diff options
Diffstat (limited to 'target/arm/translate-vfp.c')
| -rw-r--r-- | target/arm/translate-vfp.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/target/arm/translate-vfp.c b/target/arm/translate-vfp.c index 40a513b822..82fdbcae53 100644 --- a/target/arm/translate-vfp.c +++ b/target/arm/translate-vfp.c @@ -219,8 +219,18 @@ static void gen_update_fp_context(DisasContext *s) static bool vfp_access_check_a(DisasContext *s, bool ignore_vfp_enabled) { if (s->fp_excp_el) { - gen_exception_insn(s, s->pc_curr, EXCP_UDEF, - syn_fp_access_trap(1, 0xe, false), s->fp_excp_el); + /* + * The full syndrome is only used for HSR when HCPTR traps: + * For v8, when TA==0, coproc is RES0. + * For v7, any use of a Floating-point instruction or access + * to a Floating-point Extension register that is trapped to + * Hyp mode because of a trap configured in the HCPTR sets + * this field to 0xA. + */ + int coproc = arm_dc_feature(s, ARM_FEATURE_V8) ? 0 : 0xa; + uint32_t syn = syn_fp_access_trap(1, 0xe, false, coproc); + + gen_exception_insn_el(s, s->pc_curr, EXCP_UDEF, syn, s->fp_excp_el); return false; } @@ -250,8 +260,8 @@ bool vfp_access_check_m(DisasContext *s, bool skip_context_update) * the encoding space handled by the patterns in m-nocp.decode, * and for them we may need to raise NOCP here. */ - gen_exception_insn(s, s->pc_curr, EXCP_NOCP, - syn_uncategorized(), s->fp_excp_el); + gen_exception_insn_el(s, s->pc_curr, EXCP_NOCP, + syn_uncategorized(), s->fp_excp_el); return false; } |