The len and is_write arguments to cpu_physical_memory_unmap() were
swapped. This patch changes calls to use the correct argument ordering.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Raise a config change interrupt when the size changed. This allows
virtio-blk guest drivers to read-read the information from the
config space once it got the config chaged interrupt.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Extend the change_cb callback with a reason argument, and use it
to tell drivers about size changes.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
r3480 added this check to account for the entry vector 0xfff00100 to be
available for CPUs that need it. Today however, the NIP is not yet
initialized at this point (zero), so the check always triggers.
Moreover, BIOS size check is already done previously, so this part can
be removed too.
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
For some unknown reason, the MIPS kernel briefly changes the RTC to
binary mode during boot, switch back to BCD mode and read the time. As
the registers are updated only every second, they may still be in the
old format when they are read.
This patch forces a register update immediately after a format change
(BCD/binary or 12/24H). This avoid long fsck during boot due to time
wrap.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
virtio-blk doesn't work on cross-endian configuration, as endianness is
not handled correctly.
This patch adds missing endianness conversions to make virtio-blk
working. Tested on the following configurations:
- i386 guest on x86_64 host
- ppc guest on x86_64 host
- i386 guest on mips host
- ppc guest on mips host
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
virtio-net used to work on cross-endianness configurations, but doesn't
anymore with recent guest kernels, as the new features don't handle
endianness correctly.
This patch fixes wrong conversion, and add missing ones to make
virtio-net working. Tested on the following configurations:
- i386 guest on x86_64 host
- ppc guest on x86_64 host
- i386 guest on mips host
- ppc guest on mips host
Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Recent PowerPC kernel end up in kernel panic during boot in -nographic
mode. In this mode the second serial port is used as the udbg console,
and thus a few characters are sent on this port. This activates the
tx interrupt flag, and later choke the Linux kernel, as it was not
expecting such a flag to be set.
The problem here comes from the fact that contrary to most devices the
interrupt flags are only set if the interrupt is enabled. Quoting the
datasheet: "If the corresponding IE bit is not set, the IP for that
source of interrupt will never be set."
This patch fixes that by enabling the interrupt flag only when the
corresponding interrupt is enabled.
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
As noted by Markus Armbruster pxa2xx_gpio vmstate version bumped
because of a change in the or .ilevel / .olevel arrays are saved,
for convenience.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Switch sl-nand emulation to use qdev and vmstate. Also drop ecc_get/_put
functions as sl-nand was the only user of that code.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Convert SharpSL scoop device to qdev, remove lots of supporting code, as
lot of init and gpio related things can now be done automagically.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Leon3 is an open-source VHDL System-On-Chip, well known in space industry (more
information on http://www.gaisler.com).
Leon3 is made of multiple components available in the GrLib VHDL library.
Three devices are implemented: uart, timers and IRQ manager.
You can find code for these peripherals in the grlib_* files.
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This device exposes one parameter:
- chardev (ptr) : Pointer to a qemu character device
Emulation of GrLib devices is base on the GRLIB IP Core User's Manual:
http://www.gaisler.com/products/grlib/grip.pdf
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This device exposes two parameters:
- set_pil_in (ptr) : A function to set the pil_in of the SPARC CPU
- set_pil_in_opaque (ptr) : Opaque argument of the set_pil_in function
Emulation of GrLib devices is base on the GRLIB IP Core User's Manual:
http://www.gaisler.com/products/grlib/grip.pdf
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This device exposes three parameters:
- frequency (uint32) : The system frequency
- irq-line (uint32) : IRQ line number for the first timer
(others use irq-line + 1, irq-line + 2...)
- nr-timers (uint32) : Number of timers
Emulation of GrLib devices is base on the GRLIB IP Core User's Manual:
http://www.gaisler.com/products/grlib/grip.pdf
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
USB Mass Storage Devices sometimes have the RMB (removable) bit set in
the SCSI INQUIRY response. Thumbdrives tend to have the bit set whereas
hard disks do not.
Operating systems differentiate between removable devices and fixed
devices. Under Linux, the anaconda installer looks for removable
devices. Under Windows, only fixed devices may have more than one
partition and AutoRun is also affected by the removable bit.
For these reasons, allow USB Mass Storage Devices to override the
removable bit:
qemu -usb
-drive if=none,file=test.img,cache=none,id=disk0
-device usb-storage,drive=disk0,removable=on
The default is off.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
scsi-disk devices may wish to override the removable bit. Add support
for a qdev property on SCSI devices. This is will be used by usb-msd.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Provide the "removable" qdev property bit to override the SCSI INQUIRY
removable (RMB) bit for non-CDROM devices. This will be used by USB
Mass Storage Devices, which sometimes have this guest-visible bit set
and sometimes do not. They therefore requires a means for user
configuration.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
With bm == NULL, other code in the same function would crash.
This bug was reported by cppcheck:
hw/ide/pci.c:280: error: Possible null pointer dereference: bm
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Merge ide_dma_submit_check into it's only caller. Also use tail recursion
using a goto instead of a real recursion - this avoid overflowing the
stack in the pathological situation of an recurring error that is ignored.
We'll still be busy looping in ide_dma_cb, but at least won't eat up
all stack space after this.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Currenly the code only resets the io_buffer_index field for reads,
but the code seems to expect this for all types of I/O. I guess
we simply don't hit large enough transfers that would require this
often enough.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Factor the DMA I/O path that is duplicated between read and write
commands, into common helpers using the s->is_read flag added for
the macio ATA controller.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The upper memory size field should exclude the first MB of RAM.
Signed-off-by: Kevin Wolf <mail@kevin-wolf.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Due to signed/unsigned comparison, the dirty bits are never reset, and
the screen redrawn each time. Fix that by only using ram_addr_t types,
and looking for page_min != addr_max instead.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
isa_mem_base is computed from registers during reset, but due to QEMU
limitations some devices (e.g. VGA card) need to know it earlier when
they are registered.
Workaround this by setting the value during registration instead of
reset.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
The PL190 implementation keeps the default vector address
in vect_addr[16], but we weren't using this for writes to
the DEFVECTADDR register. As a result of this fix the
default_addr structure member is unused and we can delete it.
Reported-by: Himanshu Chauhan <hschauhan@nulltrace.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
use qemu_malloc() instead of direct use of malloc().
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
deassert intx on device reset.
So far pci_device_reset() is used for system reset.
In that case, interrupt controller is reset at the same time so that
all irq is are deasserted.
But now pci bus reset/flr is supported, and in that case irq needs to be
disabled explicitly.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Recently PXA2xx lcd have stopped to be updated incrementally (picture
frozen). This patch fixes that by passing non min/max x/y, but rather
(correctly) x/y and w/h.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
vmstate_pxa2xx_i2c incorrectly recursed to itself instead of going
to store slave device. Fix that stop stop qemu from segfaulting
during savevm for pxa2xx-based devices.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Second instance of scoop contains registers shifted to 0x40 from the start
of the page. Instead of messing with register mapping, just limit register
address to 0x00..0x3f.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Mainstone board has two flash chips (emulated by two ram regions), however
currently code tries to allocate them with the same name, which fails.
Fix that to make mainstone emulation work again.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
