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[PATCH v6 09/12] target/riscv/tcg: handle profile MISA bits
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From: |
Daniel Henrique Barboza |
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Subject: |
[PATCH v6 09/12] target/riscv/tcg: handle profile MISA bits |
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Date: |
Sat, 28 Oct 2023 05:54:24 -0300 |
The profile support is handling multi-letter extensions only. Let's add
support for MISA bits as well.
We'll go through every known MISA bit. If the profile doesn't declare
the bit as mandatory, ignore it. Otherwise, set the bit in env->misa_ext
and env->misa_ext_mask.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
---
target/riscv/tcg/tcg-cpu.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 910360ce37..6ba27b824b 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -828,6 +828,19 @@ static void cpu_set_profile(Object *obj, Visitor *v, const
char *name,
return;
}
+ for (i = 0; misa_bits[i] != 0; i++) {
+ uint32_t bit = misa_bits[i];
+
+ if (!(profile->misa_ext & bit)) {
+ continue;
+ }
+
+ g_hash_table_insert(misa_ext_user_opts,
+ GUINT_TO_POINTER(bit),
+ (gpointer)value);
+ riscv_cpu_write_misa_bit(cpu, bit, profile->enabled);
+ }
+
for (i = 0; profile->ext_offsets[i] != RISCV_PROFILE_EXT_LIST_END; i++) {
ext_offset = profile->ext_offsets[i];
--
2.41.0
- [PATCH v6 03/12] riscv-qmp-cmds.c: expose named features in cpu_model_expansion, (continued)
- [PATCH v6 03/12] riscv-qmp-cmds.c: expose named features in cpu_model_expansion, Daniel Henrique Barboza, 2023/10/28
- [PATCH v6 04/12] target/riscv: add rva22u64 profile definition, Daniel Henrique Barboza, 2023/10/28
- [PATCH v6 05/12] target/riscv/kvm: add 'rva22u64' flag as unavailable, Daniel Henrique Barboza, 2023/10/28
- [PATCH v6 06/12] target/riscv/tcg: add user flag for profile support, Daniel Henrique Barboza, 2023/10/28
- [PATCH v6 07/12] target/riscv/tcg: add MISA user options hash, Daniel Henrique Barboza, 2023/10/28
- [PATCH v6 09/12] target/riscv/tcg: handle profile MISA bits,
Daniel Henrique Barboza <=
- [PATCH v6 08/12] target/riscv/tcg: add riscv_cpu_write_misa_bit(), Daniel Henrique Barboza, 2023/10/28
- [PATCH v6 10/12] target/riscv/tcg: add hash table insert helpers, Daniel Henrique Barboza, 2023/10/28
- [PATCH v6 11/12] target/riscv/tcg: honor user choice for G MISA bits, Daniel Henrique Barboza, 2023/10/28
- [PATCH v6 12/12] target/riscv/tcg: warn if profile exts are disabled, Daniel Henrique Barboza, 2023/10/28