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| author | Helge Deller <deller@kernel.org> | 2024-03-26 07:39:40 -1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2024-03-29 08:14:56 -1000 |
| commit | 3bdf20819e6824b75a498332961abe7fd25ed671 (patch) | |
| tree | d8709e99a00464b1164f020edc65ba6a0e968e58 | |
| parent | 381931275a9e09fb832bd6be0b41ebd6ce415099 (diff) | |
| download | qemu-3bdf20819e6824b75a498332961abe7fd25ed671.zip qemu-3bdf20819e6824b75a498332961abe7fd25ed671.tar.gz qemu-3bdf20819e6824b75a498332961abe7fd25ed671.tar.bz2 | |
target/hppa: Add diag instructions to set/restore shadow registers
The 32-bit PA-7300LC (PCX-L2) CPU and the 64-bit PA8700 (PCX-W2) CPU
use different diag instructions to save or restore the CPU registers
to/from the shadow registers.
Implement those per-CPU architecture diag instructions to fix those
parts of the HP ODE testcases (L2DIAG and WDIAG, section 1) which test
the shadow registers.
Signed-off-by: Helge Deller <deller@gmx.de>
[rth: Use decodetree to distinguish cases]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | target/hppa/insns.decode | 10 | ||||
| -rw-r--r-- | target/hppa/translate.c | 34 |
2 files changed, 44 insertions, 0 deletions
diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode index 9f6ffd8..71074a6 100644 --- a/target/hppa/insns.decode +++ b/target/hppa/insns.decode @@ -65,6 +65,8 @@ # Argument set definitions #### +&empty + # All insns that need to form a virtual address should use this set. &ldst t b x disp sp m scale size @@ -638,6 +640,14 @@ xmpyu 001110 ..... ..... 010 .0111 .00 t:5 r1=%ra64 r2=%rb64 [ diag_btlb 000101 00 0000 0000 0000 0001 0000 0000 diag_cout 000101 00 0000 0000 0000 0001 0000 0001 + + # For 32-bit PA-7300LC (PCX-L2) + diag_getshadowregs_pa1 000101 00 0000 0000 0001 1010 0000 0000 + diag_putshadowregs_pa1 000101 00 0000 0000 0001 1010 0100 0000 + + # For 64-bit PA8700 (PCX-W2) + diag_getshadowregs_pa2 000101 00 0111 1000 0001 1000 0100 0000 + diag_putshadowregs_pa2 000101 00 0111 0000 0001 1000 0100 0000 ] diag_unimp 000101 i:26 } diff --git a/target/hppa/translate.c b/target/hppa/translate.c index 42dd3f2..143818c 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -2399,6 +2399,20 @@ static bool do_getshadowregs(DisasContext *ctx) return nullify_end(ctx); } +static bool do_putshadowregs(DisasContext *ctx) +{ + CHECK_MOST_PRIVILEGED(EXCP_PRIV_OPR); + nullify_over(ctx); + tcg_gen_st_i64(cpu_gr[1], tcg_env, offsetof(CPUHPPAState, shadow[0])); + tcg_gen_st_i64(cpu_gr[8], tcg_env, offsetof(CPUHPPAState, shadow[1])); + tcg_gen_st_i64(cpu_gr[9], tcg_env, offsetof(CPUHPPAState, shadow[2])); + tcg_gen_st_i64(cpu_gr[16], tcg_env, offsetof(CPUHPPAState, shadow[3])); + tcg_gen_st_i64(cpu_gr[17], tcg_env, offsetof(CPUHPPAState, shadow[4])); + tcg_gen_st_i64(cpu_gr[24], tcg_env, offsetof(CPUHPPAState, shadow[5])); + tcg_gen_st_i64(cpu_gr[25], tcg_env, offsetof(CPUHPPAState, shadow[6])); + return nullify_end(ctx); +} + static bool trans_getshadowregs(DisasContext *ctx, arg_getshadowregs *a) { return do_getshadowregs(ctx); @@ -4594,6 +4608,26 @@ static bool trans_diag_cout(DisasContext *ctx, arg_diag_cout *a) #endif } +static bool trans_diag_getshadowregs_pa1(DisasContext *ctx, arg_empty *a) +{ + return !ctx->is_pa20 && do_getshadowregs(ctx); +} + +static bool trans_diag_getshadowregs_pa2(DisasContext *ctx, arg_empty *a) +{ + return ctx->is_pa20 && do_getshadowregs(ctx); +} + +static bool trans_diag_putshadowregs_pa1(DisasContext *ctx, arg_empty *a) +{ + return !ctx->is_pa20 && do_putshadowregs(ctx); +} + +static bool trans_diag_putshadowregs_pa2(DisasContext *ctx, arg_empty *a) +{ + return ctx->is_pa20 && do_putshadowregs(ctx); +} + static bool trans_diag_unimp(DisasContext *ctx, arg_diag_unimp *a) { CHECK_MOST_PRIVILEGED(EXCP_PRIV_OPR); |