x86/paravirt: Make struct paravirt_call_site unconditionally available

For the upcoming call thunk patching it's less ifdeffery when the data
structure is unconditionally available. The code can then be trivially
fenced off with IS_ENABLED().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220915111147.367853167@infradead.org

diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 1be66c1..2851bc2 100644 (file)
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -4,13 +4,13 @@
 /* Various instructions on x86 need to be replaced for
  * para-virtualization: those hooks are defined here. */
 
+#include <asm/paravirt_types.h>
+
 #ifdef CONFIG_PARAVIRT
 #include <asm/pgtable_types.h>
 #include <asm/asm.h>
 #include <asm/nospec-branch.h>
 
-#include <asm/paravirt_types.h>
-
 #ifndef __ASSEMBLY__
 #include <linux/bug.h>
 #include <linux/types.h>

diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index f3d6015..e137d94 100644 (file)
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -2,6 +2,17 @@
 #ifndef _ASM_X86_PARAVIRT_TYPES_H
 #define _ASM_X86_PARAVIRT_TYPES_H
 
+#ifndef __ASSEMBLY__
+/* These all sit in the .parainstructions section to tell us what to patch. */
+struct paravirt_patch_site {
+       u8 *instr;              /* original instructions */
+       u8 type;                /* type of this instruction */
+       u8 len;                 /* length of original instruction */
+};
+#endif
+
+#ifdef CONFIG_PARAVIRT
+
 /* Bitmask of what can be clobbered: usually at least eax. */
 #define CLBR_EAX  (1 << 0)
 #define CLBR_ECX  (1 << 1)
@@ -593,16 +604,9 @@ unsigned long paravirt_ret0(void);
 
 #define paravirt_nop   ((void *)_paravirt_nop)
 
-/* These all sit in the .parainstructions section to tell us what to patch. */
-struct paravirt_patch_site {
-       u8 *instr;              /* original instructions */
-       u8 type;                /* type of this instruction */
-       u8 len;                 /* length of original instruction */
-};
-
 extern struct paravirt_patch_site __parainstructions[],
        __parainstructions_end[];
 
 #endif /* __ASSEMBLY__ */
-
+#endif  /* CONFIG_PARAVIRT */
 #endif /* _ASM_X86_PARAVIRT_TYPES_H */