15377f6e79
msix: Assert that specified vector is in range
...
There were several different ways to deal with the situation where the
vector specified for a msix function is out of bound:
- early return a function and keep progresssing
- propagate the error to the caller
- mark msix unusable
- assert it is in bound
- just ignore
An out-of-bound vector should not be specified if the device
implementation is correct so let msix functions always assert that the
specified vector is in range.
An exceptional case is virtio-pci, which allows the guest to configure
vectors. For virtio-pci, it is more appropriate to introduce its own
checks because it is sometimes too late to check the vector range in
msix functions.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com >
Message-Id: <20220829083524.143640-1-akihiko.odaki@daynix.com >
Reviewed-by: Michael S. Tsirkin <mst@redhat.com >
Signed-off-by: Michael S. Tsirkin <mst@redhat.com >
Reviewed-by: Yuval Shaia <yuval.shaia.ml@gmail.com >
Signed-off-by: Akihiko Odaki <<a href="mailto:akihiko.odaki@daynix.com " target="_blank">akihiko.odaki@daynix.com </a>><br>
2022-11-07 14:08:17 -05:00
78e27dfa8d
vfio-user: handle reset of remote device
...
Adds handler to reset a remote device
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: 112eeadf3bc4c6cdb100bc3f9a6fcfc20b467c1b.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
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
3123f93d6b
vfio-user: handle PCI BAR accesses
...
Determine the BARs used by the PCI device and register handlers to
manage the access to the same.
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: 3373e10b5be5f42846f0632d4382466e1698c505.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
15ccf9bee7
vfio-user: handle DMA mappings
...
Define and register callbacks to manage the RAM regions used for
device DMA
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: faacbcd45c4d02c591f0dbfdc19041fbb3eae7eb.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
90072f29d6
vfio-user: handle PCI config space accesses
...
Define and register handlers for PCI config space accesses
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: be9d2ccf9b1d24e50dcd9c23404dbf284142cec7.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
9fb3fba149
vfio-user: run vfio-user context
...
Setup a handler to run vfio-user context. The context is driven by
messages to the file descriptor associated with it - get the fd for
the context and hook up the handler with it
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: e934b0090529d448b6a7972b21dfc3d7421ce494.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
a6e8d6d98e
vfio-user: find and init PCI device
...
Find the PCI device with specified id. Initialize the device context
with the QEMU PCI device
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: 7798dbd730099b33fdd00c4c202cfe79e5c5c151.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com >
2022-06-15 16:43:42 +01:00
87f7249ff6
vfio-user: instantiate vfio-user context
...
create a context with the vfio-user library to run a PCI device
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: a452871ac8c812ff96fc4f0ce6037f4769953fab.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
