---
sys/amd64/amd64/machdep.c | 50 ++
sys/amd64/include/pc/bios.h |2 +
sys/amd64/include/sysarch.h |1 +
sys/x86/xen/pv.c| 26 ++
4 files changed, 60 insertions(+), 19 deletions(-)
diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c
index a2dcb90..6bbfe5a 100644
--- a/sys/amd64/amd64/machdep.c
+++ b/sys/amd64/amd64/machdep.c
@@ -177,11 +177,15 @@ SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup,
NULL);
/* Preload data parse function */
static caddr_t native_parse_preload_data(u_int64_t);
+/* Native function to fetch and parse the e820 map */
+static void native_parse_memmap(caddr_t, vm_paddr_t *, int *);
+
/* Default init_ops implementation. */
struct init_ops init_ops = {
.parse_preload_data = native_parse_preload_data,
.early_delay_init = i8254_init,
.early_delay = i8254_delay,
+ .parse_memmap = native_parse_memmap,
};
/*
@@ -1418,21 +1422,12 @@ add_physmap_entry(uint64_t base, uint64_t length,
vm_paddr_t *physmap,
return (1);
}
-static void
-add_smap_entries(struct bios_smap *smapbase, vm_paddr_t *physmap,
-int *physmap_idx)
+void
+bios_add_smap_entries(struct bios_smap *smapbase, u_int32_t smapsize,
+ vm_paddr_t *physmap, int *physmap_idx)
{
struct bios_smap *smap, *smapend;
- u_int32_t smapsize;
- /*
-* Memory map from INT 15:E820.
-*
-* subr_module.c says:
-* Consumer may safely assume that size value precedes data.
-* ie: an int32_t immediately precedes smap.
-*/
- smapsize = *((u_int32_t *)smapbase - 1);
smapend = (struct bios_smap *)((uintptr_t)smapbase + smapsize);
for (smap = smapbase; smap smapend; smap++) {
@@ -1449,6 +1444,29 @@ add_smap_entries(struct bios_smap *smapbase, vm_paddr_t
*physmap,
}
}
+static void
+native_parse_memmap(caddr_t kmdp, vm_paddr_t *physmap, int *physmap_idx)
+{
+ struct bios_smap *smap;
+ u_int32_t size;
+
+ /*
+* Memory map from INT 15:E820.
+*
+* subr_module.c says:
+* Consumer may safely assume that size value precedes data.
+* ie: an int32_t immediately precedes smap.
+*/
+
+ smap = (struct bios_smap *)preload_search_info(kmdp,
+ MODINFO_METADATA | MODINFOMD_SMAP);
+ if (smap == NULL)
+ panic(No BIOS smap info from loader!);
+ size = *((u_int32_t *)smap - 1);
+
+ bios_add_smap_entries(smap, size, physmap, physmap_idx);
+}
+
/*
* Populate the (physmap) array with base/bound pairs describing the
* available physical memory in the system, then test this memory and
@@ -1466,19 +1484,13 @@ getmemsize(caddr_t kmdp, u_int64_t first)
vm_paddr_t pa, physmap[PHYSMAP_SIZE];
u_long physmem_start, physmem_tunable, memtest;
pt_entry_t *pte;
- struct bios_smap *smapbase;
quad_t dcons_addr, dcons_size;
bzero(physmap, sizeof(physmap));
basemem = 0;
physmap_idx = 0;
- smapbase = (struct bios_smap *)preload_search_info(kmdp,
- MODINFO_METADATA | MODINFOMD_SMAP);
- if (smapbase == NULL)
- panic(No BIOS smap info from loader!);
-
- add_smap_entries(smapbase, physmap, physmap_idx);
+ init_ops.parse_memmap(kmdp, physmap, physmap_idx);
/*
* Find the 'base memory' segment for SMP
diff --git a/sys/amd64/include/pc/bios.h b/sys/amd64/include/pc/bios.h
index e7d568e..92d4265 100644
--- a/sys/amd64/include/pc/bios.h
+++ b/sys/amd64/include/pc/bios.h
@@ -106,6 +106,8 @@ struct bios_oem {
intbios_oem_strings(struct bios_oem *oem, u_char *buffer, size_t maxlen);
uint32_t bios_sigsearch(uint32_t start, u_char *sig, int siglen, int paralen,
int sigofs);
+void bios_add_smap_entries(struct bios_smap *smapbase, u_int32_t smapsize,
+ vm_paddr_t *physmap, int *physmap_idx);
#endif
#endif /* _MACHINE_PC_BIOS_H_ */
diff --git a/sys/amd64/include/sysarch.h b/sys/amd64/include/sysarch.h
index 60fa635..084223e 100644
--- a/sys/amd64/include/sysarch.h
+++ b/sys/amd64/include/sysarch.h
@@ -15,6 +15,7 @@ struct init_ops {
caddr_t (*parse_preload_data)(u_int64_t);
void(*early_delay_init)(void);
void(*early_delay)(int);
+ void(*parse_memmap)(caddr_t, vm_paddr_t *, int *);
};
extern struct init_ops init_ops;
diff --git a/sys/x86/xen/pv.c b/sys/x86/xen/pv.c
index f8d8cfa..db576e0 100644
--- a/sys/x86/xen/pv.c
+++ b/sys/x86/xen/pv.c
@@ -37,12 +37,17 @@ __FBSDID($FreeBSD$);
#include machine/sysarch.h
#include machine/clock.h
+#include machine/pc/bios.h
#include xen/xen-os.h
#include xen/pv.h
+#include xen/hypervisor.h
+
+#define MAX_E820_ENTRIES 128
/*--- Forward Declarations
---*/
static caddr_t
