diff --git a/libc/kernel/uapi/asm-x86/asm/kvm.h b/libc/kernel/uapi/asm-x86/asm/kvm.h
index df1b396..1d7f767 100644
--- a/libc/kernel/uapi/asm-x86/asm/kvm.h
+++ b/libc/kernel/uapi/asm-x86/asm/kvm.h
@@ -313,4 +313,26 @@
 };
 #define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0)
 #define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1)
+#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2)
+#define KVM_STATE_NESTED_GUEST_MODE 0x00000001
+#define KVM_STATE_NESTED_RUN_PENDING 0x00000002
+#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001
+#define KVM_STATE_NESTED_SMM_VMXON 0x00000002
+struct kvm_vmx_nested_state {
+  __u64 vmxon_pa;
+  __u64 vmcs_pa;
+  struct {
+    __u16 flags;
+  } smm;
+};
+struct kvm_nested_state {
+  __u16 flags;
+  __u16 format;
+  __u32 size;
+  union {
+    struct kvm_vmx_nested_state vmx;
+    __u8 pad[120];
+  };
+  __u8 data[0];
+};
 #endif
diff --git a/libc/kernel/uapi/asm-x86/asm/kvm_para.h b/libc/kernel/uapi/asm-x86/asm/kvm_para.h
index 0e4f2e0..47ecca9 100644
--- a/libc/kernel/uapi/asm-x86/asm/kvm_para.h
+++ b/libc/kernel/uapi/asm-x86/asm/kvm_para.h
@@ -31,6 +31,7 @@
 #define KVM_FEATURE_PV_UNHALT 7
 #define KVM_FEATURE_PV_TLB_FLUSH 9
 #define KVM_FEATURE_ASYNC_PF_VMEXIT 10
+#define KVM_FEATURE_PV_SEND_IPI 11
 #define KVM_HINTS_REALTIME 0
 #define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24
 #define MSR_KVM_WALL_CLOCK 0x11
diff --git a/libc/kernel/uapi/asm-x86/asm/sembuf.h b/libc/kernel/uapi/asm-x86/asm/sembuf.h
index 9b7e109..9b96722 100644
--- a/libc/kernel/uapi/asm-x86/asm/sembuf.h
+++ b/libc/kernel/uapi/asm-x86/asm/sembuf.h
@@ -20,10 +20,17 @@
 #define _ASM_X86_SEMBUF_H
 struct semid64_ds {
   struct ipc64_perm sem_perm;
+#ifdef __i386__
+  unsigned long sem_otime;
+  unsigned long sem_otime_high;
+  unsigned long sem_ctime;
+  unsigned long sem_ctime_high;
+#else
   __kernel_time_t sem_otime;
   __kernel_ulong_t __unused1;
   __kernel_time_t sem_ctime;
   __kernel_ulong_t __unused2;
+#endif
   __kernel_ulong_t sem_nsems;
   __kernel_ulong_t __unused3;
   __kernel_ulong_t __unused4;
diff --git a/libc/kernel/uapi/asm-x86/asm/unistd_32.h b/libc/kernel/uapi/asm-x86/asm/unistd_32.h
index 0038efb..4afa676 100644
--- a/libc/kernel/uapi/asm-x86/asm/unistd_32.h
+++ b/libc/kernel/uapi/asm-x86/asm/unistd_32.h
@@ -399,4 +399,6 @@
 #define __NR_pkey_free 382
 #define __NR_statx 383
 #define __NR_arch_prctl 384
+#define __NR_io_pgetevents 385
+#define __NR_rseq 386
 #endif
diff --git a/libc/kernel/uapi/asm-x86/asm/unistd_64.h b/libc/kernel/uapi/asm-x86/asm/unistd_64.h
index 3cde166..a118200 100644
--- a/libc/kernel/uapi/asm-x86/asm/unistd_64.h
+++ b/libc/kernel/uapi/asm-x86/asm/unistd_64.h
@@ -351,4 +351,6 @@
 #define __NR_pkey_alloc 330
 #define __NR_pkey_free 331
 #define __NR_statx 332
+#define __NR_io_pgetevents 333
+#define __NR_rseq 334
 #endif
diff --git a/libc/kernel/uapi/asm-x86/asm/unistd_x32.h b/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
index e10cc6b..b5f3fb1 100644
--- a/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
+++ b/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
@@ -304,6 +304,8 @@
 #define __NR_pkey_alloc (__X32_SYSCALL_BIT + 330)
 #define __NR_pkey_free (__X32_SYSCALL_BIT + 331)
 #define __NR_statx (__X32_SYSCALL_BIT + 332)
+#define __NR_io_pgetevents (__X32_SYSCALL_BIT + 333)
+#define __NR_rseq (__X32_SYSCALL_BIT + 334)
 #define __NR_rt_sigaction (__X32_SYSCALL_BIT + 512)
 #define __NR_rt_sigreturn (__X32_SYSCALL_BIT + 513)
 #define __NR_ioctl (__X32_SYSCALL_BIT + 514)