On Wed, 14 Jul 2021 at 12:13, Hiroko Shimizu <hiroko07...@gmail.com> wrote: > > Hello, > I want to switch the memory read-only mode with > memory_region_set_readonly() function for writing a value to memory under a > specific condition. I checked that I could switch the mode using > memory_region_set_readonly(), but I couldn't write a value to the memory > region when the mode was false. > What should I do?
What memory region are you trying to mark read-only ? In particular, the documentation for memory_region_set_readonly() says it is only useful for RAM regions (ie MRs which are backed by a bit of host memory, not by read/write IO function callbacks). thanks -- PMM
