On 29.05.22 16:44, Lad, Prabhakar wrote:
> Thanks, after updating gicv_base to 0xf106f000 I get an "forbidden
> access" error, looking at the address it belongs to ethernet
> "e6800304" and this is configured in the memory regions
>
> /* AVB */ {
> .phys_start = 0xe6800000,
> .virt_start = 0xe6800000,
> .size = 0x800,
This turns the region into a so-called sub-page (see
JAILHOUSE_MEMORY_IS_SUBPAGE), and then...
> .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
> JAILHOUSE_MEM_IO,
...you also need to specify the permitted access width for registers in
that sub-page (JAILHOUSE_MEM_IO_{8,16,32,64}). If unaligned accesses are
ok (unlikely), also set JAILHOUSE_MEM_IO_UNALIGNED.
Jan
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