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diff --git a/docs/system/target-sparc.rst b/docs/system/target-sparc.rst new file mode 100644 index 0000000..589c88d --- /dev/null +++ b/docs/system/target-sparc.rst @@ -0,0 +1,81 @@ +.. _Sparc32-System-emulator: + +Sparc32 System emulator +----------------------- + +Use the executable ``qemu-system-sparc`` to simulate the following Sun4m +architecture machines: + +- SPARCstation 4 + +- SPARCstation 5 + +- SPARCstation 10 + +- SPARCstation 20 + +- SPARCserver 600MP + +- SPARCstation LX + +- SPARCstation Voyager + +- SPARCclassic + +- SPARCbook + +The emulation is somewhat complete. SMP up to 16 CPUs is supported, but +Linux limits the number of usable CPUs to 4. + +QEMU emulates the following sun4m peripherals: + +- IOMMU + +- TCX or cgthree Frame buffer + +- Lance (Am7990) Ethernet + +- Non Volatile RAM M48T02/M48T08 + +- Slave I/O: timers, interrupt controllers, Zilog serial ports, + keyboard and power/reset logic + +- ESP SCSI controller with hard disk and CD-ROM support + +- Floppy drive (not on SS-600MP) + +- CS4231 sound device (only on SS-5, not working yet) + +The number of peripherals is fixed in the architecture. Maximum memory +size depends on the machine type, for SS-5 it is 256MB and for others +2047MB. + +Since version 0.8.2, QEMU uses OpenBIOS https://www.openbios.org/. +OpenBIOS is a free (GPL v2) portable firmware implementation. The goal +is to implement a 100% IEEE 1275-1994 (referred to as Open Firmware) +compliant firmware. + +A sample Linux 2.6 series kernel and ram disk image are available on the +QEMU web site. There are still issues with NetBSD and OpenBSD, but most +kernel versions work. Please note that currently older Solaris kernels +don't work probably due to interface issues between OpenBIOS and +Solaris. + +The following options are specific to the Sparc32 emulation: + +``-g WxHx[xDEPTH]`` + Set the initial graphics mode. For TCX, the default is 1024x768x8 + with the option of 1024x768x24. For cgthree, the default is + 1024x768x8 with the option of 1152x900x8 for people who wish to use + OBP. + +``-prom-env string`` + Set OpenBIOS variables in NVRAM, for example: + + :: + + qemu-system-sparc -prom-env 'auto-boot?=false' \ + -prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single' + +``-M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook]`` + Set the emulated machine type. Default is SS-5. |