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authorLinus Torvalds <torvalds@linux-foundation.org>2018-05-06 18:46:29 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-05-06 18:46:29 +0300
commit701e39d05119229b92ecca4add7b7ed2193622c3 (patch)
tree778729107b8b87c47640c6b86c4c74a7800c3de5 /arch/x86
parent772d4f84c6010f80a932f9e7e47a8acbbc0a527b (diff)
parentecf08dad723d3e000aecff6c396f54772d124733 (diff)
downloadlinux-701e39d05119229b92ecca4add7b7ed2193622c3.tar.xz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pll KVM fixes from Radim Krčmář: "ARM: - Fix proxying of GICv2 CPU interface accesses - Fix crash when switching to BE - Track source vcpu git GICv2 SGIs - Fix an outdated bit of documentation x86: - Speed up injection of expired timers (for stable)" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: remove APIC Timer periodic/oneshot spikes arm64: vgic-v2: Fix proxying of cpuif access KVM: arm/arm64: vgic_init: Cleanup reference to process_maintenance KVM: arm64: Fix order of vcpu_write_sys_reg() arguments KVM: arm/arm64: vgic: Fix source vcpu issues for GICv2 SGI
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/lapic.c37
1 files changed, 20 insertions, 17 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 70dcb5548022..b74c9c1405b9 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1463,23 +1463,6 @@ static void start_sw_tscdeadline(struct kvm_lapic *apic)
local_irq_restore(flags);
}
-static void start_sw_period(struct kvm_lapic *apic)
-{
- if (!apic->lapic_timer.period)
- return;
-
- if (apic_lvtt_oneshot(apic) &&
- ktime_after(ktime_get(),
- apic->lapic_timer.target_expiration)) {
- apic_timer_expired(apic);
- return;
- }
-
- hrtimer_start(&apic->lapic_timer.timer,
- apic->lapic_timer.target_expiration,
- HRTIMER_MODE_ABS_PINNED);
-}
-
static void update_target_expiration(struct kvm_lapic *apic, uint32_t old_divisor)
{
ktime_t now, remaining;
@@ -1546,6 +1529,26 @@ static void advance_periodic_target_expiration(struct kvm_lapic *apic)
apic->lapic_timer.period);
}
+static void start_sw_period(struct kvm_lapic *apic)
+{
+ if (!apic->lapic_timer.period)
+ return;
+
+ if (ktime_after(ktime_get(),
+ apic->lapic_timer.target_expiration)) {
+ apic_timer_expired(apic);
+
+ if (apic_lvtt_oneshot(apic))
+ return;
+
+ advance_periodic_target_expiration(apic);
+ }
+
+ hrtimer_start(&apic->lapic_timer.timer,
+ apic->lapic_timer.target_expiration,
+ HRTIMER_MODE_ABS_PINNED);
+}
+
bool kvm_lapic_hv_timer_in_use(struct kvm_vcpu *vcpu)
{
if (!lapic_in_kernel(vcpu))