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qemu/pc-bios/vof/entry.S

50 lines
957 B
ArmAsm

#define LOAD32(rn, name) \
lis rn,name##@h; \
ori rn,rn,name##@l
#define ENTRY(func_name) \
.text; \
.align 2; \
.globl .func_name; \
.func_name: \
.globl func_name; \
func_name:
#define KVMPPC_HCALL_BASE 0xf000
#define KVMPPC_H_RTAS (KVMPPC_HCALL_BASE + 0x0)
#define KVMPPC_H_VOF_CLIENT (KVMPPC_HCALL_BASE + 0x5)
. = 0x100 /* Do exactly as SLOF does */
ENTRY(_start)
LOAD32(2, __toc_start)
b entry_c
ENTRY(_prom_entry)
LOAD32(2, __toc_start)
stwu %r1,-112(%r1)
stw %r31,104(%r1)
mflr %r31
bl prom_entry
nop
mtlr %r31
lwz %r31,104(%r1)
addi %r1,%r1,112
blr
ENTRY(ci_entry)
mr 4,3
LOAD32(3,KVMPPC_H_VOF_CLIENT)
sc 1
blr
/* This is the actual RTAS blob copied to the OS at instantiate-rtas */
ENTRY(hv_rtas)
mr %r4,%r3
LOAD32(3,KVMPPC_H_RTAS)
sc 1
blr
.globl hv_rtas_size
hv_rtas_size:
.long . - hv_rtas;