misc.hpp

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#pragma once
 
#include <cstddef>
#include <cstdint>
 
namespace virtio {
 
[[nodiscard]] constexpr auto AlignUp(size_t value, size_t align) -> size_t {
  return (value + align - 1) & ~(align - 1);
}
 
[[nodiscard]] constexpr auto IsPowerOfTwo(size_t value) -> bool {
  return value != 0 && (value & (value - 1)) == 0;
}
 
struct IoVec {
  uintptr_t phys_addr;
  size_t len;
};
 
}  // namespace virtio