It turns out a global variable is the only straightforward way to

communicate the kernel's physical load address from where it's known in
initarm() into cpu_mp_start() which is called from non-arm code and
takes no parameters.

This adds the global variable and ensures that all the various copies
of initarm() set it.  It uses the variable in cpu_mp_start(), eliminating
the last uses of KERNPHYSADDR outside of locore.S (where we can now
calculate it instead of relying on the constant).

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/arm/at91/at91_machdep.c b/sys/arm/at91/at91_machdep.c
index a6fef8b..c25e1ab 100644
--- a/sys/arm/at91/at91_machdep.c
+++ b/sys/arm/at91/at91_machdep.c
@@ -461,6 +461,7 @@ initarm(struct arm_boot_params *abp)
 	vm_offset_t lastaddr;
 
 	lastaddr = parse_boot_param(abp);
+	arm_physmem_kernaddr = abp->abp_physaddr;
 	set_cpufuncs();
 	pcpu0_init();