diff --git a/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs
index 3c0f92fa31fef..f3d7a96e82fb1 100644
--- a/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/aarch64_wrs_vxworks.rs
@@ -7,7 +7,7 @@ pub(crate) fn target() -> Target {
             description: None,
             tier: Some(3),
             host_tools: Some(false),
-            std: None, // ?
+            std: Some(true),
         },
         pointer_width: 64,
         data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(),
diff --git a/compiler/rustc_target/src/spec/targets/i686_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/i686_wrs_vxworks.rs
index ba669334e7f4d..c91136c3415c6 100644
--- a/compiler/rustc_target/src/spec/targets/i686_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/i686_wrs_vxworks.rs
@@ -13,7 +13,7 @@ pub(crate) fn target() -> Target {
             description: None,
             tier: Some(3),
             host_tools: Some(false),
-            std: None, // ?
+            std: Some(true),
         },
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
diff --git a/compiler/rustc_target/src/spec/targets/powerpc64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/powerpc64_wrs_vxworks.rs
index 1029a135e4aa7..6544d32a5529a 100644
--- a/compiler/rustc_target/src/spec/targets/powerpc64_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/powerpc64_wrs_vxworks.rs
@@ -14,7 +14,7 @@ pub(crate) fn target() -> Target {
             description: None,
             tier: Some(3),
             host_tools: Some(false),
-            std: None, // ?
+            std: Some(true),
         },
         pointer_width: 64,
         data_layout: "E-m:e-Fi64-i64:64-n32:64-S128-v256:256:256-v512:512:512".into(),
diff --git a/compiler/rustc_target/src/spec/targets/powerpc_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/powerpc_wrs_vxworks.rs
index b19513bf1d7c9..4900d5fef7b73 100644
--- a/compiler/rustc_target/src/spec/targets/powerpc_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/powerpc_wrs_vxworks.rs
@@ -13,7 +13,7 @@ pub(crate) fn target() -> Target {
             description: None,
             tier: Some(3),
             host_tools: Some(false),
-            std: None, // ?
+            std: Some(true),
         },
         pointer_width: 32,
         data_layout: "E-m:e-p:32:32-Fn32-i64:64-n32".into(),
diff --git a/compiler/rustc_target/src/spec/targets/riscv32_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/riscv32_wrs_vxworks.rs
index 4a6f7950b872b..5d4b7a3e946b2 100644
--- a/compiler/rustc_target/src/spec/targets/riscv32_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/riscv32_wrs_vxworks.rs
@@ -7,7 +7,7 @@ pub(crate) fn target() -> Target {
             description: None,
             tier: Some(3),
             host_tools: Some(false),
-            std: None, // STD is a work in progress for this target arch
+            std: Some(true),
         },
         pointer_width: 32,
         data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(),
diff --git a/compiler/rustc_target/src/spec/targets/riscv64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/riscv64_wrs_vxworks.rs
index b0914871a64b0..5cddce29aa056 100644
--- a/compiler/rustc_target/src/spec/targets/riscv64_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/riscv64_wrs_vxworks.rs
@@ -7,7 +7,7 @@ pub(crate) fn target() -> Target {
             description: None,
             tier: Some(3),
             host_tools: Some(false),
-            std: None, // STD is a work in progress for this target arch
+            std: Some(true),
         },
         pointer_width: 64,
         data_layout: "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128".into(),
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/targets/x86_64_wrs_vxworks.rs
index 604f71ffaa616..455715402684c 100644
--- a/compiler/rustc_target/src/spec/targets/x86_64_wrs_vxworks.rs
+++ b/compiler/rustc_target/src/spec/targets/x86_64_wrs_vxworks.rs
@@ -15,7 +15,7 @@ pub(crate) fn target() -> Target {
             description: None,
             tier: Some(3),
             host_tools: Some(false),
-            std: None, // ?
+            std: Some(true),
         },
         pointer_width: 64,
         data_layout:
diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md
index 76b7dad8f1885..1bed02ad48b09 100644
--- a/src/doc/rustc/src/platform-support.md
+++ b/src/doc/rustc/src/platform-support.md
@@ -358,14 +358,14 @@ target | std | host | notes
 [`riscv32imc-esp-espidf`](platform-support/esp-idf.md) | ✓ |  | RISC-V ESP-IDF
 [`riscv32imac-esp-espidf`](platform-support/esp-idf.md) | ✓ |  | RISC-V ESP-IDF
 [`riscv32imafc-esp-espidf`](platform-support/esp-idf.md) | ✓ |  | RISC-V ESP-IDF
-[`riscv32-wrs-vxworks`](platform-support/vxworks.md) | ? |  |
+[`riscv32-wrs-vxworks`](platform-support/vxworks.md) | ✓ |  |
 [`riscv64gc-unknown-hermit`](platform-support/hermit.md) | ✓ |   | RISC-V Hermit
 `riscv64gc-unknown-freebsd` |   |   | RISC-V FreeBSD
 `riscv64gc-unknown-fuchsia` |   |   | RISC-V Fuchsia
 [`riscv64gc-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | RISC-V NetBSD
 [`riscv64gc-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | OpenBSD/riscv64
 [`riscv64-linux-android`](platform-support/android.md) |   |   | RISC-V 64-bit Android
-[`riscv64-wrs-vxworks`](platform-support/vxworks.md) | ? |  |
+[`riscv64-wrs-vxworks`](platform-support/vxworks.md) | ✓ |  |
 `s390x-unknown-linux-musl` |  |  | S390x Linux (kernel 3.2, musl 1.2.3)
 `sparc-unknown-linux-gnu` | ✓ |  | 32-bit SPARC Linux
 [`sparc-unknown-none-elf`](./platform-support/sparc-unknown-none-elf.md) | * |  | Bare 32-bit SPARC V7+