Every invocation of bmdma_init() is followed by `d->bmdma[i].bus = &d->bus[i]`.
Resolve this redundancy by extracting it into bmdma_init().
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20230531211043.41724-5-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Resolves circular depencency between IDE function and south bridge.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20230531211043.41724-3-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Exposing the legacy IDE interrupts as GPIOs allows them to be connected in the
parent device through qdev_connect_gpio_out(), i.e. without accessing private
data of TYPE_PCI_IDE.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20230531211043.41724-2-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
We use the user_ss[] array to hold the user emulation sources,
and the softmmu_ss[] array to hold the system emulation ones.
Hold the latter in the 'system_ss[]' array for parity with user
emulation.
Mechanical change doing:
$ sed -i -e s/softmmu_ss/system_ss/g $(git grep -l softmmu_ss)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230613133347.82210-10-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This backslash obviously does not belong here, so remove it.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-Id: <20230601134434.519805-2-nks@flawful.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This protects devices from bh->mmio reentrancy issues.
Thanks: Thomas Huth <thuth@redhat.com> for diagnosing OS X test failure.
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230427211013.2994127-5-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Bring the block files in line with the QEMU coding style, with spaces
for indentation. This patch partially resolves the issue 371.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/371
Signed-off-by: Yeqi Fu <fufuyqqqqqq@gmail.com>
Message-Id: <20230315043229.62100-1-fufuyqqqqqq@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: John Snow <jsnow@redhat.com>
Message-Id: <20210511041848.2743312-5-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-21-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-20-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-19-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The function is only used inside ide/pci.c, so doesn't need to be exported.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-18-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-17-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
idebus_active_if() operates on a IDEBus; rename it as
ide_bus_active_if() to emphasize its first argument
is a IDEBus.
Mechanical change using:
$ sed -i -e 's/idebus_active_if/ide_bus_active_if/g' \
$(git grep -l idebus_active_if)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-16-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
ide_init2() initializes a IDEBus, and set its output IRQ.
To emphasize this, rename it as ide_bus_init_output_irq().
Mechanical change using:
$ sed -i -e 's/ide_init2/ide_bus_init_output_irq/g' \
$(git grep -l ide_init2)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-15-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
ide_exec_cmd() operates on a IDEBus; rename it as
ide_bus_exec_cmd() to emphasize its first argument
is a IDEBus.
Mechanical change using:
$ sed -i -e 's/ide_exec_cmd/ide_bus_exec_cmd/g' \
$(git grep -wl ide_exec_cmd)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-14-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
ide_register_restart_cb() operates on a IDEBus; rename it as
ide_bus_register_restart_cb() to emphasize its first argument
is a IDEBus.
Mechanical change using:
$ sed -i -e 's/ide_register_restart_cb/ide_bus_register_restart_cb/g' \
$(git grep -l ide_register_restart_cb)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-13-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
ide_create_drive() operates on a IDEBus; rename it as
ide_bus_create_drive() to emphasize its first argument
is a IDEBus.
Mechanical change using:
$ sed -i -e 's/ide_create_drive/ide_bus_create_drive/g' \
$(git grep -wl ide_create_drive)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-12-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
ide_set_irq() operates on a IDEBus; rename it as
ide_bus_set_irq() to emphasize its first argument
is a IDEBus.
Mechanical change using:
$ sed -i -e 's/ide_set_irq/ide_bus_set_irq/g' \
$(git grep -l ide_set_irq)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-11-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Only include "hw/irq.h" where appropriate.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-10-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Only atapi.c requires the SCSI constants. No need to include
it in all files including "hw/ide/internal.h".
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215112712.23110-7-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
The intermediate ISAIDEState::irq variable just add noise, remove it.
Message-Id: <20230215112712.23110-6-philmd@linaro.org>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
"hw/ide.h" is a mixed bag of lost IDE declarations.
Extract isa_ide_init() and the TYPE_ISA_IDE QOM declarations
to a new "hw/ide/isa.h" header.
Rename ISAIDEState::isairq as 'irqnum' to emphasize this is
not a qemu_irq object but the number (index) of an ISA IRQ.
Message-Id: <20230215112712.23110-5-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
"hw/ide.h" is a mixed bag of lost IDE declarations.
Extract mmio_ide_init_drives() and the TYPE_MMIO_IDE QOM
declarations to a new "hw/ide/mmio.h" header.
Document the SysBus interface.
Message-Id: <20230215112712.23110-4-philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Following docs/devel/style.rst guidelines, rename MMIOIDEState
as IdeMmioState.
Having the structure name and its typedef named equally,
we can manually convert from the old DECLARE_INSTANCE_CHECKER()
macro to the more recent OBJECT_DECLARE_SIMPLE_TYPE().
Note, due to that name mismatch, this macro wasn't automatically
converted during commit 8063396bf3 ("Use OBJECT_DECLARE_SIMPLE_TYPE
when possible").
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230220091358.17038-3-philmd@linaro.org>
Fixes: e4baa9f00b ("AHCI: Replace DPRINTF with trace-events")
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230217103130.42077-1-f.ebner@proxmox.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
mostly vhost-vdpa:
guest announce feature emulation when using shadow virtqueue
support for configure interrupt
startup speed ups
an acpi change to only generate cluster node in PPTT when specified for arm
misc fixes, cleanups
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
virtio,pc,pci: features, cleanups, fixes
mostly vhost-vdpa:
guest announce feature emulation when using shadow virtqueue
support for configure interrupt
startup speed ups
an acpi change to only generate cluster node in PPTT when specified for arm
misc fixes, cleanups
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Sun 08 Jan 2023 08:01:39 GMT
# gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (50 commits)
vhost-scsi: fix memleak of vsc->inflight
acpi: cpuhp: fix guest-visible maximum access size to the legacy reg block
tests: acpi: aarch64: Add *.topology tables
tests: acpi: aarch64: Add topology test for aarch64
tests: acpi: Add and whitelist *.topology blobs
tests: virt: Update expected ACPI tables for virt test
hw/acpi/aml-build: Only generate cluster node in PPTT when specified
tests: virt: Allow changes to PPTT test table
virtio-pci: fix proxy->vector_irqfd leak in virtio_pci_set_guest_notifiers
vdpa: commit all host notifier MRs in a single MR transaction
vhost: configure all host notifiers in a single MR transaction
vhost: simplify vhost_dev_enable_notifiers
vdpa: harden the error path if get_iova_range failed
vdpa-dev: get iova range explicitly
docs/devel: Rules on #include in headers
include: Include headers where needed
include/hw/virtio: Break inclusion loop
include/hw/cxl: Break inclusion loop cxl_pci.h and cxl_cdat_h
include/hw/pci: Include hw/pci/pci.h where needed
include/hw/pci: Split pci_device.h off pci.h
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
PCIDeviceClass and PCIDevice are defined in pci.h. Many users of the
header don't actually need them. Similar structs live in their own
headers: PCIBusClass and PCIBus in pci_bus.h, PCIBridge in
pci_bridge.h, PCIHostBridgeClass and PCIHostState in pci_host.h,
PCIExpressHost in pcie_host.h, and PCIERootPortClass, PCIEPort, and
PCIESlot in pcie_port.h.
Move PCIDeviceClass and PCIDeviceClass to new pci_device.h, along with
the code that needs them. Adjust include directives.
This also enables the next commit.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221222100330.380143-6-armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This allows attaching IDE_CFATA device to an IDE bus. Behaves like a
CompactFlash card in True IDE mode.
Tested with:
qemu-system-i386 \
-device driver=ide-cf,drive=cf,bus=ide.0 \
-drive id=cf,index=0,format=raw,if=none,file=cf.img
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Message-Id: <20221130120319.706885-1-lkundrak@v3.sk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
CompactFlash uses features 0x01 and 0x81 to enable/disable 8-bit data
path. Implement them.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Message-Id: <20221130120238.706717-1-lkundrak@v3.sk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All that is left in mac.h now belongs to the nvram emulation so rename
it accordingly and only include it where it is really used.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <b82449369f718c0e207fe8c332fab550fa0230c0.1666957578.git.balaton@eik.bme.hu>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221022150508.26830-9-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Establishes consistency with other (VIA) devices.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220901114127.53914-6-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Currently the microdrive code uses device_legacy_reset() to reset
itself, and has its reset method call reset on the IDE bus as the
last thing it does. Switch to using device_cold_reset().
The only concrete microdrive device is the TYPE_DSCM1XXXX; it is not
command-line pluggable, so it is used only by the old pxa2xx Arm
boards 'akita', 'borzoi', 'spitz', 'terrier' and 'tosa'.
You might think that this would result in the IDE bus being
reset automatically, but it does not, because the IDEBus type
does not set the BusClass::reset method. Instead the controller
must explicitly call ide_bus_reset(). We therefore leave that
call in md_reset().
Note also that because the PCMCIA card device is a direct subclass of
TYPE_DEVICE and we don't model the PCMCIA controller-to-card
interface as a qbus, PCMCIA cards are not on any qbus and so they
don't get reset when the system is reset. The reset only happens via
the dscm1xxxx_attach() and dscm1xxxx_detach() functions during
machine creation.
Because our aim here is merely to try to get rid of calls to the
device_legacy_reset() function, we leave these other dubious
reset-related issues alone. (They all stem from this code being
absolutely ancient.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20221013174042.1602926-1-peter.maydell@linaro.org
CHS-based disk utilities and operating systems may adjust the logical
geometry of a hard drive to cope with the expectations or limitations
of software using the ATA INITIALIZE_DEVICE_PARAMETERS command.
Prior to this patch, INITIALIZE_DEVICE_PARAMETERS was a nop that
always returned success, raising the possibility of data loss or
corruption if the CHS<->LBA translation redirected a write to the
wrong sector.
* hw/ide/core.c
ide_reset():
Reset the logical CHS geometry of the hard disk when the power-on
defaults feature is enabled.
cmd_specify():
a) New function implementing INITIALIZE_DEVICE_PARAMETERS.
b) Ignore calls for empty or ATAPI devices.
cmd_set_features():
Implement the power-on defaults enable and disable features.
struct ide_cmd_table:
Switch WIN_SPECIFY from cmd_nop() to cmd_specify().
ide_init_drive():
Set new fields 'drive_heads' and 'drive_sectors' based upon the
actual disk geometry.
* include/hw/ide/internal.h
struct IDEState:
a) Store the actual drive CHS values within the new fields
'drive_heads' and 'drive_sectors.'
b) Track whether a soft IDE reset should also reset the logical CHS
geometry of the hard disk within the new field 'reset_reverts'.
Signed-off-by: Lev Kujawski <lkujaw@member.fsf.org>
Message-Id: <20220707031140.158958-7-lkujaw@member.fsf.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Prior to this patch, cmd_exec_dev_diagnostic relied upon
ide_set_signature to clear the device register. While the
preservation of the drive bit by ide_set_signature is necessary for
the DEVICE RESET, IDENTIFY DEVICE, and READ SECTOR commands,
ATA/ATAPI-6 specifies that "DEV shall be cleared to zero" for EXECUTE
DEVICE DIAGNOSTIC.
This deviation was uncovered by the ATACT Device Testing Program
written by Hale Landis.
Signed-off-by: Lev Kujawski <lkujaw@member.fsf.org>
Message-Id: <20220707031140.158958-3-lkujaw@member.fsf.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eliminate the remaining TODOs in hw/ide/piix.c by:
* Using pci_set_{size} functions to write the PIIX PCI configuration
space instead of manipulating it directly as an array; and
* Documenting the default register values by reference to the
controlling specification.
Signed-off-by: Lev Kujawski <lkujaw@member.fsf.org>
Message-Id: <20220707031140.158958-1-lkujaw@member.fsf.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Swap 'buf' and 'bytes' around for consistency with
blk_co_{pread,pwrite}(), and in preparation to implement these functions
using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression blk, offset, buf, bytes, flags; @@
- blk_pread(blk, offset, buf, bytes, flags)
+ blk_pread(blk, offset, bytes, buf, flags)
@@ expression blk, offset, buf, bytes, flags; @@
- blk_pwrite(blk, offset, buf, bytes, flags)
+ blk_pwrite(blk, offset, bytes, buf, flags)
It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.
Overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-4-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
For consistency with other I/O functions, and in preparation to
implement it using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression blk, offset, buf, bytes; @@
- blk_pread(blk, offset, buf, bytes)
+ blk_pread(blk, offset, buf, bytes, 0)
It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.
Overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-3-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Commit 1b7fd72955 ("block: rename buffer_alignment to
guest_block_size") noted:
At this point, the field is set by the device emulation, but completely
ignored by the block layer.
The last time the value of buffer_alignment/guest_block_size was
actually used was before commit 339064d506 ("block: Don't use guest
sector size for qemu_blockalign()").
This value has not been used since 2013. Get rid of it.
Cc: Xie Yongji <xieyongji@bytedance.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220518130945.2657905-1-stefanha@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This function was declared in a generic and public header, implemented
in a device-specific source file but only used in xen_platform. Given its
'aux' parameter, this function is more xen-specific than piix-specific.
Also, the hardcoded magic constants seem to be generic and related to
PCIIDEState and IDEBus rather than piix.
Therefore, move this function to xen_platform, unexport it, and drop the
"piix3" in the function name as well.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220513180957.90514-4-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
The comment is based on commit message
ae4d2eb273 'xen-platform: add missing disk
unplug option'. Since it seems to describe design decisions and
limitations that still apply it seems worth having.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20220513180957.90514-3-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Prior to this patch, the pre-GRUB Solaris x86 bootloader would fail to
load on QEMU with the following screen output:
SunOS Secondary Boot version 3.00
prom_panic: Could not mount filesystem.
Entering boot debugger:
[136419]: _
This occurs because the bootloader issues an ATA IDENTIFY DEVICE
command, and then reads the resulting 256 words of parameter
information using inb rather than the correct inw. As the previous
behavior of QEMU was to return 0xFF and not advance the drive's sector
buffer, DRQ would never be cleared and the bootloader would be blocked
from selecting a secondary ATA device, such as an optical drive.
Resolves:
* [Bug 1639394] Unable to boot Solaris 8/9 x86 under Fedora 24
Signed-off-by: Lev Kujawski <lkujaw@member.fsf.org>
Message-Id: <20220520235200.1138450-1-lkujaw@member.fsf.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
isa_init_irq() has become a trivial one-line wrapper for isa_get_irq().
It can therefore be removed.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> (tpm_tis_isa)
Acked-by: Corey Minyard <cminyard@mvista.com> (isa_ipmi_bt, isa_ipmi_kcs)
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220301220037.76555-8-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220307134353.1950-14-philippe.mathieu.daude@gmail.com>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
* cleanups of qemu_oom_check() and qemu_memalign()
* target/arm/translate-neon: UNDEF if VLD1/VST1 stride bits are non-zero
* target/arm/translate-neon: Simplify align field check for VLD3
* GICv3 ITS: add more trace events
* GICv3 ITS: implement 8-byte accesses properly
* GICv3: fix minor issues with some trace/log messages
* ui/cocoa: Use the standard about panel
* target/arm: Provide cpu property for controling FEAT_LPA2
* hw/arm/virt: Disable LPA2 for -machine virt-6.2
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20220307' into staging
target-arm queue:
* cleanups of qemu_oom_check() and qemu_memalign()
* target/arm/translate-neon: UNDEF if VLD1/VST1 stride bits are non-zero
* target/arm/translate-neon: Simplify align field check for VLD3
* GICv3 ITS: add more trace events
* GICv3 ITS: implement 8-byte accesses properly
* GICv3: fix minor issues with some trace/log messages
* ui/cocoa: Use the standard about panel
* target/arm: Provide cpu property for controling FEAT_LPA2
* hw/arm/virt: Disable LPA2 for -machine virt-6.2
# gpg: Signature made Mon 07 Mar 2022 16:46:06 GMT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20220307:
hw/arm/virt: Disable LPA2 for -machine virt-6.2
target/arm: Provide cpu property for controling FEAT_LPA2
ui/cocoa: Use the standard about panel
hw/intc/arm_gicv3_cpuif: Fix register names in ICV_HPPIR read trace event
hw/intc/arm_gicv3: Fix missing spaces in error log messages
hw/intc/arm_gicv3: Specify valid and impl in MemoryRegionOps
hw/intc/arm_gicv3_its: Add trace events for table reads and writes
hw/intc/arm_gicv3_its: Add trace events for commands
target/arm/translate-neon: Simplify align field check for VLD3
target/arm/translate-neon: UNDEF if VLD1/VST1 stride bits are non-zero
osdep: Move memalign-related functions to their own header
util: Put qemu_vfree() in memalign.c
util: Use meson checks for valloc() and memalign() presence
util: Share qemu_try_memalign() implementation between POSIX and Windows
meson.build: Don't misdetect posix_memalign() on Windows
util: Return valid allocation for qemu_try_memalign() with zero size
util: Unify implementations of qemu_memalign()
util: Make qemu_oom_check() a static function
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Move the various memalign-related functions out of osdep.h and into
their own header, which we include only where they are used.
While we're doing this, add some brief documentation comments.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220226180723.1706285-10-peter.maydell@linaro.org
When we still have an AIOCB registered for DMA operations, we try to
settle the respective operation by draining the BlockBackend associated
with the IDE device.
However, this assumes that every DMA operation is associated with an
increment of the BlockBackend’s in-flight counter (e.g. through some
ongoing I/O operation), so that draining the BB until its in-flight
counter reaches 0 will settle all DMA operations. That is not the case:
For TRIM, the guest can issue a zero-length operation that will not
result in any I/O operation forwarded to the BlockBackend, and also not
increment the in-flight counter in any other way. In such a case,
blk_drain() will be a no-op if no other operations are in flight.
It is clear that if blk_drain() is a no-op, the value of
s->bus->dma->aiocb will not change between checking it in the `if`
condition and asserting that it is NULL after blk_drain().
The particular problem is that ide_issue_trim() creates a BH
(ide_trim_bh_cb()) to settle the TRIM request: iocb->common.cb() is
ide_dma_cb(), which will either create a new request, or find the
transfer to be done and call ide_set_inactive(), which clears
s->bus->dma->aiocb. Therefore, the blk_drain() must wait for
ide_trim_bh_cb() to run, which currently it will not always do.
To fix this issue, we increment the BlockBackend's in-flight counter
when the TRIM operation begins (in ide_issue_trim(), when the
ide_trim_bh_cb() BH is created) and decrement it when ide_trim_bh_cb()
is done.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2029980
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220120142259.120189-1-hreitz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
The "hardware version" machinery (qemu_set_hw_version(),
qemu_hw_version(), and the QEMU_HW_VERSION define) is used by fewer
than 10 files. Move it out from osdep.h into a new
qemu/hw-version.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220208200856.3558249-6-peter.maydell@linaro.org
Since commit 292e13142d, dma_buf_rw() returns a MemTxResult type.
Do not discard it, return it to the caller. Pass the previously
returned value (the QEMUSGList residual size, which was rarely used)
as an optional argument.
With this new API, SCSIRequest::residual might now be accessed via
a pointer. Since the size_t type does not have the same size on
32 and 64-bit host architectures, convert it to a uint64_t, which
is big enough to hold the residual size, and the type is constant
on both 32/64-bit hosts.
Update the few dma_buf_read() / dma_buf_write() callers to the new
API.
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220117125130.131828-1-f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220111184309.28637-10-f4bug@amsat.org>
Let devices specify transaction attributes when calling
dma_buf_read().
Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-13-philmd@redhat.com>
Let devices specify transaction attributes when calling
dma_buf_write().
Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-12-philmd@redhat.com>
Let devices specify transaction attributes when calling
dma_memory_map().
Patch created mechanically using spatch with this script:
@@
expression E1, E2, E3, E4;
@@
- dma_memory_map(E1, E2, E3, E4)
+ dma_memory_map(E1, E2, E3, E4, MEMTXATTRS_UNSPECIFIED)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211223115554.3155328-7-philmd@redhat.com>
The LBA28 capacity (at offsets 60/61 of identification) is supposed to
express the maximum size supported by LBA28 commands. If the device is
larger than this, we have to cap it to 2^28-1.
At least NetBSD happens to be using this value to determine whether to use
LBA28 or LBA48 for its commands, using LBA28 for sectors that don't need
LBA48. This commit thus fixes NetBSD access to disks larger than 128GiB.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Message-Id: <20210824104344.3878849-1-samuel.thibault@ens-lyon.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Use via_isa_set_irq() which better encapsulates irq handling in the
vt82xx model and avoids using isa_get_irq() that has a comment saying
it should not be used.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <26cb1848c9fc0360df7a57c2c9ba5e03c4a692b5.1634259980.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This model only works as a function of the via superio chip not as a
standalone PCI device.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211015092159.3E863748F57@zero.eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
The function ide_bus_new() does an in-place initialization. Rename
it to ide_bus_init() to follow our _init vs _new convention.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Acked-by: John Snow <jsnow@redhat.com> (Feel free to merge.)
Message-id: 20210923121153.23754-7-peter.maydell@linaro.org
Rename qbus_create_inplace() to qbus_init(); this is more in line
with our usual naming convention for functions that in-place
initialize objects.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20210923121153.23754-5-peter.maydell@linaro.org
The pci_ide_create_devs() function is declared i hw/ide/qdev.c:
$ git grep ide_create_drive
hw/ide/pci.c:491: ide_create_drive(d->bus + bus[i], unit[i], hd_table[i]);
hw/ide/qdev.c:127:IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
include/hw/ide/internal.h:653:IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
Fix the correct symbol dependency to avoid build failure when
deselecting some machines:
/usr/bin/ld: libcommon.fa.p/hw_ide_pci.c.o: in function `pci_ide_create_devs':
hw/ide/pci.c:491: undefined reference to `ide_create_drive'
Fixes: 8f01b41e10 ("ide: express dependencies with Kconfig")
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210515173716.358295-3-philmd@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
QEMU currently crashes when the user tries to do something like:
qemu-system-x86_64 -M x-remote -device piix3-ide
This happens because the "isabus" variable is not initialized with
the x-remote machine yet. Add a proper check for this condition
and propagate the error to the caller, so we can fail there gracefully.
Message-Id: <20210416125256.2039734-1-thuth@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Commit e50caf4a5c ("tracing: convert documentation to rST")
converted docs/devel/tracing.txt to docs/devel/tracing.rst.
We still have several references to the old file, so let's fix them
with the following command:
sed -i s/tracing.txt/tracing.rst/ $(git grep -l docs/devel/tracing.txt)
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210517151702.109066-2-sgarzare@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Many files include hw/sysbus.h without needing it. Remove the superfluous
include statements.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210327082804.2259480-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The Microdrive Compact Flash can be plugged on a PCMCIA bus.
Express the dependency using the 'depends on' Kconfig expression.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210424222057.3434459-3-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The 'ide-hd' and 'ide-cd' devices provide suitable alternatives.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The 'running' argument from VMChangeStateHandler does not require
other value than 0 / 1. Make it a plain boolean.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20210111152020.1422021-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
cmd_fis is mapped as DMA_DIRECTION_FROM_DEVICE, however, it is read
from, and not written to anywhere. Fix the DMA_DIRECTION and mark
cmd_fis as read-only in the code.
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20210119164051.89268-1-alxndr@bu.edu>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Currently, blk_is_read_only() tells whether a given BlockBackend can
only be used in read-only mode because its root node is read-only. Some
callers actually try to answer a slightly different question: Is the
BlockBackend configured to be writable, by taking write permissions on
the root node?
This can differ, for example, for CD-ROM devices which don't take write
permissions, but may be backed by a writable image file. scsi-cd allows
write requests to the drive if blk_is_read_only() returns false.
However, the write request will immediately run into an assertion
failure because the write permission is missing.
This patch introduces separate functions for both questions.
blk_supports_write_perm() answers the question whether the block
node/image file can support writable devices, whereas blk_is_writable()
tells whether the BlockBackend is currently configured to be writable.
All calls of blk_is_read_only() are converted to one of the two new
functions.
Fixes: https://bugs.launchpad.net/bugs/1906693
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210118123448.307825-2-kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
While processing ATAPI cmd_read/cmd_read_cd commands,
Logical Block Address (LBA) maybe invalid OR closer to the last block,
leading to an OOB access issues. Add range check to avoid it.
Fixes: CVE-2020-29443
Reported-by: Wenxiang Qian <leonwxqian@gmail.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-Id: <20210118115130.457044-1-ppandit@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is the result of running the timer-del-timer-free.cocci
script on the whole source tree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-4-peter.maydell@linaro.org
Move the property types and property macros implemented in
qdev-properties-system.c to a new qdev-properties-system.h
header.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20201211220529.2290218-16-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
A case was reported where s->io_buffer_index can be out of range.
The report skimped on the details but it seems to be triggered
by s->lba == -1 on the READ/READ CD paths (e.g. by sending an
ATAPI command with LBA = 0xFFFFFFFF). For now paper over it
with assertions. The first one ensures that there is no overflow
when incrementing s->io_buffer_index, the second checks for the
buffer overrun.
Note that the buffer overrun is only a read, so I am not sure
if the assertion failure is actually less harmful than the overrun.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20201201120926.56559-1-pbonzini@redhat.com
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.
This patch contains all the files, whose maintainer I could not get
from ‘get_maintainer.pl’ script.
Signed-off-by: Chetan Pant <chetan4windows@gmail.com>
Message-Id: <20201023124424.20177-1-chetan4windows@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Adapted exec.c and qdev-monitor.c to new location]
Signed-off-by: Thomas Huth <thuth@redhat.com>
This is to allow IDE disks to be unplugged when adding to QEMU via:
-drive file=/root/disk_file,if=none,id=ide-disk0,format=raw
-device ide-hd,drive=ide-disk0,bus=ide.0,unit=0
as the current code only works for disk added with:
-drive file=/root/disk_file,if=ide,index=0,media=disk,format=raw
Since the code already have the IDE controller as `dev`, we don't need
to use the legacy DriveInfo to find all the drive we want to unplug.
We can simply use `blk` from the controller, as it kind of was already
assume to be the same, by setting it to NULL.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: John Snow <jsnow@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20201027154058.495112-1-anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
The SRST protocol states that after diagnostics are complete and the
status is posted, we should clear the SRST bit if it should so happen to
be set.
The reset method itself should handle this, but just in case -- make our
intention explicit here.
Signed-off-by: John Snow <jsnow@redhat.com>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20201020200242.1497705-4-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
We don't need to wait for the falling edge. We can set BSY as
soon as possible and begin immediately resetting the drive. Devices
don't appear to need to take any specific action on the falling edge.
Signed-off-by: John Snow <jsnow@redhat.com>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20201020200242.1497705-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
Software reset (SRST) should cause the diagnostic command to be run. Make an
explicit call to that routine.
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20201020200242.1497705-2-jsnow@redhat.com
Fixes: 55adb3c456
Fixes: https://bugs.launchpad.net/bugs/1900155
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: John Snow <jsnow@redhat.com>
A recent change to weak reset handling broke replay due to the use of
aio_bh_schedule_oneshot instead of the replay aware
replay_bh_schedule_oneshot_event.
Fixes: 55adb3c456 ("ide: cancel pending callbacks on SRST")
Suggested-by: Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
Message-Id: <20201007160038.26953-4-alex.bennee@linaro.org>
The SRST implementation did not keep up with the rest of IDE; it is
possible to perform a weak reset on an IDE device to remove the BSY/DRQ
bits, and then issue writes to the control/device registers which can
cause chaos with the state machine.
Fix that by actually performing a real reset.
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Fixes: https://bugs.launchpad.net/qemu/+bug/1878253
Fixes: https://bugs.launchpad.net/qemu/+bug/1887303
Fixes: https://bugs.launchpad.net/qemu/+bug/1887309
Signed-off-by: John Snow <jsnow@redhat.com>
Not known to fix any bug, but I couldn't help but notice that ATA
specifies that writing to this register should clear an interrupt.
ATA7: Section 5.3.3 (Command register - Effect)
ATA6: Section 7.4.4 (Command register - Effect)
ATA5: Section 7.4.4 (Command register - Effect)
ATA4: Section 7.4.4 (Command register - Effect)
ATA3: Section 5.2.2 (Command register)
Other editions: try searching for the phrase "Writing this register".
Signed-off-by: John Snow <jsnow@redhat.com>
(In QEMU, we call this the "select" register.)
My memory isn't good enough to memorize what these magic runes
do. Label them to prevent mixups from happening in the future.
Side note: I assume it's safe to always set 0xA0 even though ATA2 claims
these bits are reserved, because ATA3 immediately reinstated that these
bits should be always on. ATA4 and subsequent specs only claim that the
fields are obsolete, so I assume it's safe to leave these set and that
it should work with the widest array of guests.
Signed-off-by: John Snow <jsnow@redhat.com>
Reorder these just a pinch to make them more obvious at a glance what
the addressing mode is.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
I have been staring at this FIXME for years and I never knew what it
meant. I finally stumbled across it!
When writing to the command registers, the old value is shifted into a
HOB copy of the register and the new value is written into the primary
register. When reading registers, the value retrieved is dependent on
the HOB bit in the CONTROL register.
By setting bit 7 (0x80) in CONTROL, any register read will, if it has
one, yield the HOB value for that register instead.
Our code has a problem: We were using bit 7 of the DEVICE register to
model this. We use bus->cmd roughly as the control register already, as
it stores the value from ide_ctrl_write.
Lastly, all command register writes reset the HOB, so fix that, too.
Signed-off-by: John Snow <jsnow@redhat.com>
In real ISA operation, register writes go out to an entire bus channel
and all listening devices receive the write. The devices do not toggle
the DEV bit based on their own configuration, nor does the HBA
intermediate or tamper with that value.
The reality of the matter is that DEV0/DEV1 accordingly will react to
command register writes based on whether or not the device was selected.
This does not fix a known bug, but it makes the code slightly simpler
and more obvious.
Signed-off-by: John Snow <jsnow@redhat.com>
It's the Control register, part of the Control block -- Command is
misleading here. Rename all related functions and constants.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
libFuzzer triggered the following assertion:
cat << EOF | qemu-system-i386 -M pc-q35-5.0 \
-nographic -monitor none -serial none -qtest stdio
outl 0xcf8 0x8000fa24
outl 0xcfc 0xe1068000
outl 0xcf8 0x8000fa04
outw 0xcfc 0x7
outl 0xcf8 0x8000fb20
write 0xe1068304 0x1 0x21
write 0xe1068318 0x1 0x21
write 0xe1068384 0x1 0x21
write 0xe1068398 0x2 0x21
EOF
qemu-system-i386: exec.c:3621: address_space_unmap: Assertion `mr != NULL' failed.
Aborted (core dumped)
This is because we don't check the return value from dma_memory_map()
which can return NULL, then we call dma_memory_unmap(NULL) which is
illegal. Fix by only unmap if the value is not NULL (and the size is
not the expected one).
Cc: qemu-stable@nongnu.org
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200718072854.7001-1-f4bug@amsat.org
Fixes: f6ad2e32f8 ("ahci: add ahci emulation")
BugLink: https://bugs.launchpad.net/qemu/+bug/1884693
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Make the type checking macro name consistent with the TYPE_*
constant.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200902224311.1321159-33-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Some typedefs and macros are defined after the type check macros.
This makes it difficult to automatically replace their
definitions with OBJECT_DECLARE_TYPE.
Patch generated using:
$ ./scripts/codeconverter/converter.py -i \
--pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]')
which will split "typdef struct { ... } TypedefName"
declarations.
Followed by:
$ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \
$(git grep -l '' -- '*.[ch]')
which will:
- move the typedefs and #defines above the type check macros
- add missing #include "qom/object.h" lines if necessary
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-9-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-10-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-11-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Move the ALLWINNER_AHCI macro close to the TYPE_ALLWINNER_AHCI
define.
This will make future conversion to OBJECT_DECLARE* easier.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Tested-By: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200825192110.3528606-33-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The TYPE_* constants and the typedefs are defined in ahci.h, so
we can move the type checking macros there too.
This will make future conversion to OBJECT_DECLARE* easier.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Tested-By: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200825192110.3528606-31-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
