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path: root/hw/pci.h
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2012-02-24Merge remote-tracking branch 'bonzini/virtio-scsi' into stagingAnthony Liguori1-0/+1
* bonzini/virtio-scsi: scsi-block: always use scsi_generic_ops for cache != none scsi: fix searching for an empty id scsi: fix wrong return for target INQUIRY virtio-scsi: add migration support virtio-scsi: process control queue requests virtio-scsi: add basic SCSI bus operation virtio-scsi: Add basic request processing infrastructure virtio-scsi: Add virtio-scsi stub device scsi-disk: add migration support scsi-generic: add migration support scsi: add SCSIDevice vmstate definitions scsi-disk: enable scatter/gather functionality scsi: add scatter/gather functionality scsi: pass residual amount to command_complete ahci: use new DMA helpers dma-helpers: add accounting wrappers dma-helpers: add dma_buf_read and dma_buf_write dma-helpers: make QEMUSGList target independent
2012-02-22pci: add accessors to get/set registers by maskMichael S. Tsirkin1-0/+61
pci_regs.h specifies many registers by mask + shifted register values. There's always some duplication when using such: for example to override device type, we would need: pci_word_test_and_clear_mask(cap + PCI_EXP_FLAGS, PCI_EXP_FLAGS_TYPE); pci_word_test_and_set_mask(cap + PCI_EXP_FLAGS, PCI_EXP_TYPE_ENDPOINT << (ffs(PCI_EXP_FLAGS_TYPE) - 1)); Getting such registers also uses some duplication: word = pci_get_word(cap + PCI_EXP_FLAGS) & PCI_EXP_FLAGS_TYPE; if ((word >> ffs((PCI_EXP_FLAGS_TYPE) - 1)) == PCI_EXP_TYPE_ENDPOINT) Add API to access such registers in one line: pci_set_word_by_mask(cap + PCI_EXP_FLAGS, PCI_EXP_FLAGS_TYPE, PCI_EXP_TYPE_ENDPOINT) and word = pci_get_word_by_mask(cap + PCI_EXP_FLAGS, PCI_EXP_FLAGS_TYPE) if (word == PCI_EXP_TYPE_ENDPOINT) Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-22virtio-scsi: Add virtio-scsi stub deviceStefan Hajnoczi1-0/+1
Add a useless virtio SCSI HBA device: qemu -device virtio-scsi-pci Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-02-03qdev: register all types natively through QEMU Object ModelAnthony Liguori1-2/+0
This was done in a mostly automated fashion. I did it in three steps and then rebased it into a single step which avoids repeatedly touching every file in the tree. The first step was a sed-based addition of the parent type to the subclass registration functions. The second step was another sed-based removal of subclass registration functions while also adding virtual functions from the base class into a class_init function as appropriate. Finally, a python script was used to convert the DeviceInfo structures and qdev_register_subclass functions to TypeInfo structures, class_init functions, and type_register_static calls. We are almost fully converted to QOM after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27pci: convert to QEMU Object ModelAnthony Liguori1-39/+41
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-22vga: improve VGA logicBlue Swirl1-4/+0
Improve VGA selection logic, push check for device availabilty to vl.c. Create the devices at board level unconditionally. Remove now unused pci_try_create*() functions. Make PCI VGA devices optional. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-13vmstate: extract declarations out of hw/hw.hPaolo Bonzini1-0/+18
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-21msix: track function masked in pci device stateMichael S. Tsirkin1-0/+2
Only go over the table when function is masked. This is not really important for qemu.git but helps fix a bug in qemu-kvm.git. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-01Add stub functions for PCI device models to do PCI DMADavid Gibson1-0/+67
This patch adds functions to pci.[ch] to perform PCI DMA operations. At present, these are just stubs which perform directly cpu physical memory accesses. Stubs are included which are analogous to cpu_physical_memory_{read,write}(), the stX_phys() and ldX_phys() functions and cpu_physical_memory_{map,unmap}(). In addition, a wrapper around qemu_sglist_init() is provided, which also takes a PCIDevice *. It's assumed that _init() is the only sglist function which will need wrapping, the idea being that once we have IOMMU support whatever IOMMU context handle the wrapper derives from the PCI device will be stored within the sglist structure for later use. Using these stubs, however, distinguishes PCI device DMA transactions from other accesses to physical memory, which will allow PCI IOMMU support to be added in one place, rather than updating every PCI driver at that time. That is, it allows us to update individual PCI drivers to support an IOMMU without having yet determined the details of how the IOMMU emulation will operate. This will let us remove the most bitrot-sensitive part of an IOMMU patch in advance. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-27qapi: Convert query-pciLuiz Capitulino1-4/+0
This also fixes a bug with the old version: QMP would invert device id and vendor id. This would look ok on HMP because it was printing "device:vendor" instead of "vendor:device". Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-09-25pci: add pci_address_space_io()Richard Henderson1-0/+1
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. Tsirkin1-2/+0
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 Kiszka1-2/+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 Swirl1-2/+0
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-22pci: add pci_address_space()Avi Kivity1-0/+1
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>
2011-08-08pci: rename pci_register_bar_region() to pci_register_bar()Avi Kivity1-2/+2
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 Kivity1-1/+0
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 Kivity1-3/+0
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 Kivity1-1/+2
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 Kivity1-3/+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>
2011-08-08msix: convert to memory APIAvi Kivity1-1/+1
The msix table is defined as a subregion, to allow for a BAR that mixes device specific regions with the msix table. 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 Kivity1-0/+1
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 Kivity1-3/+7
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/+1
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>
2011-07-29pci: add MemoryRegion based BAR management APIAvi Kivity1-0/+3
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 Kivity1-3/+9
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>
2011-06-15Merge remote-tracking branch 'origin/master' into pciMichael S. Tsirkin1-1/+1
Conflicts: hw/virtio-pci.c
2011-06-12pci: move ids of config space into PCIDeviceInfoIsaku Yamahata1-0/+7
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>
2011-05-06Fix typo in code and commentsStefan Weil1-1/+1
Replace writeable -> writable Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-04-07pci: add pci_register_bar_simple() APIAvi Kivity1-0/+3
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/+1
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 devfn for pci_find_device() instead of (slot, fn) pairIsaku Yamahata1-1/+1
(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>
2011-03-28pci: replace the magic, 256, for the maximum of devfnIsaku Yamahata1-0/+1
Introduce symbol PCI_SLOT_MAX for the # of slots, and replace the magic, 256. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-02-12pci: add creation functions that may failBlue Swirl1-0/+4
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-20pci: deassert intx on reset.Isaku Yamahata1-0/+2
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>
2011-01-10pci: allow devices being tagged as not hotpluggable.Gerd Hoffmann1-0/+3
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>
2010-12-24pci: introduce a helper function to convert qdev id to PCIDeviceIsaku Yamahata1-0/+1
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 Yamahata1-0/+1
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>
2010-12-17pci: add ich9 pci idAlexander Graf1-0/+1
We need a PCI ID for our new AHCI adapter. I just picked an ICH-9 because that's the one in the Q35 chipset. This patch adds a PCI ID define for an ICH-9 AHCI adapter. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-09pci: untangle pci/msi dependencyMichael S. Tsirkin1-3/+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/+4
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>
2010-11-22pci: use qdev reset framework for pci bus resetIsaku Yamahata1-0/+1
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-11-16pci: allow hotplug removal of cold-plugged devicesMichael S. Tsirkin1-1/+9
This patch fixes hot unplug of cold plugged devices (those present at system start), which got broken by 5beb8ad503c88a76f2b8106c3b74b4ce485a60e1 . Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Cam Macdonell <cam@cs.ualberta.ca> Tested-by: Cam Macdonell <cam@cs.ualberta.ca> Reported-by: Cam Macdonell <cam@cs.ualberta.ca>.
2010-10-27Merge branch 'pci' into for_anthonyMichael S. Tsirkin1-11/+94
2010-10-19pcie: helper functions for pcie capability and extended capabilityIsaku Yamahata1-0/+5
This patch implements helper functions for pci express capability and pci express extended capability allocation. NOTE: presence detection depends on pci_qdev_init() change. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-10-19msi: implements msiIsaku Yamahata1-3/+7
implements msi related functions. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-10-19pci: introduce helper function to handle msi-x and msi.Isaku Yamahata1-0/+3
this patch implements helper functions to handle msi-x and msi uniformly. They will be used later. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-10-19pci: introduce helper functions to test-and-{clear, set} mask in ↵Isaku Yamahata1-0/+70
configuration space This patch introduces helper functions to test-and-{clear, set} mask in configuration space. pci_{byte, word, long, quad}_test_and_{clear, set}_mask(). They will be used later. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-09-20pci: implement RW1C register framework.Isaku Yamahata1-0/+3
Implement RW1C register framework. With this patch, it would be easy to implement W1C(Write 1 to Clear) register by just setting w1cmask. Later RW1C register will be used by pcie. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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