Li Fei1 ea0ba47b02 hv: vpci: add vmsi capability registers rw permission control ...

Guest may write a MSI capability register with only RW bits setting on. This works
well on native since the hardware will make sure RO register bits could not over-write.
However, the software needs more efforts to achieve this. This patch does this by
defining a RW permission mapping base on bits. When a guest tries to write a MSI
Capability register, only modify the RW bits on vCFG space.

Tracked-On: #4550
Signed-off-by: Li Fei1 <fei1.li@intel.com>

2020-05-28 13:44:18 +08:00

5.5 KiB

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