diff options
Diffstat (limited to 'src/dev/isa_fake.hh')
| -rw-r--r-- | src/dev/isa_fake.hh | 32 |
1 files changed, 10 insertions, 22 deletions
diff --git a/src/dev/isa_fake.hh b/src/dev/isa_fake.hh index 6665f1a78..c4072e42c 100644 --- a/src/dev/isa_fake.hh +++ b/src/dev/isa_fake.hh @@ -25,8 +25,7 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * - * Authors: Miguel Serrano - * Ali Saidi + * Authors: Ali Saidi */ /** @file @@ -42,10 +41,11 @@ #include "mem/packet.hh" /** - * IsaFake is a device that returns -1 on all reads and - * accepts all writes. It is meant to be placed at an address range + * IsaFake is a device that returns, BadAddr, 1 or 0 on all reads and + * rites. It is meant to be placed at an address range * so that an mcheck doesn't occur when an os probes a piece of hw - * that doesn't exist (e.g. UARTs1-3). + * that doesn't exist (e.g. UARTs1-3), or catch requests in the memory system + * that have no responders.. */ class IsaFake : public BasicPioDevice { @@ -53,9 +53,12 @@ class IsaFake : public BasicPioDevice struct Params : public BasicPioDevice::Params { Addr pio_size; + bool retBadAddr; + uint8_t retData; }; protected: const Params *params() const { return (const Params*)_params; } + uint64_t retData; public: /** @@ -77,23 +80,8 @@ class IsaFake : public BasicPioDevice * @param data the data to not write. */ virtual Tick write(PacketPtr pkt); -}; -/** - * BadAddr is a device that fills the packet's result field with "BadAddress". - * @todo: Consider consolidating with IsaFake and similar classes. - */ -class BadAddr : public BasicPioDevice -{ - public: - struct Params : public BasicPioDevice::Params - { - }; - - BadAddr(Params *p); - virtual void init(); - virtual Tick read(PacketPtr pkt); - virtual Tick write(PacketPtr pkt); + void init(); }; -#endif // __TSUNAMI_FAKE_HH__ +#endif // __ISA_FAKE_HH__ |