diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c
index 4c9e61457b2f695ccd172384feb8ac94e4a76eea..cc6ac7d128aa1a70003a96de88ab39a548fbcf3d 100644
--- a/arch/arc/kernel/devtree.c
+++ b/arch/arc/kernel/devtree.c
@@ -62,7 +62,7 @@ const struct machine_desc * __init setup_machine_fdt(void *dt)
const struct machine_desc *mdesc;
unsigned long dt_root;
- if (!early_init_dt_scan(dt))
+ if (!early_init_dt_scan(dt, __pa(dt)))
return NULL;
mdesc = of_flat_dt_match_machine(NULL, arch_get_next_mach);
diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index fdb74e64206a8ae790826747ba9ac02908de9648..3b78966e750a2df2064c9d19f828b4559480c787 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -200,7 +200,7 @@ const struct machine_desc * __init setup_machine_fdt(void *dt_virt)
mdesc_best = &__mach_desc_GENERIC_DT;
- if (!dt_virt || !early_init_dt_verify(dt_virt))
+ if (!dt_virt || !early_init_dt_verify(dt_virt, __pa(dt_virt)))
return NULL;
mdesc = of_flat_dt_match_machine(mdesc_best, arch_get_next_mach);
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index b22d28ec80284b1c4f593a4ffc51ed2b7012f7a3..87f61fd6783c209a7a6ca986eb1fdf24a3ece735 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -175,7 +175,11 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
if (dt_virt)
memblock_reserve(dt_phys, size);
- if (!dt_virt || !early_init_dt_scan(dt_virt)) {
+ /*
+ * dt_virt is a fixmap address, hence __pa(dt_virt) can't be used.
+ * Pass dt_phys directly.
+ */
+ if (!early_init_dt_scan(dt_virt, dt_phys)) {
pr_crit("\n"
"Error: invalid device tree blob at physical address %pa (virtual address 0x%px)\n"
"The dtb must be 8-byte aligned and must not exceed 2 MB in size\n"
diff --git a/arch/csky/kernel/setup.c b/arch/csky/kernel/setup.c
index 51012e90780d6b15583dd1f16d3e84f09ca85ecf..fe715b707fd0a4a721ecbedde0624bc13033a17e 100644
--- a/arch/csky/kernel/setup.c
+++ b/arch/csky/kernel/setup.c
@@ -112,9 +112,9 @@ asmlinkage __visible void __init csky_start(unsigned int unused,
pre_trap_init();
if (dtb_start == NULL)
- early_init_dt_scan(__dtb_start);
+ early_init_dt_scan(__dtb_start, __pa(dtb_start));
else
- early_init_dt_scan(dtb_start);
+ early_init_dt_scan(dtb_start, __pa(dtb_start));
start_kernel();
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index cbd3c09a93c14c90f4089077eaff3bc0cd203585..56934fe58170e0d8906834d121b2e7e89d249d0a 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -291,7 +291,7 @@ static void __init fdt_setup(void)
if (!fdt_pointer || fdt_check_header(fdt_pointer))
return;
- early_init_dt_scan(fdt_pointer);
+ early_init_dt_scan(fdt_pointer, __pa(fdt_pointer));
early_init_fdt_reserve_self();
max_low_pfn = PFN_PHYS(memblock_end_of_DRAM());
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index e424c796e297c54ae60d73e4854fb78cd626708e..76ac4cfdfb42ce42a722ccbecdd0d94f8d760645 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -18,7 +18,7 @@ void __init early_init_devtree(void *params)
{
pr_debug(" -> early_init_devtree(%p)\n", params);
- early_init_dt_scan(params);
+ early_init_dt_scan(params, __pa(params));
if (!strlen(boot_command_line))
strscpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 6062e6fa589a87158a1ed1d09eff6eb9152e0e19..4fd6da0a06c372a59f741cbbda3ad5b1ca856905 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -41,7 +41,7 @@ char *mips_get_machine_name(void)
void __init __dt_setup_arch(void *bph)
{
- if (!early_init_dt_scan(bph))
+ if (!early_init_dt_scan(bph, __pa(bph)))
return;
mips_set_machine_name(of_flat_dt_get_machine_name());
diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c
index 7eeeaf1ff95d26e6b3256f3cf20e603d312beef2..cda7983e7c18d421535253a2406a523f6d1166e7 100644
--- a/arch/mips/kernel/relocate.c
+++ b/arch/mips/kernel/relocate.c
@@ -337,7 +337,7 @@ void *__init relocate_kernel(void)
#if defined(CONFIG_USE_OF)
/* Deal with the device tree */
fdt = plat_get_fdt();
- early_init_dt_scan(fdt);
+ early_init_dt_scan(fdt, __pa(fdt));
if (boot_command_line[0]) {
/* Boot command line was passed in device tree */
strscpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
diff --git a/arch/nios2/kernel/prom.c b/arch/nios2/kernel/prom.c
index 9a8393e6b4a85ecdb22691720c6a266eb5d7aa2d..db049249766fc22653f8243d85ac60923815c0bf 100644
--- a/arch/nios2/kernel/prom.c
+++ b/arch/nios2/kernel/prom.c
@@ -27,7 +27,7 @@ void __init early_init_devtree(void *params)
if (be32_to_cpup((__be32 *)CONFIG_NIOS2_DTB_PHYS_ADDR) ==
OF_DT_HEADER) {
params = (void *)CONFIG_NIOS2_DTB_PHYS_ADDR;
- early_init_dt_scan(params);
+ early_init_dt_scan(params, __pa(params));
return;
}
#endif
@@ -37,5 +37,5 @@ void __init early_init_devtree(void *params)
params = (void *)__dtb_start;
#endif
- early_init_dt_scan(params);
+ early_init_dt_scan(params, __pa(params));
}
diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index 19e6008bf114c625ca25ff4eb31de564eed30f20..e424e9bd12a793107b7e9c4eaad70851165a959a 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -22,6 +22,6 @@
void __init early_init_devtree(void *params)
{
- early_init_dt_scan(params);
+ early_init_dt_scan(params, __pa(params));
memblock_allow_resize();
}
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index af4263594eb2c93c5b1d1240acf4aae161c24edd..1bee15c013e75f195885df664b61f469364e087d 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -867,7 +867,7 @@ bool __init dt_cpu_ftrs_init(void *fdt)
using_dt_cpu_ftrs = false;
/* Setup and verify the FDT, if it fails we just bail */
- if (!early_init_dt_verify(fdt))
+ if (!early_init_dt_verify(fdt, __pa(fdt)))
return false;
if (!of_scan_flat_dt(fdt_find_cpu_features, NULL))
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 0be07ed407c70352ffd490f619a02f24984be717..88cbe432cad59d042fcb05c5f00a6d6d09e0df4c 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -791,7 +791,7 @@ void __init early_init_devtree(void *params)
DBG(" -> early_init_devtree(%px)\n", params);
/* Too early to BUG_ON(), do it by hand */
- if (!early_init_dt_verify(params))
+ if (!early_init_dt_verify(params, __pa(params)))
panic("BUG: Failed verifying flat device tree, bad version?");
of_scan_flat_dt(early_init_dt_scan_model, NULL);
diff --git a/arch/powerpc/platforms/pseries/plpks.c b/arch/powerpc/platforms/pseries/plpks.c
index 4a595493d28ae3b808db8394e02c2b85b600b417..b1667ed05f9882607213d7d0f9e4383d31de719d 100644
--- a/arch/powerpc/platforms/pseries/plpks.c
+++ b/arch/powerpc/platforms/pseries/plpks.c
@@ -683,7 +683,7 @@ void __init plpks_early_init_devtree(void)
out:
fdt_nop_property(fdt, chosen_node, "ibm,plpks-pw");
// Since we've cleared the password, we must update the FDT checksum
- early_init_dt_verify(fdt);
+ early_init_dt_verify(fdt, __pa(fdt));
}
static __init int pseries_plpks_init(void)
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index a2cde65b69e950d929e3f9a5165d5f72d307e850..26c886db4fb3d1d3837c5081a4e1dfa8666a6bcc 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -227,7 +227,7 @@ static void __init init_resources(void)
static void __init parse_dtb(void)
{
/* Early scan of device tree from init memory */
- if (early_init_dt_scan(dtb_early_va)) {
+ if (early_init_dt_scan(dtb_early_va, __pa(dtb_early_va))) {
const char *name = of_flat_dt_get_machine_name();
if (name) {
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 620e5cf8ae1e748db41e28a103db678b1bb60c69..f2b6f16a46b85daa328f3af2b532e537705bfe47 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -255,7 +255,7 @@ void __ref sh_fdt_init(phys_addr_t dt_phys)
dt_virt = phys_to_virt(dt_phys);
#endif
- if (!dt_virt || !early_init_dt_scan(dt_virt)) {
+ if (!dt_virt || !early_init_dt_scan(dt_virt, __pa(dt_virt))) {
pr_crit("Error: invalid device tree blob"
" at physical address %p\n", (void *)dt_phys);
diff --git a/arch/um/kernel/dtb.c b/arch/um/kernel/dtb.c
index 4954188a6a0908363654d541f6a2faeb36bbe651..8d78ced9e08f6de945a0e97eba6a41525e136794 100644
--- a/arch/um/kernel/dtb.c
+++ b/arch/um/kernel/dtb.c
@@ -17,7 +17,7 @@ void uml_dtb_init(void)
area = uml_load_file(dtb, &size);
if (area) {
- if (!early_init_dt_scan(area)) {
+ if (!early_init_dt_scan(area, __pa(area))) {
pr_err("invalid DTB %s\n", dtb);
memblock_free(area, size);
return;
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 64280879c68c025c249c250a6077ae3ad753e0b0..59d23cdf4ed0fa1044fdb208dd9c3e4548f4e686 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -305,7 +305,7 @@ void __init x86_flattree_get_config(void)
map_len = size;
}
- early_init_dt_verify(dt);
+ early_init_dt_verify(dt, __pa(dt));
}
unflatten_and_copy_device_tree();
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index bdec4a773af098f3533c124f6d2a20cd5be731be..e51f2060e830893a7fe7f6efa6ac6584df4dfa5d 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -216,7 +216,7 @@ static int __init xtensa_dt_io_area(unsigned long node, const char *uname,
void __init early_init_devtree(void *params)
{
- early_init_dt_scan(params);
+ early_init_dt_scan(params, __pa(params));
of_scan_flat_dt(xtensa_dt_io_area, NULL);
if (!command_line[0])
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 4d528c10df3a9a7d8ab805693de48ec93cc30285..546e76ac407cfd7e8ade281e32349c8cd455eb9a 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -457,6 +457,7 @@ int __initdata dt_root_addr_cells;
int __initdata dt_root_size_cells;
void *initial_boot_params __ro_after_init;
+phys_addr_t initial_boot_params_pa __ro_after_init;
#ifdef CONFIG_OF_EARLY_FLATTREE
@@ -1136,17 +1137,18 @@ static void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
return ptr;
}
-bool __init early_init_dt_verify(void *params)
+bool __init early_init_dt_verify(void *dt_virt, phys_addr_t dt_phys)
{
- if (!params)
+ if (!dt_virt)
return false;
/* check device tree validity */
- if (fdt_check_header(params))
+ if (fdt_check_header(dt_virt))
return false;
/* Setup flat device-tree pointer */
- initial_boot_params = params;
+ initial_boot_params = dt_virt;
+ initial_boot_params_pa = dt_phys;
of_fdt_crc32 = crc32_be(~0, initial_boot_params,
fdt_totalsize(initial_boot_params));
@@ -1173,11 +1175,11 @@ void __init early_init_dt_scan_nodes(void)
early_init_dt_check_for_usable_mem_range();
}
-bool __init early_init_dt_scan(void *params)
+bool __init early_init_dt_scan(void *dt_virt, phys_addr_t dt_phys)
{
bool status;
- status = early_init_dt_verify(params);
+ status = early_init_dt_verify(dt_virt, dt_phys);
if (!status)
return false;
diff --git a/drivers/of/kexec.c b/drivers/of/kexec.c
index 9ccde2fd77cbf5117b70af2c815b317e87f2c363..5b924597a4debee76589cf7905ed867422f7dfdc 100644
--- a/drivers/of/kexec.c
+++ b/drivers/of/kexec.c
@@ -301,7 +301,7 @@ void *of_kexec_alloc_and_setup_fdt(const struct kimage *image,
}
/* Remove memory reservation for the current device tree. */
- ret = fdt_find_and_del_mem_rsv(fdt, __pa(initial_boot_params),
+ ret = fdt_find_and_del_mem_rsv(fdt, initial_boot_params_pa,
fdt_totalsize(initial_boot_params));
if (ret == -EINVAL) {
pr_err("Error removing memory reservation.\n");
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index d69ad5bb1eb1e64d3a13927c16767bc6716fd7b2..b8d6c0c208760ab17372b4c3c32dbb2124f5184f 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -31,6 +31,7 @@ extern void *of_fdt_unflatten_tree(const unsigned long *blob,
extern int __initdata dt_root_addr_cells;
extern int __initdata dt_root_size_cells;
extern void *initial_boot_params;
+extern phys_addr_t initial_boot_params_pa;
extern char __dtb_start[];
extern char __dtb_end[];
@@ -70,8 +71,8 @@ extern u64 dt_mem_next_cell(int s, const __be32 **cellp);
/* Early flat tree scan hooks */
extern int early_init_dt_scan_root(void);
-extern bool early_init_dt_scan(void *params);
-extern bool early_init_dt_verify(void *params);
+extern bool early_init_dt_scan(void *dt_virt, phys_addr_t dt_phys);
+extern bool early_init_dt_verify(void *dt_virt, phys_addr_t dt_phys);
extern void early_init_dt_scan_nodes(void);
extern const char *of_flat_dt_get_machine_name(void);