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7ac610206a
qemu/target/arm
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Peter Maydell 7ac610206a target/arm: Implement FEAT_DoubleFault 
The FEAT_DoubleFault extension adds the following:

 * All external aborts on instruction fetches and translation table
   walks for instruction fetches must be synchronous.  For QEMU this
   is already true.

 * SCR_EL3 has a new bit NMEA which disables the masking of SError
   interrupts by PSTATE.A when the SError interrupt is taken to EL3.
   For QEMU we only need to make the bit writable, because we have no
   sources of SError interrupts.

 * SCR_EL3 has a new bit EASE which causes synchronous external
   aborts taken to EL3 to be taken at the same entry point as SError.
   (Note that this does not mean that they are SErrors for purposes
   of PSTATE.A masking or that the syndrome register reports them as
   SErrors: it just means that the vector offset is different.)

 * The existing SCTLR_EL3.IESB has an effective value of 1 when
   SCR_EL3.NMEA is 1.  For QEMU this is a no-op because we don't need
   different behaviour based on IESB (we don't need to do anything to
   ensure that error exceptions are synchronized).

So for QEMU the things we need to change are:
 * Make SCR_EL3.{NMEA,EASE} writable
 * When taking a synchronous external abort at EL3, adjust the
   vector entry point if SCR_EL3.EASE is set
 * Advertise the feature in the ID registers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220531151431.949322-1-peter.maydell@linaro.org
2022-06-08 19:38:46 +01:00
..
hvf target/arm/hvf: Include missing "cpregs.h" 2022-05-30 10:35:54 +01:00
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_ldst.h accel/tcg: Add DisasContextBase argument to translator_ld* 2021-09-14 12:00:20 -07:00
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
cpregs.h target/arm: Implement FEAT_IDST 2022-05-19 16:19:02 +01:00
cpu64.c target/arm: Implement FEAT_DoubleFault 2022-06-08 19:38:46 +01:00
cpu_tcg.c target/arm: Make number of counters in PMCR follow the CPU 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: Use FIELD definitions for CPACR, CPTR_ELx 2022-05-19 18:34:10 +01:00
cpu.h target/arm: Implement FEAT_DoubleFault 2022-06-08 19:38:46 +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
gdbstub64.c target/arm: Move gdbstub related code out of helper.c 2021-09-30 13:42:10 +01:00
gdbstub.c target/arm: Store cpregs key in the hash table directly 2022-05-05 09:35:51 +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_DoubleFault 2022-06-08 19:38:46 +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: Make number of counters in PMCR follow the CPU 2022-05-19 16:19:02 +01:00
iwmmxt_helper.c arm tcg cpus: Fix Lesser GPL version number 2020-11-15 16:42:14 +01:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
kvm64.c target/arm: Make number of counters in PMCR follow the CPU 2022-05-19 16:19:02 +01:00
kvm_arm.h hvf: arm: Implement -cpu host 2021-09-21 16:28:26 +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
m_helper.c target/arm: Change CPUArchState.thumb to bool 2022-04-22 14:44:54 +01:00
m-nocp.decode target/arm: Don't NOCP fault for FPCXT_NS accesses 2021-06-21 16:49:37 +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_helper.c target/arm: Implement MVE VRINT insns 2021-09-01 11:08:17 +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 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
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_helper.c target/arm: Move sve zip high_ofs into simd_data 2022-05-30 17:05:08 +01:00
sve.decode target/arm: Use TRANS_FEAT for FMMLA 2022-05-30 17:05:09 +01:00
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: Remove aa64_sve check from before disas_sve 2022-05-30 17:05:12 +01:00
translate-a64.h target/arm: Drop unsupported_encoding() macro 2022-05-19 16:19:02 +01:00
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: Add sve feature check for remaining trans_* functions 2022-05-30 17:05:11 +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: Introduce TRANS, TRANS_FEAT 2022-05-30 17:05:04 +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_helper.c target/arm: Check NaN mode before silencing NaN 2021-07-02 11:48:36 +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