[linux-2.6-block.git] / arch / powerpc / kvm / timing.h

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright IBM Corp. 2008
 *
 * Authors: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
 */

#ifndef __POWERPC_KVM_EXITTIMING_H__
#define __POWERPC_KVM_EXITTIMING_H__

#include <linux/kvm_host.h>
#include <asm/kvm_host.h>

#ifdef CONFIG_KVM_EXIT_TIMING
void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu);
void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu);
void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id);
void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu);

static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type)
{
	vcpu->arch.last_exit_type = type;
}

#else
/* if exit timing is not configured there is no need to build the c file */
static inline void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu) {}
static inline void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu) {}
static inline void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu,
						unsigned int id) {}
static inline void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu) {}
static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type) {}
#endif /* CONFIG_KVM_EXIT_TIMING */

/* account the exit in kvm_stats */
static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
{
	/* type has to be known at build time for optimization */

	/* The BUILD_BUG_ON below breaks in funny ways, commented out
	 * for now ... -BenH
	BUILD_BUG_ON(!__builtin_constant_p(type));
	*/
	switch (type) {
	case EXT_INTR_EXITS:
		vcpu->stat.ext_intr_exits++;
		break;
	case DEC_EXITS:
		vcpu->stat.dec_exits++;
		break;
	case EMULATED_INST_EXITS:
		vcpu->stat.emulated_inst_exits++;
		break;
	case DSI_EXITS:
		vcpu->stat.dsi_exits++;
		break;
	case ISI_EXITS:
		vcpu->stat.isi_exits++;
		break;
	case SYSCALL_EXITS:
		vcpu->stat.syscall_exits++;
		break;
	case DTLB_REAL_MISS_EXITS:
		vcpu->stat.dtlb_real_miss_exits++;
		break;
	case DTLB_VIRT_MISS_EXITS:
		vcpu->stat.dtlb_virt_miss_exits++;
		break;
	case MMIO_EXITS:
		vcpu->stat.mmio_exits++;
		break;
	case ITLB_REAL_MISS_EXITS:
		vcpu->stat.itlb_real_miss_exits++;
		break;
	case ITLB_VIRT_MISS_EXITS:
		vcpu->stat.itlb_virt_miss_exits++;
		break;
	case SIGNAL_EXITS:
		vcpu->stat.signal_exits++;
		break;
	case DBELL_EXITS:
		vcpu->stat.dbell_exits++;
		break;
	case GDBELL_EXITS:
		vcpu->stat.gdbell_exits++;
		break;
	}
}

/* wrapper to set exit time and account for it in kvm_stats */
static inline void kvmppc_account_exit(struct kvm_vcpu *vcpu, int type)
{
	kvmppc_set_exit_type(vcpu, type);
	kvmppc_account_exit_stat(vcpu, type);
}

#endif /* __POWERPC_KVM_EXITTIMING_H__ */
Commit	Line	Data
73e75b41 HB	1	/*
	2	* This program is free software; you can redistribute it and/or modify
	3	* it under the terms of the GNU General Public License, version 2, as
	4	* published by the Free Software Foundation.
	5	*
	6	* This program is distributed in the hope that it will be useful,
	7	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	8	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	9	* GNU General Public License for more details.
	10	*
	11	* You should have received a copy of the GNU General Public License
	12	* along with this program; if not, write to the Free Software
	13	* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	14	*
	15	* Copyright IBM Corp. 2008
	16	*
	17	* Authors: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
	18	*/
	19
	20	#ifndef __POWERPC_KVM_EXITTIMING_H__
	21	#define __POWERPC_KVM_EXITTIMING_H__
	22
	23	#include <linux/kvm_host.h>
	24	#include <asm/kvm_host.h>
	25
	26	#ifdef CONFIG_KVM_EXIT_TIMING
	27	void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu);
	28	void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu);
	29	void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id);
	30	void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu);
	31
	32	static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type)
	33	{
	34	vcpu->arch.last_exit_type = type;
	35	}
	36
	37	#else
	38	/* if exit timing is not configured there is no need to build the c file */
	39	static inline void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu) {}
	40	static inline void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu) {}
	41	static inline void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu,
	42	unsigned int id) {}
	43	static inline void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu) {}
	44	static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type) {}
	45	#endif /* CONFIG_KVM_EXIT_TIMING */
	46
	47	/* account the exit in kvm_stats */
7b701591	48	static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
73e75b41 HB	49	{
73e75b41 HB	50	/* type has to be known at build time for optimization */
38634e67 BH	51
	52	/* The BUILD_BUG_ON below breaks in funny ways, commented out
	53	* for now ... -BenH
c0a187e1	54	BUILD_BUG_ON(!__builtin_constant_p(type));
38634e67	55	*/
73e75b41 HB	56	switch (type) {
	57	case EXT_INTR_EXITS:
	58	vcpu->stat.ext_intr_exits++;
	59	break;
	60	case DEC_EXITS:
	61	vcpu->stat.dec_exits++;
	62	break;
	63	case EMULATED_INST_EXITS:
	64	vcpu->stat.emulated_inst_exits++;
	65	break;
73e75b41 HB	66	case DSI_EXITS:
	67	vcpu->stat.dsi_exits++;
	68	break;
	69	case ISI_EXITS:
	70	vcpu->stat.isi_exits++;
	71	break;
	72	case SYSCALL_EXITS:
	73	vcpu->stat.syscall_exits++;
	74	break;
	75	case DTLB_REAL_MISS_EXITS:
	76	vcpu->stat.dtlb_real_miss_exits++;
	77	break;
	78	case DTLB_VIRT_MISS_EXITS:
	79	vcpu->stat.dtlb_virt_miss_exits++;
	80	break;
	81	case MMIO_EXITS:
	82	vcpu->stat.mmio_exits++;
	83	break;
	84	case ITLB_REAL_MISS_EXITS:
	85	vcpu->stat.itlb_real_miss_exits++;
	86	break;
	87	case ITLB_VIRT_MISS_EXITS:
	88	vcpu->stat.itlb_virt_miss_exits++;
	89	break;
	90	case SIGNAL_EXITS:
	91	vcpu->stat.signal_exits++;
	92	break;
d30f6e48 SW	93	case DBELL_EXITS:
	94	vcpu->stat.dbell_exits++;
	95	break;
	96	case GDBELL_EXITS:
	97	vcpu->stat.gdbell_exits++;
	98	break;
73e75b41 HB	99	}
	100	}
	101
	102	/* wrapper to set exit time and account for it in kvm_stats */
7b701591	103	static inline void kvmppc_account_exit(struct kvm_vcpu *vcpu, int type)
73e75b41 HB	104	{
73e75b41 HB	105	kvmppc_set_exit_type(vcpu, type);
7b701591	106	kvmppc_account_exit_stat(vcpu, type);
73e75b41 HB	107	}
	108
	109	#endif /* __POWERPC_KVM_EXITTIMING_H__ */