diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
---|---|---|
committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/kvm/timing.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/powerpc/kvm/timing.h')
-rw-r--r-- | kernel/arch/powerpc/kvm/timing.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/kvm/timing.h b/kernel/arch/powerpc/kvm/timing.h new file mode 100644 index 000000000..3123690c8 --- /dev/null +++ b/kernel/arch/powerpc/kvm/timing.h @@ -0,0 +1,109 @@ +/* + * 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__ */ |