diff --git a/libc/kernel/uapi/asm-riscv/asm/hwprobe.h b/libc/kernel/uapi/asm-riscv/asm/hwprobe.h
index a18b020..6f8d8f5 100644
--- a/libc/kernel/uapi/asm-riscv/asm/hwprobe.h
+++ b/libc/kernel/uapi/asm-riscv/asm/hwprobe.h
@@ -24,6 +24,35 @@
 #define RISCV_HWPROBE_EXT_ZBB (1 << 4)
 #define RISCV_HWPROBE_EXT_ZBS (1 << 5)
 #define RISCV_HWPROBE_EXT_ZICBOZ (1 << 6)
+#define RISCV_HWPROBE_EXT_ZBC (1 << 7)
+#define RISCV_HWPROBE_EXT_ZBKB (1 << 8)
+#define RISCV_HWPROBE_EXT_ZBKC (1 << 9)
+#define RISCV_HWPROBE_EXT_ZBKX (1 << 10)
+#define RISCV_HWPROBE_EXT_ZKND (1 << 11)
+#define RISCV_HWPROBE_EXT_ZKNE (1 << 12)
+#define RISCV_HWPROBE_EXT_ZKNH (1 << 13)
+#define RISCV_HWPROBE_EXT_ZKSED (1 << 14)
+#define RISCV_HWPROBE_EXT_ZKSH (1 << 15)
+#define RISCV_HWPROBE_EXT_ZKT (1 << 16)
+#define RISCV_HWPROBE_EXT_ZVBB (1 << 17)
+#define RISCV_HWPROBE_EXT_ZVBC (1 << 18)
+#define RISCV_HWPROBE_EXT_ZVKB (1 << 19)
+#define RISCV_HWPROBE_EXT_ZVKG (1 << 20)
+#define RISCV_HWPROBE_EXT_ZVKNED (1 << 21)
+#define RISCV_HWPROBE_EXT_ZVKNHA (1 << 22)
+#define RISCV_HWPROBE_EXT_ZVKNHB (1 << 23)
+#define RISCV_HWPROBE_EXT_ZVKSED (1 << 24)
+#define RISCV_HWPROBE_EXT_ZVKSH (1 << 25)
+#define RISCV_HWPROBE_EXT_ZVKT (1 << 26)
+#define RISCV_HWPROBE_EXT_ZFH (1 << 27)
+#define RISCV_HWPROBE_EXT_ZFHMIN (1 << 28)
+#define RISCV_HWPROBE_EXT_ZIHINTNTL (1 << 29)
+#define RISCV_HWPROBE_EXT_ZVFH (1 << 30)
+#define RISCV_HWPROBE_EXT_ZVFHMIN (1 << 31)
+#define RISCV_HWPROBE_EXT_ZFA (1ULL << 32)
+#define RISCV_HWPROBE_EXT_ZTSO (1ULL << 33)
+#define RISCV_HWPROBE_EXT_ZACAS (1ULL << 34)
+#define RISCV_HWPROBE_EXT_ZICOND (1ULL << 35)
 #define RISCV_HWPROBE_KEY_CPUPERF_0 5
 #define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0)
 #define RISCV_HWPROBE_MISALIGNED_EMULATED (1 << 0)
@@ -32,4 +61,5 @@
 #define RISCV_HWPROBE_MISALIGNED_UNSUPPORTED (4 << 0)
 #define RISCV_HWPROBE_MISALIGNED_MASK (7 << 0)
 #define RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE 6
+#define RISCV_HWPROBE_WHICH_CPUS (1 << 0)
 #endif
diff --git a/libc/kernel/uapi/asm-riscv/asm/kvm.h b/libc/kernel/uapi/asm-riscv/asm/kvm.h
index 470d581..054e1a1 100644
--- a/libc/kernel/uapi/asm-riscv/asm/kvm.h
+++ b/libc/kernel/uapi/asm-riscv/asm/kvm.h
@@ -99,6 +99,33 @@
   KVM_RISCV_ISA_EXT_ZIHPM,
   KVM_RISCV_ISA_EXT_SMSTATEEN,
   KVM_RISCV_ISA_EXT_ZICOND,
+  KVM_RISCV_ISA_EXT_ZBC,
+  KVM_RISCV_ISA_EXT_ZBKB,
+  KVM_RISCV_ISA_EXT_ZBKC,
+  KVM_RISCV_ISA_EXT_ZBKX,
+  KVM_RISCV_ISA_EXT_ZKND,
+  KVM_RISCV_ISA_EXT_ZKNE,
+  KVM_RISCV_ISA_EXT_ZKNH,
+  KVM_RISCV_ISA_EXT_ZKR,
+  KVM_RISCV_ISA_EXT_ZKSED,
+  KVM_RISCV_ISA_EXT_ZKSH,
+  KVM_RISCV_ISA_EXT_ZKT,
+  KVM_RISCV_ISA_EXT_ZVBB,
+  KVM_RISCV_ISA_EXT_ZVBC,
+  KVM_RISCV_ISA_EXT_ZVKB,
+  KVM_RISCV_ISA_EXT_ZVKG,
+  KVM_RISCV_ISA_EXT_ZVKNED,
+  KVM_RISCV_ISA_EXT_ZVKNHA,
+  KVM_RISCV_ISA_EXT_ZVKNHB,
+  KVM_RISCV_ISA_EXT_ZVKSED,
+  KVM_RISCV_ISA_EXT_ZVKSH,
+  KVM_RISCV_ISA_EXT_ZVKT,
+  KVM_RISCV_ISA_EXT_ZFH,
+  KVM_RISCV_ISA_EXT_ZFHMIN,
+  KVM_RISCV_ISA_EXT_ZIHINTNTL,
+  KVM_RISCV_ISA_EXT_ZVFH,
+  KVM_RISCV_ISA_EXT_ZVFHMIN,
+  KVM_RISCV_ISA_EXT_ZFA,
   KVM_RISCV_ISA_EXT_MAX,
 };
 enum KVM_RISCV_SBI_EXT_ID {
@@ -112,8 +139,13 @@
   KVM_RISCV_SBI_EXT_EXPERIMENTAL,
   KVM_RISCV_SBI_EXT_VENDOR,
   KVM_RISCV_SBI_EXT_DBCN,
+  KVM_RISCV_SBI_EXT_STA,
   KVM_RISCV_SBI_EXT_MAX,
 };
+struct kvm_riscv_sbi_sta {
+  unsigned long shmem_lo;
+  unsigned long shmem_hi;
+};
 #define KVM_RISCV_TIMER_STATE_OFF 0
 #define KVM_RISCV_TIMER_STATE_ON 1
 #define KVM_REG_SIZE(id) (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
@@ -155,6 +187,9 @@
 #define KVM_REG_RISCV_VECTOR (0x09 << KVM_REG_RISCV_TYPE_SHIFT)
 #define KVM_REG_RISCV_VECTOR_CSR_REG(name) (offsetof(struct __riscv_v_ext_state, name) / sizeof(unsigned long))
 #define KVM_REG_RISCV_VECTOR_REG(n) ((n) + sizeof(struct __riscv_v_ext_state) / sizeof(unsigned long))
+#define KVM_REG_RISCV_SBI_STATE (0x0a << KVM_REG_RISCV_TYPE_SHIFT)
+#define KVM_REG_RISCV_SBI_STA (0x0 << KVM_REG_RISCV_SUBTYPE_SHIFT)
+#define KVM_REG_RISCV_SBI_STA_REG(name) (offsetof(struct kvm_riscv_sbi_sta, name) / sizeof(unsigned long))
 #define KVM_DEV_RISCV_APLIC_ALIGN 0x1000
 #define KVM_DEV_RISCV_APLIC_SIZE 0x4000
 #define KVM_DEV_RISCV_APLIC_MAX_HARTS 0x4000