[PATCH v7 10/19] xen: add hook for AP bootstrap memory reservation

This hook will only be implemented for bare metal, Xen doesn't require
any bootstrap code since APs are started in long mode with paging
enabled.
---
 sys/amd64/amd64/machdep.c   |    6 +++++-
 sys/amd64/include/sysarch.h |    3 +++
 2 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c
index 6bbfe5a..a811a9b 100644
--- a/sys/amd64/amd64/machdep.c
+++ b/sys/amd64/amd64/machdep.c
_at__at_ -186,6 +186,9 _at__at_ struct init_ops init_ops = {
 	.early_delay_init =	i8254_init,
 	.early_delay =		i8254_delay,
 	.parse_memmap =		native_parse_memmap,
+#ifdef SMP
+	.mp_bootaddress =	mp_bootaddress,
+#endif
 };
 
 /*
_at__at_ -1507,7 +1510,8 _at__at_ getmemsize(caddr_t kmdp, u_int64_t first)
 
 #ifdef SMP
 	/* make hole for AP bootstrap code */
-	physmap[1] = mp_bootaddress(physmap[1] / 1024);
+	if (init_ops.mp_bootaddress)
+		physmap[1] = init_ops.mp_bootaddress(physmap[1] / 1024);
 #endif
 
 	/*
diff --git a/sys/amd64/include/sysarch.h b/sys/amd64/include/sysarch.h
index 084223e..77f4b29 100644
--- a/sys/amd64/include/sysarch.h
+++ b/sys/amd64/include/sysarch.h
_at__at_ -16,6 +16,9 _at__at_ struct init_ops {
 	void	(*early_delay_init)(void);
 	void	(*early_delay)(int);
 	void	(*parse_memmap)(caddr_t, vm_paddr_t *, int *);
+#ifdef SMP
+	u_int	(*mp_bootaddress)(u_int);
+#endif
 };
 
 extern struct init_ops init_ops;
-- 
1.7.7.5 (Apple Git-26)