linux-kernel - [PATCH v2 14/21] x86/paravirt: Move pv_native

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Message-ID: <20250917145220.31064-15-jgross@suse.com>
Date: Wed, 17 Sep 2025 16:52:13 +0200
From: Juergen Gross <jgross@...e.com>
To: linux-kernel@...r.kernel.org,
	x86@...nel.org,
	virtualization@...ts.linux.dev
Cc: Juergen Gross <jgross@...e.com>,
	Ajay Kaher <ajay.kaher@...adcom.com>,
	Alexey Makhalov <alexey.makhalov@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH v2 14/21] x86/paravirt: Move pv_native_*() prototypes to paravirt.c

The only reason the pv_native_*() prototypes are needed is the complete
definition of those functions via an asm() statement, which makes it
impossible to have those functions as static ones.

Move the prototypes from paravirt_types.h into paravirt.c, which is the
only source referencing the functions.

Signed-off-by: Juergen Gross <jgross@...e.com>
---
V2:
- new patch
---
 arch/x86/include/asm/paravirt_types.h | 7 -------
 arch/x86/kernel/paravirt.c            | 5 +++++
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 148d157e2a4a..1e50f13e6543 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -480,13 +480,6 @@ extern struct paravirt_patch_template pv_ops;
 	__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2),	\
 		     PVOP_CALL_ARG3(arg3), PVOP_CALL_ARG4(arg4))
 
-#ifdef CONFIG_PARAVIRT_XXL
-unsigned long pv_native_save_fl(void);
-void pv_native_irq_disable(void);
-void pv_native_irq_enable(void);
-unsigned long pv_native_read_cr2(void);
-#endif
-
 #endif	/* __ASSEMBLER__ */
 
 #define ALT_NOT_XEN	ALT_NOT(X86_FEATURE_XENPV)
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 4e37db8073f9..5dfbd3f55792 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -45,6 +45,11 @@ void __init default_banner(void)
 }
 
 #ifdef CONFIG_PARAVIRT_XXL
+unsigned long pv_native_save_fl(void);
+void pv_native_irq_disable(void);
+void pv_native_irq_enable(void);
+unsigned long pv_native_read_cr2(void);
+
 DEFINE_ASM_FUNC(_paravirt_ident_64, "mov %rdi, %rax", .text);
 DEFINE_ASM_FUNC(pv_native_save_fl, "pushf; pop %rax", .noinstr.text);
 DEFINE_ASM_FUNC(pv_native_irq_disable, "cli", .noinstr.text);
-- 
2.51.0