Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
riscv/paravirt: Use common code for paravirt_steal_clock()
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>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260105110520.21356-11-jgross@suse.com
authored by
Juergen Gross
and committed by
Borislav Petkov (AMD)
ee9ffcf9
b8431b90
+1
-17
+1
arch/riscv/Kconfig
+1
arch/riscv/Kconfig
···
1111
1111
config PARAVIRT
1112
1112
bool "Enable paravirtualization code"
1113
1113
depends on RISCV_SBI
1114
+
select HAVE_PV_STEAL_CLOCK_GEN
1114
1115
help
1115
1116
This changes the kernel so it can modify itself when it is run
1116
1117
under a hypervisor, potentially improving performance significantly
-10
arch/riscv/include/asm/paravirt.h
-10
arch/riscv/include/asm/paravirt.h
···
3
3
#define _ASM_RISCV_PARAVIRT_H
4
4
5
5
#ifdef CONFIG_PARAVIRT
6
-
#include <linux/static_call_types.h>
7
-
8
-
u64 dummy_steal_clock(int cpu);
9
-
10
-
DECLARE_STATIC_CALL(pv_steal_clock, dummy_steal_clock);
11
-
12
-
static inline u64 paravirt_steal_clock(int cpu)
13
-
{
14
-
return static_call(pv_steal_clock)(cpu);
15
-
}
16
6
17
7
int __init pv_time_init(void);
18
8
-7
arch/riscv/kernel/paravirt.c
-7
arch/riscv/kernel/paravirt.c
···
23
23
#include <asm/paravirt.h>
24
24
#include <asm/sbi.h>
25
25
26
-
static u64 native_steal_clock(int cpu)
27
-
{
28
-
return 0;
29
-
}
30
-
31
-
DEFINE_STATIC_CALL(pv_steal_clock, native_steal_clock);
32
-
33
26
static bool steal_acc = true;
34
27
static int __init parse_no_stealacc(char *arg)
35
28
{