[kvmtool PATCH 03/10] riscv: Add Zbc extension support

Anup Patel
2024-02-14T12:22:01Z

When the Zbc 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 8485acf..84b6087 100644
--- a/riscv/fdt.c
+++ b/riscv/fdt.c
@@ -24,6 +24,7 @@ struct isa_ext_info isa_info_arr[] = {
{"svpbmt", KVM_RISCV_ISA_EXT_SVPBMT},
{"zba", KVM_RISCV_ISA_EXT_ZBA},
{"zbb", KVM_RISCV_ISA_EXT_ZBB},
+ {"zbc", KVM_RISCV_ISA_EXT_ZBC},
{"zbs", KVM_RISCV_ISA_EXT_ZBS},
{"zicbom", KVM_RISCV_ISA_EXT_ZICBOM},
{"zicboz", KVM_RISCV_ISA_EXT_ZICBOZ},
diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
index d2fc2d4..6d09eee 100644
--- a/riscv/include/kvm/kvm-config-arch.h
+++ b/riscv/include/kvm/kvm-config-arch.h
@@ -49,6 +49,9 @@ struct kvm_config_arch {
OPT_BOOLEAN('\0', "disable-zbb", \
&(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBB], \
"Disable Zbb Extension"), \
+ OPT_BOOLEAN('\0', "disable-zbc", \
+ &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBC], \
+ "Disable Zbc Extension"), \
OPT_BOOLEAN('\0', "disable-zbs", \
&(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBS], \
"Disable Zbs Extension"), \
--
2.34.1