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[kvmtool,v3,5/8] riscv: Add zbb extension support

Message ID 20230706173804.1237348-6-apatel@ventanamicro.com
State Superseded
Headers show
Series RISC-V SBI enable/disable, Zbb, Zicboz, and Ssaia support | expand

Commit Message

Anup Patel July 6, 2023, 5:38 p.m. UTC 
The zbb extension allows software to use basic bitmanip instructions.
Let us add the zbb extension to the Guest device tree whenever it is
supported by the host.

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 mbox series

Patch

diff --git a/riscv/fdt.c b/riscv/fdt.c
index 977e962..17d6757 100644
--- a/riscv/fdt.c
+++ b/riscv/fdt.c
@@ -19,6 +19,7 @@  struct isa_ext_info isa_info_arr[] = {
 	{"sstc", KVM_RISCV_ISA_EXT_SSTC},
 	{"svinval", KVM_RISCV_ISA_EXT_SVINVAL},
 	{"svpbmt", KVM_RISCV_ISA_EXT_SVPBMT},
+	{"zbb", KVM_RISCV_ISA_EXT_ZBB},
 	{"zicbom", KVM_RISCV_ISA_EXT_ZICBOM},
 	{"zihintpause", KVM_RISCV_ISA_EXT_ZIHINTPAUSE},
 };
diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
index 56676e3..8448b1a 100644
--- a/riscv/include/kvm/kvm-config-arch.h
+++ b/riscv/include/kvm/kvm-config-arch.h
@@ -34,6 +34,9 @@  struct kvm_config_arch {
 	OPT_BOOLEAN('\0', "disable-svpbmt",				\
 		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_SVPBMT],	\
 		    "Disable Svpbmt Extension"),			\
+	OPT_BOOLEAN('\0', "disable-zbb",				\
+		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBB],	\
+		    "Disable Zbb Extension"),				\
 	OPT_BOOLEAN('\0', "disable-zicbom",				\
 		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZICBOM],	\
 		    "Disable Zicbom Extension"),			\