diff --git a/libc/kernel/uapi/asm-arm64/asm/hwcap.h b/libc/kernel/uapi/asm-arm64/asm/hwcap.h
index 442600d..af32056 100644
--- a/libc/kernel/uapi/asm-arm64/asm/hwcap.h
+++ b/libc/kernel/uapi/asm-arm64/asm/hwcap.h
@@ -83,4 +83,5 @@
 #define HWCAP2_SME_FA64 (1 << 30)
 #define HWCAP2_WFXT (1UL << 31)
 #define HWCAP2_EBF16 (1UL << 32)
+#define HWCAP2_SVE_EBF16 (1UL << 33)
 #endif
diff --git a/libc/kernel/uapi/asm-arm64/asm/perf_regs.h b/libc/kernel/uapi/asm-arm64/asm/perf_regs.h
index 71d496f..e18fd05 100644
--- a/libc/kernel/uapi/asm-arm64/asm/perf_regs.h
+++ b/libc/kernel/uapi/asm-arm64/asm/perf_regs.h
@@ -53,5 +53,8 @@
   PERF_REG_ARM64_SP,
   PERF_REG_ARM64_PC,
   PERF_REG_ARM64_MAX,
+  PERF_REG_ARM64_VG = 46,
+  PERF_REG_ARM64_EXTENDED_MAX
 };
+#define PERF_REG_EXTENDED_MASK (1ULL << PERF_REG_ARM64_VG)
 #endif