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/Linux-v6.1/Documentation/virt/kvm/x86/
Drunning-nested-guests.rst4 Running nested guests with KVM
7 A nested guest is the ability to run a guest inside another guest (it
15 | (Nested Guest) | | (Nested Guest) |
36 - L2 – level-2 guest; a VM running on L1, this is the "nested guest"
44 resulting in at least four levels in a nested setup — L0 (bare
46 (guest hypervisor), L3 (nested guest).
56 There are several scenarios where nested KVM can be useful, to name a
61 Provider, using nested KVM lets you rent a large enough "guest
63 multiple nested guests (level-2 guests), running different OSes, on
66 - Live migration of "guest hypervisors" and their nested guests, for
[all …]
Dnested-vmx.rst4 Nested VMX
15 The "Nested VMX" feature adds this missing capability - of running guest
16 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,
22 "The Turtles Project: Design and Implementation of Nested Virtualization",
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
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/Linux-v6.1/include/uapi/linux/
Ddevlink.h298 DEVLINK_ATTR_SELFTEST_RESULT, /* nested */
419 DEVLINK_ATTR_DPIPE_TABLES, /* nested */
420 DEVLINK_ATTR_DPIPE_TABLE, /* nested */
423 DEVLINK_ATTR_DPIPE_TABLE_MATCHES, /* nested */
424 DEVLINK_ATTR_DPIPE_TABLE_ACTIONS, /* nested */
427 DEVLINK_ATTR_DPIPE_ENTRIES, /* nested */
428 DEVLINK_ATTR_DPIPE_ENTRY, /* nested */
430 DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES, /* nested */
431 DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES, /* nested */
434 DEVLINK_ATTR_DPIPE_MATCH, /* nested */
[all …]
Dif_macsec.h45 MACSEC_ATTR_RXSC_CONFIG, /* config, nested macsec_rxsc_attrs */
46 MACSEC_ATTR_SA_CONFIG, /* config, nested macsec_sa_attrs */
47 MACSEC_ATTR_SECY, /* dump, nested macsec_secy_attrs */
48 MACSEC_ATTR_TXSA_LIST, /* dump, nested, macsec_sa_attrs for each TXSA */
49 MACSEC_ATTR_RXSC_LIST, /* dump, nested, macsec_rxsc_attrs for each RXSC */
50 MACSEC_ATTR_TXSC_STATS, /* dump, nested, macsec_txsc_stats_attr */
51 MACSEC_ATTR_SECY_STATS, /* dump, nested, macsec_secy_stats_attr */
52 MACSEC_ATTR_OFFLOAD, /* config, nested, macsec_offload_attrs */
83 MACSEC_RXSC_ATTR_SA_LIST, /* dump, nested */
84 MACSEC_RXSC_ATTR_STATS, /* dump, nested, macsec_rxsc_stats_attr */
[all …]
Dopenvswitch.h168 * extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows
172 * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes.
183 * extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes.
196 OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */
197 OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
199 OVS_PACKET_ATTR_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_*
273 OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
326 OVS_KEY_ATTR_ENCAP, /* Nested set of encapsulated attributes. */
341 OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */
356 OVS_KEY_ATTR_NSH, /* Nested set of ovs_nsh_key_* */
[all …]
Dnet_dropmon.h77 NET_DM_ATTR_IN_PORT, /* nested */
85 NET_DM_ATTR_STATS, /* nested */
86 NET_DM_ATTR_HW_STATS, /* nested */
90 NET_DM_ATTR_HW_ENTRIES, /* nested */
91 NET_DM_ATTR_HW_ENTRY, /* nested */
Dip_vs.h342 IPVS_CMD_ATTR_SERVICE, /* nested service attribute */
343 IPVS_CMD_ATTR_DEST, /* nested destination attribute */
344 IPVS_CMD_ATTR_DAEMON, /* nested sync daemon attribute */
356 * Used inside nested attribute IPVS_CMD_ATTR_SERVICE
371 IPVS_SVC_ATTR_STATS, /* nested attribute for service stats */
375 IPVS_SVC_ATTR_STATS64, /* nested attribute for service stats */
385 * Used inside nested attribute IPVS_CMD_ATTR_DEST
402 IPVS_DEST_ATTR_STATS, /* nested attribute for dest stats */
406 IPVS_DEST_ATTR_STATS64, /* nested attribute for dest stats */
422 * Used inside nested attribute IPVS_CMD_ATTR_DAEMON
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Dncsi.h55 * @NCSI_ATTR_PACKAGE_LIST: nested array of NCSI_PKG_ATTR attributes
84 * @NCSI_PKG_ATTR: nested array of package attributes
87 * @NCSI_PKG_ATTR_CHANNEL_LIST: nested array of NCSI_CHANNEL_ATTR attributes
105 * @NCSI_CHANNEL_ATTR: nested array of channel attributes
115 * @NCSI_CHANNEL_ATTR_VLAN_LIST: nested array of NCSI_CHANNEL_ATTR_VLAN_IDs
Dsmc.h95 /* SMC_NLA_LGR_D_V2_COMMON and SMC_NLA_LGR_R_V2_COMMON nested attributes */
106 /* SMC_NLA_LGR_R_V2 nested attributes */
165 /* SMC_NLA_DEV_PORT nested attributes */
195 /* SMC_NLA_STATS_T_TX(RX)_RMB_SIZE nested attributes */
196 /* SMC_NLA_STATS_TX(RX)PLOAD_SIZE nested attributes */
212 /* SMC_NLA_STATS_T_TX(RX)_RMB_STATS nested attributes */
226 /* SMC_NLA_STATS_SMCD_TECH and _SMCR_TECH nested attributes */
/Linux-v6.1/arch/x86/kvm/svm/
Dnested.c43 * TODO: track the cause of the nested page fault, and in nested_svm_inject_npf_exit()
61 u64 cr3 = svm->nested.ctl.nested_cr3; in nested_svm_get_tdp_pdptr()
76 return svm->nested.ctl.nested_cr3; in nested_svm_get_tdp_cr3()
94 svm->nested.ctl.nested_cr3); in nested_svm_init_mmu_context()
115 if (!(svm->nested.ctl.virt_ext & VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK)) in nested_vmcb_needs_vls_intercept()
134 g = &svm->nested.ctl; in recalc_intercepts()
152 /* We don't want to see VMMCALLs from a nested guest */ in recalc_intercepts()
176 * Merge L0's (KVM) and L1's (Nested VMCB) MSR permission bitmaps. The function
183 (struct hv_enlightenments *)svm->nested.ctl.reserved_sw; in nested_svm_vmrun_msrpm()
189 * - Nested hypervisor (L1) is attempting to launch the same L2 as in nested_svm_vmrun_msrpm()
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Dsvm.h168 * we cannot inject a nested vmexit yet. */
235 struct svm_nested_state nested; member
246 /* optional nested SVM features that are enabled for this guest */
476 return svm->vgif_enabled && (svm->nested.ctl.int_ctl & V_GIF_ENABLE_MASK); in nested_vgif_enabled()
485 return svm->nested.vmcb02.ptr; in get_vgif_vmcb()
522 return svm->nested.ctl.nested_ctl & SVM_NESTED_CTL_NP_ENABLE; in nested_npt_enabled()
563 /* nested.c */
566 #define NESTED_EXIT_DONE 1 /* Exit caused nested vmexit */
573 return is_guest_mode(vcpu) && (svm->nested.ctl.int_ctl & V_INTR_MASKING_MASK); in nested_svm_virtualize_tpr()
578 return vmcb12_is_intercept(&svm->nested.ctl, INTERCEPT_SMI); in nested_exit_on_smi()
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/Linux-v6.1/arch/x86/kvm/vmx/
Dnested.h41 return to_vmx(vcpu)->nested.cached_vmcs12; in get_vmcs12()
46 return to_vmx(vcpu)->nested.cached_shadow_vmcs12; in get_shadow_vmcs12()
51 * in vmx_set_nested_state; if it is satisfied, the nested state must include
59 return vmx->nested.current_vmptr != -1ull || in vmx_has_valid_vmcs12()
60 vmx->nested.hv_evmcs_vmptr != EVMPTR_INVALID; in vmx_has_valid_vmcs12()
67 return vmx->nested.vpid02 ? vmx->nested.vpid02 : vmx->vpid; in nested_get_vpid02()
82 * Return the cr0 value that a nested guest would read. This is a combination
99 return vmx_misc_cr3_count(to_vmx(vcpu)->nested.msrs.misc_low); in nested_cpu_vmx_misc_cr3_count()
109 return to_vmx(vcpu)->nested.msrs.misc_low & in nested_cpu_has_vmwrite_any_field()
115 return to_vmx(vcpu)->nested.msrs.misc_low & VMX_MISC_ZERO_LEN_INS; in nested_cpu_has_zero_length_injection()
[all …]
Dnested.c13 #include "nested.h"
181 if (to_vmx(vcpu)->nested.hv_evmcs_vmptr != EVMPTR_INVALID) in nested_vmx_failValid()
182 to_vmx(vcpu)->nested.need_vmcs12_to_shadow_sync = true; in nested_vmx_failValid()
195 if (vmx->nested.current_vmptr == INVALID_GPA && in nested_vmx_fail()
196 !evmptr_is_valid(vmx->nested.hv_evmcs_vmptr)) in nested_vmx_fail()
206 pr_debug_ratelimited("kvm: nested vmx abort, indicator %d\n", indicator); in nested_vmx_abort()
223 vmx->nested.need_vmcs12_to_shadow_sync = false; in vmx_disable_shadow_vmcs()
230 if (evmptr_is_valid(vmx->nested.hv_evmcs_vmptr)) { in nested_release_evmcs()
231 kvm_vcpu_unmap(vcpu, &vmx->nested.hv_evmcs_map, true); in nested_release_evmcs()
232 vmx->nested.hv_evmcs = NULL; in nested_release_evmcs()
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/Linux-v6.1/include/uapi/rdma/
Drdma_netlink.h380 RDMA_NLDEV_ATTR_RES_SUMMARY, /* nested table */
381 RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY, /* nested table */
385 RDMA_NLDEV_ATTR_RES_QP, /* nested table */
386 RDMA_NLDEV_ATTR_RES_QP_ENTRY, /* nested table */
425 RDMA_NLDEV_ATTR_RES_CM_ID, /* nested table */
426 RDMA_NLDEV_ATTR_RES_CM_ID_ENTRY, /* nested table */
437 RDMA_NLDEV_ATTR_RES_CQ, /* nested table */
438 RDMA_NLDEV_ATTR_RES_CQ_ENTRY, /* nested table */
443 RDMA_NLDEV_ATTR_RES_MR, /* nested table */
444 RDMA_NLDEV_ATTR_RES_MR_ENTRY, /* nested table */
[all …]
/Linux-v6.1/Documentation/networking/
Dethtool-netlink.rst53 Each request or reply message contains a nested attribute with common header.
89 type is used. For arbitrary length bitmaps, ethtool netlink uses a nested
109 Compact form: nested (bitset) atrribute contents:
134 Bit-by-bit form: nested (bitset) attribute contents:
141 | ``ETHTOOL_A_BITSET_BITS`` | nested | array of bits |
143 | | ``ETHTOOL_A_BITSET_BITS_BIT+`` | nested | one bit |
312 | ``ETHTOOL_A_STRSET_HEADER`` | nested | request header |
314 | ``ETHTOOL_A_STRSET_STRINGSETS`` | nested | string set to request |
316 | | ``ETHTOOL_A_STRINGSETS_STRINGSET+`` | nested | one string set |
324 | ``ETHTOOL_A_STRSET_HEADER`` | nested | reply header |
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/Linux-v6.1/include/uapi/linux/tc_act/
Dtc_tunnel_key.h32 TCA_TUNNEL_KEY_ENC_OPTS, /* Nested TCA_TUNNEL_KEY_ENC_OPTS_
44 TCA_TUNNEL_KEY_ENC_OPTS_GENEVE, /* Nested
48 TCA_TUNNEL_KEY_ENC_OPTS_VXLAN, /* Nested
52 TCA_TUNNEL_KEY_ENC_OPTS_ERSPAN, /* Nested
/Linux-v6.1/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-v6.1/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()
/Linux-v6.1/Documentation/dev-tools/
Dktap.rst16 KTAP test results describe a series of tests (which may be nested: i.e., test
29 information, in particular nested test results, may be lost. Also note that
46 start of the nested test results. This differs from TAP14, which uses a
59 Plan lines follow version lines to indicate the number of nested tests.
182 Nested tests
185 In KTAP, tests can be nested. This is done by having a test include within its
201 An example of a test with two nested subtests:
214 An example format with multiple levels of nested testing:
240 allows an arbitrary number of tests to be nested no yes
245 The TAP14 specification does permit nested tests, but instead of using another
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/Linux-v6.1/tools/perf/bench/
Depoll-ctl.c57 static unsigned int nested = 0; variable
79 …OPT_UINTEGER( 'N', "nested", &nested, "Nesting level epoll hierarchy (default is 0, no nesting)…
105 if (nested > EPOLL_MAXNESTS) in nest_epollfd()
106 nested = EPOLL_MAXNESTS; in nest_epollfd()
107 printinfo("Nesting level(s): %d\n", nested); in nest_epollfd()
109 epollfdp = calloc(nested, sizeof(int)); in nest_epollfd()
113 for (i = 0; i < nested; i++) { in nest_epollfd()
122 for (i = nested - 1; i; i--) { in nest_epollfd()
343 * Deal with nested epolls, if any. in bench_epoll_ctl()
345 if (nested) in bench_epoll_ctl()
Depoll-wait.c105 static unsigned int nested = 0; variable
138 …OPT_UINTEGER( 'N', "nested", &nested, "Nesting level epoll hierarchy (default is 0, no nesting)…
246 if (nested > EPOLL_MAXNESTS) in nest_epollfd()
247 nested = EPOLL_MAXNESTS; in nest_epollfd()
249 epollfdp = calloc(nested, sizeof(*epollfdp)); in nest_epollfd()
253 for (i = 0; i < nested; i++) { in nest_epollfd()
262 for (i = nested - 1; i; i--) { in nest_epollfd()
325 if (nested) in do_threads()
458 * Deal with nested epolls, if any. in bench_epoll_wait()
460 if (nested) in bench_epoll_wait()
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/Linux-v6.1/arch/powerpc/lib/
Dfeature-fixups-test.S318 /* Alt section with nested section in default case */ \
333 /* Alt section with nested section in else, default taken */ \
347 /* Alt section with nested section in else, else taken & nop */ \
361 /* Feature section with nested alt section, default taken */ \
373 /* Feature section with nested alt section, else taken */ \
385 /* Feature section with nested alt section, all nop'ed */ \
397 /* Nested alt sections, default with inner default taken */ \
417 /* Nested alt sections, default with inner else taken */ \
437 /* Nested alt sections, else with inner default taken */ \
457 /* Nested alt sections, else with inner else taken */ \
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/Linux-v6.1/arch/mips/kernel/
Dcps-vec-ns16550.S51 NESTED(_mips_cps_puts, 0, ra)
71 NESTED(_mips_cps_putx4, 0, ra)
88 NESTED(_mips_cps_putx8, 0, ra)
105 NESTED(_mips_cps_putx16, 0, ra)
122 NESTED(_mips_cps_putx32, 0, ra)
141 NESTED(_mips_cps_putx64, 0, ra)
Dgenex.S32 NESTED(except_vec3_generic, 0, sp)
51 NESTED(except_vec3_r4000, 0, sp)
149 NESTED(handle_int, PT_SIZE, sp)
244 NESTED(except_vec4, 0, sp)
254 NESTED(except_vec_ejtag_debug, 0, sp)
269 NESTED(except_vec_vi, 0, sp)
288 NESTED(except_vec_vi_handler, 0, sp)
345 NESTED(ejtag_debug_handler, PT_SIZE, sp)
434 NESTED(except_vec_nmi, 0, sp)
443 NESTED(nmi_handler, PT_SIZE, sp)
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/Linux-v6.1/drivers/net/wireless/mediatek/mt76/
Dtestmode.h37 * @MT76_TM_ATTR_TX_POWER: per-antenna tx power array (nested, u8 attrs)
41 * @MT76_TM_ATTR_STATS: statistics (nested, see &enum mt76_testmode_stats_attr)
49 * @MT76_TM_ATTR_DRV_DATA: driver specific netlink attrs (nested)
51 * @MT76_TM_ATTR_MAC_ADDRS: array of nested MAC addresses (nested)

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