[kvm-unit-tests GIT PULL] x86: Fixes, cleanups, and new sub-tests

[Sean Christopherson <seanjc@google.com>]

Please pull/merge a pile of x86 cleanups and fixes, most of which have been
waiting for review/merge for quite some time.  The only non-trivial changes that
haven't been posted are the massaged version of the PMU cleanup patches.

Note, the very last commit will fail spectacularly on kvm/queue due to a KVM
bug: https://lore.kernel.org/all/20220607213604.3346000-4-seanjc@google.com.

Other than that, tested on Intel and AMD, both 64-bit and 32-bit.

Thanks!


The following changes since commit 7b2e41767bb8caf91972ee32e4ca85ec630584e2:

  Merge branch 's390x-next-2022-07' into 'master' (2022-07-21 14:41:56 +0000)

are available in the Git repository at:

  https://github.com/sean-jc/kvm-unit-tests.git tags/for_paolo

for you to fetch changes up to ff081d8ad4a4e53a9d129cde1bc9f249d65cdf32:

  nVMX: Add subtest to verify VMXON succeeds/#UDs on good/bad CR0/CR4 (2022-07-21 13:33:16 -0700)

----------------------------------------------------------------
x86 fixes, cleanups, and new sub-tests:

  - Bug fix for the VMX-preemption timer expiration test
  - Refactor SVM tests to split out NPT tests
  - Add tests for MCE banks to MSR test
  - Add SMP Support for x86 UEFI tests
  - x86: nVMX: Add VMXON #UD test (and exception cleanup)
  - PMU cleanup and related nVMX bug fixes

----------------------------------------------------------------
Jim Mattson (1):
      x86: VMX: Fix the VMX-preemption timer expiration test

Manali Shukla (5):
      x86: nSVM: Extract core functionality of main() to helper run_svm_tests()
      x86: Add flags to control behavior of set_mmu_range()
      x86: nSVM: Build up the nested page table dynamically
      x86: nSVM: Correct indentation for svm.c
      x86: nSVM: Correct indentation for svm_tests.c

Sean Christopherson (21):
      x86: nSVM: Move all nNPT test cases from svm_tests.c to a separate file.
      x86: nSVM: Run non-NPT nSVM tests with PT_USER_MASK enabled
      x86: nSVM: Add macros to create SVM's NPT tests, reduce boilerplate code
      x86: msr: Take the MSR index and name separately in low level helpers
      x86: msr: Add tests for MCE bank MSRs
      x86: Use an explicit magic string to detect that dummy.efi passes
      x86: Rename ap_init() to bringup_aps()
      x86: Add ap_online() to consolidate final "AP is alive!" code
      x86: Use BIT() to define architectural bits
      x86: Replace spaces with tables in processor.h
      x86: Use "safe" terminology instead of "checking"
      x86: Use "safe" helpers to implement unsafe CRs accessors
      x86: Provide result of RDMSR from "safe" variant
      nVMX: Check the results of VMXON/VMXOFF in feature control test
      nVMX: Check result of VMXON in INIT/SIPI tests
      nVMX: Wrap VMXON in ASM_TRY(), a.k.a. in exception fixup
      nVMX: Simplify test_vmxon() by returning directly on failure
      x86: Drop cpuid_osxsave(), just use this_cpu_has(X86_FEATURE_OSXSAVE)
      nVMX: Move wrappers of this_cpu_has() to nVMX's VM-Exit test
      nVMX: Rename monitor_support() to this_cpu_has_mwait(), drop #define
      nVMX: Add subtest to verify VMXON succeeds/#UDs on good/bad CR0/CR4

Varad Gautam (10):
      x86: Share realmode trampoline between i386 and x86_64
      x86: Move ap_init() to smp.c
      x86: Move load_idt() to desc.c
      x86: desc: Split IDT entry setup into a generic helper
      x86: Move load_gdt_tss() to desc.c
      x86: efi: Provide a stack within testcase memory
      x86: efi: Provide percpu storage
      x86: Move 32-bit => 64-bit transition code to trampolines.S
      x86: efi, smp: Transition APs from 16-bit to 32-bit mode
      x86: Provide a common 64-bit AP entrypoint for EFI and non-EFI

Yang Weijiang (4):
      x86: nVMX: Use report_skip() to print messages when VMX tests are skipped
      x86: Use helpers to fetch supported perf capabilities
      x86: Skip perf related tests when platform cannot support
      x86: Check platform pmu capabilities before run lbr tests

 lib/alloc_page.h          |    3 +
 lib/x86/apic.c            |    2 -
 lib/x86/asm/setup.h       |    3 +
 lib/x86/desc.c            |   46 +-
 lib/x86/desc.h            |    5 +-
 lib/x86/processor.h       |  455 +++++++++++--------
 lib/x86/setup.c           |   82 +++-
 lib/x86/smp.c             |  150 ++++++-
 lib/x86/smp.h             |   11 +
 lib/x86/vm.c              |   22 +-
 lib/x86/vm.h              |   10 +
 scripts/runtime.bash      |    2 +-
 x86/Makefile.common       |    2 +
 x86/Makefile.x86_64       |    2 +
 x86/access.c              |    8 +-
 x86/cstart.S              |   48 +-
 x86/cstart64.S            |  125 +-----
 x86/dummy.c               |    8 +
 x86/efi/crt0-efi-x86_64.S |    3 +
 x86/efi/efistart64.S      |   79 ++--
 x86/la57.c                |    2 +-
 x86/msr.c                 |  113 ++++-
 x86/pcid.c                |   28 +-
 x86/pmu.c                 |  116 ++---
 x86/pmu_lbr.c             |   35 +-
 x86/rdpru.c               |    4 +-
 x86/svm.c                 |  219 ++++-----
 x86/svm.h                 |    5 +-
 x86/svm_npt.c             |  380 ++++++++++++++++
 x86/svm_tests.c           | 3365 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------------------
 x86/trampolines.S         |  129 ++++++
 x86/unittests.cfg         |    6 +
 x86/vmexit.c              |   12 +-
 x86/vmx.c                 |  141 ++++--
 x86/vmx.h                 |   31 +-
 x86/vmx_tests.c           |  136 +++---
 x86/xsave.c               |   31 +-
 37 files changed, 3161 insertions(+), 2658 deletions(-)
 create mode 100644 x86/svm_npt.c
 create mode 100644 x86/trampolines.S