diff options
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 6 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 23 | ||||
| -rw-r--r-- | arch/s390/kvm/trace.h | 1 |
3 files changed, 19 insertions, 11 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 7f35cb3..7f1f7ac 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -385,7 +385,7 @@ static int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu) } if ((!rc) && (vcpu->arch.sie_block->ckc < - get_tod_clock() + vcpu->arch.sie_block->epoch)) { + get_tod_clock_fast() + vcpu->arch.sie_block->epoch)) { if ((!psw_extint_disabled(vcpu)) && (vcpu->arch.sie_block->gcr[0] & 0x800ul)) rc = 1; @@ -425,7 +425,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu) goto no_timer; } - now = get_tod_clock() + vcpu->arch.sie_block->epoch; + now = get_tod_clock_fast() + vcpu->arch.sie_block->epoch; if (vcpu->arch.sie_block->ckc < now) { __unset_cpu_idle(vcpu); return 0; @@ -515,7 +515,7 @@ void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu) } if ((vcpu->arch.sie_block->ckc < - get_tod_clock() + vcpu->arch.sie_block->epoch)) + get_tod_clock_fast() + vcpu->arch.sie_block->epoch)) __try_deliver_ckc_interrupt(vcpu); if (atomic_read(&fi->active)) { diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 776dafe..ed8064c 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -343,10 +343,11 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { - save_fp_regs(&vcpu->arch.host_fpregs); + save_fp_ctl(&vcpu->arch.host_fpregs.fpc); + save_fp_regs(vcpu->arch.host_fpregs.fprs); save_access_regs(vcpu->arch.host_acrs); - vcpu->arch.guest_fpregs.fpc &= FPC_VALID_MASK; - restore_fp_regs(&vcpu->arch.guest_fpregs); + restore_fp_ctl(&vcpu->arch.guest_fpregs.fpc); + restore_fp_regs(vcpu->arch.guest_fpregs.fprs); restore_access_regs(vcpu->run->s.regs.acrs); gmap_enable(vcpu->arch.gmap); atomic_set_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); @@ -356,9 +357,11 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) { atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); gmap_disable(vcpu->arch.gmap); - save_fp_regs(&vcpu->arch.guest_fpregs); + save_fp_ctl(&vcpu->arch.guest_fpregs.fpc); + save_fp_regs(vcpu->arch.guest_fpregs.fprs); save_access_regs(vcpu->run->s.regs.acrs); - restore_fp_regs(&vcpu->arch.host_fpregs); + restore_fp_ctl(&vcpu->arch.host_fpregs.fpc); + restore_fp_regs(vcpu->arch.host_fpregs.fprs); restore_access_regs(vcpu->arch.host_acrs); } @@ -618,9 +621,12 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { + if (test_fp_ctl(fpu->fpc)) + return -EINVAL; memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs)); - vcpu->arch.guest_fpregs.fpc = fpu->fpc & FPC_VALID_MASK; - restore_fp_regs(&vcpu->arch.guest_fpregs); + vcpu->arch.guest_fpregs.fpc = fpu->fpc; + restore_fp_ctl(&vcpu->arch.guest_fpregs.fpc); + restore_fp_regs(vcpu->arch.guest_fpregs.fprs); return 0; } @@ -876,7 +882,8 @@ int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) * copying in vcpu load/put. Lets update our copies before we save * it into the save area */ - save_fp_regs(&vcpu->arch.guest_fpregs); + save_fp_ctl(&vcpu->arch.guest_fpregs.fpc); + save_fp_regs(vcpu->arch.guest_fpregs.fprs); save_access_regs(vcpu->run->s.regs.acrs); if (__guestcopy(vcpu, addr + offsetof(struct save_area, fp_regs), diff --git a/arch/s390/kvm/trace.h b/arch/s390/kvm/trace.h index c2f582bb1c..0c991c6 100644 --- a/arch/s390/kvm/trace.h +++ b/arch/s390/kvm/trace.h @@ -4,6 +4,7 @@ #include <linux/tracepoint.h> #include <asm/sigp.h> #include <asm/debug.h> +#include <asm/dis.h> #undef TRACE_SYSTEM #define TRACE_SYSTEM kvm |