qemu-e2k/target/arm
Peter Maydell 88ce6c6ee8 target/arm: Stop assuming DBGDIDR always exists
The AArch32 DBGDIDR defines properties like the number of
breakpoints, watchpoints and context-matching comparators.  On an
AArch64 CPU, the register may not even exist if AArch32 is not
supported at EL1.

Currently we hard-code use of DBGDIDR to identify the number of
breakpoints etc; this works for all our TCG CPUs, but will break if
we ever add an AArch64-only CPU.  We also have an assert() that the
AArch32 and AArch64 registers match, which currently works only by
luck for KVM because we don't populate either of these ID registers
from the KVM vCPU and so they are both zero.

Clean this up so we have functions for finding the number
of breakpoints, watchpoints and context comparators which look
in the appropriate ID register.

This allows us to drop the "check that AArch64 and AArch32 agree
on the number of breakpoints etc" asserts:
 * we no longer look at the AArch32 versions unless that's the
   right place to be looking
 * it's valid to have a CPU (eg AArch64-only) where they don't match
 * we shouldn't have been asserting the validity of ID registers
   in a codepath used with KVM anyway

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200214175116.9164-11-peter.maydell@linaro.org
2020-02-21 16:07:01 +00:00
..
Makefile.objs target/arm: Add skeleton for T16 decodetree 2019-09-05 13:23:03 +01:00
a32-uncond.decode target/arm: Convert Unallocated memory hint 2019-09-05 13:23:03 +01:00
a32.decode target/arm: Convert SVC 2019-09-05 13:23:03 +01:00
arch_dump.c target/arm/arch_dump: Add SVE notes 2020-01-23 15:34:04 +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 target/arm/arm-powerctl: Add new arm_set_cpu_on_and_reset() 2019-02-28 11:03:04 +00:00
arm-semi.c target/arm/arm-semi: Don't let the guest close stdin/stdout/stderr 2020-01-30 16:02:01 +00:00
arm_ldst.h target/arm: fetch code with translator_ld 2019-10-28 15:12:38 +00:00
cpu-param.h target/arm: Add mmu_idx for EL1 and EL2 w/ PAN enabled 2020-02-13 14:14:53 +00:00
cpu-qom.h target/arm: Add the hypervisor virtual counter 2020-02-07 14:04:25 +00:00
cpu.c target/arm: Add _aa64_ and _any_ versions of pmu_8_1 isar checks 2020-02-21 16:07:01 +00:00
cpu.h target/arm: Stop assuming DBGDIDR always exists 2020-02-21 16:07:01 +00:00
cpu64.c target/arm: Add _aa64_ and _any_ versions of pmu_8_1 isar checks 2020-02-21 16:07:01 +00:00
crypto_helper.c target: Do not include "exec/exec-all.h" if it is not necessary 2018-06-01 14:15:10 +02:00
debug_helper.c target/arm: Stop assuming DBGDIDR always exists 2020-02-21 16:07:01 +00:00
gdbstub.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
gdbstub64.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
helper-a64.c target/arm: Introduce aarch64_pstate_valid_mask 2020-02-13 14:14:54 +00:00
helper-a64.h target/arm: Split helper_msr_i_pstate into 3 2019-03-05 15:55:08 +00:00
helper-sve.h target/arm: Rewrite vector gather first-fault loads 2018-10-08 14:55:03 +01:00
helper.c target/arm: Stop assuming DBGDIDR always exists 2020-02-21 16:07:01 +00:00
helper.h target/arm: ensure we use current exception state after SCR update 2019-12-16 10:52:58 +00:00
idau.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
internals.h target/arm: Stop assuming DBGDIDR always exists 2020-02-21 16:07:01 +00:00
iwmmxt_helper.c target/arm: Untabify iwmmxt_helper.c 2018-08-24 13:17:48 +01:00
kvm-consts.h
kvm-stub.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
kvm.c target/arm/cpu: Add the kvm-no-adjvtime CPU property 2020-01-30 16:02:06 +00:00
kvm32.c target/arm/kvm: Implement virtual time adjustment 2020-01-30 16:02:06 +00:00
kvm64.c target/arm: Add ID_AA64MMFR2_EL1 2020-02-13 14:14:54 +00:00
kvm_arm.h target/arm/cpu: Add the kvm-no-adjvtime CPU property 2020-01-30 16:02:06 +00:00
m_helper.c target/arm: only update pc after semihosting completes 2020-01-09 11:41:29 +00:00
machine.c target/arm/kvm: Implement virtual time adjustment 2020-01-30 16:02:06 +00:00
monitor.c target/arm/monitor: query-cpu-model-expansion crashed qemu when using machine type none 2020-02-07 14:04:21 +00:00
neon_helper.c target/arm: Use tcg_gen_abs_i64 and tcg_gen_gvec_abs 2019-05-13 22:52:08 +00:00
op_addsub.h
op_helper.c target/arm: Remove CPSR_RESERVED 2020-02-13 14:14:54 +00:00
pauth_helper.c target/arm: Use bit 55 explicitly for pauth 2020-02-21 16:07:00 +00:00
psci.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
sve.decode target/arm: SVE brk[ab] merging does not have s bit 2019-01-07 15:23:45 +00:00
sve_helper.c tcg: Search includes from the project root source directory 2020-01-15 15:13:10 -10:00
t16.decode target/arm: Convert T16, long branches 2019-09-05 13:23:04 +01:00
t32.decode target/arm: Convert TT 2019-09-05 13:23:03 +01:00
tlb_helper.c target/arm: Return correct IL bit in merge_syn_data_abort 2020-01-17 14:27:16 +00:00
trace-events trace-events: Shorten file names in comments 2019-03-22 16:18:07 +00:00
translate-a64.c target/arm: Flush high bits of sve register after AdvSIMD INS 2020-02-21 16:07:00 +00:00
translate-a64.h Allow page table bit to swap endianness. 2019-09-04 16:29:18 +01:00
translate-sve.c tcg: Search includes from the project root source directory 2020-01-15 15:13:10 -10:00
translate-vfp.inc.c target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2019-12-16 10:46:34 +00:00
translate.c target/arm: Add _aa32_ to isar_feature functions testing 32-bit ID registers 2020-02-21 16:07:00 +00:00
translate.h target/arm: Update get_a64_user_mem_index for VHE 2020-02-07 14:04:26 +00:00
vec_helper.c target/arm: Add helpers for FMLAL 2019-02-28 11:03:05 +00:00
vfp-uncond.decode target/arm: Convert VCVTA/VCVTN/VCVTP/VCVTM to decodetree 2019-06-13 15:14:04 +01:00
vfp.decode target/arm: Use vfp_expand_imm() for AArch32 VFP VMOV_imm 2019-06-17 15:14:19 +01:00
vfp_helper.c target/arm: Add isar_feature_any_fp16 and document naming/usage conventions 2020-02-21 16:07:00 +00:00