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[kvmtool,4/5] riscv: Add Sstc extension support

Message ID 20220815101325.477694-5-apatel@ventanamicro.com
State Accepted
Headers show
Series KVMTOOL RISC-V Svpbmt and Sstc Support | expand

Commit Message

Anup Patel Aug. 15, 2022, 10:13 a.m. UTC 
From: Atish Patra <atishp@rivosinc.com>

Sstc extension allows the guest OS to program the timer directly without
relying on the SBI call. The kernel detects the presence of Sstc extnesion
from the riscv,isa DT property. Add the Sstc extension to the device tree
if it is supported by the host.

Signed-off-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
 riscv/fdt.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/riscv/fdt.c b/riscv/fdt.c
index eb7851e..aeba042 100644
--- a/riscv/fdt.c
+++ b/riscv/fdt.c
@@ -18,6 +18,7 @@  struct isa_ext_info {
 
 struct isa_ext_info isa_info_arr[] = {
 	{"svpbmt", KVM_RISCV_ISA_EXT_SVPBMT},
+	{"sstc", KVM_RISCV_ISA_EXT_SSTC},
 };
 
 static void dump_fdt(const char *dtb_file, void *fdt)