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-rw-r--r--arch/x86/include/asm/efi.h32
-rw-r--r--arch/x86/platform/efi/efi_32.c12
-rw-r--r--arch/x86/platform/efi/efi_64.c19
3 files changed, 31 insertions, 32 deletions
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index b0994ae3bc23..c4555b269a1b 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -91,19 +91,6 @@ static inline void efi_fpu_end(void)
#ifdef CONFIG_X86_32
#define EFI_X86_KERNEL_ALLOC_LIMIT (SZ_512M - 1)
-
-#define arch_efi_call_virt_setup() \
-({ \
- efi_fpu_begin(); \
- firmware_restrict_branch_speculation_start(); \
-})
-
-#define arch_efi_call_virt_teardown() \
-({ \
- firmware_restrict_branch_speculation_end(); \
- efi_fpu_end(); \
-})
-
#else /* !CONFIG_X86_32 */
#define EFI_X86_KERNEL_ALLOC_LIMIT EFI_ALLOC_LIMIT
@@ -116,14 +103,6 @@ extern bool efi_disable_ibt_for_runtime;
__efi_call(__VA_ARGS__); \
})
-#define arch_efi_call_virt_setup() \
-({ \
- efi_sync_low_kernel_mappings(); \
- efi_fpu_begin(); \
- firmware_restrict_branch_speculation_start(); \
- efi_enter_mm(); \
-})
-
#undef arch_efi_call_virt
#define arch_efi_call_virt(p, f, args...) ({ \
u64 ret, ibt = ibt_save(efi_disable_ibt_for_runtime); \
@@ -132,13 +111,6 @@ extern bool efi_disable_ibt_for_runtime;
ret; \
})
-#define arch_efi_call_virt_teardown() \
-({ \
- efi_leave_mm(); \
- firmware_restrict_branch_speculation_end(); \
- efi_fpu_end(); \
-})
-
#ifdef CONFIG_KASAN
/*
* CONFIG_KASAN may redefine memset to __memset. __memset function is present
@@ -168,8 +140,8 @@ extern void efi_delete_dummy_variable(void);
extern void efi_crash_gracefully_on_page_fault(unsigned long phys_addr);
extern void efi_free_boot_services(void);
-void efi_enter_mm(void);
-void efi_leave_mm(void);
+void arch_efi_call_virt_setup(void);
+void arch_efi_call_virt_teardown(void);
/* kexec external ABI */
struct efi_setup_data {
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index e06a199423c0..b2cc7b4552a1 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -140,3 +140,15 @@ void __init efi_runtime_update_mappings(void)
}
}
}
+
+void arch_efi_call_virt_setup(void)
+{
+ efi_fpu_begin();
+ firmware_restrict_branch_speculation_start();
+}
+
+void arch_efi_call_virt_teardown(void)
+{
+ firmware_restrict_branch_speculation_end();
+ efi_fpu_end();
+}
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 77f7ac3668cb..91d31ac422d6 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -474,19 +474,34 @@ void __init efi_dump_pagetable(void)
* can not change under us.
* It should be ensured that there are no concurrent calls to this function.
*/
-void efi_enter_mm(void)
+static void efi_enter_mm(void)
{
efi_prev_mm = current->active_mm;
current->active_mm = &efi_mm;
switch_mm(efi_prev_mm, &efi_mm, NULL);
}
-void efi_leave_mm(void)
+static void efi_leave_mm(void)
{
current->active_mm = efi_prev_mm;
switch_mm(&efi_mm, efi_prev_mm, NULL);
}
+void arch_efi_call_virt_setup(void)
+{
+ efi_sync_low_kernel_mappings();
+ efi_fpu_begin();
+ firmware_restrict_branch_speculation_start();
+ efi_enter_mm();
+}
+
+void arch_efi_call_virt_teardown(void)
+{
+ efi_leave_mm();
+ firmware_restrict_branch_speculation_end();
+ efi_fpu_end();
+}
+
static DEFINE_SPINLOCK(efi_runtime_lock);
/*