On which serial port numbers will see Qemu Guest OSes the attached serial ports?
Clash Royale CLAN TAG#URR8PPP
Currently I am trying to give a physical rs232 port to a Qemu VM.
Currently I use
-chardev serial,path=/dev/ttyUSB0,id=hostusbserial
command argument to do that. However, being an usb-based serial port, sometimes it should be able to handle hot add/removes without a guest restart, too.
Furthermore, any app on guest OS wants to know a serial port number to talk on. In the case of Windows guests, these would be com1-com4, while Linuxes would use /dev/ttyS0-3.
Qemu docs don't reveal too much about it.
Sharing the usb host with device_add usb-host,... works, but it is not a viable option. Thus:
- Sharing should happen on the rs232 level,
- it should be hotadd-capable,
- and somehow I should influence (or, at least see), which serial port will it be on the guest side.
Can I somehow do this with qmp? (Qmp is that qemu monitor, I handle it with telnetting to a tcp port on -monitor telnet:127.0.0.1:4444,server,nowait.
qemu
asked Jan 30 at 15:23
peterhpeterh
4,446113157
add a comment |
Currently I am trying to give a physical rs232 port to a Qemu VM.
Currently I use
-chardev serial,path=/dev/ttyUSB0,id=hostusbserial
command argument to do that. However, being an usb-based serial port, sometimes it should be able to handle hot add/removes without a guest restart, too.
Furthermore, any app on guest OS wants to know a serial port number to talk on. In the case of Windows guests, these would be com1-com4, while Linuxes would use /dev/ttyS0-3.
Qemu docs don't reveal too much about it.
Sharing the usb host with device_add usb-host,... works, but it is not a viable option. Thus:
- Sharing should happen on the rs232 level,
- it should be hotadd-capable,
- and somehow I should influence (or, at least see), which serial port will it be on the guest side.
Can I somehow do this with qmp? (Qmp is that qemu monitor, I handle it with telnetting to a tcp port on -monitor telnet:127.0.0.1:4444,server,nowait.
qemu
asked Jan 30 at 15:23
peterhpeterh
4,446113157
I am not sure if (1)-(3) are essentially different questions. If needed, I can split the question into this 3 parts.
– peterh
Jan 30 at 15:25
add a comment |
Currently I am trying to give a physical rs232 port to a Qemu VM.
Currently I use
-chardev serial,path=/dev/ttyUSB0,id=hostusbserial
command argument to do that. However, being an usb-based serial port, sometimes it should be able to handle hot add/removes without a guest restart, too.
Furthermore, any app on guest OS wants to know a serial port number to talk on. In the case of Windows guests, these would be com1-com4, while Linuxes would use /dev/ttyS0-3.
Qemu docs don't reveal too much about it.
Sharing the usb host with device_add usb-host,... works, but it is not a viable option. Thus:
- Sharing should happen on the rs232 level,
- it should be hotadd-capable,
- and somehow I should influence (or, at least see), which serial port will it be on the guest side.
Can I somehow do this with qmp? (Qmp is that qemu monitor, I handle it with telnetting to a tcp port on -monitor telnet:127.0.0.1:4444,server,nowait.
qemu
asked Jan 30 at 15:23
peterhpeterh
4,446113157
Currently I am trying to give a physical rs232 port to a Qemu VM.
Currently I use
-chardev serial,path=/dev/ttyUSB0,id=hostusbserial
command argument to do that. However, being an usb-based serial port, sometimes it should be able to handle hot add/removes without a guest restart, too.
Furthermore, any app on guest OS wants to know a serial port number to talk on. In the case of Windows guests, these would be com1-com4, while Linuxes would use /dev/ttyS0-3.
Qemu docs don't reveal too much about it.
Sharing the usb host with device_add usb-host,... works, but it is not a viable option. Thus:
- Sharing should happen on the rs232 level,
- it should be hotadd-capable,
- and somehow I should influence (or, at least see), which serial port will it be on the guest side.
Can I somehow do this with qmp? (Qmp is that qemu monitor, I handle it with telnetting to a tcp port on -monitor telnet:127.0.0.1:4444,server,nowait.
qemu
qemu
asked Jan 30 at 15:23
peterhpeterh
4,446113157
asked Jan 30 at 15:23
peterhpeterh
4,446113157
asked Jan 30 at 15:23
peterhpeterh
4,446113157
asked Jan 30 at 15:23
peterhpeterh
4,446113157
asked Jan 30 at 15:23
peterhpeterh
4,446113157
4,446113157
I am not sure if (1)-(3) are essentially different questions. If needed, I can split the question into this 3 parts.
– peterh
Jan 30 at 15:25
add a comment |
I am not sure if (1)-(3) are essentially different questions. If needed, I can split the question into this 3 parts.
– peterh
Jan 30 at 15:25
I am not sure if (1)-(3) are essentially different questions. If needed, I can split the question into this 3 parts.
– peterh
Jan 30 at 15:25
I am not sure if (1)-(3) are essentially different questions. If needed, I can split the question into this 3 parts.
– peterh
Jan 30 at 15:25
add a comment |
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I am not sure if (1)-(3) are essentially different questions. If needed, I can split the question into this 3 parts.
– peterh
Jan 30 at 15:25