[PULL,29/49] target/riscv: Add cfg property for Zvkt extension

Commit Message

Alistair Francis Nov. 7, 2023, 2:29 a.m. UTC

From: Max Chou <[e-mail]>

Vector crypto spec defines the Zvkt extension that included all of the
instructions of Zvbb & Zvbc extensions and some vector instructions.

Signed-off-by: Max Chou <[e-mail]>
Acked-by: Alistair Francis <[e-mail]>
Reviewed-by: Daniel Henrique Barboza <[e-mail]>
Message-ID: <[e-mail]>
Signed-off-by: Alistair Francis <[e-mail]>
---
 target/riscv/cpu_cfg.h     | 1 +
 target/riscv/tcg/tcg-cpu.c | 5 +++++
 2 files changed, 6 insertions(+)

Patch

diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h
index 6eef4a51ea..1f0dac5c8a 100644
--- a/target/riscv/cpu_cfg.h
+++ b/target/riscv/cpu_cfg.h
@@ -96,6 +96,7 @@  struct RISCVCPUConfig {
     bool ext_zvknhb;
     bool ext_zvksed;
     bool ext_zvksh;
+    bool ext_zvkt;
     bool ext_zmmul;
     bool ext_zvfbfmin;
     bool ext_zvfbfwma;
diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 093bda2e75..87baae56a1 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -499,6 +499,11 @@  void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
         return;
     }
 
+    if (cpu->cfg.ext_zvkt) {
+        cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvbb), true);
+        cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvbc), true);
+    }
+
     /*
      * In principle Zve*x would also suffice here, were they supported
      * in qemu