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linux
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kvm-s390.h
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/* * 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> typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu); /* declare vfacilities extern */ extern unsigned long *vfacilities; 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; } static inline int kvm_is_ucontrol(struct kvm *kvm) { #ifdef CONFIG_KVM_S390_UCONTROL if (kvm->arch.gmap) return 0; return 1; #else return 0; #endif } static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix) { vcpu->arch.sie_block->prefix = prefix & 0x7fffe000u; vcpu->arch.sie_block->ihcpu = 0xffff; kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu); } static inline u64 kvm_s390_get_base_disp_s(struct kvm_vcpu *vcpu) { u32 base2 = vcpu->arch.sie_block->ipb >> 28; u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; } static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu *vcpu, u64 *address1, u64 *address2) { u32 base1 = (vcpu->arch.sie_block->ipb & 0xf0000000) >> 28; u32 disp1 = (vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16; u32 base2 = (vcpu->arch.sie_block->ipb & 0xf000) >> 12; u32 disp2 = vcpu->arch.sie_block->ipb & 0x0fff; *address1 = (base1 ? vcpu->run->s.regs.gprs[base1] : 0) + disp1; *address2 = (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; } static inline void kvm_s390_get_regs_rre(struct kvm_vcpu *vcpu, int *r1, int *r2) { if (r1) *r1 = (vcpu->arch.sie_block->ipb & 0x00f00000) >> 20; if (r2) *r2 = (vcpu->arch.sie_block->ipb & 0x000f0000) >> 16; } static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu) { u32 base2 = vcpu->arch.sie_block->ipb >> 28; u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16) + ((vcpu->arch.sie_block->ipb & 0xff00) << 4); /* The displacement is a 20bit _SIGNED_ value */ if (disp2 & 0x80000) disp2+=0xfff00000; return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + (long)(int)disp2; } static inline u64 kvm_s390_get_base_disp_rs(struct kvm_vcpu *vcpu) { u32 base2 = vcpu->arch.sie_block->ipb >> 28; u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; } /* Set the condition code in the guest program status word */ static inline void kvm_s390_set_psw_cc(struct kvm_vcpu *vcpu, unsigned long cc) { vcpu->arch.sie_block->gpsw.mask &= ~(3UL << 44); vcpu->arch.sie_block->gpsw.mask |= cc << 44; } 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); void kvm_s390_deliver_pending_machine_checks(struct kvm_vcpu *vcpu); int __must_check kvm_s390_inject_vm(struct kvm *kvm, struct kvm_s390_interrupt *s390int); int __must_check kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_interrupt *s390int); int __must_check kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code); struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm, u64 cr6, u64 schid); /* implemented in priv.c */ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); int kvm_s390_handle_e5(struct kvm_vcpu *vcpu); int kvm_s390_handle_01(struct kvm_vcpu *vcpu); int kvm_s390_handle_b9(struct kvm_vcpu *vcpu); int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu); int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu); int kvm_s390_handle_eb(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_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr); int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr); void s390_vcpu_block(struct kvm_vcpu *vcpu); void s390_vcpu_unblock(struct kvm_vcpu *vcpu); void exit_sie(struct kvm_vcpu *vcpu); void exit_sie_sync(struct kvm_vcpu *vcpu); /* implemented in diag.c */ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); #endif
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