linux_dsm_epyc7002/arch/x86
Jeremy Fitzhardinge ccf3fe02e3 x86-32: use brk segment for allocating initial kernel pagetable
Impact: use new interface instead of previous ad hoc implementation

Rather than having special purpose init_pg_table_start/end variables
to delimit the kernel pagetable built by head_32.S, just use the brk
mechanism to extend the bss for the new pagetable.

This patch removes init_pg_table_start/end and pg0, defines __brk_base
(which is page-aligned and immediately follows _end), initializes
the brk region to start there, and uses it for the 32-bit pagetable.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-03-14 17:23:47 -07:00
..
boot x86: remove zImage support 2009-03-11 11:00:00 -07:00
configs Merge branches 'x86/apic', 'x86/defconfig', 'x86/memtest', 'x86/mm' and 'linus' into x86/core 2009-02-26 06:31:32 +01:00
crypto crypto: crc32c-intel - Switch to shash 2008-12-25 11:01:37 +11:00
ia32 x86: ia32_signal: introduce {get|set}_user_seg() 2009-02-22 17:54:47 +01:00
include/asm x86-32: use brk segment for allocating initial kernel pagetable 2009-03-14 17:23:47 -07:00
kernel x86-32: use brk segment for allocating initial kernel pagetable 2009-03-14 17:23:47 -07:00
kvm KVM: VMX: Flush volatile msrs before emulating rdmsr 2009-02-15 02:47:39 +02:00
lguest x86-32: use brk segment for allocating initial kernel pagetable 2009-03-14 17:23:47 -07:00
lib x86: use _types.h headers in asm where available 2009-02-13 11:35:01 -08:00
math-emu Merge branch 'linus' into core/percpu 2009-03-11 10:29:28 +01:00
mm x86: add brk allocation for very, very early allocations 2009-03-14 15:37:14 -07:00
oprofile x86: oprofile: don't set counter width from cpuid on Core2 2009-03-03 12:04:22 +01:00
pci x86, apic: remove genapic.h 2009-02-17 17:52:44 +01:00
power x86: use _types.h headers in asm where available 2009-02-13 11:35:01 -08:00
vdso x86, mm: rename TASK_SIZE64 => TASK_SIZE_MAX 2009-02-21 00:09:44 +01:00
video
xen x86: add brk allocation for very, very early allocations 2009-03-14 15:37:14 -07:00
Kconfig Merge branches 'x86/asm', 'x86/debug', 'x86/mm', 'x86/setup', 'x86/urgent' and 'linus' into x86/core 2009-03-12 11:50:15 +01:00
Kconfig.cpu Merge branch 'x86/urgent' into core/percpu 2009-02-10 00:41:02 +01:00
Kconfig.debug Merge branch 'linus' into x86/apic 2009-02-22 20:05:19 +01:00
Makefile Merge branch 'core/percpu' into x86/core 2009-02-13 09:45:09 +01:00
Makefile_32.cpu x86: merge winchip-2 and winchip-2a cpu choices 2008-10-13 10:22:48 +02:00