linux-kernel - [V3 PATCH 0/4] Minor improvements to the selftest setup logic

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Message-ID: <20221013121319.994170-1-vannapurve@google.com>
Date:   Thu, 13 Oct 2022 12:13:15 +0000
From:   Vishal Annapurve <vannapurve@...gle.com>
To:     x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Cc:     pbonzini@...hat.com, shuah@...nel.org, bgardon@...gle.com,
        seanjc@...gle.com, oupton@...gle.com, peterx@...hat.com,
        vkuznets@...hat.com, dmatlack@...gle.com,
        Vishal Annapurve <vannapurve@...gle.com>
Subject: [V3 PATCH 0/4] Minor improvements to the selftest setup logic

This series is posted in context of the discussion at:
https://lore.kernel.org/lkml/Ywa9T+jKUpaHLu%2Fl@google.com/

Changes in v3:
* Original series is split into two and this v3 version contains the
  improvements to selftest and VM setup.
  * Planning to upload the second series to execute hypercall
    instruction according to cpu type separately.
* Addressed comments from David and Sean.

link to v2:
https://lore.kernel.org/all/20220915000448.1674802-1-vannapurve@google.com/

Changes in v2:
* Addressed comments from Andrew and David
  * Common function with constructor attribute used to setup initial state
  * Changes are split in more logical granules as per feedback

Major changes:
1) Move common startup logic to a single function in kvm_util.c
2) Introduce following APIs:
	kvm_selftest_arch_init: to perform arch specific common startup.
	kvm_arch_vm_post_create: to update the guest memory state to convey
		common information to guests.
3) For x86, capture cpu type at startup and pass on the cpu type to
guest after guest elf is loaded.

Vishal Annapurve (4):
  KVM: selftests: move common startup logic to kvm_util.c
  KVM: selftests: Add arch specific initialization
  KVM: selftests: Add arch specific post vm creation hook
  KVM: selftests: x86: Precompute the cpu type

 .../selftests/kvm/aarch64/arch_timer.c        |  3 ---
 .../selftests/kvm/aarch64/hypercalls.c        |  2 --
 .../testing/selftests/kvm/aarch64/vgic_irq.c  |  3 ---
 .../selftests/kvm/include/kvm_util_base.h     |  9 ++++++++
 .../selftests/kvm/lib/aarch64/processor.c     | 18 ++++++++--------
 tools/testing/selftests/kvm/lib/kvm_util.c    | 21 ++++++++++++++++---
 .../selftests/kvm/lib/x86_64/processor.c      | 16 ++++++++++++--
 .../testing/selftests/kvm/memslot_perf_test.c |  3 ---
 tools/testing/selftests/kvm/rseq_test.c       |  3 ---
 tools/testing/selftests/kvm/s390x/memop.c     |  2 --
 tools/testing/selftests/kvm/s390x/resets.c    |  2 --
 .../selftests/kvm/s390x/sync_regs_test.c      |  3 ---
 .../selftests/kvm/set_memory_region_test.c    |  3 ---
 .../kvm/x86_64/cr4_cpuid_sync_test.c          |  3 ---
 .../kvm/x86_64/emulator_error_test.c          |  3 ---
 .../selftests/kvm/x86_64/hyperv_cpuid.c       |  3 ---
 .../selftests/kvm/x86_64/platform_info_test.c |  3 ---
 .../kvm/x86_64/pmu_event_filter_test.c        |  3 ---
 .../selftests/kvm/x86_64/set_sregs_test.c     |  3 ---
 .../kvm/x86_64/svm_nested_soft_inject_test.c  |  3 ---
 .../selftests/kvm/x86_64/sync_regs_test.c     |  3 ---
 .../selftests/kvm/x86_64/userspace_io_test.c  |  3 ---
 .../kvm/x86_64/userspace_msr_exit_test.c      |  3 ---
 23 files changed, 50 insertions(+), 68 deletions(-)

-- 
2.38.0.rc1.362.ged0d419d3c-goog