diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 4 | ||||
| -rw-r--r-- | arch/s390/kvm/diag.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/gaccess.h | 8 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 10 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 8 | ||||
| -rw-r--r-- | arch/s390/kvm/priv.c | 3 |
6 files changed, 22 insertions, 13 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index dc182a5..a27f500 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -82,7 +82,9 @@ struct sca_block { struct kvm_s390_sie_block { atomic_t cpuflags; /* 0x0000 */ - __u32 prefix; /* 0x0004 */ + __u32 : 1; /* 0x0004 */ + __u32 prefix : 18; + __u32 : 13; __u8 reserved08[4]; /* 0x0008 */ #define PROG_IN_SIE (1<<0) __u32 prog0c; /* 0x000c */ diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c index 004d385..0161675 100644 --- a/arch/s390/kvm/diag.c +++ b/arch/s390/kvm/diag.c @@ -23,7 +23,7 @@ static int diag_release_pages(struct kvm_vcpu *vcpu) { unsigned long start, end; - unsigned long prefix = vcpu->arch.sie_block->prefix; + unsigned long prefix = kvm_s390_get_prefix(vcpu); start = vcpu->run->s.regs.gprs[(vcpu->arch.sie_block->ipa & 0xf0) >> 4]; end = vcpu->run->s.regs.gprs[vcpu->arch.sie_block->ipa & 0xf] + 4096; diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h index 68db43e..a07ee08 100644 --- a/arch/s390/kvm/gaccess.h +++ b/arch/s390/kvm/gaccess.h @@ -30,7 +30,7 @@ static inline unsigned long kvm_s390_real_to_abs(struct kvm_vcpu *vcpu, unsigned long gra) { - unsigned long prefix = vcpu->arch.sie_block->prefix; + unsigned long prefix = kvm_s390_get_prefix(vcpu); if (gra < 2 * PAGE_SIZE) gra += prefix; @@ -99,7 +99,7 @@ static inline unsigned long kvm_s390_logical_to_effective(struct kvm_vcpu *vcpu, unsigned long __gpa; \ \ __gpa = (unsigned long)(gra); \ - __gpa += __vcpu->arch.sie_block->prefix; \ + __gpa += kvm_s390_get_prefix(__vcpu); \ kvm_write_guest(__vcpu->kvm, __gpa, &__x, sizeof(__x)); \ }) @@ -124,7 +124,7 @@ static inline __must_check int write_guest_lc(struct kvm_vcpu *vcpu, unsigned long gra, void *data, unsigned long len) { - unsigned long gpa = gra + vcpu->arch.sie_block->prefix; + unsigned long gpa = gra + kvm_s390_get_prefix(vcpu); return kvm_write_guest(vcpu->kvm, gpa, data, len); } @@ -150,7 +150,7 @@ static inline __must_check int read_guest_lc(struct kvm_vcpu *vcpu, unsigned long gra, void *data, unsigned long len) { - unsigned long gpa = gra + vcpu->arch.sie_block->prefix; + unsigned long gpa = gra + kvm_s390_get_prefix(vcpu); return kvm_read_guest(vcpu->kvm, gpa, data, len); } diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 2c24312..e519860 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -753,7 +753,7 @@ static void kvm_gmap_notifier(struct gmap *gmap, unsigned long address) kvm_for_each_vcpu(i, vcpu, kvm) { /* match against both prefix pages */ - if (vcpu->arch.sie_block->prefix == (address & ~0x1000UL)) { + if (kvm_s390_get_prefix(vcpu) == (address & ~0x1000UL)) { VCPU_EVENT(vcpu, 2, "gmap notifier for %lx", address); kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu); exit_sie_sync(vcpu); @@ -1017,7 +1017,7 @@ retry: if (kvm_check_request(KVM_REQ_MMU_RELOAD, vcpu)) { int rc; rc = gmap_ipte_notify(vcpu->arch.gmap, - vcpu->arch.sie_block->prefix, + kvm_s390_get_prefix(vcpu), PAGE_SIZE * 2); if (rc) return rc; @@ -1338,7 +1338,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) kvm_run->psw_mask = vcpu->arch.sie_block->gpsw.mask; kvm_run->psw_addr = vcpu->arch.sie_block->gpsw.addr; - kvm_run->s.regs.prefix = vcpu->arch.sie_block->prefix; + kvm_run->s.regs.prefix = kvm_s390_get_prefix(vcpu); memcpy(&kvm_run->s.regs.crs, &vcpu->arch.sie_block->gcr, 128); if (vcpu->sigset_active) @@ -1357,6 +1357,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long gpa) { unsigned char archmode = 1; + unsigned int px; u64 clkcomp; int rc; @@ -1375,8 +1376,9 @@ int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long gpa) vcpu->run->s.regs.gprs, 128); rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, psw), &vcpu->arch.sie_block->gpsw, 16); + px = kvm_s390_get_prefix(vcpu); rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, pref_reg), - &vcpu->arch.sie_block->prefix, 4); + &px, 4); rc |= write_guest_abs(vcpu, gpa + offsetof(struct save_area, fp_ctrl_reg), &vcpu->arch.guest_fpregs.fpc, 4); diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 87edfc9..a8655ed 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -61,9 +61,15 @@ static inline int kvm_is_ucontrol(struct kvm *kvm) #endif } +#define GUEST_PREFIX_SHIFT 13 +static inline u32 kvm_s390_get_prefix(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.sie_block->prefix << GUEST_PREFIX_SHIFT; +} + static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix) { - vcpu->arch.sie_block->prefix = prefix & 0x7fffe000u; + vcpu->arch.sie_block->prefix = prefix >> GUEST_PREFIX_SHIFT; vcpu->arch.sie_block->ihcpu = 0xffff; kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu); } diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index d99f5f0..6296159 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -119,8 +119,7 @@ static int handle_store_prefix(struct kvm_vcpu *vcpu) if (operand2 & 3) return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION); - address = vcpu->arch.sie_block->prefix; - address = address & 0x7fffe000u; + address = kvm_s390_get_prefix(vcpu); /* get the value */ rc = write_guest(vcpu, operand2, &address, sizeof(address)); |