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path: root/hw/pci.c
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2011-09-25pci: add pci_address_space_io()Richard Henderson1-0/+5
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>
2011-09-19pci: implement bridge filteringMichael S. Tsirkin1-68/+2
Support bridge filtering on top of the memory API as suggested by Avi Kivity: Create a memory region for the bridge's address space. This region is not directly added to system_memory or its descendants. Devices under the bridge see this region as its pci_address_space(). The region is as large as the entire address space - it does not take into account any windows. For each of the three windows (pref, non-pref, vga), create an alias with the appropriate start and size. Map the alias into the bridge's parent's pci_address_space(), as subregions. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-09-19pci: Remove unused pci_reserve_capabilityJan Kiszka1-6/+0
eepro100 was the last user. Now pci_add_capability is powerful enough. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-09-10PCI: delete unused mem_base and pci_to_cpu_addrBlue Swirl1-13/+1
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-24pci: Error on PCI capability collisionsJan Kiszka1-0/+38
Nothing good can happen when we overlap capabilities. This may happen when plugging in assigned devices or when devices models contain bugs. Detect the overlap and report it. Based on qemu-kvm commit by Alex Williamson. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Acked-by: Don Dutile <ddutile@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-08-22pci: add pci_address_space()Avi Kivity1-0/+5
Returns the PCI address space. Useful for bridges that can obscure part of the PCI address space. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori1-23/+23
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: remove support for pre memory API BARsAvi Kivity1-31/+2
Not used anymore. Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: rename pci_register_bar_region() to pci_register_bar()Avi Kivity1-3/+3
Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: fold BAR mapping function into its callerAvi Kivity1-16/+9
There is only one function, so no need for a function pointer. Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: remove pci_register_bar()Avi Kivity1-25/+17
Superceded by pci_register_bar_region(). The implementations are folded together. Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: convert pci rom to memory APIAvi Kivity1-13/+7
Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: remove pci_register_bar_simple()Avi Kivity1-17/+0
Superceded by pci_register_bar_region(). Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: allow I/O BARs to be registered with pci_register_bar_region()Avi Kivity1-20/+23
Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: pass I/O address space to new PCI busAvi Kivity1-6/+12
This lets us register BARs in the I/O address space. Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08pci: add API to get a BAR's mapped addressAvi Kivity1-0/+5
Some (hacky) devices that have a back-channel to read this address back outside the normal configuration mechanisms, such as VMware svga. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-04Merge remote-tracking branch 'mst/for_anthony' into stagingAnthony Liguori1-4/+2
2011-07-29pci: add MemoryRegion based BAR management APIAvi Kivity1-8/+39
Allow registering a BAR using a MemoryRegion. Once all users are converted, pci_register_bar() and pci_register_bar_simple() will be removed. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-29pci: pass address space to pci bus when createdAvi Kivity1-5/+11
This is now done sloppily, via get_system_memory(). Eventually callers will be converted to stop using that. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-27pci: Common overflow preventionJan Kiszka1-4/+2
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>
2011-06-15pci: don't call qdev pci init methodIsaku Yamahata1-4/+6
As pci id initialization is moved to common layer, some initialization function can be empty. So don't call init method if NULL. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-06-15Merge remote-tracking branch 'origin/master' into pciMichael S. Tsirkin1-3/+5
Conflicts: hw/virtio-pci.c
2011-06-12pci: move ids of config space into PCIDeviceInfoIsaku Yamahata1-14/+32
vender id/device id... in configuration space are read-only registers which are commonly defined for all pci devices. So move those initialization into common place. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-05-12Merge remote-tracking branch 'stefanha/trivial-patches' into stagingAnthony Liguori1-3/+3
Conflicts: cpu-all.h
2011-05-08pci: Use of qemu_put_ram_ptr in pci_add_option_rom.John Baboval1-0/+2
Prevent a deadlock caused by leaving a map cache bucket locked by the preceding qemu_get_ram_ptr() call. Signed-off-By: John Baboval <john.baboval@virtualcomputer.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-05-06Fix typo in code and commentsStefan Weil1-3/+3
Replace writeable -> writable Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-05-05pci: Add class 0x403 as 'audio controller'Jan Kiszka1-0/+1
Used by HD audio controllers like our intel-hda. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-04-07pci: add pci_register_bar_simple() APIAvi Kivity1-0/+17
This is similar to pci_register_bar(), but automatically registers a single memory region spanning the entire BAR. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-04-01pci: add accessor function to get irq levelsIsaku Yamahata1-0/+7
Introduce accessor function to know INTx levels. It will be used later by q35. Although piix_pci tracks the intx line levels, it can be eliminated by this helper function. Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-03-28pci: use uint8_t for devfn_minIsaku Yamahata1-3/+3
use uint8_t for devfn_min instead of int. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-03-28pci: use PCI_DEVFN in pci_get_bus_devfn()Isaku Yamahata1-1/+1
Replace hardcoded logic by a common macro. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-03-28pci: use devfn for pci_find_device() instead of (slot, fn) pairIsaku Yamahata1-2/+2
(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>
2011-02-20pci: Fix memory leakStefan Weil1-0/+1
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-12pci: add creation functions that may failBlue Swirl1-0/+20
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-27pci: typo in pcibus_get_dev_path()Isaku Yamahata1-1/+1
This patch fixes typo in pcibus_get_dev_path(). Without this patch, the result of pcibus_get_dev_path() isn't unique. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-01-27pci: bridge control fixupMichael S. Tsirkin1-1/+0
PCI_BRIDGE_CTL_DISCARD_STATUS (bit 10 in bridge control register) is W1C so we should not make it writeable, otherwise the assert(!(wmask & w1cmask)) in pci_default_write_config() is hit Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reported-by: Isaku Yamahata <yamahata@valinux.co.jp> Tested-by: Isaku Yamahata <yamahata@valinux.co.jp>
2011-01-24pci: memory leak of PCIDevice::rom_fileIsaku Yamahata1-0/+1
PCIDevice::rom_file is leaked. PCIDevice::rom_file is allocated in pci_qdev_init(), but not freed anywhere. free it in qemu_unregister_device(). Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-01-20pci: use qemu_malloc() in pcibus_get_dev_path()Isaku Yamahata1-1/+1
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>
2011-01-20pci: deassert intx on reset.Isaku Yamahata1-0/+9
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>
2011-01-19pci: fix device pathsMichael S. Tsirkin1-4/+12
Patch a6a7005d14b3c32d4864a718fb1cb19c789f58a5 generated broken device paths. We snprintf with a length shorter than the output, so the last character is discarded and replaced by the null byte. Fix it up by snprintf to a buffer which is larger by 1 byte and then memcpy the data (without the null byte) to where we need it. Reported-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-01-10pci: allow devices being tagged as not hotpluggable.Gerd Hoffmann1-0/+10
This patch adds a field to PCIDeviceInfo to tag devices as being not hotpluggable. Any attempt to plug-in or -out such a device will throw an error. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-27pci: fix migration path for devices behind bridgesMichael S. Tsirkin1-11/+37
The device path used for migration is currently broken for for all devices behind a nested bridge. Replace this by a hierarchical list of slot/function numbers, walking the path from root down to device. Add :00 after the domain number so that if there are no nested bridges, this is compatible with what we have now. Note: as pointed out by Gleb, using openfirmware paths might be cleaner, doing this would break compatibility though, and the IDs used are not guest or user visible at all, so breaking the compatibility is probably not worth it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-24pci: introduce a helper function to convert qdev id to PCIDeviceIsaku Yamahata1-0/+35
This patch introduce a helper function to get PCIDevice from qdev id. This function will be used later. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-22pcie: add flr supportIsaku Yamahata1-1/+5
Support flr: trigger device reset on flr config write. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-19pci: don't use bus number in migration, stub outMichael S. Tsirkin1-1/+4
Using bus numbers in migration is clearly wrong as they are guest assigned. Not really sure what the right thing to do is, for now stick 0 in there so things keep working for non-nested setups, add a TODO. We also probably have to mark nested bridges as non-migrateable until this is fixed? Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Alex Williamson <alex.williamson@redhat.com>
2010-12-17Merge remote branch 'mst/for_anthony' into stagingAnthony Liguori1-19/+5
2010-12-11Add bootindex for option roms.Gleb Natapov1-1/+1
Extend -option-rom command to have additional parameter ,bootindex=. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-11Add get_fw_dev_path callback for pci bus.Gleb Natapov1-23/+85
Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-09pci: untangle pci/msi dependencyMichael S. Tsirkin1-19/+0
msi depends on pci but pci should not depend on msi. The only dependency we have is a recent addition of pci_msi_ functions, IMO they add little enough to open-code in the small number of users. Follow-up patches add more cleanups. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
2010-12-09pci: make command SERR bit writableIsaku Yamahata1-0/+5
pcie aer needs SERR bit to be writable, and the PCI spec requires this as well. For compatibility, introduce compat global property command_serr_enable and make this bit readonly for a pre 0.14 pc machine. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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