[kvm-unit-tests GIT PULL] x86: Fixes, cleanups and new testscases
From: Sean Christopherson
Date: Fri Sep 01 2023 - 19:13:42 EST
This is essentially v2 of the previous attempt[*], sans the fix for exectuable
stack warnings (now fixed for all architectures), plus fixes for nVMX testcases
related to 64-bit hosts (these *just* got posted, but it's not like anyone else
is reviewing KUT x86 changes these days, so I don't see any point in waiting).
There's one non-x86 change to fix a bug in processing "check" entries in
unittests.cfg files. The majority of the x86 changes revolve around nSVM, PMU,
and emulator tests.
[*] https://lore.kernel.org/all/20230622211440.2595272-1-seanjc@xxxxxxxxxx
The following changes since commit e8f8554f810821e37f05112a46ae9775a029b5d1:
Makefile: Move -no-pie from CFLAGS into LDFLAGS (2023-08-22 11:26:00 +0200)
are available in the Git repository at:
https://github.com/kvm-x86/kvm-unit-tests.git tags/kvm-x86-2023.09.01
for you to fetch changes up to d4fba74a42d222d2cfdde65351fac3531a1d6f5c:
nVMX: Fix the noncanonical HOST_RIP testcase (2023-09-01 15:58:19 -0700)
----------------------------------------------------------------
x86 fixes, cleanups, and new testcases, and a few generic changes
- Fix a bug in runtime.bash that caused it to mishandle "check" strings with
multiple entries, e.g. a test that depends on multiple module params
- Make the PMU tests depend on vPMU support being enabled in KVM
- Fix PMU's forced emulation test on CPUs with full-width writes
- Add a PMU testcase for measuring TSX transactional cycles
- Nested SVM testcase for virtual NMIs
- Move a pile of code to ASM_TRY() and "safe" helpers
- Set up the guest stack in the LBRV tests so that the tests don't fail if the
compiler decides to generate function calls in guest code
- Ignore the "mispredict" flag in nSVM's LBRV tests to fix false failures
- Clean up usage of helpers that disable interrupts, e.g. stop inserting
unnecessary nops
- Add helpers to dedup code for programming the APIC timer
- Fix a variety of bugs in nVMX testcases related to being a 64-bit host
----------------------------------------------------------------
Like Xu (2):
x86/pmu: Add Intel Guest Transactional (commited) cycles testcase
x86/pmu: Wrap the written counter value with gp_counter_width
Mathias Krause (15):
x86: Drop types.h
x86: Use symbolic names in exception_mnemonic()
x86: Add vendor specific exception vectors
x86/cet: Use symbolic name for #CP
x86/access: Use 'bool' type as defined via libcflat.h
x86/run_in_user: Preserve exception handler
x86/run_in_user: Relax register constraints of inline asm
x86/run_in_user: Reload SS after successful return
x86/fault_test: Preserve exception handler
x86/emulator64: Relax register constraints for usr_gs_mov()
x86/emulator64: Switch test_sreg() to ASM_TRY()
x86/emulator64: Add non-null selector test
x86/emulator64: Switch test_jmp_noncanonical() to ASM_TRY()
x86/emulator64: Switch test_mmx_movq_mf() to ASM_TRY()
x86/emulator64: Test non-canonical memory access exceptions
Maxim Levitsky (8):
x86: replace irq_{enable|disable}() with sti()/cli()
x86: introduce sti_nop() and sti_nop_cli()
x86: add few helper functions for apic local timer
x86: nSVM: Remove nop after stgi/clgi
x86: nSVM: make svm_intr_intercept_mix_if/gif test a bit more robust
x86: nSVM: use apic_start_timer/apic_stop_timer instead of open coding it
x86: nSVM: Add nested shutdown interception test
x86: nSVM: Remove defunct get_npt_pte() declaration
Santosh Shukla (1):
x86: nSVM: Add support for VNMI test
Sean Christopherson (21):
nSVM: Add helper to report fatal errors in guest
x86: Add macros to wrap ASM_TRY() for single instructions
x86: Convert inputs-only "safe" instruction helpers to asm_safe()
x86: Add macros to wrap ASM_TRY() for single instructions with output(s)
x86: Move invpcid_safe() to processor.h and convert to asm_safe()
x86: Move XSETBV and XGETBV "safe" helpers to processor.h
x86: nSVM: Set up a guest stack in LBRV tests
lib: Expose a subset of VMX's assertion macros
x86: Add defines for the various LBR record bit definitions
x86: nSVM: Ignore mispredict bit in LBR records
x86: nSVM: Replace check_dbgctl() with TEST_EXPECT_EQ() in LBRV test
x86: nSVM: Print out RIP and LBRs from VMCB if LBRV guest test fails
runtime: Convert "check" from string to array so that iterating works
x86/pmu: Make PMU testcases dependent on vPMU being enabled in KVM
nVMX: Test CR4.PCIDE can be set for 64-bit host iff PCID is supported
nVMX: Assert CR4.PAE is set when testing 64-bit host
nVMX: Assert that the test is configured for 64-bit mode
nVMX: Rename vmlaunch_succeeds() to vmlaunch()
nVMX: Shuffle test_host_addr_size() tests to "restore" CR4 and RIP
nVMX: Drop testcase that falsely claims to verify vmcs.HOST_RIP[63:32]
nVMX: Fix the noncanonical HOST_RIP testcase
lib/util.h | 31 ++++
lib/x86/apic.c | 38 ++++
lib/x86/apic.h | 6 +
lib/x86/desc.c | 43 +++--
lib/x86/desc.h | 48 ++++++
lib/x86/fault_test.c | 4 +-
lib/x86/msr.h | 11 ++
lib/x86/processor.h | 137 +++++++++------
lib/x86/smp.c | 2 +-
lib/x86/usermode.c | 38 ++--
scripts/runtime.bash | 1 +
x86/access.c | 11 +-
x86/apic.c | 6 +-
x86/asyncpf.c | 6 +-
x86/cet.c | 2 +-
x86/cmpxchg8b.c | 1 -
x86/emulator.c | 1 -
x86/emulator64.c | 105 +++++++-----
x86/eventinj.c | 22 +--
x86/hyperv_connections.c | 2 +-
x86/hyperv_stimer.c | 4 +-
x86/hyperv_synic.c | 6 +-
x86/intel-iommu.c | 2 +-
x86/ioapic.c | 15 +-
x86/memory.c | 60 ++-----
x86/pcid.c | 8 -
x86/pmu.c | 52 +++++-
x86/pmu_pebs.c | 1 -
x86/svm.c | 17 +-
x86/svm.h | 11 +-
x86/svm_tests.c | 429 +++++++++++++++++++++++-----------------------
x86/taskswitch2.c | 4 +-
x86/tscdeadline_latency.c | 4 +-
x86/types.h | 21 ---
x86/unittests.cfg | 7 +-
x86/vmexit.c | 18 +-
x86/vmx.h | 32 +---
x86/vmx_tests.c | 170 +++++++++---------
x86/xsave.c | 31 +---
39 files changed, 779 insertions(+), 628 deletions(-)
delete mode 100644 x86/types.h