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Commit 2cbd1883 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm 

* 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: PIT: control word is write-only
  kvmclock: count total_sleep_time when updating guest clock
  Export the symbol of getboottime and mmonotonic_to_bootbased
parents 5993fe31 ee73f656

arch/x86/kvm/i8254.c

+3 −0
Original line number Diff line number Diff line
@@ -467,6 +467,9 @@ static int pit_ioport_read(struct kvm_io_device *this, 
		return -EOPNOTSUPP;



	addr &= KVM_PIT_CHANNEL_MASK;

	if (addr == 3)

		return 0;



	s = &pit_state->channels[addr];



	mutex_lock(&pit_state->lock);

arch/x86/kvm/x86.c

+3 −4
Original line number Diff line number Diff line
@@ -670,7 +670,7 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) 
{

	static int version;

	struct pvclock_wall_clock wc;

	struct timespec now, sys, boot;

	struct timespec boot;



	if (!wall_clock)

		return;
@@ -685,9 +685,7 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) 
	 * wall clock specified here.  guest system time equals host

	 * system time for us, thus we must fill in host boot time here.

	 */

	now = current_kernel_time();

	ktime_get_ts(&sys);

	boot = ns_to_timespec(timespec_to_ns(&now) - timespec_to_ns(&sys));

	getboottime(&boot);



	wc.sec = boot.tv_sec;

	wc.nsec = boot.tv_nsec;
@@ -762,6 +760,7 @@ static void kvm_write_guest_time(struct kvm_vcpu *v) 
	local_irq_save(flags);

	kvm_get_msr(v, MSR_IA32_TSC, &vcpu->hv_clock.tsc_timestamp);

	ktime_get_ts(&ts);

	monotonic_to_bootbased(&ts);

	local_irq_restore(flags);



	/* With all the info we got, fill in the values */

kernel/time/timekeeping.c

+2 −0
Original line number Diff line number Diff line
@@ -880,6 +880,7 @@ void getboottime(struct timespec *ts) 


	set_normalized_timespec(ts, -boottime.tv_sec, -boottime.tv_nsec);

}

EXPORT_SYMBOL_GPL(getboottime);



/**

 * monotonic_to_bootbased - Convert the monotonic time to boot based.
@@ -889,6 +890,7 @@ void monotonic_to_bootbased(struct timespec *ts) 
{

	*ts = timespec_add_safe(*ts, total_sleep_time);

}

EXPORT_SYMBOL_GPL(monotonic_to_bootbased);



unsigned long get_seconds(void)

{