[U-Boot] [PATCH v5 07/10] sandbox: smbios: Update to support sandbox
Alexander Graf
agraf at suse.de
Fri Jun 22 12:44:15 UTC 2018
From: Simon Glass <sjg at chromium.org>
At present this code casts addresses to pointers so cannot be used with
sandbox. Update it to use mapmem instead.
Signed-off-by: Simon Glass <sjg at chromium.org>
[agraf: Adapt efi smbios api usage]
Signed-off-by: Alexander Graf <agraf at suse.de>
---
lib/efi_loader/efi_smbios.c | 18 ++++++++++++++----
lib/smbios.c | 32 ++++++++++++++++++++++++--------
2 files changed, 38 insertions(+), 12 deletions(-)
diff --git a/lib/efi_loader/efi_smbios.c b/lib/efi_loader/efi_smbios.c
index 932f7582ec..469068d34d 100644
--- a/lib/efi_loader/efi_smbios.c
+++ b/lib/efi_loader/efi_smbios.c
@@ -8,6 +8,7 @@
#include <common.h>
#include <efi_loader.h>
#include <inttypes.h>
+#include <mapmem.h>
#include <smbios.h>
static const efi_guid_t smbios_guid = SMBIOS_TABLE_GUID;
@@ -21,6 +22,8 @@ efi_status_t efi_smbios_register(void)
{
/* Map within the low 32 bits, to allow for 32bit SMBIOS tables */
u64 dmi = U32_MAX;
+ u64 dmi_addr;
+ void *dmi_ptr;
efi_status_t ret;
/* Reserve 4kiB page for SMBIOS */
@@ -37,14 +40,21 @@ efi_status_t efi_smbios_register(void)
}
/*
+ * efi_allocate_pages() returns the allocated pointer in dmi,
+ * which we need to convert back into a U-Boot address for
+ * write_smbios_table()
+ */
+ dmi_ptr = (void *)(uintptr_t)dmi;
+ dmi_addr = map_to_sysmem(dmi_ptr);
+
+ /*
* Generate SMBIOS tables - we know that efi_allocate_pages() returns
* a 4k-aligned address, so it is safe to assume that
* write_smbios_table() will write the table at that address.
*/
- assert(!(dmi & 0xf));
- write_smbios_table(dmi);
+ assert(!(dmi_addr & 0xf));
+ write_smbios_table(dmi_addr);
/* And expose them to our EFI payload */
- return efi_install_configuration_table(&smbios_guid,
- (void *)(uintptr_t)dmi);
+ return efi_install_configuration_table(&smbios_guid, dmi_ptr);
}
diff --git a/lib/smbios.c b/lib/smbios.c
index df3d26b071..fc3dabcbc1 100644
--- a/lib/smbios.c
+++ b/lib/smbios.c
@@ -6,6 +6,7 @@
*/
#include <common.h>
+#include <mapmem.h>
#include <smbios.h>
#include <tables_csum.h>
#include <version.h>
@@ -72,9 +73,10 @@ static int smbios_string_table_len(char *start)
static int smbios_write_type0(ulong *current, int handle)
{
- struct smbios_type0 *t = (struct smbios_type0 *)*current;
+ struct smbios_type0 *t;
int len = sizeof(struct smbios_type0);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type0));
fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle);
t->vendor = smbios_add_string(t->eos, "U-Boot");
@@ -101,16 +103,18 @@ static int smbios_write_type0(ulong *current, int handle)
len = t->length + smbios_string_table_len(t->eos);
*current += len;
+ unmap_sysmem(t);
return len;
}
static int smbios_write_type1(ulong *current, int handle)
{
- struct smbios_type1 *t = (struct smbios_type1 *)*current;
+ struct smbios_type1 *t;
int len = sizeof(struct smbios_type1);
char *serial_str = env_get("serial#");
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type1));
fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
@@ -122,15 +126,17 @@ static int smbios_write_type1(ulong *current, int handle)
len = t->length + smbios_string_table_len(t->eos);
*current += len;
+ unmap_sysmem(t);
return len;
}
static int smbios_write_type2(ulong *current, int handle)
{
- struct smbios_type2 *t = (struct smbios_type2 *)*current;
+ struct smbios_type2 *t;
int len = sizeof(struct smbios_type2);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type2));
fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle);
t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
@@ -140,15 +146,17 @@ static int smbios_write_type2(ulong *current, int handle)
len = t->length + smbios_string_table_len(t->eos);
*current += len;
+ unmap_sysmem(t);
return len;
}
static int smbios_write_type3(ulong *current, int handle)
{
- struct smbios_type3 *t = (struct smbios_type3 *)*current;
+ struct smbios_type3 *t;
int len = sizeof(struct smbios_type3);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type3));
fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle);
t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
@@ -160,6 +168,7 @@ static int smbios_write_type3(ulong *current, int handle)
len = t->length + smbios_string_table_len(t->eos);
*current += len;
+ unmap_sysmem(t);
return len;
}
@@ -198,9 +207,10 @@ static void smbios_write_type4_dm(struct smbios_type4 *t)
static int smbios_write_type4(ulong *current, int handle)
{
- struct smbios_type4 *t = (struct smbios_type4 *)*current;
+ struct smbios_type4 *t;
int len = sizeof(struct smbios_type4);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type4));
fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle);
t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL;
@@ -214,32 +224,37 @@ static int smbios_write_type4(ulong *current, int handle)
len = t->length + smbios_string_table_len(t->eos);
*current += len;
+ unmap_sysmem(t);
return len;
}
static int smbios_write_type32(ulong *current, int handle)
{
- struct smbios_type32 *t = (struct smbios_type32 *)*current;
+ struct smbios_type32 *t;
int len = sizeof(struct smbios_type32);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type32));
fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle);
*current += len;
+ unmap_sysmem(t);
return len;
}
static int smbios_write_type127(ulong *current, int handle)
{
- struct smbios_type127 *t = (struct smbios_type127 *)*current;
+ struct smbios_type127 *t;
int len = sizeof(struct smbios_type127);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type127));
fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle);
*current += len;
+ unmap_sysmem(t);
return len;
}
@@ -268,7 +283,7 @@ ulong write_smbios_table(ulong addr)
/* 16 byte align the table address */
addr = ALIGN(addr, 16);
- se = (struct smbios_entry *)(uintptr_t)addr;
+ se = map_sysmem(addr, sizeof(struct smbios_entry));
memset(se, 0, sizeof(struct smbios_entry));
addr += sizeof(struct smbios_entry);
@@ -297,6 +312,7 @@ ulong write_smbios_table(ulong addr)
isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET;
se->intermediate_checksum = table_compute_checksum(istart, isize);
se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry));
+ unmap_sysmem(se);
return addr;
}
--
2.12.3
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