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path: root/hw/pci_host.c
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2012-08-22pci_host: Turn into SysBus-derived QOM typeAndreas Färber
The preceding commits fixed misuses of FROM_SYSBUS() that led people to add a bogus busdev field. For qdev the field order was less relevant but for QOM the PCIHostState field (including the SysBusDevice actually initialized with a value) must be placed first within the state struct. To facilitate accessing the PCIHostState fields, derive all PCI host bridges from TYPE_PCI_HOST_BRIDGE rather than TYPE_SYS_BUS_DEVICE. We can now access PCIHostState QOM-style, with PCI_HOST_BRIDGE() macro. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-04-15pci: fix corrupted pci conf index register by unaligned writeAvi Kivity
Commit d0ed8076cbdc261 converted the PCI config access to the memory API, but also inadvertantly changed it to accept unaligned writes, and corrupt the index register in the process. This causes a regression booting NetBSD. Fix by ignoring unaligned or non-dword writes. https://bugs.launchpad.net/qemu/+bug/897771 Reported-by: Andreas Gustafsson <gson@gson.org> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-09-04pci_host: convert conf index and data ports to memory APIAvi Kivity
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-08-25Revert "Merge remote-tracking branch 'qemu-kvm/memory/batch' into staging"Anthony Liguori
This reverts commit 8ef9ea85a2cc1007eaefa53e6871f1f83bcef22d, reversing changes made to 444dc48298c480e42e15a8fe676be737d8a6b2a1. From Avi: Please revert the entire pull (git revert 8ef9ea85a2cc1) while I work this out - it isn't trivial. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-24pci_host: convert conf index and data ports to memory APIAvi Kivity
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-27pci: Common overflow preventionJan Kiszka
Introduce pci_config_read/write_common helpers to prevent passing accesses down the callback chain that go beyond the config space limits. Adjust length assertions as they are no longer correct (cutting may generate valid 3 byte accesses). Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-03-28pci: use devfn for pci_find_device() instead of (slot, fn) pairIsaku Yamahata
(slot, fn) pair is somewhat confusing because of ARI. So use devfn for pci_find_device() instead of (slot, fn). Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-11Add get_fw_dev_path callback for system bus.Gleb Natapov
Prints out mmio or pio used to access child device. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-11pci-host: Delegate bswap to mmio layerAlexander Graf
The only reason we have bswap versions of the pci host code is that most pci host devices are little endian. The ppc e500 is the only odd one here, being big endian. So let's directly pass the endianness down to the mmio layer and not worry about it on the pci host layer. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-11Make simple io mem handler endian awareAlexander Graf
As an alternative to the 3 individual handlers, there is also a simplified io mem hook function. To be consistent, let's add an endianness parameter there too. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-23pci_host: fix breakageAurelien Jarno
This has been broken by commit 952760bb7bce7fbfe0afcf04fee268745f297b87 Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-21Compile pci_host only onceBlue Swirl
Convert pci_host_conf_register_mmio_noswap(x) to pci_host_conf_register_mmio(x, 0). Convert pci_host_conf_register_mmio(x) to pci_host_conf_register_mmio(x, 1) for big endian hosts, all cases happen to be BE. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-07Update to a hopefully more future proof FSF addressBlue Swirl
See also 8167ee883931cb20c6264fc19d040ce2dc6ceaaa, 530e7615ce3c01882e582c84dc6304ab98a3d5c5 and fad6cb1a565bb73f83fc0e2654489457b489e436. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-14pci_host: rewrite using rwhandlerMichael S. Tsirkin
Save a ton of code by switching pcihost to use rwhandler. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-01-10PCI: Fix a typoBlue Swirl
Fixes build with PCI_DEBUG defined. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-12-01pci_host: remove unnecessary & 0xff.Isaku Yamahata
This patch removes unnecessary & 0xff in pci_dev_find_by_addr(). Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2009-12-01pci: shorten pci_host_{conf, data}_register_xxx function a bit.Isaku Yamahata
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: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2009-12-01pci: rename (pci_/pcie_mmcfg_)addr_to_devIsaku Yamahata
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: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2009-12-01pci: remove pci_addr_to_config() by open codeIsaku Yamahata
This patch removes pci_addr_to_config() and open code it as suggested by Michael S. Tsirkin <mst@redhat.com>. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2009-12-01pci: simplify (pci_/pcie_mmcfg_)data_read()Michael S. Tsirkin
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: Michael S. Tsirkin <mst@redhat.com> Acked-by: Isaku Yamahata <yamahata@valinux.co.jp>
2009-11-09pci_host: change the signature of pci_data_{read, write}.Isaku Yamahata
change the first argument, void *opaque to PCIBus *s of the pci_data_{read, write}. They aren't used as direct callback so the argument type don't have to be void*. So change it to the right type. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09pci: move pci host stuff from pci.c to pci_host.cIsaku Yamahata
Move pci host stuff from pci.c to pci_host.c. And add some comments. Later pcie host bridge functions will be defined in pcie_host.c not to bloat pci.c. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09pci_host: consolidate pci config address access.Isaku Yamahata
consolidate pci_config address access into pci_host.c Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09pci_host.h: move functions in pci_host.h into .c file.Isaku Yamahata
split static functions in pci_host.h into pci_host.c and pci_host_template.h. Later a structures declared in pci_host.h, PCIHostState, will be used. However pci_host.h doesn't allow to include itself easily. This patches addresses it. pci_host.h includes functions which are instantiated in .c by including pci_host.h with typedefing pci_addr_t. pci_addr_t is per pci host bridge and is typedef'ed to uint32_t for ioio or target_phys_addr_t for mmio in .c file. That prevents from including pci_host.h to use PCIHostState because of requiring type, pci_addr_t. Its purpose to include is to instantiate io function for mmio or ioio depending on which pci host bridge requires ioio or mmio. To avoid including code, we always instantiate both version. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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