riscv: Add Zfa extensiona support
When the Zfa extension is available expose it to the guest
via device tree so that guest can use it.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20240325153141.6816-10-apatel@ventanamicro.com
Signed-off-by: Will Deacon <will@kernel.org>
diff --git a/riscv/fdt.c b/riscv/fdt.c
index 005301e..cc8070d 100644
--- a/riscv/fdt.c
+++ b/riscv/fdt.c
@@ -29,6 +29,7 @@
{"zbkc", KVM_RISCV_ISA_EXT_ZBKC},
{"zbkx", KVM_RISCV_ISA_EXT_ZBKX},
{"zbs", KVM_RISCV_ISA_EXT_ZBS},
+ {"zfa", KVM_RISCV_ISA_EXT_ZFA},
{"zfh", KVM_RISCV_ISA_EXT_ZFH},
{"zfhmin", KVM_RISCV_ISA_EXT_ZFHMIN},
{"zicbom", KVM_RISCV_ISA_EXT_ZICBOM},
diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
index 10ca3b8..6415d3d 100644
--- a/riscv/include/kvm/kvm-config-arch.h
+++ b/riscv/include/kvm/kvm-config-arch.h
@@ -64,6 +64,9 @@
OPT_BOOLEAN('\0', "disable-zbs", \
&(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBS], \
"Disable Zbs Extension"), \
+ OPT_BOOLEAN('\0', "disable-zfa", \
+ &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFA], \
+ "Disable Zfa Extension"), \
OPT_BOOLEAN('\0', "disable-zfh", \
&(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFH], \
"Disable Zfh Extension"), \
