[kvmtool PATCH 3/3] riscv: Add Zacas extensiona support

[Anup Patel <apatel@ventanamicro.com>]

When the Zacas 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>
---
 riscv/fdt.c                         | 1 +
 riscv/include/kvm/kvm-config-arch.h | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/riscv/fdt.c b/riscv/fdt.c
index 418b668..cf367b9 100644
--- a/riscv/fdt.c
+++ b/riscv/fdt.c
@@ -22,6 +22,7 @@ struct isa_ext_info isa_info_arr[] = {
 	{"svinval", KVM_RISCV_ISA_EXT_SVINVAL},
 	{"svnapot", KVM_RISCV_ISA_EXT_SVNAPOT},
 	{"svpbmt", KVM_RISCV_ISA_EXT_SVPBMT},
+	{"zacas", KVM_RISCV_ISA_EXT_ZACAS},
 	{"zba", KVM_RISCV_ISA_EXT_ZBA},
 	{"zbb", KVM_RISCV_ISA_EXT_ZBB},
 	{"zbc", KVM_RISCV_ISA_EXT_ZBC},
diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
index 7cfbf30..17f0ceb 100644
--- a/riscv/include/kvm/kvm-config-arch.h
+++ b/riscv/include/kvm/kvm-config-arch.h
@@ -43,6 +43,9 @@ struct kvm_config_arch {
 	OPT_BOOLEAN('\0', "disable-svpbmt",				\
 		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_SVPBMT],	\
 		    "Disable Svpbmt Extension"),			\
+	OPT_BOOLEAN('\0', "disable-zacas",				\
+		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZACAS],	\
+		    "Disable Zacas Extension"),				\
 	OPT_BOOLEAN('\0', "disable-zba",				\
 		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBA],	\
 		    "Disable Zba Extension"),				\
-- 
2.34.1