This patch converts mpic to the new memory API (through old mmio).
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Remove the get_system_memory() call from serial_mm_init, pushing
it back into the callers. In many cases we already have the
system memory region available.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
The use of DEVICE_NATIVE_ENDIAN cleans up lots of ifdefs in
many of the callers.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
We are mapping ESCC to a static (incorrect) address on machine init. This
overlaps with our vram, rendering the screen barely usable.
Since openBIOS is clever enough to map ESCC to where it needs to be, we can
just drop that invalid map and everyone's happy.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Missed during memory region conversion: The i8259 now depends on the ISA
bus being created first. Reorder the initialization.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This requires some amount of hoop-jumping, so that we don't
inadvertently claim port 0x3f6, which is used by ISA IDE.
The sysbus initialization path is as yet unconverted.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
Slightly non-obvious with mips_jazz passing in the region
structure to populate.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
The only non-obvious part is pic_poll_read which used
"addr1 >> 7" to detect whether one referred to either
the master or slave PIC. Instead, test this directly.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
i8259 is an ISA device (or at least, depends on the ISA infrastructure to
register its ioport); and the ISA bus is supplied by piix4. Later patches
make this dependency explicit.
Use qemu_irq_proxy() to stop the cycle by adding an extra layer of
indirection.
Signed-off-by: Avi Kivity <avi@redhat.com>
In particular, the i8259 was being initialized before the ISA bus,
leading to a crash.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
To replace isa_init_ioport and isa_init_ioport_range
as the ISA devices are converted to the memory api.
[avi: use memory_region_size()]
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
Not used yet, but at least we're provided with the correct region.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
Returns the I/O address space. Useful for implementing
PCI-ISA bridge devices.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
In some cases we have a circular dependency involving irqs - the irq
controller depends on a bus, which in turn depends on the irq controller.
Add qemu_irq_proxy() which acts as a passthrough, except that the target
irq may be set later on.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The virtio code uses wmb() macros in several places, as required by the
SMP-aware virtio protocol. However the wmb() macro is locally defined
to be a compiler barrier only. This is probably sufficient on x86
due to its strong storage ordering model, but it certainly isn't on other
platforms, such as ppc.
In any case, qemu already has some globally defined memory barrier macros
in qemu-barrier.h. This patch, therefore converts virtio.c to use those
barrier macros. The macros in qemu-barrier.h are also wrong (or at least,
safe for x86 only) but this way at least there's only one place to fix
them.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Need to check that guest slot/device number is not > 31 or walk off
the devfn table when checking if a devfn is available or not in a guest.
before this fix, passing in an addr=abc or addr=34,
can crash qemu, sometimes fail gracefully if data past end
of devfn table fails the availability test.
with this fix, get clean error:
Property 'pci-assign.addr' doesn't take value '34'
also tested when no addr= param passed for guest (pcicfg) address,
and that worked as well.
Signed-off-by: Don Dutile <ddutile@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Do not try to map against the PCI bar in the ISA version of the device.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
