[kvmtool PATCH v2 06/10] riscv: Add Zfh[min] extensions support

Anup Patel apatel at ventanamicro.com
Mon Mar 25 08:31:37 PDT 2024


When the Zfh[min] extensions are available expose it to the guest
via device tree so that guest can use it.

Signed-off-by: Anup Patel <apatel at ventanamicro.com>
Reviewed-by: Andrew Jones <ajones at ventanamicro.com>
---
 riscv/fdt.c                         | 2 ++
 riscv/include/kvm/kvm-config-arch.h | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/riscv/fdt.c b/riscv/fdt.c
index 44058dc..7687624 100644
--- a/riscv/fdt.c
+++ b/riscv/fdt.c
@@ -29,6 +29,8 @@ struct isa_ext_info isa_info_arr[] = {
 	{"zbkc", KVM_RISCV_ISA_EXT_ZBKC},
 	{"zbkx", KVM_RISCV_ISA_EXT_ZBKX},
 	{"zbs", KVM_RISCV_ISA_EXT_ZBS},
+	{"zfh", KVM_RISCV_ISA_EXT_ZFH},
+	{"zfhmin", KVM_RISCV_ISA_EXT_ZFHMIN},
 	{"zicbom", KVM_RISCV_ISA_EXT_ZICBOM},
 	{"zicboz", KVM_RISCV_ISA_EXT_ZICBOZ},
 	{"zicntr", KVM_RISCV_ISA_EXT_ZICNTR},
diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
index ae648ce..f1ac56b 100644
--- a/riscv/include/kvm/kvm-config-arch.h
+++ b/riscv/include/kvm/kvm-config-arch.h
@@ -64,6 +64,12 @@ struct kvm_config_arch {
 	OPT_BOOLEAN('\0', "disable-zbs",				\
 		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBS],	\
 		    "Disable Zbs Extension"),				\
+	OPT_BOOLEAN('\0', "disable-zfh",				\
+		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFH],	\
+		    "Disable Zfh Extension"),				\
+	OPT_BOOLEAN('\0', "disable-zfhmin",				\
+		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFHMIN],	\
+		    "Disable Zfhmin Extension"),			\
 	OPT_BOOLEAN('\0', "disable-zicbom",				\
 		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZICBOM],	\
 		    "Disable Zicbom Extension"),			\
-- 
2.34.1




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