Virtual Address Space

[arshad hussain]

> On 28-Sep-2016, at 10:36 am, Madhu K <madhu.sk89 at gmail.com> wrote:
> 
> Hi All,

The support comes right through from the architecture. 

Linear address: Also virtual address. This is Address CPU can address. This is 0 - 4GB under 32bit architecture.
Physical address: This are actual memory installed in your system. Linear address have to be converted to 
physical address eventually. MMU translate linear address with the help of paging to physical address.


> 
> This is to understand the Virtual address space.Basically who generates the virtual addresses CPU or GNU compiler?

A program image generated by compiler & linker uses Virtual Address . During execution of the program CPU + MMU 
translates or maps each virtual address to physical address.

Net-net this is architecture dependent and would highly recommend reading Intel’s Architecture Manual for your reference.

> 
> Thanks
> Madhu
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