Differential D19495 Diff 69728 sys/amd64/vmm/io/vpmtmr.c

Changeset View

Standalone View

sys/amd64/vmm/io/vpmtmr.c

Show All 23 Lines
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT		* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.		* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/		*/

#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

		#include "opt_bhyve_snapshot.h"

#include <sys/param.h>		#include <sys/param.h>
#include <sys/queue.h>		#include <sys/queue.h>
#include <sys/kernel.h>		#include <sys/kernel.h>
#include <sys/malloc.h>		#include <sys/malloc.h>
#include <sys/systm.h>		#include <sys/systm.h>

#include <machine/vmm.h>		#include <machine/vmm.h>
		#include <machine/vmm_snapshot.h>

#include "vpmtmr.h"		#include "vpmtmr.h"

/*		/*
* The ACPI Power Management timer is a free-running 24- or 32-bit		* The ACPI Power Management timer is a free-running 24- or 32-bit
* timer with a frequency of 3.579545MHz		* timer with a frequency of 3.579545MHz
*		*
* This implementation will be 32-bits		* This implementation will be 32-bits
▲ Show 20 Lines • Show All 51 Lines • ▼ Show 20 Lines	vpmtmr_handler(struct vm *vm, int vcpuid, bool in, int port, int bytes,
now = sbinuptime();		now = sbinuptime();
delta = now - vpmtmr->baseuptime;		delta = now - vpmtmr->baseuptime;
KASSERT(delta >= 0, ("vpmtmr_handler: uptime went backwards: "		KASSERT(delta >= 0, ("vpmtmr_handler: uptime went backwards: "
"%#lx to %#lx", vpmtmr->baseuptime, now));		"%#lx to %#lx", vpmtmr->baseuptime, now));
*val = vpmtmr->baseval + delta / vpmtmr->freq_sbt;		*val = vpmtmr->baseval + delta / vpmtmr->freq_sbt;

return (0);		return (0);
}		}

		#ifdef BHYVE_SNAPSHOT
		int
		vpmtmr_snapshot(struct vpmtmr vpmtmr, struct vm_snapshot_meta meta)
		{
		int ret;

		SNAPSHOT_VAR_OR_LEAVE(vpmtmr->baseval, meta, ret, done);

		done:
		return (ret);
		}
		#endif