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-rw-r--r--arch/x86/include/asm/efi.h8
-rw-r--r--arch/x86/platform/efi/efi.c30
-rw-r--r--arch/x86/platform/efi/efi_32.c21
-rw-r--r--arch/x86/platform/efi/efi_64.c56
4 files changed, 58 insertions, 57 deletions
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 09c3fc468793..e29e5dc0b750 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -61,8 +61,6 @@ extern asmlinkage unsigned long efi_call_phys(void *, ...);
extern asmlinkage u64 efi_call(void *fp, ...);
-#define efi_call_phys(f, args...) efi_call((f), args)
-
/*
* struct efi_scratch - Scratch space used while switching to/from efi_mm
* @phys_stack: stack used during EFI Mixed Mode
@@ -115,8 +113,6 @@ extern void __iomem *__init efi_ioremap(unsigned long addr, unsigned long size,
extern struct efi_scratch efi_scratch;
extern void __init efi_set_executable(efi_memory_desc_t *md, bool executable);
extern int __init efi_memblock_x86_reserve_range(void);
-extern pgd_t * __init efi_call_phys_prolog(void);
-extern void __init efi_call_phys_epilog(pgd_t *save_pgd);
extern void __init efi_print_memmap(void);
extern void __init efi_memory_uc(u64 addr, unsigned long size);
extern void __init efi_map_region(efi_memory_desc_t *md);
@@ -177,6 +173,10 @@ extern efi_status_t efi_thunk_set_virtual_address_map(
unsigned long descriptor_size,
u32 descriptor_version,
efi_memory_desc_t *virtual_map);
+efi_status_t efi_set_virtual_address_map(unsigned long memory_map_size,
+ unsigned long descriptor_size,
+ u32 descriptor_version,
+ efi_memory_desc_t *virtual_map);
/* arch specific definitions used by the stub code */
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 3ce32c31bb61..50f8123e658a 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -54,7 +54,7 @@
#include <asm/x86_init.h>
#include <asm/uv/uv.h>
-static struct efi efi_phys __initdata;
+struct efi efi_phys __initdata;
static efi_system_table_t efi_systab __initdata;
static efi_config_table_type_t arch_tables[] __initdata = {
@@ -97,32 +97,6 @@ static int __init setup_add_efi_memmap(char *arg)
}
early_param("add_efi_memmap", setup_add_efi_memmap);
-static efi_status_t __init phys_efi_set_virtual_address_map(
- unsigned long memory_map_size,
- unsigned long descriptor_size,
- u32 descriptor_version,
- efi_memory_desc_t *virtual_map)
-{
- efi_status_t status;
- unsigned long flags;
- pgd_t *save_pgd;
-
- save_pgd = efi_call_phys_prolog();
- if (!save_pgd)
- return EFI_ABORTED;
-
- /* Disable interrupts around EFI calls: */
- local_irq_save(flags);
- status = efi_call_phys(efi_phys.set_virtual_address_map,
- memory_map_size, descriptor_size,
- descriptor_version, virtual_map);
- local_irq_restore(flags);
-
- efi_call_phys_epilog(save_pgd);
-
- return status;
-}
-
void __init efi_find_mirror(void)
{
efi_memory_desc_t *md;
@@ -1042,7 +1016,7 @@ static void __init __efi_enter_virtual_mode(void)
efi_sync_low_kernel_mappings();
if (!efi_is_mixed()) {
- status = phys_efi_set_virtual_address_map(
+ status = efi_set_virtual_address_map(
efi.memmap.desc_size * count,
efi.memmap.desc_size,
efi.memmap.desc_version,
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 9959657127f4..185950ade0e9 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -66,9 +66,16 @@ void __init efi_map_region(efi_memory_desc_t *md)
void __init efi_map_region_fixed(efi_memory_desc_t *md) {}
void __init parse_efi_setup(u64 phys_addr, u32 data_len) {}
-pgd_t * __init efi_call_phys_prolog(void)
+extern struct efi efi_phys;
+
+efi_status_t __init efi_set_virtual_address_map(unsigned long memory_map_size,
+ unsigned long descriptor_size,
+ u32 descriptor_version,
+ efi_memory_desc_t *virtual_map)
{
struct desc_ptr gdt_descr;
+ efi_status_t status;
+ unsigned long flags;
pgd_t *save_pgd;
/* Current pgd is swapper_pg_dir, we'll restore it later: */
@@ -80,14 +87,18 @@ pgd_t * __init efi_call_phys_prolog(void)
gdt_descr.size = GDT_SIZE - 1;
load_gdt(&gdt_descr);
- return save_pgd;
-}
+ /* Disable interrupts around EFI calls: */
+ local_irq_save(flags);
+ status = efi_call_phys(efi_phys.set_virtual_address_map,
+ memory_map_size, descriptor_size,
+ descriptor_version, virtual_map);
+ local_irq_restore(flags);
-void __init efi_call_phys_epilog(pgd_t *save_pgd)
-{
load_fixmap_gdt(0);
load_cr3(save_pgd);
__flush_tlb_all();
+
+ return status;
}
void __init efi_runtime_update_mappings(void)
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index a72bbabbc595..a7f11d1ff7c4 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -72,9 +72,9 @@ static void __init early_code_mapping_set_exec(int executable)
}
}
-void __init efi_old_memmap_phys_epilog(pgd_t *save_pgd);
+static void __init efi_old_memmap_phys_epilog(pgd_t *save_pgd);
-pgd_t * __init efi_old_memmap_phys_prolog(void)
+static pgd_t * __init efi_old_memmap_phys_prolog(void)
{
unsigned long vaddr, addr_pgd, addr_p4d, addr_pud;
pgd_t *save_pgd, *pgd_k, *pgd_efi;
@@ -144,7 +144,7 @@ out:
return NULL;
}
-void __init efi_old_memmap_phys_epilog(pgd_t *save_pgd)
+static void __init efi_old_memmap_phys_epilog(pgd_t *save_pgd)
{
/*
* After the lock is released, the original page table is restored.
@@ -185,23 +185,6 @@ void __init efi_old_memmap_phys_epilog(pgd_t *save_pgd)
early_code_mapping_set_exec(0);
}
-pgd_t * __init efi_call_phys_prolog(void)
-{
- if (efi_enabled(EFI_OLD_MEMMAP))
- return efi_old_memmap_phys_prolog();
-
- efi_switch_mm(&efi_mm);
- return efi_mm.pgd;
-}
-
-void __init efi_call_phys_epilog(pgd_t *save_pgd)
-{
- if (efi_enabled(EFI_OLD_MEMMAP))
- efi_old_memmap_phys_epilog(save_pgd);
- else
- efi_switch_mm(efi_scratch.prev_mm);
-}
-
EXPORT_SYMBOL_GPL(efi_mm);
/*
@@ -1018,3 +1001,36 @@ void efi_thunk_runtime_setup(void)
efi.query_capsule_caps = efi_thunk_query_capsule_caps;
}
#endif /* CONFIG_EFI_MIXED */
+
+efi_status_t __init efi_set_virtual_address_map(unsigned long memory_map_size,
+ unsigned long descriptor_size,
+ u32 descriptor_version,
+ efi_memory_desc_t *virtual_map)
+{
+ efi_status_t status;
+ unsigned long flags;
+ pgd_t *save_pgd = NULL;
+
+ if (efi_enabled(EFI_OLD_MEMMAP)) {
+ save_pgd = efi_old_memmap_phys_prolog();
+ if (!save_pgd)
+ return EFI_ABORTED;
+ } else {
+ efi_switch_mm(&efi_mm);
+ }
+
+ /* Disable interrupts around EFI calls: */
+ local_irq_save(flags);
+ status = efi_call(efi.systab->runtime->set_virtual_address_map,
+ memory_map_size, descriptor_size,
+ descriptor_version, virtual_map);
+ local_irq_restore(flags);
+
+
+ if (save_pgd)
+ efi_old_memmap_phys_epilog(save_pgd);
+ else
+ efi_switch_mm(efi_scratch.prev_mm);
+
+ return status;
+}
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-22 07:18:01 +0300