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
1bec145cd9
multi-process: Retrieve PCI info from remote process
...
Retrieve PCI configuration info about the remote device and
configure the Proxy PCI object based on the returned information
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: 85ee367bbb993aa23699b44cfedd83b4ea6d5221.1611938319.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
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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
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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
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
