[PATCH v2 08/21] arm64/paravirt: Use common code for paravirt_steal_clock()
From: Juergen Gross <jgross@suse.com>
Date: 2025-09-17 14:53:14
Also in:
lkml, virtualization
Subsystem:
arm64 port (aarch64 architecture), paravirt_ops interface, the rest · Maintainers:
Catalin Marinas, Will Deacon, Juergen Gross, Linus Torvalds
Remove the arch specific variant of paravirt_steal_clock() and use the common one instead. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> --- arch/arm64/Kconfig | 1 + arch/arm64/include/asm/paravirt.h | 10 ---------- arch/arm64/kernel/paravirt.c | 7 ------- 3 files changed, 1 insertion(+), 17 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index e9bbfacc35a6..08abcd353cf4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig@@ -1582,6 +1582,7 @@ config CC_HAVE_SHADOW_CALL_STACK config PARAVIRT bool "Enable paravirtualization code" + select HAVE_PV_STEAL_CLOCK_GEN help This changes the kernel so it can modify itself when it is run under a hypervisor, potentially improving performance significantly
diff --git a/arch/arm64/include/asm/paravirt.h b/arch/arm64/include/asm/paravirt.h
index c9f7590baacb..cb037e742372 100644
--- a/arch/arm64/include/asm/paravirt.h
+++ b/arch/arm64/include/asm/paravirt.h@@ -3,16 +3,6 @@ #define _ASM_ARM64_PARAVIRT_H #ifdef CONFIG_PARAVIRT -#include <linux/static_call_types.h> - -u64 dummy_steal_clock(int cpu); - -DECLARE_STATIC_CALL(pv_steal_clock, dummy_steal_clock); - -static inline u64 paravirt_steal_clock(int cpu) -{ - return static_call(pv_steal_clock)(cpu); -} int __init pv_time_init(void);
diff --git a/arch/arm64/kernel/paravirt.c b/arch/arm64/kernel/paravirt.c
index 943b60ce12f4..572efb96b23f 100644
--- a/arch/arm64/kernel/paravirt.c
+++ b/arch/arm64/kernel/paravirt.c@@ -25,13 +25,6 @@ #include <asm/pvclock-abi.h> #include <asm/smp_plat.h> -static u64 native_steal_clock(int cpu) -{ - return 0; -} - -DEFINE_STATIC_CALL(pv_steal_clock, native_steal_clock); - struct pv_time_stolen_time_region { struct pvclock_vcpu_stolen_time __rcu *kaddr; };
--
2.51.0