TLBIP VAE1IS, TLBIP VAE1ISNXS | Jon's Arm Reference

Invalidates cached copies of translation table entries from TLBs that meet all the following requirements:

The entry is one of the following:
- A 128-bit stage 1 translation table entry, and one of the following applies:
  - TTL64 is 0.
  - TTL64 is 1 and TTL[3:2] is 0b00 or treated as 0b00.
- A 64-bit stage 1 translation table entry, and one of the following applies:
  - TTL64 is 0 and TTL[3:2] is 0b00 or treated as 0b00.
  - TTL64 is 1.
The entry would be required to translate the specified VA, and one of the following applies:
- The entry is from a level of lookup above the final level and matches the specified ASID.
- The entry is a global entry from the final level of lookup.
- The entry is a non-global entry from the final level of lookup that matches the specified ASID.
When EL2 is implemented and enabled in the current Security state:
- If the Effective value of HCR_EL2.{E2H, TGE} is not {1, 1}, the entry would be used with the current VMID and would be required to translate the specified VA using the EL1&0 translation regime for the Security state.
- If the Effective value of HCR_EL2.{E2H, TGE} is {1, 1}, the entry would be required to translate the specified VA using the EL2&0 translation regime for the Security state.
When EL2 is not implemented or is disabled in the current Security state, the entry would be required to translate the specified VA using the EL1&0 translation regime for the Security state.
The Security state is indicated by the value of SCR_EL3.NS if FEAT_RME is not implemented, or SCR_EL3.{NSE, NS} if FEAT_RME is implemented.

The invalidation applies to all PEs in the same Inner Shareable shareability domain as the PE that executes this System instruction.

If FEAT_TLBID is implemented, the set of PEs is reduced to be PEs that are also within the TLBI Domain specified in the TLBID field and System register configuration.

From Armv8.4, when a TLB maintenance instruction is generated to the Secure EL1&0 translation regime and is defined to pass a VMID argument, or would be defined to pass a VMID argument if SCR_EL3.EEL2==1, then:

A PE with SCR_EL3.EEL2==1 is not architecturally required to invalidate any entries in the Secure EL1&0 translation of a PE in the same required shareability domain with SCR_EL3.EEL2==0.
A PE with SCR_EL3.EEL2==0 is not architecturally required to invalidate any entries in the Secure EL1&0 translation of a PE in the same required shareability domain with SCR_EL3.EEL2==1.
A PE is architecturally required to invalidate all relevant entries in the Secure EL1&0 translation of a System MMU in the same required shareability domain with a VMID of 0.

If FEAT_XS is implemented, the nXS variant of this System instruction is defined.

It is IMPLEMENTATION SPECIFIC whether the TLBI System instruction with the nXS qualifier invalidates TLB entries with the XS attribute set to 1.

The TLBI System instruction without the nXS qualifier waits for all memory accesses using in-scope old translation information to complete before it is considered complete.

The TLBI System instruction with the nXS qualifier is considered complete when the subset of these memory accesses with XS attribute set to 0 are complete.

Configuration

This instruction is present only when (FEAT_D128 is implemented or FEAT_TLBID is implemented) and FEAT_AA64 is implemented. Otherwise, direct accesses to TLBIP VAE1IS, TLBIP VAE1ISNXS are UNDEFINED.

Attributes

Field descriptions

Bits [127:108]:

VA[55:12], bits [107:64]:

Bits[55:12] of the virtual address to match. Any appropriate TLB entries that match the ASID value (if appropriate) and VA will be affected by this System instruction.

The treatment of the low-order bits of this field depends on the translation granule size, as follows:

Where a 4KB translation granule is being used, all bits are valid and used for the invalidation.
Where a 16KB translation granule is being used, bits [1:0] of this field are RES0 and ignored when the instruction is executed, because VA[13:12] have no effect on the operation of the instruction.
Where a 64KB translation granule is being used, bits [3:0] of this field are RES0 and ignored when the instruction is executed, because VA[15:12] have no effect on the operation of the instruction.

ASID, bits [63:48]:

TTL, bits [47:44] when FEAT_TTL is implemented:

Translation Table Level. Indicates the level of the translation table walk that holds the leaf entry for the address being invalidated.

TTL	Meaning
0b00xx	No information supplied as to the translation table level. Hardware must assume that the entry can be from any level. In this case, TTL<1:0> is RES0.
0b01xx	The entry comes from a 4KB translation granule. The level of walk for the leaf level 0bxx is encoded as: 0b00 : Level 0. 0b01 : Level 1. 0b10 : Level 2. 0b11 : Level 3.
0b10xx	The entry comes from a 16KB translation granule. The level of walk for the leaf level 0bxx is encoded as: 0b00 : Reserved. Treat as if TTL<3:2> is 0b00. 0b01 : Level 1. 0b10 : Level 2. 0b11 : Level 3.
0b11xx	The entry comes from a 64KB translation granule. The level of walk for the leaf level 0bxx is encoded as: 0b00 : Reserved. Treat as if TTL<3:2> is 0b00. 0b01 : Level 1. 0b10 : Level 2. 0b11 : Level 3.

If an incorrect value of the TTL field is specified for the entry being invalidated by the instruction, then no entries are required by the architecture to be invalidated from the TLB.

Otherwise:

Bits [43:33]:

TTL64, bit [32] when FEAT_TLBID is implemented:

TTL64	Meaning
0b0	The TTL field applies to cached copies of VMSAv9-128 translation table entries.
0b1	The TTL field applies to cached copies of VMSAv8-64 translation table entries.

Otherwise:

Bits [31:16]:

TLBID, bits [15:0] when FEAT_TLBID is implemented:

Otherwise:

Executing TLBIP VAE1IS, TLBIP VAE1ISNXS

This system instruction is an alias of the SYSP instruction.

The following pseudocode describes traps which apply to the System instruction. For information about changes to the scope of the invalidation to the instruction under different conditions, see AArch64_TLBIP_VA() in the Pseudocode for AArch64 operation.

Accesses to this instruction use the following encodings in the System instruction encoding space:

TLBIP VAE1IS{, <Xt>, <Xt2>}

(op0 = 0b01, op1 = 0b000, CRn = 0b1000, CRm = 0b0011, op2 = 0b001)

if !((IsFeatureImplemented(FEAT_D128) || IsFeatureImplemented(FEAT_TLBID)) && IsFeatureImplemented(FEAT_AA64)) then Undefined(); elsif PSTATE.EL == EL0 then Undefined(); elsif PSTATE.EL == EL1 then if EL2Enabled() && (HCR_EL2().TTLB == '1' || HCR_EL2().TTLBIS == '1') && !(IsFeatureImplemented(FEAT_NV3) && EffectiveHCRX_EL2_NVTGE() == '1' && NVHCR_EL2().TGE == '1' && HCRX_EL2().NVnTTLBIS == '1') then AArch64_SystemAccessTrap(EL2, 0x14); elsif EL2Enabled() && IsFeatureImplemented(FEAT_FGT) && (!HaveEL(EL3) || SCR_EL3().FGTEn == '1') && HFGITR_EL2().TLBIVAE1IS == '1' then AArch64_SystemAccessTrap(EL2, 0x14); else AArch64_TLBIP_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID(), Broadcast_ISH, TLBILevel_Any, TLBI_AllAttr, X{128}(t, t2)); end; elsif PSTATE.EL == EL2 then AArch64_TLBIP_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID(), Broadcast_ISH, TLBILevel_Any, TLBI_AllAttr, X{128}(t, t2)); elsif PSTATE.EL == EL3 then if IsFeatureImplemented(FEAT_RME) && !ValidSecurityStateAtEL(EL1) then return; else AArch64_TLBIP_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID(), Broadcast_ISH, TLBILevel_Any, TLBI_AllAttr, X{128}(t, t2)); end; end;

TLBIP VAE1ISNXS{, <Xt>, <Xt2>}

(op0 = 0b01, op1 = 0b000, CRn = 0b1001, CRm = 0b0011, op2 = 0b001)

if !((IsFeatureImplemented(FEAT_D128) || IsFeatureImplemented(FEAT_TLBID)) && IsFeatureImplemented(FEAT_AA64)) then Undefined(); elsif !IsFeatureImplemented(FEAT_XS) then Undefined(); elsif PSTATE.EL == EL0 then Undefined(); elsif PSTATE.EL == EL1 then if EL2Enabled() && (HCR_EL2().TTLB == '1' || HCR_EL2().TTLBIS == '1') && !(IsFeatureImplemented(FEAT_NV3) && EffectiveHCRX_EL2_NVTGE() == '1' && NVHCR_EL2().TGE == '1' && HCRX_EL2().NVnTTLBIS == '1') then AArch64_SystemAccessTrap(EL2, 0x14); elsif EL2Enabled() && IsFeatureImplemented(FEAT_FGT) && (!HaveEL(EL3) || SCR_EL3().FGTEn == '1') && IsFeatureImplemented(FEAT_HCX) && (!IsHCRXEL2Enabled() || HCRX_EL2().FGTnXS == '0') && HFGITR_EL2().TLBIVAE1IS == '1' then AArch64_SystemAccessTrap(EL2, 0x14); else AArch64_TLBIP_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID(), Broadcast_ISH, TLBILevel_Any, TLBI_ExcludeXS, X{128}(t, t2)); end; elsif PSTATE.EL == EL2 then AArch64_TLBIP_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID(), Broadcast_ISH, TLBILevel_Any, TLBI_ExcludeXS, X{128}(t, t2)); elsif PSTATE.EL == EL3 then if IsFeatureImplemented(FEAT_RME) && !ValidSecurityStateAtEL(EL1) then return; else AArch64_TLBIP_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID(), Broadcast_ISH, TLBILevel_Any, TLBI_ExcludeXS, X{128}(t, t2)); end; end;

127	126	125	124	123	122	121	120	119	118	117	116	115	114	113	112	111	110	109	108	107	106	105	104	103	102	101	100	99	98	97	96
RES0																				VA[55:12]
95	94	93	92	91	90	89	88	87	86	85	84	83	82	81	80	79	78	77	76	75	74	73	72	71	70	69	68	67	66	65	64
VA[55:12]
63	62	61	60	59	58	57	56	55	54	53	52	51	50	49	48	47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32
ASID																TTL				RES0											TTL64
31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
RES0																TLBID