Sean Christopherson ab1ef34416 KVM: selftests: Add test to verify TRIPLE_FAULT on invalid L2 guest state ... Add a selftest to attempt to enter L2 with invalid guests state by exiting to userspace via I/O from L2, and then using KVM_SET_SREGS to set invalid guest state (marking TR unusable is arbitrary chosen for its relative simplicity). This is a regression test for a bug introduced by commit c8607e4a08 ("KVM: x86: nVMX: don't fail nested VM entry on invalid guest state if !from_vmentry"), which incorrectly set vmx->fail=true when L2 had invalid guest state and ultimately triggered a WARN due to nested_vmx_vmexit() seeing vmx->fail==true while attempting to synthesize a nested VM-Exit. The is also a functional test to verify that KVM sythesizes TRIPLE_FAULT for L2, which is somewhat arbitrary behavior, instead of emulating L2. KVM should never emulate L2 due to invalid guest state, as it's architecturally impossible for L1 to run an L2 guest with invalid state as nested VM-Enter should always fail, i.e. L1 needs to do the emulation. Stuffing state via KVM ioctl() is a non-architctural, out-of-band case, hence the TRIPLE_FAULT being rather arbitrary. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20211207193006.120997-5-seanjc@google.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2021-12-20 08:06:55 -05:00
..
aarch64	Merge branch kvm-arm64/selftest/timer into kvmarm-master/next	2021-10-17 11:19:42 +01:00
include	selftests: KVM: Fix non-x86 compiling	2021-12-20 08:06:54 -05:00
lib	selftests: KVM: Fix non-x86 compiling	2021-12-20 08:06:54 -05:00
s390x	KVM: selftests: sync_regs test for diag318	2020-12-10 13:36:05 +01:00
x86_64	KVM: selftests: Add test to verify TRIPLE_FAULT on invalid L2 guest state	2021-12-20 08:06:55 -05:00
.gitignore	KVM: selftests: Add test to verify TRIPLE_FAULT on invalid L2 guest state	2021-12-20 08:06:55 -05:00
access_tracking_perf_test.c	KVM: selftests: Move vCPU thread creation and joining to common helpers	2021-11-16 07:43:28 -05:00
config	selftests: kvm: Adding config fragments	2019-08-09 16:52:38 +02:00
demand_paging_test.c	KVM: selftests: Move vCPU thread creation and joining to common helpers	2021-11-16 07:43:28 -05:00
dirty_log_perf_test.c	KVM: selftests: Move vCPU thread creation and joining to common helpers	2021-11-16 07:43:28 -05:00
dirty_log_test.c	KVM: selftests: Expose align() helpers to tests	2021-11-16 07:43:24 -05:00
hardware_disable_test.c	KVM: selftests: Unconditionally use memslot 0 when loading elf binary	2021-06-24 04:31:17 -04:00
kvm_binary_stats_test.c	KVM: selftests: Add checks for histogram stats bucket_size field	2021-08-20 16:06:32 -04:00
kvm_create_max_vcpus.c	KVM: selftests: Make sure kvm_create_max_vcpus test won't hit RLIMIT_NOFILE	2021-11-26 08:14:20 -05:00
kvm_page_table_test.c	KVM: selftests: page_table_test: fix calculation of guest_test_phys_mem	2021-11-30 03:12:13 -05:00
Makefile	KVM: selftests: Add test to verify TRIPLE_FAULT on invalid L2 guest state	2021-12-20 08:06:55 -05:00
memslot_modification_stress_test.c	KVM: selftests: Use perf_test_destroy_vm in memslot_modification_stress_test	2021-11-16 07:43:28 -05:00
memslot_perf_test.c	KVM: selftests: Make memslot_perf_test arch independent	2021-10-21 11:36:34 +01:00
rseq_test.c	KVM: selftests: Ensure all migrations are performed when test is affined	2021-09-30 04:25:57 -04:00
set_memory_region_test.c	Merge tag 'kvm-s390-master-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD	2021-07-14 12:14:27 -04:00
settings	selftests: kvm: Raise the default timeout to 120 seconds	2021-02-09 08:17:08 -05:00
steal_time.c	x86:	2021-09-27 13:58:23 -07:00
system_counter_offset_test.c	selftests: KVM: Introduce system counter offset test	2021-10-18 14:43:46 -04:00