OpenE2K/qemu-e2k
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qemu-e2k/target/arm
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Richard Henderson 3b07a936d3 target/arm: Look up ARMCPRegInfo at runtime 
Do not encode the pointer as a constant in the opcode stream.
This pointer is specific to the cpu that first generated the
translation, which runs into problems with both hot-pluggable
cpus and user-only threads, as cpus are removed. It's also a
potential correctness issue in the theoretical case of a
slightly-heterogenous system, because if CPU 0 generates a
TB and then CPU 1 executes it, CPU 1 will end up using CPU 0's
hash table, which might have a wrong set of registers in it.
(All our current systems are either completely homogenous,
M-profile, or have CPUs sufficiently different that they
wouldn't be sharing TBs anyway because the differences would
show up in the TB flags, so the correctness issue is only
theoretical, not practical.)

Perform the lookup in either helper_access_check_cp_reg,
or a new helper_lookup_cp_reg.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230106194451.1213153-3-richard.henderson@linaro.org
[PMM: added note in commit message about correctness issue]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
..
hvf Fix 'writeable' typos 2022-06-08 19:38:47 +01:00
a32-uncond.decode
a32.decode
arch_dump.c dump: Replace opaque DumpState pointer with a typed one 2022-10-06 19:30:43 +04:00
arm_ldst.h
arm-powerctl.c
arm-powerctl.h
common-semi-target.h semihosting: Split out common-semi-target.h 2022-06-28 04:35:07 +05:30
cpregs.h target/arm: Move define_debug_regs() to debug_helper.c 2022-07-07 11:37:33 +01:00
cpu64.c target/arm: cleanup cpu includes 2023-01-05 12:28:37 +00:00
cpu_tcg.c target/arm: Add ARM Cortex-R52 CPU 2023-01-05 11:51:09 +00:00
cpu-param.h target/arm: Enable TARGET_TB_PCREL 2022-10-20 11:28:29 +01:00
cpu-qom.h target/arm: Convert to 3-phase reset 2022-12-16 15:58:15 +00:00
cpu.c target/arm: cleanup cpu includes 2023-01-05 12:28:37 +00:00
cpu.h target/arm: implement DBGCLAIM registers 2023-01-23 13:32:38 +00:00
crypto_helper.c
debug_helper.c target/arm: provide stubs for more external debug registers 2023-01-23 13:32:38 +00:00
gdbstub64.c target/arm: Rename sve_zcr_len_for_el to sve_vqm1_for_el 2022-06-08 19:38:57 +01:00
gdbstub.c Fix 'writeable' typos 2022-06-08 19:38:47 +01:00
helper-a64.c
helper-a64.h
helper-mve.h
helper-sme.h target/arm/sme: Unify set_pstate() SM/ZA helpers as set_svcr() 2023-01-23 13:32:38 +00:00
helper-sve.h target/arm: Implement REVD 2022-07-11 13:43:51 +01:00
helper.c target/arm/sme: Unify set_pstate() SM/ZA helpers as set_svcr() 2023-01-23 13:32:38 +00:00
helper.h target/arm: Look up ARMCPRegInfo at runtime 2023-01-23 13:32:38 +00:00
hvf_arm.h
idau.h
internals.h target/arm: Enable TTBCR_EAE for ARMv8-R AArch32 2023-01-05 11:51:09 +00:00
iwmmxt_helper.c
Kconfig
kvm64.c target/arm: Implement ID_DFR1 2022-09-14 11:19:40 +01:00
kvm_arm.h target/arm: Use uint32_t instead of bitmap for sve vq's 2022-06-08 19:38:57 +01:00
kvm-consts.h hw/misc: Move some arm-related files from specific_ss into softmmu_ss 2022-12-15 17:37:47 +00:00
kvm-stub.c
kvm.c * scsi-disk: support setting CD-ROM block size via device options 2022-10-13 13:55:03 -04:00
m_helper.c target/arm: Don't set EXC_RETURN.ES if Security Extension not present 2023-01-23 13:32:38 +00:00
m-nocp.decode
machine.c target/arm: Add PMSAv8r registers 2023-01-05 11:51:09 +00:00
meson.build target/arm: Trap non-streaming usage when Streaming SVE is active 2022-07-11 13:19:35 +01:00
monitor.c qapi machine: Elide redundant has_FOO in generated C 2022-12-14 20:04:47 +01:00
mte_helper.c target/arm: Fix physical address resolution for MTE 2023-01-23 13:32:38 +00:00
mve_helper.c target/arm: Use expand_pred_b in mve_helper.c 2022-06-08 19:38:58 +01:00
mve.decode
neon_helper.c
neon-dp.decode
neon-ls.decode
neon-shared.decode
op_addsub.h
op_helper.c target/arm: Look up ARMCPRegInfo at runtime 2023-01-23 13:32:38 +00:00
pauth_helper.c
psci.c
ptw.c target/arm: Fix in_debug path in S1_ptw_translate 2023-01-23 13:32:38 +00:00
sme_helper.c target/arm/sme: Unify set_pstate() SM/ZA helpers as set_svcr() 2023-01-23 13:32:38 +00:00
sme-fa64.decode target/arm: Mark LD1RO as non-streaming 2022-07-11 13:19:35 +01:00
sme.decode target/arm: Implement SME integer outer product 2022-07-11 13:43:51 +01:00
sve_helper.c target/arm: Fix sve_probe_page 2023-01-12 16:50:19 +00:00
sve_ldst_internal.h target/arm: Use probe_access_full for MTE 2022-10-20 11:27:49 +01:00
sve.decode target/arm: Implement SCLAMP, UCLAMP 2022-07-11 13:43:51 +01:00
syndrome.h target/arm: Add syn_smetrap 2022-06-27 11:18:17 +01:00
t16.decode
t32.decode
tlb_helper.c target/arm: Enable TTBCR_EAE for ARMv8-R AArch32 2023-01-05 11:51:09 +00:00
trace-events
trace.h
translate-a32.h target/arm: Change gen_*set_pc_im to gen_*update_pc 2022-10-20 11:27:52 +01:00
translate-a64.c target/arm: Look up ARMCPRegInfo at runtime 2023-01-23 13:32:38 +00:00
translate-a64.h target/arm: Export unpredicated ld/st from translate-sve.c 2022-07-11 13:19:35 +01:00
translate-m-nocp.c target/arm: Enable TARGET_TB_PCREL 2022-10-20 11:28:29 +01:00
translate-mve.c target/arm: Change gen_exception_insn* to work on displacements 2022-10-20 11:27:52 +01:00
translate-neon.c target/arm: Fix alignment for VLD4.32 2022-09-22 16:38:27 +01:00
translate-sme.c target/arm: Implement SME integer outer product 2022-07-11 13:43:51 +01:00
translate-sve.c target/arm: Add MO_128 entry to pred_esz_masks[] 2022-07-26 13:38:23 +01:00
translate-vfp.c target/arm: Change gen_exception_insn* to work on displacements 2022-10-20 11:27:52 +01:00
translate.c target/arm: Look up ARMCPRegInfo at runtime 2023-01-23 13:32:38 +00:00
translate.h target/arm: Look up ARMCPRegInfo at runtime 2023-01-23 13:32:38 +00:00
vec_helper.c target/arm: Implement SCLAMP, UCLAMP 2022-07-11 13:43:51 +01:00
vec_internal.h target/arm: Export bfdotadd from vec_helper.c 2022-06-08 19:38:58 +01:00
vfp_helper.c
vfp-uncond.decode
vfp.decode