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KVM: arm64: Remove all traces of FEAT_TME

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FEAT_TME has been dropped from the architecture. Retrospectively.
I'm sure someone is crying somewhere, but most of us won't.

Clean-up time.

Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260202184329.2724080-18-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier
2026-02-02 18:43:26 +00:00
parent d784cfe697
commit d65bf6e317
5 changed files with 3 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm64/kvm/config.c
View File

@@ -187,7 +187,6 @@ struct reg_feat_map_desc {
#define FEAT_RME ID_AA64PFR0_EL1, RME, IMP
#define FEAT_MPAM ID_AA64PFR0_EL1, MPAM, 1
#define FEAT_S2FWB ID_AA64MMFR2_EL1, FWB, IMP
#define FEAT_TME ID_AA64ISAR0_EL1, TME, IMP
#define FEAT_TWED ID_AA64MMFR1_EL1, TWED, IMP
#define FEAT_E2H0 ID_AA64MMFR4_EL1, E2H0, IMP
#define FEAT_SRMASK ID_AA64MMFR4_EL1, SRMASK, IMP
@@ -991,7 +990,6 @@ static const struct reg_bits_to_feat_map hcr_feat_map[] = {
NEEDS_FEAT(HCR_EL2_FIEN, feat_rasv1p1),
NEEDS_FEAT(HCR_EL2_GPF, FEAT_RME),
NEEDS_FEAT(HCR_EL2_FWB, FEAT_S2FWB),
NEEDS_FEAT(HCR_EL2_TME, FEAT_TME),
NEEDS_FEAT(HCR_EL2_TWEDEL |
HCR_EL2_TWEDEn,
FEAT_TWED),
@@ -1102,11 +1100,6 @@ static const struct reg_bits_to_feat_map sctlr_el1_feat_map[] = {
NEEDS_FEAT(SCTLR_EL1_EnRCTX, FEAT_SPECRES),
NEEDS_FEAT(SCTLR_EL1_DSSBS, FEAT_SSBS),
NEEDS_FEAT(SCTLR_EL1_TIDCP, FEAT_TIDCP1),
NEEDS_FEAT(SCTLR_EL1_TME0 |
SCTLR_EL1_TME |
SCTLR_EL1_TMT0 |
SCTLR_EL1_TMT,
FEAT_TME),
NEEDS_FEAT(SCTLR_EL1_TWEDEL |
SCTLR_EL1_TWEDEn,
FEAT_TWED),

5
arch/arm64/kvm/nested.c
View File

@@ -1505,11 +1505,6 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
u64 orig_val = val;
switch (reg) {
case SYS_ID_AA64ISAR0_EL1:
/* Support everything but TME */
val &= ~ID_AA64ISAR0_EL1_TME;
break;
case SYS_ID_AA64ISAR1_EL1:
/* Support everything but LS64 and Spec Invalidation */
val &= ~(ID_AA64ISAR1_EL1_LS64 |

12
arch/arm64/tools/sysreg
View File

@@ -1856,10 +1856,7 @@ UnsignedEnum 31:28 RDM
0b0000 NI
0b0001 IMP
EndEnum
UnsignedEnum 27:24 TME
0b0000 NI
0b0001 IMP
EndEnum
Res0 27:24
UnsignedEnum 23:20 ATOMIC
0b0000 NI
0b0010 IMP
@@ -2432,10 +2429,7 @@ Field 57 EPAN
Field 56 EnALS
Field 55 EnAS0
Field 54 EnASR
Field 53 TME
Field 52 TME0
Field 51 TMT
Field 50 TMT0
Res0 53:50
Field 49:46 TWEDEL
Field 45 TWEDEn
Field 44 DSSBS
@@ -3840,7 +3834,7 @@ Field 43 NV1
Field 42 NV
Field 41 API
Field 40 APK
Field 39 TME
Res0 39
Field 38 MIOCNCE
Field 37 TEA
Field 36 TERR

1
tools/perf/Documentation/perf-arm-spe.txt
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@@ -176,7 +176,6 @@ and inv_event_filter are:
bit 10 - Remote access (FEAT_SPEv1p4)
bit 11 - Misaligned access (FEAT_SPEv1p1)
bit 12-15 - IMPLEMENTATION DEFINED events (when implemented)
bit 16 - Transaction (FEAT_TME)
bit 17 - Partial or empty SME or SVE predicate (FEAT_SPEv1p1)
bit 18 - Empty SME or SVE predicate (FEAT_SPEv1p1)
bit 19 - L2D access (FEAT_SPEv1p4)

1
tools/testing/selftests/kvm/arm64/set_id_regs.c
View File

@@ -91,7 +91,6 @@ static const struct reg_ftr_bits ftr_id_aa64isar0_el1[] = {
REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, SM3, 0),
REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, SHA3, 0),
REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, RDM, 0),
REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, TME, 0),
REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, ATOMIC, 0),
REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, CRC32, 0),
REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, SHA2, 0),