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arm64/paravirt: Use common code for paravirt_steal_clock()

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Remove the arch-specific variant of paravirt_steal_clock() and use
the common one instead.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260105110520.21356-9-jgross@suse.com
This commit is contained in:
Juergen Gross 2026-01-05 12:05:07 +01:00 • committed by Borislav Petkov (AMD)
parent 15518e633b
commit ad892c4851
3 changed files with 1 additions and 17 deletions
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1
arch/arm64/Kconfig
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@ -1561,6 +1561,7 @@ 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

10
arch/arm64/include/asm/paravirt.h
View file

@ -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);

7
arch/arm64/kernel/paravirt.c
View file

@ -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;
};