Limbo Pc Emulator 2.11 0 Apk
Charise Farag
By default QEMU will build both the qemu-system-sparc and qemu-system-sparc64 system emulators unless QEMU has been configured with a specific target list. If you are looking to build just the SPARC system emulators from source yourself, then pass the options --target-list="sparc-softmmu sparc64-softmmu" to QEMU's configure script.
In order to improve the compatibility of QEMU's sun4u machine, there have beena number of changes that have been made during the 2.11 development cycle whichin some cases will require changes to the command line to startqemu-system-sparc64.
Many OSs either don't have drivers for other network cards, don't build othernetwork cards for SPARC architecture or even have faulty drivers because theyhave never been tested on big-endian machines. Implementing the real onboardsunhme enables networking for just about every OS.
Previous versions of QEMU attached all PCI devices to the sabre PCI bus whichdoes not match the PCI topology of a real Ultra 5. On a real Ultra 5 all PCIdevices are attached behind the two simba bridges; in-built devices areattached to bus A whilst bus B has 4 free PCI slots for use.
In order to support this topology QEMU included some hacks to enable PCI devicesto be connected directly to the sabre PCI bus and re-work the interrupt routing.Typically this is visible during Linux boot as a set of warnings about overlappingPCI window ranges, and it is up to the OS to attempt to resolve the clashesitself.
By correctly modelling these bridges, the PCI topology and interrupt routingare now implemented correctly as per the available documentation which removesall visible guest OS warnings in my tests and allows these hacks to be removed.
SPARC emulation is gradually improving over time and newer versions of QEMU will run significantly better than older ones. For more detailed information, check your QEMU version against the table below:
Artyom has contributed several patches to improve SPARC emulation under QEMU and has lot of related information, particularly for users trying to run Solaris images under emulation. Some of the content is a little out of date (OpenBIOS should work with practically all Solaris versions now) but the FAQ is very helpful indeed.
Olivier Danet has implemented a sun4m machine in an FPGA which is capable of booting many SPARC32 OSs, and as a consequence has provided several patches to fix bugs in SPARC32 emulation (and also OpenBIOS)