kernel/2.6.29.6-aldebaran-rt/arch/powerpc/kvm/booke.h

   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: Hollis Blanchard <hollisb@us.ibm.com>
  18  */
  19
  20 #ifndef __KVM_BOOKE_H__
  21 #define __KVM_BOOKE_H__
  22
  23 #include <linux/types.h>
  24 #include <linux/kvm_host.h>
  25 #include "timing.h"
  26
  27 /* interrupt priortity ordering */
  28 #define BOOKE_IRQPRIO_DATA_STORAGE 0
  29 #define BOOKE_IRQPRIO_INST_STORAGE 1
  30 #define BOOKE_IRQPRIO_ALIGNMENT 2
  31 #define BOOKE_IRQPRIO_PROGRAM 3
  32 #define BOOKE_IRQPRIO_FP_UNAVAIL 4
  33 #define BOOKE_IRQPRIO_SYSCALL 5
  34 #define BOOKE_IRQPRIO_AP_UNAVAIL 6
  35 #define BOOKE_IRQPRIO_DTLB_MISS 7
  36 #define BOOKE_IRQPRIO_ITLB_MISS 8
  37 #define BOOKE_IRQPRIO_MACHINE_CHECK 9
  38 #define BOOKE_IRQPRIO_DEBUG 10
  39 #define BOOKE_IRQPRIO_CRITICAL 11
  40 #define BOOKE_IRQPRIO_WATCHDOG 12
  41 #define BOOKE_IRQPRIO_EXTERNAL 13
  42 #define BOOKE_IRQPRIO_FIT 14
  43 #define BOOKE_IRQPRIO_DECREMENTER 15
  44
  45 /* Helper function for "full" MSR writes. No need to call this if only EE is
  46  * changing. */
  47 static inline void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
  48 {
  49         if ((new_msr & MSR_PR) != (vcpu->arch.msr & MSR_PR))
  50                 kvmppc_mmu_priv_switch(vcpu, new_msr & MSR_PR);
  51
  52         vcpu->arch.msr = new_msr;
  53
  54         if (vcpu->arch.msr & MSR_WE) {
  55                 kvm_vcpu_block(vcpu);
  56                 kvmppc_set_exit_type(vcpu, EMULATED_MTMSRWE_EXITS);
  57         };
  58 }
  59
  60 #endif /* __KVM_BOOKE_H__ */