Sun4m Sun4d What is Sun4m Sun4m refers to the Sun4 variant multiprocessor launched in early 1990 It was primarily used for SPARCserver and SPARCstation It is based on the MBus processor model introduced in the SPARCserver 600MP series Understanding Sun4m Architecture It has SuperSPARC processors with MBus and SBus interconnects
On the Sun4m Sun4c Sun4d and x86 platforms a Solaris 7 process looks like this On these platforms the kernel and user programs share the same context The system portion of a processs virtual address space occupies the high end of memory and the user portion occupies the lower end of memory
Toplevel page directory in SPARC whats its equivalent of x86s CR3
Difference between sun4 sun4c and sun4m subarchitectures
Can 32bit SPARC V8 application run on 64bit SPARC V9
I know that in x86 architecture I can read CR3 register in kernel context to follow page directory of kernel First in sun4 sun4c sun4d and sun4m architectures 32bit sparcv7 the MMU was called srmmu SPARC reference MMU and implemented a twolevel hardware table walk This is deprecated and I dont remember out of my head what the
Process Layout for Sun4m Sun4c Sun4d and x86 Platforms
Chapter 16 Debugging Oracle
Process Layout For Sun4m Sun4c Sun4d And X86 Platforms
6 The following figures show the Solaris Virtual Cheggcom
cache the MMU the IO architecture sun4 VME sun4c SBus and sun4m is based on SPRAC V8 CPUs where the older sun4 sun4c is based on V7 CPUs This is a bit simplified Eg the SM100 MBus CPU module is for sun4m machines but has two V7 CPUs Also The sun46xx CPU boards are sun4m with VME and SBus
The sun4m user and proc structures are larger than the equivalent sun4 or sun4c structures New fields have been added to handle multiple processors and the SRMMU Drivers that reference user or proc structures must be recompiled on a sun4m machine because offsets into these structures are machine architecturespecific 2 IO MMU and IO Cache
Sun4u Sun4m and Sun4d Key Differences Stromasys
Section 92 Virtual Address Spaces Solaris Internals Flylib
Coding Hints docsoraclecom
Process Layout For Sun4m Sun4c Sun4d And X86 Platforms
Process Layout for Sun4m Sun4c Sun4d and x86 Platforms On the Sun4m Sun4c Sun4d and x86 platforms a Solaris 7 process looks like this On these platforms the kernel and user programs share the same context The system portion of a processs virtual address space occupies the high end of memory and the user portion occupies the lower
The process address space on SPARC systems varies across different SPARC platforms according to the MMU on that platform SPARC has three different address space layouts The SPARC V7 combined 32bit kernel and process address space found on sun4c sun4d and sun4m machines Note that support for SPARC V7 exists only in Solaris 9 and earlier
The following figures show the Solaris Virtual Memory Layout on different hardware platforms SPARC 32Bit Shared KernelProcess Address Space sun4c sunt4d sun4m sun4c sun4m sun4d OxFFFFFFFF OxFFFFFFFF 256MB Kernel Context 512MB Kernel Context OxEFFFC000 Stack OxEF7EA000 OxDFFFE000 Stack Libraries OxDF7F9000 Libraries HEAPmalloc sbrk
the SPARC chip architectures as far as they were developed by Sun Microsystems now Oracle are named sun4az actual tapeout only for sun4 sun4c sun4d sun4m sun4u and sun4v This corresponds to ARM19 ARM11 Cortex ie evolution of the CPU design
PDF sun4m Architecture Porting Guide TEMLIB
On the Sun4m Sun4c Sun4d and x86 platforms a Solaris 7 process looks like this On these platforms the kernel and user programs share the same context The system portion of a processs virtual address space occupies the high end of memory and the user portion occupies the lower end of memory