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qemu-e2k/target/arm
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Peter Maydell 75662f36e3 target/arm: Implement FEAT_IDST 
The Armv8.4 feature FEAT_IDST specifies that exceptions generated by
read accesses to the feature ID space should report a syndrome code
of 0x18 (EC_SYSTEMREGISTERTRAP) rather than 0x00 (EC_UNCATEGORIZED).
The feature ID space is defined to be:
 op0 == 3, op1 == {0,1,3}, CRn == 0, CRm == {0-7}, op2 == {0-7}

In our implementation we might return the EC_UNCATEGORIZED syndrome
value for a system register access in four cases:
 * no reginfo struct in the hashtable
 * cp_access_ok() fails (ie ri->access doesn't permit the access)
 * ri->accessfn returns CP_ACCESS_TRAP_UNCATEGORIZED at runtime
 * ri->type includes ARM_CP_RAISES_EXC, and the readfn raises
   an UNDEF exception at runtime

We have very few regdefs that set ARM_CP_RAISES_EXC, and none of
them are in the feature ID space. (In the unlikely event that any
are added in future they would need to take care of setting the
correct syndrome themselves.) This patch deals with the other
three cases, and enables FEAT_IDST for AArch64 -cpu max.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220509155457.3560724-1-peter.maydell@linaro.org
 		2022-05-19 16:19:02 +01:00
..
hvf target/arm: Avoid bare abort() or assert(0) 2022-05-05 09:35:51 +01:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
a32-uncond.decode arm tcg cpus: Fix Lesser GPL version number 2020-11-15 16:42:14 +01:00
a32.decode target/arm: Implement ESB instruction 2022-05-09 11:47:54 +01:00
arch_dump.c target/arm: add spaces around operator 2020-11-10 11:03:47 +00:00
arm-powerctl.c arm/arm-powerctl: rebuild hflags after setting CP15 bits in arm_set_cpu_on() 2019-12-20 14:03:00 +00:00
arm-powerctl.h
…
arm_ldst.h accel/tcg: Add DisasContextBase argument to translator_ld* 2021-09-14 12:00:20 -07:00
cpregs.h target/arm: Implement FEAT_IDST 2022-05-19 16:19:02 +01:00
cpu-param.h Normalize header guard symbol definition 2022-05-11 16:50:26 +02:00
cpu-qom.h target: Introduce and use OBJECT_DECLARE_CPU_TYPE() macro 2022-03-06 22:23:09 +01:00
cpu.c target-arm queue: 2022-05-09 09:33:53 -07:00
cpu.h target/arm: Implement FEAT_IDST 2022-05-19 16:19:02 +01:00
cpu64.c target/arm: Implement FEAT_IDST 2022-05-19 16:19:02 +01:00
cpu_tcg.c target/arm: Enable FEAT_CSV3 for -cpu max 2022-05-09 11:47:54 +01:00
crypto_helper.c crypto: move sm4_sbox from target/arm 2022-04-29 10:47:45 +10:00
debug_helper.c target/arm: Use field names for accessing DBGWCRn 2022-04-28 13:40:16 +01:00
gdbstub.c target/arm: Store cpregs key in the hash table directly 2022-05-05 09:35:51 +01:00
gdbstub64.c target/arm: Move gdbstub related code out of helper.c 2021-09-30 13:42:10 +01:00
helper-a64.c target/arm: Change CPUArchState.aarch64 to bool 2022-04-22 14:44:54 +01:00
helper-a64.h target/arm: Merge mte_check1, mte_checkN 2021-04-30 11:16:49 +01:00
helper-mve.h target/arm: Implement MVE VRINT insns 2021-09-01 11:08:17 +01:00
helper-sve.h target/arm: Implement vector float32 to bfloat16 conversion 2021-06-03 16:43:26 +01:00
helper.c target/arm: Implement FEAT_S2FWB 2022-05-19 16:19:02 +01:00
helper.h target/arm: Implement ESB instruction 2022-05-09 11:47:54 +01:00
hvf_arm.h target: Use forward declared type instead of structure type 2022-03-06 22:22:40 +01:00
idau.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
internals.h target/arm: Postpone interpretation of stage 2 descriptor attribute bits 2022-05-19 16:19:01 +01:00
iwmmxt_helper.c arm tcg cpus: Fix Lesser GPL version number 2020-11-15 16:42:14 +01:00
kvm-consts.h target/arm: Report KVM's actual PSCI version to guest in dtb 2022-03-02 19:27:37 +00:00
kvm-stub.c target/arm: Avoid bare abort() or assert(0) 2022-05-05 09:35:51 +01:00
kvm.c target/arm: Avoid bare abort() or assert(0) 2022-05-05 09:35:51 +01:00
kvm64.c target/arm: Use field names for accessing DBGWCRn 2022-04-28 13:40:16 +01:00
kvm_arm.h hvf: arm: Implement -cpu host 2021-09-21 16:28:26 +01:00
m-nocp.decode target/arm: Don't NOCP fault for FPCXT_NS accesses 2021-06-21 16:49:37 +01:00
m_helper.c target/arm: Change CPUArchState.thumb to bool 2022-04-22 14:44:54 +01:00
machine.c target/arm: Avoid bare abort() or assert(0) 2022-05-05 09:35:51 +01:00
meson.build arm: Add Hypervisor.framework build target 2021-09-21 16:28:26 +01:00
monitor.c target/arm: Add cpu properties to control pauth 2021-01-19 14:38:51 +00:00
mte_helper.c exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
mve.decode target/arm: Implement MVE VRINT insns 2021-09-01 11:08:17 +01:00
mve_helper.c target/arm: Implement MVE VRINT insns 2021-09-01 11:08:17 +01:00
neon-dp.decode target/arm: Implement vector float32 to bfloat16 conversion 2021-06-03 16:43:26 +01:00
neon-ls.decode target/arm: Remove duplicate 'plus1' function from Neon and SVE decode 2021-07-18 10:59:47 +01:00
neon-shared.decode target/arm: Remove duplicate 'plus1' function from Neon and SVE decode 2021-07-18 10:59:47 +01:00
neon_helper.c Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
op_addsub.h
…
op_helper.c target/arm: Implement FEAT_IDST 2022-05-19 16:19:02 +01:00
pauth_helper.c compiler.h: replace QEMU_NORETURN with G_NORETURN 2022-04-21 17:03:51 +04:00
psci.c target/arm: Support PSCI 1.1 and SMCCC 1.0 2022-03-02 19:27:36 +00:00
sve.decode target/arm: Fix sve2 ldnt1 and stnt1 2022-03-18 10:55:15 +00:00
sve_helper.c Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
syndrome.h target/arm: Implement virtual SError exceptions 2022-05-09 11:47:54 +01:00
t16.decode arm tcg cpus: Fix Lesser GPL version number 2020-11-15 16:42:14 +01:00
t32.decode target/arm: Implement ESB instruction 2022-05-09 11:47:54 +01:00
tlb_helper.c compiler.h: replace QEMU_NORETURN with G_NORETURN 2022-04-21 17:03:51 +04:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
translate-a32.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
translate-a64.c target/arm: Implement FEAT_IDST 2022-05-19 16:19:02 +01:00
translate-a64.h Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
translate-m-nocp.c target/arm: Use tcg_constant in translate-m-nocp.c 2022-04-22 14:44:54 +01:00
translate-mve.c target/arm: Optimize MVE 1op-immediate insns 2021-09-21 16:28:27 +01:00
translate-neon.c target/arm: Avoid bare abort() or assert(0) 2022-05-05 09:35:51 +01:00
translate-sve.c target/arm: Use tcg_constant for vector descriptor 2022-04-28 13:38:16 +01:00
translate-vfp.c target/arm: Use tcg_constant in translate-vfp.c 2022-04-22 14:44:55 +01:00
translate.c target/arm: Implement ESB instruction 2022-05-09 11:47:54 +01:00
translate.h target/arm: Use tcg_constant_i32 in translate.h 2022-04-22 14:44:55 +01:00
vec_helper.c target/arm: Implement MVE VMULL (polynomial) 2021-08-25 10:48:49 +01:00
vec_internal.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
vfp-uncond.decode arm tcg cpus: Fix Lesser GPL version number 2020-11-15 16:42:14 +01:00
vfp.decode target/arm: Don't NOCP fault for FPCXT_NS accesses 2021-06-21 16:49:37 +01:00
vfp_helper.c target/arm: Check NaN mode before silencing NaN 2021-07-02 11:48:36 +01:00