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xemu/target/arm/tcg
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Peter Maydell b9377d1c5f target/arm: Always honour HCR_EL2.TSC when HCR_EL2.NV is set 
The HCR_EL2.TSC trap for trapping EL1 execution of SMC instructions
has a behaviour change for FEAT_NV when EL3 is not implemented:

 * in older architecture versions TSC was required to have no
   effect (i.e. the SMC insn UNDEFs)
 * with FEAT_NV, when HCR_EL2.NV == 1 the trap must apply
   (i.e. SMC traps to EL2, as it already does in all cases when
   EL3 is implemented)
 * in newer architecture versions, the behaviour either without
   FEAT_NV or with FEAT_NV and HCR_EL2.NV == 0 is relaxed to
   an IMPDEF choice between UNDEF and trap-to-EL2 (i.e. it is
   permitted to always honour HCR_EL2.TSC) for AArch64 only

Add the condition to honour the trap bit when HCR_EL2.NV == 1.  We
leave the HCR_EL2.NV == 0 case with the existing (UNDEF) behaviour,
as our IMPDEF choice (both because it avoids a behaviour change
for older CPU models and because we'd have to distinguish AArch32
from AArch64 if we opted to trap to EL2).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Miguel Luis <miguel.luis@oracle.com>
 		2024-01-09 14:43:46 +00:00
..
a32-uncond.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
a32.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
a64.decode target/arm: Fix A64 LDRA immediate decode 2023-11-06 15:00:29 +00:00
arm_ldst.h target/arm: Move translate-a32.h, arm_ldst.h, sve_ldst_internal.h to tcg/ 2023-05-12 15:43:36 +01:00
cpu32.c target/arm/tcg: enable PMU feature for Cortex-A8 and A9 2023-11-13 16:31:41 +00:00
cpu64.c target/arm: Set CTR_EL0.{IDC,DIC} for the 'max' CPU 2024-01-09 14:43:43 +00:00
crypto_helper.c crypto: Create sm4_subword 2023-09-11 11:45:55 +10:00
helper-a64.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
helper-a64.h target/arm: Implement the CPY* instructions 2023-09-21 16:07:14 +01:00
helper-mve.h target/arm: Move helper-{a64,mve,sme,sve}.h to tcg/ 2023-05-12 15:43:37 +01:00
helper-sme.h target/arm: Move helper-{a64,mve,sme,sve}.h to tcg/ 2023-05-12 15:43:37 +01:00
helper-sve.h target/arm: Move helper-{a64,mve,sme,sve}.h to tcg/ 2023-05-12 15:43:37 +01:00
hflags.c target/arm: Enable trapping of ERET for FEAT_NV 2024-01-09 14:43:45 +00:00
iwmmxt_helper.c target/arm: move helpers to tcg/ 2023-02-27 13:27:04 +00:00
m-nocp.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
m_helper.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
meson.build target/arm/tcg: Don't build AArch64 decodetree files for qemu-system-arm 2023-07-31 11:41:21 +01:00
mte_helper.c target/arm: Correct MTE tag checking for reverse-copy MOPS 2023-11-13 13:15:50 +00:00
mve.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
mve_helper.c target/arm/tcg: Clean up local variable shadowing 2023-09-29 10:07:14 +02:00
neon-dp.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
neon-ls.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
neon-shared.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
neon_helper.c target/arm: move helpers to tcg/ 2023-02-27 13:27:04 +00:00
op_helper.c target/arm: Always honour HCR_EL2.TSC when HCR_EL2.NV is set 2024-01-09 14:43:46 +00:00
pauth_helper.c target/arm: Move feature test functions to their own header 2023-10-27 11:44:32 +01:00
psci.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
sme-fa64.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
sme.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
sme_helper.c target/arm: Fix SME FMOPA (16-bit), BFMOPA 2023-11-20 15:17:00 +00:00
sve.decode target/arm: Demultiplex AESE and AESMC 2023-07-08 07:30:18 +01:00
sve_helper.c target/arm: Replace TARGET_PAGE_ENTRY_EXTRA 2023-10-03 08:01:02 -07:00
sve_ldst_internal.h target/arm: Move translate-a32.h, arm_ldst.h, sve_ldst_internal.h to tcg/ 2023-05-12 15:43:36 +01:00
t16.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
t32.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
tlb_helper.c target/arm: Move feature test functions to their own header 2023-10-27 11:44:32 +01:00
translate-a32.h tcg: Rename cpu_env to tcg_env 2023-10-03 08:01:02 -07:00
translate-a64.c target/arm: Enable trapping of ERET for FEAT_NV 2024-01-09 14:43:45 +00:00
translate-a64.h tcg: Rename cpu_env to tcg_env 2023-10-03 08:01:02 -07:00
translate-m-nocp.c tcg: Rename cpu_env to tcg_env 2023-10-03 08:01:02 -07:00
translate-mve.c tcg: Rename cpu_env to tcg_env 2023-10-03 08:01:02 -07:00
translate-neon.c tcg: Rename cpu_env to tcg_env 2023-10-03 08:01:02 -07:00
translate-sme.c tcg: Rename cpu_env to tcg_env 2023-10-03 08:01:02 -07:00
translate-sve.c target/arm: Fix SVE STR increment 2023-11-02 13:36:45 +00:00
translate-vfp.c tcg: Rename cpu_env to tcg_env 2023-10-03 08:01:02 -07:00
translate.c target/arm: Permit T32 LDM with single register 2023-10-19 14:32:13 +01:00
translate.h target/arm: Enable trapping of ERET for FEAT_NV 2024-01-09 14:43:45 +00:00
vec_helper.c target/arm: Use clmul_64 2023-09-15 13:57:00 +00:00
vec_internal.h target/arm: Use clmul_16* routines 2023-09-15 13:57:00 +00:00
vfp-uncond.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00
vfp.decode target/arm: move translate modules to tcg/ 2023-02-27 13:27:04 +00:00