diff options
| author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
|---|---|---|
| committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
| commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
| tree | 65ca85f13617aee1dce474596800950f266a456c /roms/openbios/arch/sparc64/context.h | |
| download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip | |
Diffstat (limited to 'roms/openbios/arch/sparc64/context.h')
| -rw-r--r-- | roms/openbios/arch/sparc64/context.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/roms/openbios/arch/sparc64/context.h b/roms/openbios/arch/sparc64/context.h new file mode 100644 index 00000000..2756fa15 --- /dev/null +++ b/roms/openbios/arch/sparc64/context.h @@ -0,0 +1,33 @@ +#ifndef SPARC64_CONTEXT_H +#define SPARC64_CONTEXT_H + +#define STACK_BIAS 2047 + +struct context { + /* General registers */ + uint64_t regs[32]; + uint64_t pc; + uint64_t npc; +#define REG_O0 8 +#define REG_SP 14 +#define SP_LOC(ctx) (&(ctx)->regs[REG_SP]) + /* Flags */ + /* Optional stack contents */ + uint64_t return_addr; + uint64_t param[0]; +}; + +/* Create a new context in the given stack */ +struct context * +init_context(uint8_t *stack, uint64_t stack_size, int num_param); + +/* Switch context */ +struct context *switch_to(struct context *); + +/* Holds physical address of boot context */ +extern unsigned long __boot_ctx; + +/* This can always be safely used to refer to the boot context */ +#define boot_ctx ((struct context *) phys_to_virt(__boot_ctx)) + +#endif /* SPARC64_CONTEXT_H */ |