Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / openbios / arch / sparc32 / context.h

diff --git a/qemu/roms/openbios/arch/sparc32/context.h b/qemu/roms/openbios/arch/sparc32/context.h
new file mode 100644 (file)
index 0000000..8689d56
--- /dev/null
+++ b/qemu/roms/openbios/arch/sparc32/context.h
@@ -0,0 +1,31 @@
+#ifndef SPARC32_CONTEXT_H
+#define SPARC32_CONTEXT_H
+
+struct context {
+    /* General registers */
+    uint32_t regs[32];
+    uint32_t pc;
+    uint32_t npc;
+#define REG_O0 8
+#define REG_SP 14
+#define SP_LOC(ctx) (&(ctx)->regs[REG_SP])
+    /* Flags */
+    /* Optional stack contents */
+    uint32_t return_addr;
+    uint32_t param[0];
+};
+
+/* Create a new context in the given stack */
+struct context *
+init_context(uint8_t *stack, uint32_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 /* SPARC32_CONTEXT_H */