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>
Zongmin Zhou committed
May 13, 2026 at 15:02 UTC
e217f49cc2a752f9bf9fbeec75d4279838d61554
1 file changed
+3
target/riscv/kvm/kvm-cpu.c
+3
@@ -309,6 +309,7 @@ static KVMCPUConfig kvm_multi_ext_cfgs[] = {
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KVM_EXT_CFG("zacas", ext_zacas, KVM_RISCV_ISA_EXT_ZACAS),
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KVM_EXT_CFG("zawrs", ext_zawrs, KVM_RISCV_ISA_EXT_ZAWRS),
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KVM_EXT_CFG("zfa", ext_zfa, KVM_RISCV_ISA_EXT_ZFA),
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+ KVM_EXT_CFG("zfbfmin", ext_zfbfmin, KVM_RISCV_ISA_EXT_ZFBFMIN),
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KVM_EXT_CFG("zfh", ext_zfh, KVM_RISCV_ISA_EXT_ZFH),
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KVM_EXT_CFG("zfhmin", ext_zfhmin, KVM_RISCV_ISA_EXT_ZFHMIN),
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KVM_EXT_CFG("zba", ext_zba, KVM_RISCV_ISA_EXT_ZBA),
@@ -334,6 +335,8 @@ static KVMCPUConfig kvm_multi_ext_cfgs[] = {
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KVM_EXT_CFG("zvbc", ext_zvbc, KVM_RISCV_ISA_EXT_ZVBC),
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KVM_EXT_CFG("zvfh", ext_zvfh, KVM_RISCV_ISA_EXT_ZVFH),
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KVM_EXT_CFG("zvfhmin", ext_zvfhmin, KVM_RISCV_ISA_EXT_ZVFHMIN),
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+ KVM_EXT_CFG("zvfbfmin", ext_zvfbfmin, KVM_RISCV_ISA_EXT_ZVFBFMIN),
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+ KVM_EXT_CFG("zvfbfwma", ext_zvfbfwma, KVM_RISCV_ISA_EXT_ZVFBFWMA),
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KVM_EXT_CFG("zvkb", ext_zvkb, KVM_RISCV_ISA_EXT_ZVKB),
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KVM_EXT_CFG("zvkg", ext_zvkg, KVM_RISCV_ISA_EXT_ZVKG),
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KVM_EXT_CFG("zvkned", ext_zvkned, KVM_RISCV_ISA_EXT_ZVKNED),