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3fe72e213e
qemu/target/arm
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Peter Maydell 3fe72e213e target/arm: Advertise FEAT_ETS for '-cpu max' 
The architectural feature FEAT_ETS (Enhanced Translation
Synchronization) is a set of tightened guarantees about memory
ordering involving translation table walks:

 * if memory access RW1 is ordered-before memory access RW2 then it
   is also ordered-before any translation table walk generated by RW2
   that generates a translation fault, address size fault or access
   fault

 * TLB maintenance on non-exec-permission translations is guaranteed
   complete after a DSB (ie it does not need the context
   synchronization event that you have to have if you don’t have
   FEAT_ETS)

For QEMU’s implementation we don’t reorder translation table walk
accesses, and we guarantee to finish the TLB maintenance as soon as
the TLB op is done (the tlb_flush functions will complete at the end
of the TLB, and TLB ops always end the TB because they’re sysreg
writes).

So we’re already compliant and all we need to do is say so in the ID
registers for the 'max' CPU.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220819110052.2942289-6-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-14 11:19:40 +01:00
..
hvf Fix 'writeable' typos 2022-06-08 19:38:47 +01:00
a32-uncond.decode
a32.decode target/arm: Implement ESB instruction 2022-05-09 11:47:54 +01:00
arch_dump.c target/arm: Rename sve_zcr_len_for_el to sve_vqm1_for_el 2022-06-08 19:38:57 +01:00
arm_ldst.h accel/tcg: Add DisasContextBase argument to translator_ld* 2021-09-14 12:00:20 -07:00
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: Advertise FEAT_ETS for '-cpu max' 2022-09-14 11:19:40 +01:00
cpu_tcg.c target/arm: Advertise FEAT_ETS for '-cpu max' 2022-09-14 11:19:40 +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: Don't report Statistical Profiling Extension in ID registers 2022-08-12 11:17:35 +01:00
cpu.h target/arm: Implement ID_DFR1 2022-09-14 11:19:40 +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: Store TCR_EL* registers as uint64_t 2022-07-18 13:20:13 +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
gdbstub.c Fix 'writeable' typos 2022-06-08 19:38:47 +01:00
helper-a64.c target/arm: Change CPUArchState.aarch64 to bool 2022-04-22 14:44:54 +01:00
helper-a64.h
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: Implement ID_DFR1 2022-09-14 11:19:40 +01:00
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
internals.h target/arm: Honour VTCR_EL2 bits in Secure EL2 2022-07-18 13:20:14 +01:00
iwmmxt_helper.c
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
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 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 kvm: don't use perror() without useful errno 2022-07-29 00:15:02 +02:00
m_helper.c semihosting: Return void from do_common_semihosting 2022-06-28 04:35:07 +05:30
m-nocp.decode
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
mte_helper.c exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
mve_helper.c target/arm: Use expand_pred_b in mve_helper.c 2022-06-08 19:38:58 +01:00
mve.decode target/arm: Implement MVE VRINT insns 2021-09-01 11:08:17 +01:00
neon_helper.c Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
neon-dp.decode
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
op_addsub.h
op_helper.c target/arm: Introduce helper_exception_with_syndrome 2022-06-10 14:32:34 +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
ptw.c target/arm: Store TCR_EL* registers as uint64_t 2022-07-18 13:20:13 +01:00
sme_helper.c target/arm: Implement SME integer outer product 2022-07-11 13:43:51 +01:00
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: Implement REVD 2022-07-11 13:43:51 +01:00
sve_ldst_internal.h target/arm: Export sve contiguous ldst support functions 2022-06-08 19:38:58 +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 target/arm: Implement ESB instruction 2022-05-09 11:47:54 +01:00
tlb_helper.c target/arm: Fold regime_tcr() and regime_tcr_value() together 2022-07-18 13:20:13 +01:00
trace-events
trace.h
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: Don't set syndrome ISS for loads and stores with writeback 2022-07-18 13:20:14 +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: Introduce gen_exception_insn 2022-06-10 14:32:32 +01:00
translate-mve.c target/arm: Introduce gen_exception_insn 2022-06-10 14:32:32 +01:00
translate-neon.c target/arm: Avoid bare abort() or assert(0) 2022-05-05 09:35:51 +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: Trap non-streaming usage when Streaming SVE is active 2022-07-11 13:19:35 +01:00
translate.c accel/tcg: Add pc and host_pc params to gen_intermediate_code 2022-09-06 08:04:26 +01:00
translate.h target/arm: Implement SME MOVA 2022-07-11 13:19:35 +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_helper.c target/arm: Check NaN mode before silencing NaN 2021-07-02 11:48:36 +01:00
vfp-uncond.decode
vfp.decode