acrn-hypervisor/hypervisor/bsp/ld/link_ram.ld.in
Minggui Cao 691a0e2e56 HV: add a specific stack space used in CPU booting
The original stack used in CPU booting is: ld_bss_end + 4KB;
which could be out of the RAM size limit defined in link_ram file.

So add a specific stack space in link_ram file, and used in
CPU booting.

Tracked-On: #4738
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2020-04-29 13:56:40 +08:00

104 lines
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ENTRY(cpu_primary_start_32)
MEMORY
{
/* Low 1MB of memory for secondary processor start-up */
lowram : ORIGIN = 0, LENGTH = CONFIG_LOW_RAM_SIZE
/* 32 MBytes of RAM for HV */
ram : ORIGIN = CONFIG_HV_RAM_START, LENGTH = CONFIG_HV_RAM_SIZE
}
SECTIONS
{
.boot :
{
_ld_ram_start = . ;
KEEP(*(multiboot_header)) ;
} > ram
.entry :
{
KEEP(*(entry)) ;
ld_entry_end = . ;
} > ram
.text :
{
*(.text .text*) ;
*(.gnu.linkonce.t*)
*(.note.gnu.build-id)
*(.retpoline_thunk)
} > ram
/*Align text top boundary to 2MBytes.*/
. = ALIGN(0x200000);
ld_text_end = . ;
.rodata :
{
*(.rodata*) ;
} > ram
.rela :
{
*(.rela*)
*(.dyn*)
} > ram
. = ALIGN(4) ;
ld_trampoline_load = .;
.trampoline : AT (ld_trampoline_load)
{
ld_trampoline_start = .;
*(.trampoline_reset);
. = ALIGN(4);
ld_trampoline_end = .;
} > lowram
ld_trampoline_size = ld_trampoline_end - ld_trampoline_start;
.data (ld_trampoline_load + ld_trampoline_size):
{
*(.data) ;
*(.data*) ;
*(.sdata)
*(.gnu.linkonce.d*)
} > ram
.boot_stack :
{
/* 4K for the boot stack */
. += 4096;
stack_for_boot = .;
. = ALIGN(4);
} > ram
.bss_noinit (NOLOAD):
{
. = ALIGN(4) ;
*(.bss_noinit) ;
*(.bss_noinit*) ;
. = ALIGN(4) ;
} > ram
.bss (NOLOAD):
{
. = ALIGN(4) ;
ld_bss_start = . ;
*(.bss) ;
*(.bss*) ;
*(COMMON) ;
. = ALIGN(4) ;
ld_bss_end = . ;
} > ram
_ld_ram_size = LENGTH(ram) ;
_ld_ram_end = _ld_ram_size + _ld_ram_start ;
}