diff options
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/kvmclock.c | 9 | ||||
| -rw-r--r-- | arch/x86/kernel/pvclock.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/time.c | 12 | ||||
| -rw-r--r-- | arch/x86/kernel/tsc.c | 32 |
4 files changed, 32 insertions, 23 deletions
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index 904494b924c1..34b18f6eeb2c 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -159,12 +159,19 @@ bool kvm_check_and_clear_guest_paused(void) return ret; } +static int kvm_cs_enable(struct clocksource *cs) +{ + vclocks_set_used(VDSO_CLOCKMODE_PVCLOCK); + return 0; +} + struct clocksource kvm_clock = { .name = "kvm-clock", .read = kvm_clock_get_cycles, .rating = 400, .mask = CLOCKSOURCE_MASK(64), .flags = CLOCK_SOURCE_IS_CONTINUOUS, + .enable = kvm_cs_enable, }; EXPORT_SYMBOL_GPL(kvm_clock); @@ -272,7 +279,7 @@ static int __init kvm_setup_vsyscall_timeinfo(void) if (!(flags & PVCLOCK_TSC_STABLE_BIT)) return 0; - kvm_clock.archdata.vclock_mode = VCLOCK_PVCLOCK; + kvm_clock.vdso_clock_mode = VDSO_CLOCKMODE_PVCLOCK; #endif kvmclock_init_mem(); diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index 10125358b9c4..11065dc03f5b 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -145,7 +145,7 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall_clock, void pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti) { - WARN_ON(vclock_was_used(VCLOCK_PVCLOCK)); + WARN_ON(vclock_was_used(VDSO_CLOCKMODE_PVCLOCK)); pvti_cpu0_va = pvti; } diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c index d8673d8a779b..4d545db52efc 100644 --- a/arch/x86/kernel/time.c +++ b/arch/x86/kernel/time.c @@ -122,18 +122,12 @@ void __init time_init(void) */ void clocksource_arch_init(struct clocksource *cs) { - if (cs->archdata.vclock_mode == VCLOCK_NONE) + if (cs->vdso_clock_mode == VDSO_CLOCKMODE_NONE) return; - if (cs->archdata.vclock_mode > VCLOCK_MAX) { - pr_warn("clocksource %s registered with invalid vclock_mode %d. Disabling vclock.\n", - cs->name, cs->archdata.vclock_mode); - cs->archdata.vclock_mode = VCLOCK_NONE; - } - if (cs->mask != CLOCKSOURCE_MASK(64)) { - pr_warn("clocksource %s registered with invalid mask %016llx. Disabling vclock.\n", + pr_warn("clocksource %s registered with invalid mask %016llx for VDSO. Disabling VDSO support.\n", cs->name, cs->mask); - cs->archdata.vclock_mode = VCLOCK_NONE; + cs->vdso_clock_mode = VDSO_CLOCKMODE_NONE; } } diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 7e322e2daaf5..971d6f0216df 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -1108,17 +1108,24 @@ static void tsc_cs_tick_stable(struct clocksource *cs) sched_clock_tick_stable(); } +static int tsc_cs_enable(struct clocksource *cs) +{ + vclocks_set_used(VDSO_CLOCKMODE_TSC); + return 0; +} + /* * .mask MUST be CLOCKSOURCE_MASK(64). See comment above read_tsc() */ static struct clocksource clocksource_tsc_early = { - .name = "tsc-early", - .rating = 299, - .read = read_tsc, - .mask = CLOCKSOURCE_MASK(64), - .flags = CLOCK_SOURCE_IS_CONTINUOUS | + .name = "tsc-early", + .rating = 299, + .read = read_tsc, + .mask = CLOCKSOURCE_MASK(64), + .flags = CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_MUST_VERIFY, - .archdata = { .vclock_mode = VCLOCK_TSC }, + .vdso_clock_mode = VDSO_CLOCKMODE_TSC, + .enable = tsc_cs_enable, .resume = tsc_resume, .mark_unstable = tsc_cs_mark_unstable, .tick_stable = tsc_cs_tick_stable, @@ -1131,14 +1138,15 @@ static struct clocksource clocksource_tsc_early = { * been found good. */ static struct clocksource clocksource_tsc = { - .name = "tsc", - .rating = 300, - .read = read_tsc, - .mask = CLOCKSOURCE_MASK(64), - .flags = CLOCK_SOURCE_IS_CONTINUOUS | + .name = "tsc", + .rating = 300, + .read = read_tsc, + .mask = CLOCKSOURCE_MASK(64), + .flags = CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_VALID_FOR_HRES | CLOCK_SOURCE_MUST_VERIFY, - .archdata = { .vclock_mode = VCLOCK_TSC }, + .vdso_clock_mode = VDSO_CLOCKMODE_TSC, + .enable = tsc_cs_enable, .resume = tsc_resume, .mark_unstable = tsc_cs_mark_unstable, .tick_stable = tsc_cs_tick_stable, |