Hi:
background:
I run virtio_net and virt_con in the lastest version, it is run OK, but I try
to add another virito blk, I meet run error below:
"Unhandled offset of 0x400 of size 4, reading
Assertion failed: !"panic"
(/home/yadong.li/seL4_vm_11/sel4_horizon/camkes-arm-vm/projects/seL4_projects_libs/libsel4vmmplatsupport/src/drivers/virtio_emul.c:
emul_io_in: 71)"
I add print on my enviornmen, found:
********************start[0x1000], end[0x1400] /*net*/
********************start[0x1400], end[0x1800] /*con*/
********************start[0x1800], end[0x1c00] /*blk*/
---------------------------virtio_con_io_in, con = 0x55f3238, offset =
0x400[0x1800:0x1400]
port_no:1800 should belong "blk", but it recongnize as belong
"con"(con may be not use the offset 0 feature), the boundary may be have some
problem
the function:
static int alloc_free_io_port_range(vmm_io_port_list_t *io_list, ioport_range_t
*io_range)
{
uint16_t free_port_addr = io_list->alloc_addr;
if (free_port_addr + io_range->size < free_port_addr) {
/* Possible overflow */
return -1;
}
io_list->alloc_addr += io_range->size;
io_range->start = free_port_addr;
io_range->end = free_port_addr + io_range->size;
return 0;
}
I think "io_range->end = free_port_addr + io_range->size;" should change to
"io_range->end = free_port_addr + io_range->size - 1;" ?
Thank you very much!
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