target/riscv/kvm: Add BFloat16 extensions support

Expose the BFloat16 extensions (Zfbfmin, Zvfbfmin, Zvfbfwma) to KVM guests
when available in hardware.

Signed-off-by: Zongmin Zhou <zhouzongmin@kylinos.cn>
Reviewed-by: Daniel Henrique Barboza <daniel.barboza@oss.qualcomm.com>
Message-ID: <1258febb0eeb4ee286eb88f70b077a7f1ece507f.1778653159.git.zhouzongmin@kylinos.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c
index 608495630f7d104233f2dff6ad911bc2ede718a8..34f60bd80c3c24ef03d2d4d2cb0f2c3b74121fdc 100644 (file)
--- a/target/riscv/kvm/kvm-cpu.c
+++ b/target/riscv/kvm/kvm-cpu.c
@@ -309,6 +309,7 @@ static KVMCPUConfig kvm_multi_ext_cfgs[] = {
     KVM_EXT_CFG("zacas", ext_zacas, KVM_RISCV_ISA_EXT_ZACAS),
     KVM_EXT_CFG("zawrs", ext_zawrs, KVM_RISCV_ISA_EXT_ZAWRS),
     KVM_EXT_CFG("zfa", ext_zfa, KVM_RISCV_ISA_EXT_ZFA),
+    KVM_EXT_CFG("zfbfmin", ext_zfbfmin, KVM_RISCV_ISA_EXT_ZFBFMIN),
     KVM_EXT_CFG("zfh", ext_zfh, KVM_RISCV_ISA_EXT_ZFH),
     KVM_EXT_CFG("zfhmin", ext_zfhmin, KVM_RISCV_ISA_EXT_ZFHMIN),
     KVM_EXT_CFG("zba", ext_zba, KVM_RISCV_ISA_EXT_ZBA),
@@ -334,6 +335,8 @@ static KVMCPUConfig kvm_multi_ext_cfgs[] = {
     KVM_EXT_CFG("zvbc", ext_zvbc, KVM_RISCV_ISA_EXT_ZVBC),
     KVM_EXT_CFG("zvfh", ext_zvfh, KVM_RISCV_ISA_EXT_ZVFH),
     KVM_EXT_CFG("zvfhmin", ext_zvfhmin, KVM_RISCV_ISA_EXT_ZVFHMIN),
+    KVM_EXT_CFG("zvfbfmin", ext_zvfbfmin, KVM_RISCV_ISA_EXT_ZVFBFMIN),
+    KVM_EXT_CFG("zvfbfwma", ext_zvfbfwma, KVM_RISCV_ISA_EXT_ZVFBFWMA),
     KVM_EXT_CFG("zvkb", ext_zvkb, KVM_RISCV_ISA_EXT_ZVKB),
     KVM_EXT_CFG("zvkg", ext_zvkg, KVM_RISCV_ISA_EXT_ZVKG),
     KVM_EXT_CFG("zvkned", ext_zvkned, KVM_RISCV_ISA_EXT_ZVKNED),