From 08fa85537e8a8061e232de5e22b52e8304ec0ce9 Mon Sep 17 00:00:00 2001 From: Marios Pomonis Date: Tue, 28 Jan 2025 10:11:00 -0800 Subject: sys/linux/test: add seeds that exercise WFE[T] Add sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfe and sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfet, two seeds that exercise the WFxT path in KVM. --- sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfe | 17 ++++++++++++++++ sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfet | 25 ++++++++++++++++++++++++ 2 files changed, 42 insertions(+) create mode 100644 sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfe create mode 100644 sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfet diff --git a/sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfe b/sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfe new file mode 100644 index 000000000..4cedfd16f --- /dev/null +++ b/sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfe @@ -0,0 +1,17 @@ +# +# requires: arch=arm64 -threaded +# +r0 = openat$kvm(0, &AUTO='/dev/kvm\x00', 0x0, 0x0) +r1 = ioctl$KVM_CREATE_VM(r0, AUTO, 0x0) +r2 = syz_kvm_setup_syzos_vm(r1, &(0x7f0000c00000/0x400000)=nil) +# Perform wfe. +# +r3 = syz_kvm_add_vcpu(r2, &AUTO={0x0, &AUTO=[@code={AUTO, AUTO, {"5f2003d5", 0xd65f03c0}}], AUTO}, 0x0, 0x0) + +r4 = ioctl$KVM_GET_VCPU_MMAP_SIZE(r0, AUTO) +r5 = mmap$KVM_VCPU(&(0x7f0000009000/0x1000)=nil, r4, 0x3, 0x1, r3, 0x0) + +# Run till the first uexit. +# +ioctl$KVM_RUN(r3, AUTO, 0x0) +syz_kvm_assert_syzos_uexit(r5, 0x0) diff --git a/sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfet b/sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfet new file mode 100644 index 000000000..12c90b89f --- /dev/null +++ b/sys/linux/test/arm64-syz_kvm_setup_syzos_vm-wfet @@ -0,0 +1,25 @@ +# +# requires: arch=arm64 -threaded +# +r0 = openat$kvm(0, &AUTO='/dev/kvm\x00', 0x0, 0x0) +r1 = ioctl$KVM_CREATE_VM(r0, AUTO, 0x0) +r2 = syz_kvm_setup_syzos_vm(r1, &(0x7f0000c00000/0x400000)=nil) +# Perform a WFET (wfet x0). +# +r3 = syz_kvm_add_vcpu(r2, &AUTO={0x0, &AUTO=[@code={AUTO, AUTO, {"001003d5", 0xd65f03c0}}], AUTO}, 0x0, 0x0) + +r4 = ioctl$KVM_GET_VCPU_MMAP_SIZE(r0, AUTO) +r5 = mmap$KVM_VCPU(&(0x7f0000009000/0x1000)=nil, r4, 0x3, 0x1, r3, 0x0) + +# Run till the first uexit. +# +ioctl$KVM_RUN(r3, AUTO, 0x0) +syz_kvm_assert_syzos_uexit(r5, 0x0) +# Run till the second uexit. +# +ioctl$KVM_RUN(r3, AUTO, 0x0) +syz_kvm_assert_syzos_uexit(r5, 0xaaaa) +# Run till the end of guest_main(). 0xffffffffffffffff is UEXIT_END. +# +ioctl$KVM_RUN(r3, AUTO, 0x0) +syz_kvm_assert_syzos_uexit(r5, 0xffffffffffffffff) -- cgit mrf-deployment