[RFC PATCH v3 1/3] target/riscv: Add Zvqdotq cfg property

[Max Chou <max.chou@sifive.com>]

The Zvqdotq extension is the vector dot-product extension of RISC-V.

Signed-off-by: Max Chou <max.chou@sifive.com>
---
 target/riscv/cpu.c                | 1 +
 target/riscv/cpu_cfg_fields.h.inc | 1 +
 target/riscv/tcg/tcg-cpu.c        | 5 +++++
 3 files changed, 7 insertions(+)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index d055ddf462..95edd02e68 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -187,6 +187,7 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(zvksg, PRIV_VERSION_1_12_0, ext_zvksg),
     ISA_EXT_DATA_ENTRY(zvksh, PRIV_VERSION_1_12_0, ext_zvksh),
     ISA_EXT_DATA_ENTRY(zvkt, PRIV_VERSION_1_12_0, ext_zvkt),
+    ISA_EXT_DATA_ENTRY(zvqdotq, PRIV_VERSION_1_12_0, ext_zvqdotq),
     ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx),
     ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin),
     ISA_EXT_DATA_ENTRY(sdtrig, PRIV_VERSION_1_12_0, debug),
diff --git a/target/riscv/cpu_cfg_fields.h.inc b/target/riscv/cpu_cfg_fields.h.inc
index e2d116f0df..5da59c22d6 100644
--- a/target/riscv/cpu_cfg_fields.h.inc
+++ b/target/riscv/cpu_cfg_fields.h.inc
@@ -100,6 +100,7 @@ BOOL_FIELD(ext_zvfbfmin)
 BOOL_FIELD(ext_zvfbfwma)
 BOOL_FIELD(ext_zvfh)
 BOOL_FIELD(ext_zvfhmin)
+BOOL_FIELD(ext_zvqdotq)
 BOOL_FIELD(ext_smaia)
 BOOL_FIELD(ext_ssaia)
 BOOL_FIELD(ext_smctr)
diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 78fb279184..7015370ab0 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -767,6 +767,11 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
         return;
     }
 
+    if (cpu->cfg.ext_zvqdotq && !cpu->cfg.ext_zve32x) {
+        error_setg(errp, "Zvqdotq extension requires V or Zve* extensions");
+        return;
+    }
+
     if ((cpu->cfg.ext_zvbc || cpu->cfg.ext_zvknhb) && !cpu->cfg.ext_zve64x) {
         error_setg(
             errp,
-- 
2.39.3