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[kvmtool,4/8] riscv: Add Zcb extension support

Message ID 20240831112743.379709-5-apatel@ventanamicro.com (mailing list archive)
State New, archived
Headers show
Series Add RISC-V ISA extensions based on Linux-6.11 | expand

Commit Message

Anup Patel Aug. 31, 2024, 11:27 a.m. UTC 
When the Zcb extension is available expose it to the guest
via device tree so that guest can use it.

Signed-off-by: Anup Patel Anup Patel <apatel@ventanamicro.com>
---
 riscv/fdt.c                         | 1 +
 riscv/include/kvm/kvm-config-arch.h | 3 +++
 2 files changed, 4 insertions(+)
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Patch

diff --git a/riscv/fdt.c b/riscv/fdt.c
index 4fe4583..c62d4a3 100644
--- a/riscv/fdt.c
+++ b/riscv/fdt.c
@@ -33,6 +33,7 @@  struct isa_ext_info isa_info_arr[] = {
 	{"zbkx", KVM_RISCV_ISA_EXT_ZBKX},
 	{"zbs", KVM_RISCV_ISA_EXT_ZBS},
 	{"zca", KVM_RISCV_ISA_EXT_ZCA},
+	{"zcb", KVM_RISCV_ISA_EXT_ZCB},
 	{"zfa", KVM_RISCV_ISA_EXT_ZFA},
 	{"zfh", KVM_RISCV_ISA_EXT_ZFH},
 	{"zfhmin", KVM_RISCV_ISA_EXT_ZFHMIN},
diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
index 40679ef..68fc47c 100644
--- a/riscv/include/kvm/kvm-config-arch.h
+++ b/riscv/include/kvm/kvm-config-arch.h
@@ -76,6 +76,9 @@  struct kvm_config_arch {
 	OPT_BOOLEAN('\0', "disable-zca",				\
 		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZCA],	\
 		    "Disable Zca Extension"),				\
+	OPT_BOOLEAN('\0', "disable-zcb",				\
+		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZCB],	\
+		    "Disable Zcb Extension"),				\
 	OPT_BOOLEAN('\0', "disable-zfa",				\
 		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFA],	\
 		    "Disable Zfa Extension"),				\