Regarding virtual to physical memory mapping..

[kiran pawar]

Hi all,

    I am working on grub-1.97.1. I wanted to know if there is any mechanism in grub2 that maps virtual addresses to physical addresses below 1 MB?

    When I checked the code for grub-0.97, I found that there are function as below

           #define  phys_to_virt(x) (x)

           #define  virt_to_phys(x) (x)

  

Are there any similar functions in grub-1.97.1? 

Also, when I allocated memory using grub_malloc() and printed the address returned from the function it was (0x7da6d810). This seems to be a 32-bit address. I wanted to know whether I can allocate some memory in the region below 1MB?

Regards,

Kiran Pawar.