search for: vcpu_put

....st.steal.preempted = 1; > + > + kvm_write_guest_offset_cached(vcpu->kvm, &vcpu->arch.st.stime, > + &vcpu->arch.st.steal.preempted, > + offsetof(struct kvm_steal_time, preempted), > + sizeof(vcpu->arch.st.steal.preempted)); > +} > + > void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) > { > + kvm_steal_time_set_preempted(vcpu); > kvm_x86_ops->vcpu_put(vcpu); > kvm_put_guest_fpu(vcpu); > vcpu->arch.last_host_tsc = rdtsc(); You can't call kvm_steal_time_set_preempted in atomic context (neither in sched_out notifier nor in vcp...

....st.steal.preempted = 1; > + > + kvm_write_guest_offset_cached(vcpu->kvm, &vcpu->arch.st.stime, > + &vcpu->arch.st.steal.preempted, > + offsetof(struct kvm_steal_time, preempted), > + sizeof(vcpu->arch.st.steal.preempted)); > +} > + > void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) > { > + kvm_steal_time_set_preempted(vcpu); > kvm_x86_ops->vcpu_put(vcpu); > kvm_put_guest_fpu(vcpu); > vcpu->arch.last_host_tsc = rdtsc(); You can't call kvm_steal_time_set_preempted in atomic context (neither in sched_out notifier nor in vcp...

...; + >> + kvm_write_guest_offset_cached(vcpu->kvm, &vcpu->arch.st.stime, >> + &vcpu->arch.st.steal.preempted, >> + offsetof(struct kvm_steal_time, preempted), >> + sizeof(vcpu->arch.st.steal.preempted)); >> +} >> + >> void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) >> { >> + kvm_steal_time_set_preempted(vcpu); >> kvm_x86_ops->vcpu_put(vcpu); >> kvm_put_guest_fpu(vcpu); >> vcpu->arch.last_host_tsc = rdtsc(); > > You can't call kvm_steal_time_set_preempted in atomic context (neither &gt...

...rs); + vcpu->arch.guest_fpregs.fpc &= FPC_VALID_MASK; + restore_fp_regs(&vcpu->arch.guest_fpregs); + restore_access_regs(vcpu->arch.guest_acrs); + + if (signal_pending(current)) + atomic_set_mask(CPUSTAT_STOP_INT, + &vcpu->arch.sie_block->cpuflags); +} + +void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) +{ + save_fp_regs(&vcpu->arch.guest_fpregs); + save_access_regs(vcpu->arch.guest_acrs); + restore_fp_regs(&vcpu->arch.host_fpregs); + restore_access_regs(vcpu->arch.host_acrs); +} + +static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu) +{ + /* th...

...rs); + vcpu->arch.guest_fpregs.fpc &= FPC_VALID_MASK; + restore_fp_regs(&vcpu->arch.guest_fpregs); + restore_access_regs(vcpu->arch.guest_acrs); + + if (signal_pending(current)) + atomic_set_mask(CPUSTAT_STOP_INT, + &vcpu->arch.sie_block->cpuflags); +} + +void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) +{ + save_fp_regs(&vcpu->arch.guest_fpregs); + save_access_regs(vcpu->arch.guest_acrs); + restore_fp_regs(&vcpu->arch.host_fpregs); + restore_access_regs(vcpu->arch.host_acrs); +} + +static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu) +{ + /* th...

...unsigned long rflags; int i, r; - vcpu_load(vcpu); - if (dbg->control & (KVM_GUESTDBG_INJECT_DB | KVM_GUESTDBG_INJECT_BP)) { r = -EBUSY; if (vcpu->arch.exception.pending) @@ -8980,10 +8978,20 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, r = 0; out: - vcpu_put(vcpu); return r; } +int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, + struct kvm_guest_debug *dbg) +{ + int ret; + + vcpu_load(vcpu); + ret = kvm_arch_vcpu_set_guest_debug(vcpu, dbg); + vcpu_put(vcpu); + return ret; +} + /* * Translate a guest virtual address to a guest p...

...diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index b79cd6aa4075..d279195dac97 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1048,6 +1048,7 @@ struct kvm_x86_ops { void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); void (*vcpu_put)(struct kvm_vcpu *vcpu); + bool (*bp_intercepted)(struct kvm_vcpu *vcpu); void (*update_bp_intercept)(struct kvm_vcpu *vcpu); int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); diff --git a/arch/x86/kvm/svm.c b/arch/x86/...

...R_ENABLED)) + return; + + vcpu->arch.st.steal.preempted = 1; + + kvm_write_guest_offset_cached(vcpu->kvm, &vcpu->arch.st.stime, + &vcpu->arch.st.steal.preempted, + offsetof(struct kvm_steal_time, preempted), + sizeof(vcpu->arch.st.steal.preempted)); +} + void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) { + kvm_steal_time_set_preempted(vcpu); kvm_x86_ops->vcpu_put(vcpu); kvm_put_guest_fpu(vcpu); vcpu->arch.last_host_tsc = rdtsc(); -- 2.4.11

...e_request(KVM_REQ_EVENT, vcpu); } @@ -8655,7 +8662,7 @@ static void __set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { vcpu_load(vcpu); - __set_regs(vcpu, regs); + kvm_arch_vcpu_set_regs(vcpu, regs, true); vcpu_put(vcpu); return 0; } @@ -9059,7 +9066,7 @@ static int sync_regs(struct kvm_vcpu *vcpu) return -EINVAL; if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_REGS) { - __set_regs(vcpu, &vcpu->run->s.regs.regs); + kvm_arch_vcpu_set_regs(vcpu, &vcpu->run->s.regs.regs, tr...

...d(vcpu); __set_regs(vcpu, regs); + + if (clear_exception) + vcpu->arch.exception.pending = false; + + kvm_make_request(KVM_REQ_EVENT, vcpu); +} + +int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) +{ + vcpu_load(vcpu); + kvm_arch_vcpu_set_regs(vcpu, regs, true); vcpu_put(vcpu); return 0; } @@ -9386,7 +9393,7 @@ static int sync_regs(struct kvm_vcpu *vcpu) return -EINVAL; if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_REGS) { - __set_regs(vcpu, &vcpu->run->s.regs.regs); + kvm_arch_vcpu_set_regs(vcpu, &vcpu->run->s.regs.regs, tr...

change from v6: fix typos and remove uncessary comments. change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3:

change from v6: fix typos and remove uncessary comments. change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3:

...p;vcpu->arch.st.stime, + &vcpu->arch.st.steal, sizeof(struct kvm_steal_time)))) + return; + + vcpu->arch.st.steal.preempted = 1; + + kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.st.stime, + &vcpu->arch.st.steal, sizeof(struct kvm_steal_time)); +} + void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) { + kvm_steal_time_set_preempted(vcpu); kvm_x86_ops->vcpu_put(vcpu); kvm_put_guest_fpu(vcpu); vcpu->arch.last_host_tsc = rdtsc(); -- 2.4.11

...rntraeger at de.ibm.com> + */ + +#include <linux/kvm.h> +#include <linux/kvm_host.h> +#include "kvm-s390.h" + +static int __diag_time_slice_end(struct kvm_vcpu *vcpu) +{ + VCPU_EVENT(vcpu, 5, "%s", "diag time slice end"); + vcpu->stat.diagnose_44++; + vcpu_put(vcpu); + schedule(); + vcpu_load(vcpu); + return 0; +} + +static int __diag_ipl_functions(struct kvm_vcpu *vcpu) +{ + unsigned int reg = vcpu->arch.sie_block->ipa & 0xf; + unsigned long subcode = vcpu->arch.guest_gprs[reg] & 0xffff; + + VCPU_EVENT(vcpu, 5, "diag ipl functions,...

This patch series introduces a backend for kvm to run on IBM System z machines that uses the mainframe's sie virtualization capability. This work runs 64bit guests on z800/z890/z900/z990/z9/z10 class machines with a 64bit linux host. Userspace will follow once we're done brushing it over. The patch queue consists of the following patches, which can be applied in sequence on top of kvm.git

This patch series introduces a backend for kvm to run on IBM System z machines that uses the mainframe's sie virtualization capability. This work runs 64bit guests on z800/z890/z900/z990/z9/z10 class machines with a 64bit linux host. Userspace will follow once we're done brushing it over. The patch queue consists of the following patches, which can be applied in sequence on top of kvm.git

...ruct kvm_steal_time)))) return; + vcpu->arch.st.steal.preempted = 0; + if (vcpu->arch.st.steal.version & 1) vcpu->arch.st.steal.version += 1; /* first time write, random junk */ @@ -2812,6 +2814,16 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) { + if (vcpu->arch.st.msr_val & KVM_MSR_ENABLED) + if (kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.st.stime, + &vcpu->arch.st.steal, + sizeof(struct kvm_steal_time)) == 0) { + vcpu->arch.st.steal.preempted = 1; + kvm_write_guest_cache...

change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code change, fix typos, update some comments change from v1: a simplier definition of default vcpu_is_preempted skip mahcine type check on ppc,

change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code change, fix typos, update some comments change from v1: a simplier definition of default vcpu_is_preempted skip mahcine type check on ppc,

...->arch.local_int.float_int->list) && + (!vcpu->arch.local_int.timer_due) && + !signal_pending(current)) { + set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_bh(&vcpu->arch.local_int.lock); + spin_unlock_bh(&vcpu->arch.local_int.float_int->lock); + vcpu_put(vcpu); + schedule(); + vcpu_load(vcpu); + spin_lock_bh(&vcpu->arch.local_int.float_int->lock); + spin_lock_bh(&vcpu->arch.local_int.lock); + } + __unset_cpu_idle(vcpu); + __set_current_state(TASK_RUNNING); + remove_wait_queue(&vcpu->wq, &wait); + spin_unlock_bh(&...