[Qemu-devel] [PATCH v1 19/28] target/riscv: Disable guest FP support based on virtual status

[Alistair Francis]

When the Hypervisor extension is in use we only enable floating point
support when both status and vsstatus have enabled floating point
support.

Signed-off-by: Alistair Francis <alistair.fran...@wdc.com>
---
 target/riscv/cpu_helper.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 17eec6217b..098873c83e 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -90,6 +90,9 @@ bool riscv_cpu_exec_interrupt(CPUState *cs, int 
interrupt_request)
 bool riscv_cpu_fp_enabled(CPURISCVState *env)
 {
     if (*env->mstatus & MSTATUS_FS) {
+        if (riscv_cpu_virt_enabled(env) && !(env->vsstatus & MSTATUS_FS)) {
+            return false;
+        }
         return true;
     }
 
-- 
2.22.0