PCI spec states:
if a masked vector has its Pending bit set, and the associated
underlying interrupt events are somehow satisfied (usually by software
though the exact manner is function-specific), the function must clear
the Pending bit, to avoid sending a spurious interrupt message later
when software unmasks the vector.

In our case this happens if vector becomes unused.
Clear pending bit in this case.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

On reset, we currently clear all bits in msix control register *except*
enable bit.  This is wrong: the spec says we should clear writeable
bits: function mask and enable bit.
Correct this.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

PCI spec states that mask bit must be 1 after reset.
Make it so.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

msix state is managed by OS, not the
driver, so it's wrong to touch it
on io from driver.
Mark all vectors unused instead.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

will be used by virtio on soft reset
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

goto into scope is evil. rearrange pci_bridge_filter
so that we always go to end of function on error.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Acked-by: NIsaku Yamahata <yamahata@valinux.co.jp>

- fix bridge prefetchable memory accesser to check 64bit or not.
- use pcibus_t consistently instead mixing pcibus_t and uint64_t.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

fix typo in pci_config_get_io_base().
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch replaces magic number, 256, with ARRAY_SIZE().
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

Split bar address math into a separate function.
In particular, this gets rid of an ugly forward goto
into scope that we have there.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Acked-by: NIsaku Yamahata <yamahata@valinux.co.jp>

This patch converts r->size == 0 to !r_size.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch removes unused constants committed by
fb231628.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch moves two typedefs, PCIHostState and PCIExpressHost to
qemu-common.h for consistency as PCIBus and PCIDevice are typedefed
in qemu-common.h.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch removes some comment which should go into commit log
in pci.h.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch replaces for loop by memset in pci_init_wmask().
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

including pci_host.h isn't needed by pci.c.
This patch kills it.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch removes unnecessary & 0xff in pci_dev_find_by_addr().
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch renames pci_find_host_bus() to pci_find_root_bus()
as suggested by "Michael S. Tsirkin" <mst@redhat.com>.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

Because pci_sub_bus() is used only once so eliminate it
by open coding as suggested by "Michael S. Tsirkin" <mst@redhat.com>.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

pci_host_data_register_io_memory and its variants are too long a bit.
So shorten them. Now they are
pci_host_{conf, data}_register_{mmio, mmio_noswap, ioport}()
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch renames pci_addr_to_dev(), pcie_mmcfg_addr_to_dev()
to pci_dev_find_by_addr(), pcie_dev_find_by_mmcfg_addr()
as "Michael S. Tsirkin" <mst@redhat.com> suggested.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch removes pci_addr_to_config() and open code it
as suggested by Michael S. Tsirkin <mst@redhat.com>.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

Remove switch on length: we don't care about
high bits for value, so just return all ones
if no device.  And add one assert().
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Acked-by: NIsaku Yamahata <yamahata@valinux.co.jp>

Now pci host stuff has been moved from pci.[hc] to pci_host.[hc]
so the declaration of pci_data_{read, write}() should be in
pci_host.h
This patch moves them from pci.h to pci_host.h for consistency.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

It printed wrong limit value of bridge.
This patch fixes it.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

pci.h declares some functions which aren't
defined in pci.h. Clean up moving things
to appropriate headers, and update all users.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This causes ctrl+alt+u or ctrl+alt+f to not work when windows hasn't been
resized first. Other graphic emulators do resize the screen on
hw_invalidate.

This reverts commit 0bd8246b.

Add ARM Realview I2C host emulation.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Reqrite bitbanging I2C implementation.  New code improves stop/start
condition handling, and gives more accurate input line level.

Introduce intermediate abstraction layer for I2C bitbanging that
is not connected via a GPIO port.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Implement MAXIM SD1338 RTC+NVRAM.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Combine multiple BCD implementations.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Implement ARM RealView PBX-A9 board support.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

It was never enabled in any of the public builds anyway.

Noticed by Steve Grubb.
Signed-off-by: Nmalc <av1474@comtv.ru>

We already have a working multiboot implementation that uses fw_cfg to get
its kernel module etc. data in int19 runtime now.

So what's missing is a working linux boot option rom. While at it I figured it
would be a good idea to take the opcode generator out of pc.c and instead use
a proper option rom, like we do with multiboot.

So here it is - an fw_cfg using option rom for -kernel with linux!
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Right now we load the guest kernel to RAM, fire off the BIOS, hope it
doesn't clobber memory and run an option rom that jumps into the kernel.

That breaks with SeaBIOS, as that clears memory. So let's read all
kernel, module etc. data using the fw_cfg interface when in the int19
handler.

This patch implements said mechanism for multiboot.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

We have several rom helpers currently, but none of them can get us
code that spans several roms into a pointer.

This patch introduces a function that copies over rom contents.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This patch introduces block migration called during live migration. Block
are being copied to the destination in an async way. First the code will
transfer the whole disk and then transfer all dirty blocks accumulted during
the migration.
Still need to improve transition from the iterative phase of migration to the
end phase. For now transition will take place when all blocks transfered once,
all the dirty blocks will be transfered during the end phase (guest is
suspended).

Changes from v4:
- Global variabels moved to a global state structure allocated dynamically.
- Minor coding style issues.
- Poll block.c for tracking of dirty blocks instead of manage it here.
Signed-off-by: NLiran Schour <lirans@il.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This function sends out the OPENED event to backends that
have drive the chardevs. The 'reset' is now a historical
artifact and we can now just call the function for what it
is.
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Add ARM Realview PB-A8 board support.
Signed-off-by: NPaul Brook <paul@codesourcery.com>