The Linux syscalls underlying pread() and pwrite() take a 64 bit
offset on all architectures, even if some of them name the syscall
"pread/pwrite" rather than "pread64/pwrite64" for historical reasons.
So move the four QEMU target architectures (arm, i386, sparc,
unicore32) which were defining TARGET_NR_pread/pwrite to define
TARGET_NR_pread64/pwrite64 instead, and drop the TARGET_NR_pread/pwrite
implementation code completely.
(Based on examination of the kernel sources for the four architectures
this patch affects.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Use movcond for all sorts of conditional moves, ABS, CLAMPS, MIN/MAX
opcodes.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The Miscellaneous Special Registers Option provides zero to four scratch
registers within the processor readable and writable by RSR, WSR, and
XSR. These registers are privileged. They may be useful for some
application-specific exception and interrupt processing tasks in the
kernel. The MISC registers are undefined after reset.
See ISA, 4.7.3 for details.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
There are read-only (DEBUGCAUSE, PRID) and write-only (INTCLEAR) SRs,
and INTERRUPT/INTSET SR allows rsr/wsr, but not xsr. Raise illeagal
opcode exception on illegal access to these SRs.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Beginning with the RA-2004.1 release, SR access instructions (rsr, wsr,
xsr) are associated with their corresponding SR and raise illegal opcode
exception in case the register is not configured for the core.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
In XEA1, the Options for Memory Protection and Translation and the
corresponding TLB management instructions are not available. Instead,
functionality similar to the Region Protection Option is available
through the cache attribute register. See ISA, A.2.14 for details.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
ATOMCTL SR controls s32c1i opcode behavior depending on targeted memory
type. See ISA, 4.3.12.4 for details.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* 'master' of git.qemu-project.org:/pub/git/qemu:
target-mips: Fix incorrect shift for SHILO and SHILOV
target-mips: Fix incorrect code and test for INSV
xilinx_uartlite: Accept input after rx FIFO pop
xilinx_uartlite: suppress "cannot receive message"
xilinx_axienet: Implement R_IS behaviour
The external CPU models were removed on QEMU 1.2, and the support for
the "cpudef" config sections was documented as deprecated, but the
actual removal of the config section was pending.
Now that QEMU 1.3 was released, we can finally kill the support for
cpudef config sections, and support only the built-in CPU models from
target-i386/cpu.c.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Add a section to HACKING saying which version of the C spec
we use and describing the bits of implementation defined C
compiler behaviour which C code in QEMU is allowed to rely on.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
When older versions are found the internal pixman version is prefered.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
I removed the same sort of workaround for OpenBSD within the
configure script with commit 4dcc3f5876
but didn't bother to grep further to come across this same chunk
of code in the curses code itself. So the following diff removes
the same workaround chunk within the curses code.
Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
After allocating 32MB or more contiguous memory, huge pages
would seem to be ideal.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
helper_shilo has not been shifting an accumulator value correctly for negative
values in 'shift' field. Minor optimization for shift=0 case.
This change also adds tests that will trigger issue and check for regressions.
Signed-off-by: Petar Jovanovic <petarj@mips.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Content of register rs should be shifted for pos before applying a mask.
This change contains both fix for the instruction and to the existing test.
Signed-off-by: Petar Jovanovic <petarj@mips.com>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
The device return false from the can receive function when the FIFO is
full. This mean the device should check for buffered input whenever a byte is
popped from the FIFO.
Reported-by: Jason Wu <huanyu@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This message is not an error condition, its just informing the user that
the device is corking the uart traffic to not drop characters.
Reported-by: Jason Wu <huanyu@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
The interrupt status register R_IS is the standard clear-on-write behaviour.
This was unimplemented and defaulting to updating the register to the written
value. Implemented clear-on-write.
Reported-by: Jason Wu <huanyu@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Replace all register_ioport_*() with the new Memory API functions.
This permits to use the new Memory stuff like listeners.
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Replace all register_ioport_*() with portio_*() or a MemoryRegion.
This permits to use the new Memory stuff like listeners.
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Replace all register_ioport_*() with a MemoryRegion.
This permits to use the new Memory stuff like listeners.
For more flexibility, the IO address space is passed as an argument.
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto serial split]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Replace all register_ioport_*() with the new Memory API.
This permits to use the new Memory stuff like listeners.
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Replace all register_ioport_*() with a MemoryRegion.
This permits to use the new Memory stuff like listeners.
Moreover, the PCI device is added as an argument for apm_init(),
so we can register IO inside the PCI IO address space.
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr and q35]
Signed-off-by: Andreas Färber <afaerber@suse.de>
This function permits to retrieve ISA IO address space.
It will be usefull when we need to pass IO address space as argument.
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The e1000_receive function for the e1000 needs to discard packets longer than
1522 bytes if the SBP and LPE flags are disabled. The linux driver assumes
this behavior and allocates memory based on this assumption.
Signed-off-by: Michael Contreras <michael@inetric.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* kraxel/seabios-b1c35f2:
seabios: update binaries in pc-bios/
roms: also copy the dsdt when updating seabios.
seabios: update to b1c35f2b28cc0c94ebed8176ff61ac0e0b377798
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* kwolf/for-anthony:
coroutine-sigaltstack.c: Use stack_t, not struct sigaltstack
stream: fix ratelimit_set_speed
atapi: make change media detection for guests easier
Documentation: Update image format information
Documentation: Update block cache mode information
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* kraxel/usb.73:
ehci-sysbus: Attach DMA context.
usb: fail usbdevice_create() when there is no USB bus
usb: tag usb host adapters as not hotpluggable.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This reverts commit 456a84d156.
This patch wasn't submitted to the list and did not get Acked by other
copyright holders in the file.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This reverts commit 72bc6f1bf7.
This patch wasn't submitted to the list and did not get Acked by other
copyright holders in the file.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch updates the seabios submodule to commit
b1c35f2b28cc0c94ebed8176ff61ac0e0b377798.
Most important change is that seabios sets the busmaster bit
in the pci config space for the lsi and esp scsi host adapters.
Since commit 1c380f9460 qemu
is strict here and disallows any dma access when the bit is
clear.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The e801 memory sizes in the multiboot structures hard-code the available
low memory to 640. However, the value should not include the size of the
EBDA. Fill the value in the option ROM, getting the size of low memory
from the BIOS.
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
According to the bug 855162[0] - there's the need of adding new syscalls
to the whitelist when using Qemu with Libvirt.
[0] - https://bugzilla.redhat.com/show_bug.cgi?id=855162
Reported-by: Paul Moore <pmoore@redhat.com>
Tested-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eduardo Otubo <otubo@linux.vnet.ibm.com>
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Use the POSIX-specified stack_t type as the argument to sigaltstack()
rather than the legacy struct sigaltstack. This allows us to compile
on MacOSX with --with-coroutine=sigaltstack.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The formula to compute slice_quota was wrong since commit 6ef228fc.
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
