edf5ca5dbe
include/hw/pci: Split pci_device.h off pci.h
...
PCIDeviceClass and PCIDevice are defined in pci.h. Many users of the
header don't actually need them. Similar structs live in their own
headers: PCIBusClass and PCIBus in pci_bus.h, PCIBridge in
pci_bridge.h, PCIHostBridgeClass and PCIHostState in pci_host.h,
PCIExpressHost in pcie_host.h, and PCIERootPortClass, PCIEPort, and
PCIESlot in pcie_port.h.
Move PCIDeviceClass and PCIDeviceClass to new pci_device.h, along with
the code that needs them. Adjust include directives.
This also enables the next commit.
Signed-off-by: Markus Armbruster <armbru@redhat.com >
Message-Id: <20221222100330.380143-6-armbru@redhat.com >
Reviewed-by: Michael S. Tsirkin <mst@redhat.com >
Signed-off-by: Michael S. Tsirkin <mst@redhat.com >
2023-01-08 01:54:22 -05:00
08cf3dc611
vfio-user: handle device interrupts
...
Forward remote device's interrupts to the guest
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Message-id: 9523479eaafe050677f4de2af5dd0df18c27cfd9.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
253007d147
vfio-user: IOMMU support for remote device
...
Assign separate address space for each device in the remote processes.
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: afe0b0a97582cdad42b5b25636a29c523265a10a.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
8f9a9259d3
vfio-user: define vfio-user-server object
...
Define vfio-user object which is remote process server for QEMU. Setup
object initialization functions and properties necessary to instantiate
the object
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: e45a17001e9b38f451543a664ababdf860e5f2f2.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
9b5b473eae
remote/machine: add vfio-user property
...
Add vfio-user to x-remote machine. It is a boolean, which indicates if
the machine supports vfio-user protocol. The machine configures the bus
differently vfio-user and multiprocess protocols, so this property
informs it on how to configure the bus.
This property should be short lived. Once vfio-user fully replaces
multiprocess, this property could be removed.
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: 5d51a152a419cbda35d070b8e49b772b60a7230a.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 14:50:41 +01:00
b6cc02d98f
multi-process: perform device reset in the remote process
...
Perform device reset in the remote process when QEMU performs
device reset. This is required to reset the internal state
(like registers, etc...) of emulated devices
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: 7cb220a51f565dc0817bd76e2f540e89c2d2b850.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
bd36adb8df
multi-process: create IOHUB object to handle irq
...
IOHUB object is added to manage PCI IRQs. It uses KVM_IRQFD
ioctl to create irqfd to injecting PCI interrupts to the guest.
IOHUB object forwards the irqfd to the remote process. Remote process
uses this fd to directly send interrupts to the guest, bypassing QEMU.
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: 51d5c3d54e28a68b002e3875c59599c9f5a424a1.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
c746b74a7d
multi-process: Synchronize remote memory
...
Add ProxyMemoryListener object which is used to keep the view of the RAM
in sync between QEMU and remote process.
A MemoryListener is registered for system-memory AddressSpace. The
listener sends SYNC_SYSMEM message to the remote process when memory
listener commits the changes to memory, the remote process receives
the message and processes it in the handler for SYNC_SYSMEM message.
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: 04fe4e6a9ca90d4f11ab6f59be7652f5b086a071.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
7ee3f82384
multi-process: PCI BAR read/write handling for proxy & remote endpoints
...
Proxy device object implements handler for PCI BAR writes and reads.
The handler uses BAR_WRITE/BAR_READ message to communicate to the
remote process with the BAR address and value to be written/read.
The remote process implements handler for BAR_WRITE/BAR_READ
message.
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: a8b76714a9688be5552c4c92d089bc9e8a4707ff.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
11ab872588
multi-process: Forward PCI config space acceses to the remote process
...
The Proxy Object sends the PCI config space accesses as messages
to the remote process over the communication channel
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: d3c94f4618813234655356c60e6f0d0362ff42d6.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
e7b2c9eaa2
multi-process: add proxy communication functions
...
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: d54edb4176361eed86b903e8f27058363b6c83b3.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
9f8112073a
multi-process: introduce proxy object
...
Defines a PCI Device proxy object as a child of TYPE_PCI_DEVICE.
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: b5186ebfedf8e557044d09a768846c59230ad3a7.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
ed5d001916
multi-process: setup memory manager for remote device
...
SyncSysMemMsg message format is defined. It is used to send
file descriptors of the RAM regions to remote device.
RAM on the remote device is configured with a set of file descriptors.
Old RAM regions are deleted and new regions, each with an fd, is
added to the RAM.
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: 7d2d1831d812e85f681e7a8ab99e032cf4704689.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
48b06f50d8
multi-process: Initialize message handler in remote device
...
Initializes the message handler function in the remote process. It is
called whenever there's an event pending on QIOChannel that registers
this function.
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: 99d38d8b93753a6409ac2340e858858cda59ab1b.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
ad22c3088b
multi-process: define MPQemuMsg format and transmission functions
...
Defines MPQemuMsg, which is the message that is sent to the remote
process. This message is sent over QIOChannel and is used to
command the remote process to perform various tasks.
Define transmission functions used by proxy and by remote.
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: 56ca8bcf95195b2b195b08f6b9565b6d7410bce5.1611938319.git.jag.raman@oracle.com
[Replace struct iovec send[2] = {0} with {} to make clang happy as
suggested by Peter Maydell <peter.maydell@linaro.org >.
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
3f0e7e57a3
multi-process: setup a machine object for remote device process
...
x-remote-machine object sets up various subsystems of the remote
device process. Instantiate PCI host bridge object and initialize RAM, IO &
PCI memory regions.
Signed-off-by: John G Johnson <john.g.johnson@oracle.com >
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com >
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com >
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com >
Message-id: c537f38d17f90453ca610c6b70cf3480274e0ba1.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2021-02-10 09:23:28 +00:00
