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mirror_qemu/target/arm
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Peter Maydell e4e79c8e00 target/arm: Define and use new load_cpu_field_low32() 
In several places in the 32-bit Arm translate.c, we try to use
load_cpu_field() to load from a CPUARMState field into a TCGv_i32
where the field is actually 64-bit. This works on little-endian
hosts, but gives the wrong half of the register on big-endian.

Add a new load_cpu_field_low32() which loads the low 32 bits
of a 64-bit field into a TCGv_i32. The new macro includes a
compile-time check against accidentally using it on a field
of the wrong size. Use it to fix the two places in the code
where we were using load_cpu_field() on a 64-bit field.

This fixes a bug where on big-endian hosts the guest would
crash after executing an ERET instruction, and a more corner
case one where some UNDEFs for attempted accesses to MSR
banked registers from Secure EL1 might go to the wrong EL.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230424153909.1419369-2-peter.maydell@linaro.org
(cherry picked from commit 7f3a3d3dc4)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
 		2023-05-18 21:09:59 +03:00
..
hvf Fix 'writeable' typos 2022-06-08 19:38:47 +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 dump: Replace opaque DumpState pointer with a typed one 2022-10-06 19:30:43 +04:00
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 target/arm/arm-powerctl: Add new arm_set_cpu_on_and_reset() 2019-02-28 11:03:04 +00:00
arm_ldst.h accel/tcg: Add DisasContextBase argument to translator_ld* 2021-09-14 12:00:20 -07:00
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
cpu-param.h target/arm: Enable TARGET_TB_PCREL 2022-10-20 11:28:29 +01:00
cpu-qom.h target: Introduce and use OBJECT_DECLARE_CPU_TYPE() macro 2022-03-06 22:23:09 +01:00
cpu.c target/arm: Set TCGCPUOps.restore_state_to_opc for v7m 2022-11-29 18:15:26 -05:00
cpu.h target/arm: Handle m-profile in arm_is_secure 2023-04-12 16:57:32 +03:00
cpu64.c target/arm: Implement FEAT_HAFDBS, dirty bit portion 2022-10-27 11:34:31 +01:00
cpu_tcg.c target/arm: Set TCGCPUOps.restore_state_to_opc for v7m 2022-11-29 18:15:26 -05:00
crypto_helper.c crypto: move sm4_sbox from target/arm 2022-04-29 10:47:45 +10:00
debug_helper.c target/arm: Store TCR_EL* registers as uint64_t 2022-07-18 13:20:13 +01:00
gdbstub.c Fix 'writeable' typos 2022-06-08 19:38:47 +01:00
gdbstub64.c target/arm: Rename sve_zcr_len_for_el to sve_vqm1_for_el 2022-06-08 19:38:57 +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-sme.h target/arm: Implement SME integer outer product 2022-07-11 13:43:51 +01:00
helper-sve.h target/arm: Implement REVD 2022-07-11 13:43:51 +01:00
helper.c target/arm: allow writes to SCR_EL3.HXEn bit when FEAT_HCX is enabled 2023-03-29 10:20:04 +03:00
helper.h target/arm: Implement SCLAMP, UCLAMP 2022-07-11 13:43:51 +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: Set TCGCPUOps.restore_state_to_opc for v7m 2022-11-29 18:15:26 -05:00
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: Initialize debug capabilities only once 2023-05-18 21:09:59 +03:00
kvm64.c target/arm: Initialize debug capabilities only once 2023-05-18 21:09:59 +03:00
kvm_arm.h target/arm: Initialize debug capabilities only once 2023-05-18 21:09:59 +03:00
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: Use tlb_set_page_full 2022-10-10 14:52:25 +01:00
machine.c target/arm: Add the SME ZA storage to CPUARMState 2022-06-27 11:18:17 +01:00
meson.build target/arm: Trap non-streaming usage when Streaming SVE is active 2022-07-11 13:19:35 +01:00
monitor.c target/arm: Add cpu properties to control pauth 2021-01-19 14:38:51 +00:00
mte_helper.c accel/tcg: Simplify page_get/alloc_target_data 2022-10-26 11:11:28 +10:00
mve.decode target/arm: Implement MVE VRINT insns 2021-09-01 11:08:17 +01:00
mve_helper.c target/arm: Use expand_pred_b in mve_helper.c 2022-06-08 19:38:58 +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 accel/tcg: Remove will_exit argument from cpu_restore_state 2022-11-01 08:31:41 +11:00
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
ptw.c target/arm: Fix physical address resolution for Stage2 2023-03-29 10:20:04 +03:00
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
sme_helper.c target/arm: Implement SME integer outer product 2022-07-11 13:43:51 +01:00
sve.decode target/arm: Implement SCLAMP, UCLAMP 2022-07-11 13:43:51 +01:00
sve_helper.c target/arm: Fix sve_probe_page 2023-03-29 10:20:04 +03:00
sve_ldst_internal.h target/arm: Use probe_access_full for MTE 2022-10-20 11:27:49 +01:00
syndrome.h target/arm: Add syn_smetrap 2022-06-27 11:18:17 +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 accel/tcg: Remove will_exit argument from cpu_restore_state 2022-11-01 08:31:41 +11:00
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 target/arm: Define and use new load_cpu_field_low32() 2023-05-18 21:09:59 +03:00
translate-a64.c target/arm: Enable TARGET_TB_PCREL 2022-10-20 11:28:29 +01:00
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: Define and use new load_cpu_field_low32() 2023-05-18 21:09:59 +03:00
translate.h target/arm: Enable TARGET_TB_PCREL 2022-10-20 11:28:29 +01:00
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-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