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Matt Evans af7b086859 kvm tools: Split x86 arch-specific bits into x86/
Create a new arch-specific subdirectory to contain architecture-specific code
and includes.

The Makefile now adds various arch-specific objects based on detected
architecture.  That aside, this patch should only contain code moves.  These
include:

- x86-specific kvm_cpu setup, kernel loading, memory setup etc. now in
  x86/kvm{-cpu}.c
- BIOS now lives in x86/bios/
- ioport setup
- KVM extensions are asserted in arch-specific kvm.c now, so each architecture
  can manage its own dependencies.
- Various architecture-specific #defines are moved into $(ARCH)/include/kvm{-cpu}.h
  such as struct kvm_cpu, KVM_NR_CPUS, KVM_32BIT_GAP_SIZE.

Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
2015-06-01 16:39:49 +01:00

26 lines
399 B
ArmAsm

/*
* handy BIOS macros
*/
/*
* switch to BIOS stack
*/
.macro stack_swap
movw %ss, %cs:(__CALLER_SS)
movl %esp, %cs:(__CALLER_SP)
movl %edx, %cs:(__CALLER_CLOBBER)
movw $MB_BIOS_SS, %dx
movw %dx, %ss
movw $MB_BIOS_SP, %sp
movl %cs:(__CALLER_CLOBBER), %edx
.endm
/*
* restore the original stack
*/
.macro stack_restore
movl %cs:(__CALLER_SP), %esp
movw %cs:(__CALLER_SS), %ss
.endm