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

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sys/amd64/vmm/io/vatpit.c

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	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.			* 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/types.h>			#include <sys/types.h>
	#include <sys/queue.h>			#include <sys/queue.h>
	#include <sys/kernel.h>			#include <sys/kernel.h>
	#include <sys/lock.h>			#include <sys/lock.h>
	#include <sys/malloc.h>			#include <sys/malloc.h>
	#include <sys/mutex.h>			#include <sys/mutex.h>
	#include <sys/systm.h>			#include <sys/systm.h>

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

	#include "vmm_ktr.h"			#include "vmm_ktr.h"
	#include "vatpic.h"			#include "vatpic.h"
	#include "vioapic.h"			#include "vioapic.h"
	#include "vatpit.h"			#include "vatpit.h"

	static MALLOC_DEFINE(M_VATPIT, "atpit", "bhyve virtual atpit (8254)");			static MALLOC_DEFINE(M_VATPIT, "atpit", "bhyve virtual atpit (8254)");

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	{			{
	int i;			int i;

	for (i = 0; i < 3; i++)			for (i = 0; i < 3; i++)
	callout_drain(&vatpit->channel[i].callout);			callout_drain(&vatpit->channel[i].callout);

	free(vatpit, M_VATPIT);			free(vatpit, M_VATPIT);
	}			}

				#ifdef BHYVE_SNAPSHOT
				int
				vatpit_snapshot(struct vatpit vatpit, struct vm_snapshot_meta meta)
				{
				int ret;
				int i;
				struct channel *channel;

				SNAPSHOT_VAR_OR_LEAVE(vatpit->freq_bt.sec, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(vatpit->freq_bt.frac, meta, ret, done);

				/* properly restore timers; they will NOT work currently */
				printf("%s: snapshot restore does not reset timers!\r\n", __func__);

				for (i = 0; i < nitems(vatpit->channel); i++) {
				channel = &vatpit->channel[i];

				SNAPSHOT_VAR_OR_LEAVE(channel->mode, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->initial, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->now_bt.sec, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->now_bt.frac, meta, ret, done);
				SNAPSHOT_BUF_OR_LEAVE(channel->cr, sizeof(channel->cr),
				meta, ret, done);
				SNAPSHOT_BUF_OR_LEAVE(channel->ol, sizeof(channel->ol),
				meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->slatched, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->status, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->crbyte, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->frbyte, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->callout_bt.sec, meta, ret, done);
				SNAPSHOT_VAR_OR_LEAVE(channel->callout_bt.frac, meta, ret,
				done);
				}

				done:
				return (ret);
				}
				#endif