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cb7cef8b32
qemu/target/arm
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Peter Maydell cb7cef8b32 target/arm: Set VFP-related MVFR0 fields for arm926 and arm1026 
The ARMv5 architecture didn't specify detailed per-feature ID
registers. Now that we're using the MVFR0 register fields to
gate the existence of VFP instructions, we need to set up
the correct values in the cpu->isar structure so that we still
provide an FPU to the guest.

This fixes a regression in the arm926 and arm1026 CPUs, which
are the only ones that both have VFP and are ARMv5 or earlier.
This regression was introduced by the VFP refactoring, and more
specifically by commits 1120827fa1 and 266bd25c48,
which accidentally disabled VFP short-vector support and
double-precision support on these CPUs.

Fixes: 1120827fa1
Fixes: 266bd25c48
Fixes: https://bugs.launchpad.net/qemu/+bug/1836192
Reported-by: Christophe Lyon <christophe.lyon@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Christophe Lyon <christophe.lyon@linaro.org>
Message-id: 20190711131241.22231-1-peter.maydell@linaro.org
2019-07-15 14:17:04 +01:00
..
arch_dump.c target/arm: Add aa{32, 64}_vfp_{dreg, qreg} helpers 2018-01-25 11:45:29 +00:00
arm_ldst.h target: Do not include "exec/exec-all.h" if it is not necessary 2018-06-01 14:15:10 +02:00
arm-powerctl.c target/arm/arm-powerctl: Add new arm_set_cpu_on_and_reset() 2019-02-28 11:03:04 +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 semihosting: split console_out into string and char versions 2019-06-12 17:53:22 +01:00
cpu64.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
cpu-param.h tcg: Split out target/arch/cpu-param.h 2019-06-10 07:03:34 -07:00
cpu-qom.h arm: replace instance_post_init() 2019-01-07 16:18:42 +04:00
cpu.c target/arm: Set VFP-related MVFR0 fields for arm926 and arm1026 2019-07-15 14:17:04 +01:00
cpu.h target/arm: Restrict semi-hosting to TCG 2019-07-04 17:14:43 +01:00
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: Move debug routines to debug_helper.c 2019-07-04 17:14:43 +01:00
gdbstub64.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
gdbstub.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
helper-a64.c tcg: Introduce set/clear_helper_retaddr 2019-07-14 12:19:00 +02:00
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: Fix sve_zcr_len_for_el 2019-07-08 14:11:30 +01:00
helper.h target/arm: Use tcg_gen_abs_i64 and tcg_gen_gvec_abs 2019-05-13 22:52:08 +00:00
idau.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
internals.h target/arm: Declare some M-profile functions publicly 2019-07-01 17:29:01 +01:00
iwmmxt_helper.c target/arm: Untabify iwmmxt_helper.c 2018-08-24 13:17:48 +01:00
kvm32.c KVM: Introduce kvm_arch_destroy_vcpu() 2019-06-21 02:29:39 +02:00
kvm64.c KVM: Introduce kvm_arch_destroy_vcpu() 2019-06-21 02:29:39 +02:00
kvm_arm.h kvm: add kvm_arm_get_max_vm_ipa_size 2019-03-05 15:55:09 +00:00
kvm-consts.h arm: add trailing ; after MISMATCH_CHECK 2017-02-01 03:37:18 +02:00
kvm-stub.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
kvm.c arm: Remove unnecessary includes of hw/arm/arm.h 2019-05-23 14:47:43 +01:00
m_helper.c target/arm: Use _ra versions of cpu_stl_data() in v7M helpers 2019-07-04 17:25:30 +01:00
machine.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
Makefile.objs target/arm/helper: Move M profile routines to m_helper.c 2019-07-04 17:14:43 +01:00
monitor.c qapi: Rename target.json to misc-target.json 2019-07-02 13:37:00 +02:00
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: Move debug routines to debug_helper.c 2019-07-04 17:14:43 +01:00
pauth_helper.c target/arm: Fix output of PAuth Auth 2019-06-13 15:14:03 +01:00
psci.c target: Do not include "exec/exec-all.h" if it is not necessary 2018-06-01 14:15:10 +02:00
sve_helper.c tcg: Introduce set/clear_helper_retaddr 2019-07-14 12:19:00 +02:00
sve.decode target/arm: SVE brk[ab] merging does not have s bit 2019-01-07 15:23:45 +00:00
tlb_helper.c target/arm: Move TLB related routines to tlb_helper.c 2019-07-01 17:29:01 +01:00
trace-events trace-events: Shorten file names in comments 2019-03-22 16:18:07 +00:00
translate-a64.c target/arm: Move CPU state dumping routines to cpu.c 2019-07-01 17:29:00 +01:00
translate-a64.h target/arm: Move vfp_expand_imm() to translate.[ch] 2019-06-17 15:14:19 +01:00
translate-sve.c tcg: Specify optional vector requirements with a list 2019-05-13 14:44:03 -07:00
translate-vfp.inc.c target/arm: Correct VMOV_imm_dp handling of short vectors 2019-07-04 17:25:30 +01:00
translate.c target/arm: Execute Thumb instructions when their condbits are 0xf 2019-07-04 17:25:30 +01:00
translate.h target/arm: Move CPU state dumping routines to cpu.c 2019-07-01 17:29:00 +01:00
vec_helper.c target/arm: Add helpers for FMLAL 2019-02-28 11:03:05 +00:00
vfp_helper.c target/arm/vfp_helper: Call set_fpscr_to_host before updating to FPSCR 2019-07-08 14:11:31 +01:00
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