KVM: arm64: Remove all traces of FEAT_TME

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 <[email protected]>
Tested-by: Fuad Tabba <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Zyngier <[email protected]>

Author: Marc Zyngier

arch/arm64/kvm/config.c

@@ -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),

arch/arm64/kvm/nested.c

@@ -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	|

arch/arm64/tools/sysreg

@@ -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

tools/perf/Documentation/perf-arm-spe.txt

@@ -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)

tools/testing/selftests/kvm/arm64/set_id_regs.c

@@ -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),