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a99ba8ab16
qemu/target/arm
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Peter Maydell a99ba8ab16 target/arm: New function armv7m_nvic_set_pending_lazyfp() 
In the v7M architecture, if an exception is generated in the process
of doing the lazy stacking of FP registers, the handling of
possible escalation to HardFault is treated differently to the normal
approach: it works based on the saved information about exception
readiness that was stored in the FPCCR when the stack frame was
created. Provide a new function armv7m_nvic_set_pending_lazyfp()
which pends exceptions during lazy stacking, and implements
this logic.

This corresponds to the pseudocode TakePreserveFPException().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190416125744.27770-22-peter.maydell@linaro.org
2019-04-29 17:36:02 +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 qom/cpu: Simplify how CPUClass:cpu_dump_state() prints 2019-04-18 22:18:59 +02:00
cpu64.c target/arm: Implement ARMv8.5-FRINT 2019-03-05 15:55:08 +00:00
cpu-qom.h arm: replace instance_post_init() 2019-01-07 16:18:42 +04:00
cpu.c target/arm: Overlap VECSTRIDE and XSCALE_CPAR TB flags 2019-04-29 17:36:01 +01:00
cpu.h target/arm: New function armv7m_nvic_set_pending_lazyfp() 2019-04-29 17:36:02 +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
gdbstub64.c
gdbstub.c arm: fix malloc type mismatch 2018-05-31 14:50:52 +01:00
helper-a64.c target/arm: Split helper_msr_i_pstate into 3 2019-03-05 15:55:08 +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: New helper function arm_v7m_mmu_idx_all() 2019-04-29 17:36:02 +01:00
helper.h target/arm: Implement ARMv8.5-FRINT 2019-03-05 15:55:08 +00:00
idau.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
internals.h target/arm: Split helper_msr_i_pstate into 3 2019-03-05 15:55:08 +00:00
iwmmxt_helper.c target/arm: Untabify iwmmxt_helper.c 2018-08-24 13:17:48 +01:00
kvm32.c Revert "arm: Allow system registers for KVM guests to be changed by QEMU code" 2019-02-28 11:03:05 +00:00
kvm64.c Revert "arm: Allow system registers for KVM guests to be changed by QEMU code" 2019-02-28 11:03:05 +00:00
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
kvm.c kvm: add kvm_arm_get_max_vm_ipa_size 2019-03-05 15:55:09 +00:00
machine.c target/arm: Implement dummy versions of M-profile FP-related registers 2019-04-29 17:35:58 +01:00
Makefile.objs target/arm: Split out vfp_helper.c 2019-02-21 18:17:45 +00:00
monitor.c qapi: make query-gic-capabilities depend on TARGET_ARM 2019-02-18 14:44:05 +01:00
neon_helper.c target/arm: Split out FPSCR.QC to a vector field 2019-02-15 09:56:41 +00:00
op_addsub.h
op_helper.c target/arm: Add set/clear_pstate_bits, share gen_ss_advance 2019-03-05 15:55:08 +00:00
pauth_helper.c target/arm: Implement pauth_computepac 2019-01-21 10:38:55 +00:00
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 target/arm/sve_helper: Fix compilation with clang 3.4 2018-11-28 15:31:15 +00:00
sve.decode target/arm: SVE brk[ab] merging does not have s bit 2019-01-07 15:23:45 +00:00
trace-events trace-events: Shorten file names in comments 2019-03-22 16:18:07 +00:00
translate-a64.c qom/cpu: Simplify how CPUClass:cpu_dump_state() prints 2019-04-18 22:18:59 +02:00
translate-a64.h target/arm: Extend vec_reg_offset to larger sizes 2018-06-15 15:23:34 +01:00
translate-sve.c target/arm: Check access permission to ADDVL/ADDPL/RDVL 2019-03-15 11:12:29 +00:00
translate.c target/arm: Activate M-profile floating point context when FPCCR.ASPEN is set 2019-04-29 17:36:01 +01:00
translate.h target/arm: Activate M-profile floating point context when FPCCR.ASPEN is set 2019-04-29 17:36:01 +01:00
vec_helper.c target/arm: Add helpers for FMLAL 2019-02-28 11:03:05 +00:00
vfp_helper.c target/arm: Make sure M-profile FPSCR RES0 bits are not settable 2019-04-29 17:35:58 +01:00