I am in the process of trying to port the xen-arm bu= ild targeted for the Tegra 250 to an OMAP3 architecture. I am running into = problems at a couple of places. The first problem I ran into happened while= trying to create the xenheap. I was getting the following message:

“Unpredicted predecessor merge : order =3D 10,= page =3D 0x80000”

I was able to fix this by increasing the registered = memory bank size from 0x0400 0000 to 0x1000 0000. Continuing on, I faced an= other memory problem when constructing domain 0. I get the following error:=

“Not enough RAM for domain 0 allocation.”= ;

I tried increasing the registered memory bank size e= ven more, but I end up having the problem while initializing the xenheap ag= ain, only it happens with an order of 11 instead of 10. It seems that= my problem is with the memory mapping/allocation, but I am not entirely sure where everything needs to be and why. Can anyon= e tell me what I am doing incorrectly with my memory mapping?

Memory setup:

From platform.S

static void omap3_memory_init(void)

{

&nbs= p; register_memory_bank(0x80300000, 0x1= 0000000);

}

From start.S

mem_map_table:

&nbs= p; MAP_ENTRY(0x80300000, 0x80300000, 10= 20, PDE_TYPE_HYPERVISOR)

&nbs= p; MAP_ENTRY(0xFF000000, MEMMAP_HYPERVI= SOR_BASE, 16, PDE_TYPE_HYPERVISOR)

&nbs= p; MAP_ENTRY(0xE0000000, 0x48000000, 16= , PDE_TYPE_IO) = ; &n= bsp; = ; /* L4-Core &n= bsp; = ; */

&nbs= p; MAP_ENTRY(0xE1000000, 0x49000000, 1,= P= DE_TYPE_IO) &nbs= p; &= nbsp; /* L4-Per= &nb= sp; = */

&nbs= p; MAP_ENTRY(0xE1100000, 0x68000000, 1,= P= DE_TYPE_IO) &nb= sp; = &nb= sp; = /* L3-Control */

&nbs= p; MAP_ENTRY(0xE1200000, 0x6C000000, 1,= PDE_TYP= E_IO) &nb= sp; = &nb= sp; = /* L3-SMS = ; &n= bsp; */

&nbs= p; MAP_ENTRY(0xE1300000, 0x5C000000, 16= , PDE_TYPE_IO)<= /o:p>

&nbs= p; MAP_ENTRY(0,0,0,0)

From memap.h

#define MEMMAP_HYPERVISOR_LIMIT &nb= sp; = &nb= sp; (0xA0000000)

#define MEMMAP_HYPERVISOR_SIZE &nbs= p; &= nbsp; &nb= sp; (0x00B00000)

#define MEMMAP_HYPERVISOR_BASE &nbs= p; = &nb= sp; (0x80300000)

#define MEMMAP_GUEST0_PARTITION_BASE &nb= sp; = (MEMMAP_HYPERVISOR_BASE + MEMMAP_HYPERVISOR_SIZE)

#define MEMMAP_GUEST0_PARTITION_SIZE &nb= sp; = (0x10000000)

#define MEMMAP_GUEST0_PARTITION_LIMIT &nb= sp; = (MEMMAP_GUEST0_PARTITION_BASE + MEMMAP_GUEST0_PARTITION_SIZE)

#define MEMMAP_GUEST0_IMAGE_SIZE &n= bsp; = ; (0x0180000)

#define MEMMAP_GUEST0_RAMDISK_SIZE = &n= bsp; (0x00400000)

#define MEMMAP_GUEST0_IMAGE_BASE &n= bsp; &nbs= p; (MEMMAP_GUEST0_PARTITION_LIMIT= - MEMMAP_GUEST0_IMAGE_SIZE)

OMAP3 Memory Map:

0x0000 0000 – 0x3FFF FFFF &nb= sp; = Boot space GPM= C (Seems unusable)

0x4000 0000 – 0x47FF FFFF &n= bsp; = ; On-chip Memory (See= ms unusable)

0x4800 0000 – 0x6FFF FFFF &nb= sp; = Various periph= erals, registers, and configurations

0x7000 0000 – 0x7FFF FFFF &n= bsp; = ; Virtual Address spa= ce 0

0x8000 0000 – 0xBFFF FFFF &nb= sp; = SDRAM

0xE000 0000 – 0xFFFF FFFF &n= bsp; = ; Virtual Address spa= ce 1

Thanks,

Robbie VanVossen