[PATCH v2 2/3] target/riscv/cpu.c: add 'ssstrict' to riscv,isa

[Daniel Henrique Barboza]

'ssstrict' is a RVA23 profile-defined extension defined as follows:

"No non-conforming extensions are present. Attempts to execute
unimplemented opcodes or access unimplemented CSRs in the standard or
reserved encoding spaces raises an illegal instruction exception that
results in a contained trap to the supervisor-mode trap handler."

In short, we need to throw an exception when accessing unimplemented
CSRs or opcodes. We do that, so let's advertise it.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20250529202315.1684198-3-dbarboza@ventanamicro.com>
---
 target/riscv/cpu.c                |   1 +
 tests/data/acpi/riscv64/virt/RHCT | Bin 406 -> 416 bytes
 2 files changed, 1 insertion(+)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index eeb44a2f1e..c1bcf60988 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -217,6 +217,7 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(ssnpm, PRIV_VERSION_1_13_0, ext_ssnpm),
     ISA_EXT_DATA_ENTRY(sspm, PRIV_VERSION_1_13_0, ext_sspm),
     ISA_EXT_DATA_ENTRY(ssstateen, PRIV_VERSION_1_12_0, ext_ssstateen),
+    ISA_EXT_DATA_ENTRY(ssstrict, PRIV_VERSION_1_12_0, has_priv_1_12),
     ISA_EXT_DATA_ENTRY(sstc, PRIV_VERSION_1_12_0, ext_sstc),
     ISA_EXT_DATA_ENTRY(sstvala, PRIV_VERSION_1_12_0, has_priv_1_12),
     ISA_EXT_DATA_ENTRY(sstvecd, PRIV_VERSION_1_12_0, has_priv_1_12),
diff --git a/tests/data/acpi/riscv64/virt/RHCT 
b/tests/data/acpi/riscv64/virt/RHCT
index 
156607dec45b0e63e5b3ebed62e81076dacd80d0..52a4cc4b6380eee3299b965271a39e9e01f5a698
 100644
GIT binary patch
delta 52
zcmbQnynvZ2$iq2g0V4wg<L!xD2CR0Bj0~n5?U@+aic5+zlS?MsG3rguW>n@VV`N}x
IU}Rtb08<(Z?f?J)

delta 45
zcmZ3$JdK$v$iq2g8Y2S(<Ex2W2COEGj0`#(?U@)SdogNHE@M>U$YEq)C}U(`008kX
B2|xe<

-- 
2.49.0