linux/arch/s390/kvm/kvm-s390.h
Carsten Otte f7850c9288 [S390] remove kvm mmu reload on s390
This patch removes the mmu reload logic for kvm on s390. Via Martin's
new gmap interface, we can safely add or remove memory slots while
guest CPUs are in-flight. Thus, the mmu reload logic is not needed
anymore.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:21 +02:00

75 lines
2.4 KiB
C

/*
* kvm_s390.h - definition for kvm on s390
*
* Copyright IBM Corp. 2008,2009
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (version 2 only)
* as published by the Free Software Foundation.
*
* Author(s): Carsten Otte <cotte@de.ibm.com>
* Christian Borntraeger <borntraeger@de.ibm.com>
* Christian Ehrhardt <ehrhardt@de.ibm.com>
*/
#ifndef ARCH_S390_KVM_S390_H
#define ARCH_S390_KVM_S390_H
#include <linux/hrtimer.h>
#include <linux/kvm.h>
#include <linux/kvm_host.h>
/* The current code can have up to 256 pages for virtio */
#define VIRTIODESCSPACE (256ul * 4096ul)
typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu);
/* negativ values are error codes, positive values for internal conditions */
#define SIE_INTERCEPT_RERUNVCPU (1<<0)
int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu);
#define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\
do { \
debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \
d_args); \
} while (0)
#define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\
do { \
debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \
"%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \
d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\
d_args); \
} while (0)
static inline int __cpu_is_stopped(struct kvm_vcpu *vcpu)
{
return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOP_INT;
}
int kvm_s390_handle_wait(struct kvm_vcpu *vcpu);
enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer);
void kvm_s390_tasklet(unsigned long parm);
void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu);
int kvm_s390_inject_vm(struct kvm *kvm,
struct kvm_s390_interrupt *s390int);
int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
struct kvm_s390_interrupt *s390int);
int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code);
int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action);
/* implemented in priv.c */
int kvm_s390_handle_b2(struct kvm_vcpu *vcpu);
int kvm_s390_handle_e5(struct kvm_vcpu *vcpu);
/* implemented in sigp.c */
int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
/* implemented in kvm-s390.c */
int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu,
unsigned long addr);
/* implemented in diag.c */
int kvm_s390_handle_diag(struct kvm_vcpu *vcpu);
#endif