- About Inter-VM Communication - Shared Memory
Re: About Inter-VM Communication - Shared Memory
Musa Ünal <umusasadik@...>
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Thanks Terry, I will look about it
Zou, Terry <terry.zou@...
>, 2 Eyl 2021 Per, 11:48 tarihinde şunu yazdı:
Wo, you mean ivshmem shared memory privilege for each VM, actually you already referred the doc : ) https://projectacrn.github.io/latest/developer-guides/hld/ivshmem-hld.html
Specific to ivshmem, actually it is a simple protocol for virtual VM communication from qemu, just mapping share memory as virtual PCI device in VM. There is no
privilege control for each VM, so in ACRN inter-vm commutation, we also follow the same way, no difference for each VM of shared memory R/W.
But if you have hard request for Write control, you can implement it in upper layer application or software right.
Best & Regards
thank you for your reply, yes I would like to arrange that one vm can read/write to the shared memory (ivshmem) and one of them can only read from there.
Zou, Terry <terry.zou@...>, 2 Eyl 2021 Per, 03:29 tarihinde
Hi Musa, welcome to ACRN community : )
Specific to you question, do you mean R/W privilege for one storage/partition? One VM can R/W the storage
and other VM can only read right. Or other resource you want to set privilege?
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