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/Linux-v5.15/arch/x86/kvm/svm/
Dnested.c61 if (vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_EXCEPTION_OFFSET + PF_VECTOR) && in svm_inject_page_fault_nested()
62 !svm->nested.nested_run_pending) { in svm_inject_page_fault_nested()
76 u64 cr3 = svm->nested.ctl.nested_cr3; in nested_svm_get_tdp_pdptr()
91 return svm->nested.ctl.nested_cr3; in nested_svm_get_tdp_cr3()
109 svm->nested.ctl.nested_cr3); in nested_svm_init_mmu_context()
134 g = &svm->nested.ctl; in recalc_intercepts()
206 if (!(vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_MSR_PROT))) in nested_svm_vmrun_msrpm()
217 offset = svm->nested.ctl.msrpm_base_pa + (p * 4); in nested_svm_vmrun_msrpm()
222 svm->nested.msrpm[p] = svm->msrpm[p] | value; in nested_svm_vmrun_msrpm()
225 svm->vmcb->control.msrpm_base_pa = __sme_set(__pa(svm->nested.msrpm)); in nested_svm_vmrun_msrpm()
[all …]
Dsvm.h154 struct svm_nested_state nested; member
444 return is_guest_mode(vcpu) && (svm->nested.ctl.int_ctl & V_INTR_MASKING_MASK); in nested_svm_virtualize_tpr()
449 return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_SMI); in nested_exit_on_smi()
454 return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_INTR); in nested_exit_on_intr()
459 return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_NMI); in nested_exit_on_nmi()
Dsvm.c174 static int nested = true; variable
175 module_param(nested, int, S_IRUGO);
641 msrpm = is_guest_mode(vcpu) ? to_svm(vcpu)->nested.msrpm: in msr_write_intercepted()
923 if (nested) { in svm_set_cpu_caps()
995 if (nested) { in svm_hardware_setup()
1107 return svm->nested.ctl.tsc_offset; in svm_get_l2_tsc_offset()
1258 svm->nested.vmcb12_gpa = INVALID_GPA; in init_vmcb()
1259 svm->nested.last_vmcb12_gpa = INVALID_GPA; in init_vmcb()
1565 (svm->nested.ctl.int_ctl & V_TPR_MASK)); in svm_clear_vintr()
1567 svm->vmcb->control.int_ctl |= svm->nested.ctl.int_ctl & in svm_clear_vintr()
[all …]
/Linux-v5.15/arch/x86/kvm/vmx/
Dnested.c180 if (to_vmx(vcpu)->nested.hv_evmcs_vmptr != EVMPTR_INVALID) in nested_vmx_failValid()
181 to_vmx(vcpu)->nested.need_vmcs12_to_shadow_sync = true; in nested_vmx_failValid()
194 if (vmx->nested.current_vmptr == -1ull && in nested_vmx_fail()
195 !evmptr_is_valid(vmx->nested.hv_evmcs_vmptr)) in nested_vmx_fail()
222 vmx->nested.need_vmcs12_to_shadow_sync = false; in vmx_disable_shadow_vmcs()
229 if (evmptr_is_valid(vmx->nested.hv_evmcs_vmptr)) { in nested_release_evmcs()
230 kvm_vcpu_unmap(vcpu, &vmx->nested.hv_evmcs_map, true); in nested_release_evmcs()
231 vmx->nested.hv_evmcs = NULL; in nested_release_evmcs()
234 vmx->nested.hv_evmcs_vmptr = EVMPTR_INVALID; in nested_release_evmcs()
286 if (!vmx->nested.vmxon && !vmx->nested.smm.vmxon) in free_nested()
[all …]
Dnested.h42 return to_vmx(vcpu)->nested.cached_vmcs12; in get_vmcs12()
47 return to_vmx(vcpu)->nested.cached_shadow_vmcs12; in get_shadow_vmcs12()
60 return vmx->nested.current_vmptr != -1ull || in vmx_has_valid_vmcs12()
61 vmx->nested.hv_evmcs_vmptr != EVMPTR_INVALID; in vmx_has_valid_vmcs12()
68 return vmx->nested.vpid02 ? vmx->nested.vpid02 : vmx->vpid; in nested_get_vpid02()
100 return vmx_misc_cr3_count(to_vmx(vcpu)->nested.msrs.misc_low); in nested_cpu_vmx_misc_cr3_count()
110 return to_vmx(vcpu)->nested.msrs.misc_low & in nested_cpu_has_vmwrite_any_field()
116 return to_vmx(vcpu)->nested.msrs.misc_low & VMX_MISC_ZERO_LEN_INS; in nested_cpu_has_zero_length_injection()
121 return to_vmx(vcpu)->nested.msrs.procbased_ctls_high & in nested_cpu_supports_monitor_trap_flag()
127 return to_vmx(vcpu)->nested.msrs.secondary_ctls_high & in nested_cpu_has_vmx_shadow_vmcs()
[all …]
Dvmx.c112 static bool __read_mostly nested = 1; variable
113 module_param(nested, bool, S_IRUGO);
1138 if (vmx->nested.need_vmcs12_to_shadow_sync) in vmx_prepare_switch_to_guest()
1576 vmx->nested.mtf_pending = true; in vmx_update_emulated_instruction()
1578 vmx->nested.mtf_pending = false; in vmx_update_emulated_instruction()
1731 return nested && guest_cpuid_has(vcpu, X86_FEATURE_VMX); in nested_vmx_allowed()
1746 if (!nested) in vmx_get_msr_feature()
1748 return vmx_get_vmx_msr(&vmcs_config.nested, msr->index, &msr->data); in vmx_get_msr_feature()
1836 if (vmx_get_vmx_msr(&vmx->nested.msrs, msr_info->index, in vmx_get_msr()
1847 vmx->nested.enlightened_vmcs_enabled) in vmx_get_msr()
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/Linux-v5.15/Documentation/virt/kvm/
Drunning-nested-guests.rst2 Running nested guests with KVM
5 A nested guest is the ability to run a guest inside another guest (it
34 - L2 – level-2 guest; a VM running on L1, this is the "nested guest"
42 resulting in at least four levels in a nested setup — L0 (bare
44 (guest hypervisor), L3 (nested guest).
54 There are several scenarios where nested KVM can be useful, to name a
59 Provider, using nested KVM lets you rent a large enough "guest
61 multiple nested guests (level-2 guests), running different OSes, on
64 - Live migration of "guest hypervisors" and their nested guests, for
74 Enabling "nested" (x86)
[all …]
Dindex.rst18 nested-vmx
32 running-nested-guests
Dnested-vmx.rst16 hypervisors (which use VMX) with their own nested guests. It does so by
20 We describe in much greater detail the theory behind the nested VMX feature,
32 In nested virtualization, we have three levels: The host (KVM), which we call
33 L0, the guest hypervisor, which we call L1, and its nested guest, which we
37 Running nested VMX
40 The nested VMX feature is enabled by default since Linux kernel v4.20. For
41 older Linux kernel, it can be enabled by giving the "nested=1" option to the
65 As a VMX implementation, nested VMX presents a VMCS structure to L1.
/Linux-v5.15/Documentation/networking/
Dethtool-netlink.rst48 Each request or reply message contains a nested attribute with common header.
84 type is used. For arbitrary length bitmaps, ethtool netlink uses a nested
104 Compact form: nested (bitset) atrribute contents:
129 Bit-by-bit form: nested (bitset) attribute contents:
136 | ``ETHTOOL_A_BITSET_BITS`` | nested | array of bits |
138 | | ``ETHTOOL_A_BITSET_BITS_BIT+`` | nested | one bit |
301 | ``ETHTOOL_A_STRSET_HEADER`` | nested | request header |
303 | ``ETHTOOL_A_STRSET_STRINGSETS`` | nested | string set to request |
305 | | ``ETHTOOL_A_STRINGSETS_STRINGSET+`` | nested | one string set |
313 | ``ETHTOOL_A_STRSET_HEADER`` | nested | reply header |
[all …]
/Linux-v5.15/tools/perf/bench/
Depoll-wait.c104 static unsigned int nested = 0; variable
137 …OPT_UINTEGER( 'N', "nested", &nested, "Nesting level epoll hierarchy (default is 0, no nesting)…
245 if (nested > EPOLL_MAXNESTS) in nest_epollfd()
246 nested = EPOLL_MAXNESTS; in nest_epollfd()
248 epollfdp = calloc(nested, sizeof(*epollfdp)); in nest_epollfd()
252 for (i = 0; i < nested; i++) { in nest_epollfd()
261 for (i = nested - 1; i; i--) { in nest_epollfd()
317 if (nested) in do_threads()
446 if (nested) in bench_epoll_wait()
451 printinfo("Nesting level(s): %d\n", nested); in bench_epoll_wait()
Depoll-ctl.c56 static unsigned int nested = 0; variable
78 …OPT_UINTEGER( 'N', "nested", &nested, "Nesting level epoll hierarchy (default is 0, no nesting)…
104 if (nested > EPOLL_MAXNESTS) in nest_epollfd()
105 nested = EPOLL_MAXNESTS; in nest_epollfd()
106 printinfo("Nesting level(s): %d\n", nested); in nest_epollfd()
108 epollfdp = calloc(nested, sizeof(int)); in nest_epollfd()
112 for (i = 0; i < nested; i++) { in nest_epollfd()
121 for (i = nested - 1; i; i--) { in nest_epollfd()
331 if (nested) in bench_epoll_ctl()
/Linux-v5.15/net/netfilter/ipset/
Dip_set_bitmap_gen.h95 struct nlattr *nested; in mtype_head() local
98 nested = nla_nest_start(skb, IPSET_ATTR_DATA); in mtype_head()
99 if (!nested) in mtype_head()
108 nla_nest_end(skb, nested); in mtype_head()
207 struct nlattr *adt, *nested; in mtype_list() local
229 nested = nla_nest_start(skb, IPSET_ATTR_DATA); in mtype_list()
230 if (!nested) { in mtype_list()
243 nla_nest_end(skb, nested); in mtype_list()
253 nla_nest_cancel(skb, nested); in mtype_list()
Dip_set_list_set.c462 struct nlattr *nested; in list_set_head() local
465 nested = nla_nest_start(skb, IPSET_ATTR_DATA); in list_set_head()
466 if (!nested) in list_set_head()
475 nla_nest_end(skb, nested); in list_set_head()
487 struct nlattr *atd, *nested; in list_set_list() local
505 nested = nla_nest_start(skb, IPSET_ATTR_DATA); in list_set_list()
506 if (!nested) in list_set_list()
513 nla_nest_end(skb, nested); in list_set_list()
523 nla_nest_cancel(skb, nested); in list_set_list()
/Linux-v5.15/scripts/coccinelle/locks/
Dflags.cocci2 /// Find nested lock+irqsave functions that use the same flags variables
73 cocci.print_secs("nested lock+irqsave that reuses flags",p2)
80 msg="ERROR: nested lock+irqsave that reuses flags from line %s." % (p1[0].line)
/Linux-v5.15/arch/um/os-Linux/
Dsignal.c184 int nested, bail; in hard_handler() local
200 nested = pending & 1; in hard_handler()
215 if (!nested) in hard_handler()
216 pending = from_irq_stack(nested); in hard_handler()
/Linux-v5.15/arch/powerpc/kvm/
Dbook3s_hv_p9_entry.c97 struct kvm_nested_guest *nested = vcpu->arch.nested; in switch_mmu_to_guest_radix() local
100 lpid = nested ? nested->shadow_lpid : kvm->arch.lpid; in switch_mmu_to_guest_radix()
189 struct kvm_nested_guest *nested = vcpu->arch.nested; in kvmhv_vcpu_entry_p9() local
312 kvmppc_check_need_tlb_flush(kvm, vc->pcpu, nested); in kvmhv_vcpu_entry_p9()
Dbook3s_64_mmu_radix.c101 if (vcpu->arch.nested) in kvmhv_copy_tofrom_guest_radix()
102 lpid = vcpu->arch.nested->shadow_lpid; in kvmhv_copy_tofrom_guest_radix()
781 bool kvmppc_hv_handle_set_rc(struct kvm *kvm, bool nested, bool writing, in kvmppc_hv_handle_set_rc() argument
797 if (nested) in kvmppc_hv_handle_set_rc()
1293 struct kvm_nested_guest *nested; in debugfs_radix_read() local
1329 nested = NULL; in debugfs_radix_read()
1335 if (nested) { in debugfs_radix_read()
1336 kvmhv_put_nested(nested); in debugfs_radix_read()
1337 nested = NULL; in debugfs_radix_read()
1348 nested = kvmhv_get_nested(kvm, p->lpid, false); in debugfs_radix_read()
[all …]
/Linux-v5.15/Documentation/x86/
Dkernel-stacks.rst28 hardware interrupt (i.e. not a nested hardware interrupt) then the
54 nested IST interrupts then the handler must adjust the IST values on
59 nested. For example, a debug interrupt can safely be interrupted by an
62 IST events with the same code to be nested. However in most cases, the
95 To handle nested #DB correctly there exist two instances of DB stacks. On
97 so a nested #DB starts from a clean stack. The nested #DB switches
/Linux-v5.15/arch/x86/kvm/
DMakefile30 vmx/evmcs.o vmx/nested.o vmx/posted_intr.o
33 kvm-amd-y += svm/svm.o svm/vmenter.o svm/pmu.o svm/nested.o svm/avic.o svm/sev.o
/Linux-v5.15/Documentation/filesystems/
Dceph.rst23 * Recursive accounting (nested files, directories, bytes)
56 a snapshot on any subdirectory (and its nested contents) in the
60 Ceph also provides some recursive accounting on directories for nested
62 system will reveal the total number of nested regular files and
63 subdirectories, and a summation of all nested file sizes. This makes
129 the summation of file sizes over all files nested beneath that
/Linux-v5.15/arch/um/kernel/
Dirq.c711 int nested; in to_irq_stack() local
733 nested = (ti->real_thread != NULL); in to_irq_stack()
734 if (!nested) { in to_irq_stack()
747 *mask_out |= mask | nested; in to_irq_stack()
751 unsigned long from_irq_stack(int nested) in from_irq_stack() argument
/Linux-v5.15/scripts/coccinelle/misc/
Dirqf_oneshot.cocci106 …ING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)"
112 …ING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)"
/Linux-v5.15/tools/perf/scripts/python/Perf-Trace-Util/
DBuild3 …EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs
/Linux-v5.15/arch/x86/hyperv/
DMakefile2 obj-y := hv_init.o mmu.o nested.o irqdomain.o

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