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Diffstat (limited to 'arch/x86/include/asm/efi.h')
-rw-r--r--arch/x86/include/asm/efi.h28
1 files changed, 21 insertions, 7 deletions
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 6e8fdf5ad11..fd13815fe85 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -69,23 +69,37 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
efi_call6((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
(u64)(a4), (u64)(a5), (u64)(a6))
+extern unsigned long efi_call_virt_prelog(void);
+extern void efi_call_virt_epilog(unsigned long);
+
+#define efi_callx(x, func, ...) \
+ ({ \
+ efi_status_t __status; \
+ unsigned long __pgd; \
+ \
+ __pgd = efi_call_virt_prelog(); \
+ __status = efi_call##x(func, __VA_ARGS__); \
+ efi_call_virt_epilog(__pgd); \
+ __status; \
+ })
+
#define efi_call_virt0(f) \
- efi_call0((void *)(efi.systab->runtime->f))
+ efi_callx(0, (void *)(efi.systab->runtime->f))
#define efi_call_virt1(f, a1) \
- efi_call1((void *)(efi.systab->runtime->f), (u64)(a1))
+ efi_callx(1, (void *)(efi.systab->runtime->f), (u64)(a1))
#define efi_call_virt2(f, a1, a2) \
- efi_call2((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2))
+ efi_callx(2, (void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2))
#define efi_call_virt3(f, a1, a2, a3) \
- efi_call3((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
+ efi_callx(3, (void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
(u64)(a3))
#define efi_call_virt4(f, a1, a2, a3, a4) \
- efi_call4((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
+ efi_callx(4, (void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
(u64)(a3), (u64)(a4))
#define efi_call_virt5(f, a1, a2, a3, a4, a5) \
- efi_call5((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
+ efi_callx(5, (void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
(u64)(a3), (u64)(a4), (u64)(a5))
#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
- efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
+ efi_callx(6, (void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
(u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,