A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

KVM/arm updates for 5.2

Browse source 
- guest SVE support
 - guest Pointer Authentication support
 - Better discrimination of perf counters between host and guests
 -----BEGIN PGP SIGNATURE-----
 
 iQJJBAABCgAzFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAlzMM9kVHG1hcmMuenlu
 Z2llckBhcm0uY29tAAoJECPQ0LrRPXpDEp8P/iqZvvZlLdlnWQwluWh237c28kAo
 zELO0L7Wl+OJ66v2hzM+NPBi5kv/9pSv7AoKNLv3398YmKFt0n7yUB+MHi0BC9xi
 ZEp4etCOiVcqcWWeDiAXLdR9OQlb7IDBDc56s4V9HQgK3sEb4u8aEJIy/nDBVniv
 GVLMh1EOsrviIYso6UVxI1X7lPQevpCS0kv9/llhhzEj8QDxnQThjDuW3wrAyhQi
 F9XNVjAMW8rft7vvok9cxT4v+TR1HgUajquoSrjXuonWHgKnC9tSH/dHILNK8Zij
 5OApojGlZQrXIa5Sk3JOhGahVVY9Y+ewsw58J5bJxd0/xrKXnWk/Lann7NE+UcBf
 RJMHfanIO/+JJRzHhagejK7pqnYXD1PWBwF8z3Hefs1IVw4eBvPBGuhIULJ6+eSP
 +3JCwiOiwshG43gZlGmHcgvhPdeX4r/BlopWV9+0X/gAjcU1+3+ZG6J3jeAcC1Kx
 i481dSzlZ7Ar7VWDCk7WgcmDvUwHXtxq0HbqzQjPBO04kkakjdPZZrZIX3+Qhlem
 GpkPVb2z5h5KTk9Fx03ZXxPVdiOQh1UmNC8jlsYZPWcJVTLkySs7HWXZJe+WTs4Z
 NLuen/eA4/NCon+UA6XdIG5Ddn/J39UuF1lCApHPHn576rwz+HmqpcN59XiU6y4h
 XHIxzajFcXNpn802
 =fjph
 -----END PGP SIGNATURE-----

Merge tag 'kvmarm-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm updates for 5.2

- guest SVE support
- guest Pointer Authentication support
- Better discrimination of perf counters between host and guests

Conflicts:
	include/uapi/linux/kvm.h
This commit is contained in:
Paolo Bonzini 2019-05-15 23:41:43 +02:00
commit dd53f6102c
31 changed files with 1914 additions and 181 deletions
Download patch file Download diff file Expand all files Collapse all files

40
virt/kvm/arm/arm.c
View file

@ -56,7 +56,7 @@
__asm__(".arch_extension virt");
#endif
DEFINE_PER_CPU(kvm_cpu_context_t, kvm_host_cpu_state);
DEFINE_PER_CPU(kvm_host_data_t, kvm_host_data);
static DEFINE_PER_CPU(unsigned long, kvm_arm_hyp_stack_page);
/* Per-CPU variable containing the currently running vcpu. */
@ -357,8 +357,10 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
int *last_ran;
kvm_host_data_t *cpu_data;
last_ran = this_cpu_ptr(vcpu->kvm->arch.last_vcpu_ran);
cpu_data = this_cpu_ptr(&kvm_host_data);
/*
* We might get preempted before the vCPU actually runs, but
@ -370,18 +372,21 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
}
vcpu->cpu = cpu;
vcpu->arch.host_cpu_context = this_cpu_ptr(&kvm_host_cpu_state);
vcpu->arch.host_cpu_context = &cpu_data->host_ctxt;
kvm_arm_set_running_vcpu(vcpu);
kvm_vgic_load(vcpu);
kvm_timer_vcpu_load(vcpu);
kvm_vcpu_load_sysregs(vcpu);
kvm_arch_vcpu_load_fp(vcpu);
kvm_vcpu_pmu_restore_guest(vcpu);
if (single_task_running())
vcpu_clear_wfe_traps(vcpu);
else
vcpu_set_wfe_traps(vcpu);
vcpu_ptrauth_setup_lazy(vcpu);
}
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
@ -390,6 +395,7 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
kvm_vcpu_put_sysregs(vcpu);
kvm_timer_vcpu_put(vcpu);
kvm_vgic_put(vcpu);
kvm_vcpu_pmu_restore_host(vcpu);
vcpu->cpu = -1;
@ -542,6 +548,9 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
if (likely(vcpu->arch.has_run_once))
return 0;
if (!kvm_arm_vcpu_is_finalized(vcpu))
return -EPERM;
vcpu->arch.has_run_once = true;
if (likely(irqchip_in_kernel(kvm))) {
@ -1113,6 +1122,10 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
if (unlikely(!kvm_vcpu_initialized(vcpu)))
break;
r = -EPERM;
if (!kvm_arm_vcpu_is_finalized(vcpu))
break;
r = -EFAULT;
if (copy_from_user(&reg_list, user_list, sizeof(reg_list)))
break;
@ -1166,6 +1179,17 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
return kvm_arm_vcpu_set_events(vcpu, &events);
}
case KVM_ARM_VCPU_FINALIZE: {
int what;
if (!kvm_vcpu_initialized(vcpu))
return -ENOEXEC;
if (get_user(what, (const int __user *)argp))
return -EFAULT;
return kvm_arm_vcpu_finalize(vcpu, what);
}
default:
r = -EINVAL;
}
@ -1546,11 +1570,11 @@ static int init_hyp_mode(void)
}
for_each_possible_cpu(cpu) {
kvm_cpu_context_t *cpu_ctxt;
kvm_host_data_t *cpu_data;
cpu_ctxt = per_cpu_ptr(&kvm_host_cpu_state, cpu);
kvm_init_host_cpu_context(cpu_ctxt, cpu);
err = create_hyp_mappings(cpu_ctxt, cpu_ctxt + 1, PAGE_HYP);
cpu_data = per_cpu_ptr(&kvm_host_data, cpu);
kvm_init_host_cpu_context(&cpu_data->host_ctxt, cpu);
err = create_hyp_mappings(cpu_data, cpu_data + 1, PAGE_HYP);
if (err) {
kvm_err("Cannot map host CPU state: %d\n", err);
@ -1661,6 +1685,10 @@ int kvm_arch_init(void *opaque)
if (err)
return err;
err = kvm_arm_init_sve();
if (err)
return err;
if (!in_hyp_mode) {
err = init_hyp_mode();
if (err)