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x86/vdso: Use generic VDSO clock mode storage

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Switch to the generic VDSO clock mode storage.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> (VDSO parts)
Acked-by: Juergen Gross <jgross@suse.com> (Xen parts)
Acked-by: Paolo Bonzini <pbonzini@redhat.com> (KVM parts)
Link: https://lkml.kernel.org/r/20200207124403.152039903@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-02-07 13:38:56 +01:00
parent 5d51bee725
commit b95a8a27c3
13 changed files with 46 additions and 63 deletions
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13
arch/x86/include/asm/clocksource.h
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@@ -4,15 +4,10 @@
#ifndef _ASM_X86_CLOCKSOURCE_H
#define _ASM_X86_CLOCKSOURCE_H
#define VCLOCK_NONE 0 /* No vDSO clock available. */
#define VCLOCK_TSC 1 /* vDSO should use vread_tsc. */
#define VCLOCK_PVCLOCK 2 /* vDSO should use vread_pvclock. */
#define VCLOCK_HVCLOCK 3 /* vDSO should use vread_hvclock. */
#define VCLOCK_MAX 3
struct arch_clocksource_data {
int vclock_mode;
};
#define VDSO_ARCH_CLOCKMODES \
VDSO_CLOCKMODE_TSC, \
VDSO_CLOCKMODE_PVCLOCK, \
VDSO_CLOCKMODE_HVCLOCK
extern unsigned int vclocks_used;