Michael Brown d3db00ecf9 [pcbios] Restrict external memory allocations to the low 4GB ...

When running the 64-bit BIOS version of iPXE, restrict external memory
allocations to the low 4GB to ensure that allocations (such as for
initrds) fall within our identity-mapped memory region, and will be
accessible to the potentially 32-bit operating system.

Move largest_memblock() back to memtop_umalloc.c, since this change
imposes a restriction that applies only to BIOS builds.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

2016-03-08 13:25:09 +00:00

..

apm.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

basemem.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

bios_console.c

[librm] Provide an abstraction wrapper for prot_call

2016-02-18 23:23:38 +00:00

bios_nap.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

bios_reboot.c

[librm] Provide an abstraction wrapper for prot_call

2016-02-18 23:23:38 +00:00

bios_smbios.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

bios_timer.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

biosint.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

e820mangler.S

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

fakee820.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

hidemem.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

int13.c

[librm] Provide an abstraction wrapper for prot_call

2016-02-18 23:23:38 +00:00

int13con.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

memmap.c

[bios] Make uses of REAL_CODE() and PHYS_CODE() 64-bit clean

2016-02-18 15:12:51 +00:00

memtop_umalloc.c

[pcbios] Restrict external memory allocations to the low 4GB

2016-03-08 13:25:09 +00:00

pcibios.c

[bios] Make uses of REAL_CODE() and PHYS_CODE() 64-bit clean

2016-02-18 15:12:51 +00:00

pnpbios.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

rtc_entropy.c

[bios] Make uses of REAL_CODE() and PHYS_CODE() 64-bit clean

2016-02-18 15:12:51 +00:00

rtc_time.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00

vesafb.c

[bios] Add bin-x86_64-pcbios build platform

2016-02-16 19:32:32 +00:00