diff --git a/libc/kernel/uapi/asm-x86/asm/kvm.h b/libc/kernel/uapi/asm-x86/asm/kvm.h
index 17b1c5d..cd647b6 100644
--- a/libc/kernel/uapi/asm-x86/asm/kvm.h
+++ b/libc/kernel/uapi/asm-x86/asm/kvm.h
@@ -94,6 +94,7 @@
 #define KVM_NR_IRQCHIPS 3
 #define KVM_RUN_X86_SMM (1 << 0)
 #define KVM_RUN_X86_BUS_LOCK (1 << 1)
+#define KVM_RUN_X86_GUEST_MODE (1 << 2)
 struct kvm_regs {
   __u64 rax, rbx, rcx, rdx;
   __u64 rsi, rdi, rsp, rbp;
@@ -532,6 +533,9 @@
   KVM_SEV_GET_ATTESTATION_REPORT,
   KVM_SEV_SEND_CANCEL,
   KVM_SEV_INIT2,
+  KVM_SEV_SNP_LAUNCH_START = 100,
+  KVM_SEV_SNP_LAUNCH_UPDATE,
+  KVM_SEV_SNP_LAUNCH_FINISH,
   KVM_SEV_NR_MAX,
 };
 struct kvm_sev_cmd {
@@ -644,6 +648,42 @@
   __u32 trans_len;
   __u32 pad2;
 };
+struct kvm_sev_snp_launch_start {
+  __u64 policy;
+  __u8 gosvw[16];
+  __u16 flags;
+  __u8 pad0[6];
+  __u64 pad1[4];
+};
+#define KVM_SEV_SNP_PAGE_TYPE_NORMAL 0x1
+#define KVM_SEV_SNP_PAGE_TYPE_ZERO 0x3
+#define KVM_SEV_SNP_PAGE_TYPE_UNMEASURED 0x4
+#define KVM_SEV_SNP_PAGE_TYPE_SECRETS 0x5
+#define KVM_SEV_SNP_PAGE_TYPE_CPUID 0x6
+struct kvm_sev_snp_launch_update {
+  __u64 gfn_start;
+  __u64 uaddr;
+  __u64 len;
+  __u8 type;
+  __u8 pad0;
+  __u16 flags;
+  __u32 pad1;
+  __u64 pad2[4];
+};
+#define KVM_SEV_SNP_ID_BLOCK_SIZE 96
+#define KVM_SEV_SNP_ID_AUTH_SIZE 4096
+#define KVM_SEV_SNP_FINISH_DATA_SIZE 32
+struct kvm_sev_snp_launch_finish {
+  __u64 id_block_uaddr;
+  __u64 id_auth_uaddr;
+  __u8 id_block_en;
+  __u8 auth_key_en;
+  __u8 vcek_disabled;
+  __u8 host_data[KVM_SEV_SNP_FINISH_DATA_SIZE];
+  __u8 pad0[3];
+  __u16 flags;
+  __u64 pad1[4];
+};
 #define KVM_X2APIC_API_USE_32BIT_IDS (1ULL << 0)
 #define KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK (1ULL << 1)
 struct kvm_hyperv_eventfd {
@@ -667,4 +707,5 @@
 #define KVM_X86_SW_PROTECTED_VM 1
 #define KVM_X86_SEV_VM 2
 #define KVM_X86_SEV_ES_VM 3
+#define KVM_X86_SNP_VM 4
 #endif
diff --git a/libc/kernel/uapi/asm-x86/asm/svm.h b/libc/kernel/uapi/asm-x86/asm/svm.h
index ffbf0b3..4f165fa 100644
--- a/libc/kernel/uapi/asm-x86/asm/svm.h
+++ b/libc/kernel/uapi/asm-x86/asm/svm.h
@@ -117,6 +117,7 @@
 #define SVM_VMGEXIT_AP_CREATE_ON_INIT 0
 #define SVM_VMGEXIT_AP_CREATE 1
 #define SVM_VMGEXIT_AP_DESTROY 2
+#define SVM_VMGEXIT_SNP_RUN_VMPL 0x80000018
 #define SVM_VMGEXIT_HV_FEATURES 0x8000fffd
 #define SVM_VMGEXIT_TERM_REQUEST 0x8000fffe
 #define SVM_VMGEXIT_TERM_REASON(reason_set,reason_code) (((((u64) reason_set) & 0xf)) | ((((u64) reason_code) & 0xff) << 4))
diff --git a/libc/kernel/uapi/asm-x86/asm/unistd_64.h b/libc/kernel/uapi/asm-x86/asm/unistd_64.h
index 5dd666c..d5408a3 100644
--- a/libc/kernel/uapi/asm-x86/asm/unistd_64.h
+++ b/libc/kernel/uapi/asm-x86/asm/unistd_64.h
@@ -341,6 +341,7 @@
 #define __NR_statx 332
 #define __NR_io_pgetevents 333
 #define __NR_rseq 334
+#define __NR_uretprobe 335
 #define __NR_pidfd_send_signal 424
 #define __NR_io_uring_setup 425
 #define __NR_io_uring_enter 426
diff --git a/libc/kernel/uapi/asm-x86/asm/unistd_x32.h b/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
index a2ff6f4..fdcf7e6 100644
--- a/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
+++ b/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
@@ -294,6 +294,7 @@
 #define __NR_statx (__X32_SYSCALL_BIT + 332)
 #define __NR_io_pgetevents (__X32_SYSCALL_BIT + 333)
 #define __NR_rseq (__X32_SYSCALL_BIT + 334)
+#define __NR_uretprobe (__X32_SYSCALL_BIT + 335)
 #define __NR_pidfd_send_signal (__X32_SYSCALL_BIT + 424)
 #define __NR_io_uring_setup (__X32_SYSCALL_BIT + 425)
 #define __NR_io_uring_enter (__X32_SYSCALL_BIT + 426)