[PULL,49/54] target/riscv/cpu.c: remove priv_ver check from riscv_isa_string_ext()

Commit Message

Alistair Francis July 10, 2023, 12:32 p.m. UTC

From: Daniel Henrique Barboza <[e-mail]>

riscv_isa_string_ext() is being used by riscv_isa_string(), which is
then used by boards to retrieve the 'riscv,isa' string to be written in
the FDT. All this happens after riscv_cpu_realize(), meaning that we're
already past riscv_cpu_validate_set_extensions() and, more important,
riscv_cpu_disable_priv_spec_isa_exts().

This means that all extensions that needed to be disabled due to
priv_spec mismatch are already disabled. Checking this again during
riscv_isa_string_ext() is unneeded. Remove it.

As a bonus, riscv_isa_string_ext() can now be used with the 'host'
KVM-only CPU type since it doesn't have a env->priv_ver assigned and it
would fail this check for no good reason.

Signed-off-by: Daniel Henrique Barboza <[e-mail]>
Reviewed-by: Andrew Jones <[e-mail]>
Reviewed-by: Alistair Francis <[e-mail]>
Message-Id: <[e-mail]>
Signed-off-by: Alistair Francis <[e-mail]>
---
 target/riscv/cpu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Patch

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index deb3c0f035..2acf77949f 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -2124,8 +2124,7 @@  static void riscv_isa_string_ext(RISCVCPU *cpu, char **isa_str,
     int i;
 
     for (i = 0; i < ARRAY_SIZE(isa_edata_arr); i++) {
-        if (cpu->env.priv_ver >= isa_edata_arr[i].min_version &&
-            isa_ext_is_enabled(cpu, &isa_edata_arr[i])) {
+        if (isa_ext_is_enabled(cpu, &isa_edata_arr[i])) {
             new = g_strconcat(old, "_", isa_edata_arr[i].name, NULL);
             g_free(old);
             old = new;