Method check_range

pci/src/vfio.rs:308–321

Check if a guest address is within the range of mmio regions

(&self, guest_addr: u64, size: u64)

unsafe impl MmioRegionRange for Vec<MmioRegion> {
    // Check if a guest address is within the range of mmio regions
    fn check_range(&self, guest_addr: u64, size: u64) -> bool {
        let Some(guest_addr_end) = guest_addr.checked_add(size) else {
            return false;
        };
        for region in self.iter() {
            let Some(region_end) = region.start.raw_value().checked_add(region.length) else {
                return false;
            };
            if guest_addr >= region.start.raw_value() && guest_addr_end <= region_end {
                return true;
            }
        }
        false
    }

    // Locate the user region address for a guest address within all mmio regions
    fn find_user_address(&self, guest_addr: u64, size: u64) -> Result<*mut u8, io::Error> {