMU_PROG: Initialization of device ide-hd failed: Device initialization failed. Testing: -drive if=scsi QEMU X.Y.Z monitor - type 'help' for more information -(qemu) QEMU_PROG: Initialization of device lsi53c895a failed: Device needs media, but drive is empty +(qemu) QEMU_PROG: -drive if=scsi: warning: bus=0,unit=0 is deprecated with this machine type +QEMU_PROG: -drive if=scsi: Device needs media, but drive is empty Testing: -drive if=virtio QEMU X.Y.Z monitor - type 'help' for more information @@ -172,7 +174,8 @@ QEMU X.Y.Z monitor - type 'help' for more information Testing: -drive file=TEST_DIR/t.qcow2,if=scsi,media=cdrom,readonly=on QEMU X.Y.Z monitor - type 'help' for more information -(qemu) qququiquit +(qemu) QEMU_PROG: -drive file=TEST_DIR/t.qcow2,if=scsi,media=cdrom,readonly=on: warning: bus=0,unit=0 is deprecated with this machine type +qququiquit Testing: -drive file=TEST_DIR/t.qcow2,if=ide,readonly=on QEMU X.Y.Z monitor - type 'help' for more information @@ -181,7 +184,8 @@ QEMU_PROG: Initialization of device ide-hd failed: Device initialization failed. Testing: -drive file=TEST_DIR/t.qcow2,if=scsi,readonly=on QEMU X.Y.Z monitor - type 'help' for more information -(qemu) qququiquit +(qemu) QEMU_PROG: -drive file=TEST_DIR/t.qcow2,if=scsi,readonly=on: warning: bus=0,unit=0 is deprecated with this machine type +qququiquit Testing: -drive file=TEST_DIR/t.qcow2,if=virtio,readonly=on QEMU X.Y.Z monitor - type 'help' for more information