extern bool epapr_paravirt_enabled;
extern u32 epapr_hypercall_start[];
+#ifdef CONFIG_EPAPR_PARAVIRT
+int __init epapr_paravirt_early_init(void);
+#else
+static inline int epapr_paravirt_early_init(void) { return 0; }
+#endif
+
/*
* We use "uintptr_t" to define a register because it's guaranteed to be a
* 32-bit integer on a 32-bit platform, and a 64-bit integer on a 64-bit
bool epapr_paravirt_enabled;
-static int __init epapr_paravirt_init(void)
+static int __init early_init_dt_scan_epapr(unsigned long node,
+ const char *uname,
+ int depth, void *data)
{
- struct device_node *hyper_node;
const u32 *insts;
- int len, i;
+ unsigned long len;
+ int i;
- hyper_node = of_find_node_by_path("/hypervisor");
- if (!hyper_node)
- return -ENODEV;
-
- insts = of_get_property(hyper_node, "hcall-instructions", &len);
+ insts = of_get_flat_dt_prop(node, "hcall-instructions", &len);
if (!insts)
- return -ENODEV;
+ return 0;
if (len % 4 || len > (4 * 4))
- return -ENODEV;
+ return -1;
for (i = 0; i < (len / 4); i++) {
patch_instruction(epapr_hypercall_start + i, insts[i]);
}
#if !defined(CONFIG_64BIT) || defined(CONFIG_PPC_BOOK3E_64)
- if (of_get_property(hyper_node, "has-idle", NULL))
+ if (of_get_flat_dt_prop(node, "has-idle", NULL))
ppc_md.power_save = epapr_ev_idle;
#endif
epapr_paravirt_enabled = true;
+ return 1;
+}
+
+int __init epapr_paravirt_early_init(void)
+{
+ of_scan_flat_dt(early_init_dt_scan_epapr, NULL);
+
return 0;
}
-early_initcall(epapr_paravirt_init);
#include <asm/serial.h>
#include <asm/udbg.h>
#include <asm/mmu_context.h>
+#include <asm/epapr_hcalls.h>
#include "setup.h"
/* Do some early initialization based on the flat device tree */
early_init_devtree(__va(dt_ptr));
+ epapr_paravirt_early_init();
+
early_init_mmu();
probe_machine();
/* Initialize the MMU context management stuff */
mmu_context_init();
-
}
#include <asm/code-patching.h>
#include <asm/kvm_ppc.h>
#include <asm/hugetlb.h>
+#include <asm/epapr_hcalls.h>
#include "setup.h"
*/
early_init_devtree(__va(dt_ptr));
+ epapr_paravirt_early_init();
+
/* Now we know the logical id of our boot cpu, setup the paca. */
setup_paca(&paca[boot_cpuid]);
fixup_boot_paca();