KVM Archive mirror
 help / color / mirror / Atom feed
From: Sean Christopherson <seanjc@google.com>
To: Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>,
	 Paolo Bonzini <pbonzini@redhat.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	 Janosch Frank <frankja@linux.ibm.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>,
	 Sean Christopherson <seanjc@google.com>,
	Anup Patel <anup@brainfault.org>,
	 Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	 Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
	 kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
	 linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	 Ackerley Tng <ackerleytng@google.com>
Subject: [PATCH 00/18] KVM: selftests: Clean up x86's DT initialization
Date: Thu, 14 Mar 2024 16:26:19 -0700	[thread overview]
Message-ID: <20240314232637.2538648-1-seanjc@google.com> (raw)

The vast majority of this series is x86 specific, and aims to clean up the
core library's handling of descriptor tables and segments.  Currently, the
library (a) waits until vCPUs are created to allocate per-VM assets, and
(b) forces tests to opt-in to allocate the structures needed to handler
exceptions, which has result in some rather odd tests, and makes it
unnecessarily difficult to debug unexpected exceptions.

By the end of this series, the descriptor tables, segments, and exception
handlers are allocated and installed when non-barebones VMs are created.

Patch 1 is a selftests-tree-wide change to drop kvm_util_base.h.  The
existence of that file has baffled (and annoyed) me for quite a long time.
After rereading its initial changelog multiple times, I realized that the
_only_ reason it exists is so that files don't need to manually #include
ucall_common.h.

Patch 1 will obviously create conflicts all over the place, though with
the help of meld, I've found them all trivially easy to resolve.  If no
objects to the removal of kvm_util_base.h, I will try to bribe Paolo into
grabbing it early in the 6.10 cycle so that everyone can bring it into
the arch trees.

Ackerley Tng (1):
  KVM: selftests: Fix off-by-one initialization of GDT limit

Sean Christopherson (17):
  Revert "kvm: selftests: move base kvm_util.h declarations to
    kvm_util_base.h"
  KVM: sefltests: Add kvm_util_types.h to hold common types, e.g.
    vm_vaddr_t
  KVM: selftests: Move GDT, IDT, and TSS fields to x86's kvm_vm_arch
  KVM: selftests: Move platform_info_test's main assert into guest code
  KVM: selftests: Rework platform_info_test to actually verify #GP
  KVM: selftests: Explicitly clobber the IDT in the "delete memslot"
    testcase
  KVM: selftests: Move x86's descriptor table helpers "up" in
    processor.c
  KVM: selftests: Rename x86's vcpu_setup() to vcpu_init_sregs()
  KVM: selftests: Init IDT and exception handlers for all VMs/vCPUs on
    x86
  KVM: selftests: Map x86's exception_handlers at VM creation, not vCPU
    setup
  KVM: selftests: Allocate x86's GDT during VM creation
  KVM: selftests: Drop superfluous switch() on vm->mode in
    vcpu_init_sregs()
  KVM: selftests: Fold x86's descriptor tables helpers into
    vcpu_init_sregs()
  KVM: selftests: Allocate x86's TSS at VM creation
  KVM: selftests: Add macro for TSS selector, rename up code/data macros
  KVM: selftests: Init x86's segments during VM creation
  KVM: selftests: Drop @selector from segment helpers

 .../selftests/kvm/aarch64/arch_timer.c        |    1 +
 tools/testing/selftests/kvm/arch_timer.c      |    1 +
 .../selftests/kvm/demand_paging_test.c        |    1 +
 .../selftests/kvm/dirty_log_perf_test.c       |    1 +
 tools/testing/selftests/kvm/dirty_log_test.c  |    1 +
 .../testing/selftests/kvm/guest_memfd_test.c  |    2 +-
 .../testing/selftests/kvm/guest_print_test.c  |    1 +
 .../selftests/kvm/include/aarch64/processor.h |    2 +
 .../selftests/kvm/include/aarch64/ucall.h     |    2 +-
 .../testing/selftests/kvm/include/kvm_util.h  | 1111 +++++++++++++++-
 .../selftests/kvm/include/kvm_util_base.h     | 1135 -----------------
 .../selftests/kvm/include/kvm_util_types.h    |   20 +
 .../selftests/kvm/include/s390x/ucall.h       |    2 +-
 .../kvm/include/x86_64/kvm_util_arch.h        |    6 +
 .../selftests/kvm/include/x86_64/processor.h  |    5 +-
 .../selftests/kvm/include/x86_64/ucall.h      |    2 +-
 .../selftests/kvm/kvm_page_table_test.c       |    1 +
 .../selftests/kvm/lib/aarch64/processor.c     |    2 +
 tools/testing/selftests/kvm/lib/kvm_util.c    |    1 +
 tools/testing/selftests/kvm/lib/memstress.c   |    1 +
 .../selftests/kvm/lib/riscv/processor.c       |    1 +
 .../testing/selftests/kvm/lib/ucall_common.c  |    5 +-
 .../selftests/kvm/lib/x86_64/processor.c      |  305 ++---
 .../testing/selftests/kvm/riscv/arch_timer.c  |    1 +
 tools/testing/selftests/kvm/rseq_test.c       |    1 +
 tools/testing/selftests/kvm/s390x/cmma_test.c |    1 +
 tools/testing/selftests/kvm/s390x/memop.c     |    1 +
 tools/testing/selftests/kvm/s390x/tprot.c     |    1 +
 .../selftests/kvm/set_memory_region_test.c    |   12 +
 tools/testing/selftests/kvm/steal_time.c      |    1 +
 tools/testing/selftests/kvm/x86_64/amx_test.c |    2 -
 .../x86_64/dirty_log_page_splitting_test.c    |    1 +
 .../x86_64/exit_on_emulation_failure_test.c   |    2 +-
 .../selftests/kvm/x86_64/fix_hypercall_test.c |    2 -
 .../selftests/kvm/x86_64/hyperv_evmcs.c       |    2 -
 .../selftests/kvm/x86_64/hyperv_features.c    |    6 -
 .../testing/selftests/kvm/x86_64/hyperv_ipi.c |    3 -
 .../selftests/kvm/x86_64/kvm_pv_test.c        |    3 -
 .../selftests/kvm/x86_64/monitor_mwait_test.c |    3 -
 .../selftests/kvm/x86_64/platform_info_test.c |   59 +-
 .../selftests/kvm/x86_64/pmu_counters_test.c  |    3 -
 .../kvm/x86_64/pmu_event_filter_test.c        |    6 -
 .../smaller_maxphyaddr_emulation_test.c       |    3 -
 .../selftests/kvm/x86_64/svm_int_ctl_test.c   |    3 -
 .../kvm/x86_64/svm_nested_shutdown_test.c     |    5 +-
 .../kvm/x86_64/svm_nested_soft_inject_test.c  |    5 +-
 .../kvm/x86_64/ucna_injection_test.c          |    5 -
 .../kvm/x86_64/userspace_msr_exit_test.c      |    3 -
 .../vmx_exception_with_invalid_guest_state.c  |    3 -
 .../selftests/kvm/x86_64/vmx_pmu_caps_test.c  |    3 -
 .../selftests/kvm/x86_64/xapic_ipi_test.c     |    2 -
 .../selftests/kvm/x86_64/xcr0_cpuid_test.c    |    3 -
 .../selftests/kvm/x86_64/xen_shinfo_test.c    |    2 -
 53 files changed, 1335 insertions(+), 1421 deletions(-)
 delete mode 100644 tools/testing/selftests/kvm/include/kvm_util_base.h
 create mode 100644 tools/testing/selftests/kvm/include/kvm_util_types.h


base-commit: e9a2bba476c8332ed547fce485c158d03b0b9659
-- 
2.44.0.291.gc1ea87d7ee-goog


             reply	other threads:[~2024-03-14 23:26 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-14 23:26 Sean Christopherson [this message]
2024-03-14 23:26 ` [PATCH 01/18] Revert "kvm: selftests: move base kvm_util.h declarations to kvm_util_base.h" Sean Christopherson
2024-03-28  2:49   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 02/18] KVM: sefltests: Add kvm_util_types.h to hold common types, e.g. vm_vaddr_t Sean Christopherson
2024-03-28  2:48   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 03/18] KVM: selftests: Move GDT, IDT, and TSS fields to x86's kvm_vm_arch Sean Christopherson
2024-03-28  2:48   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 04/18] KVM: selftests: Fix off-by-one initialization of GDT limit Sean Christopherson
2024-03-14 23:26 ` [PATCH 05/18] KVM: selftests: Move platform_info_test's main assert into guest code Sean Christopherson
2024-03-14 23:26 ` [PATCH 06/18] KVM: selftests: Rework platform_info_test to actually verify #GP Sean Christopherson
2024-03-14 23:26 ` [PATCH 07/18] KVM: selftests: Explicitly clobber the IDT in the "delete memslot" testcase Sean Christopherson
2024-03-14 23:26 ` [PATCH 08/18] KVM: selftests: Move x86's descriptor table helpers "up" in processor.c Sean Christopherson
2024-03-28  2:47   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 09/18] KVM: selftests: Rename x86's vcpu_setup() to vcpu_init_sregs() Sean Christopherson
2024-03-28  2:47   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 10/18] KVM: selftests: Init IDT and exception handlers for all VMs/vCPUs on x86 Sean Christopherson
2024-03-28  2:46   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 11/18] KVM: selftests: Map x86's exception_handlers at VM creation, not vCPU setup Sean Christopherson
2024-03-28  2:35   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 12/18] KVM: selftests: Allocate x86's GDT during VM creation Sean Christopherson
2024-03-28  2:33   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 13/18] KVM: selftests: Drop superfluous switch() on vm->mode in vcpu_init_sregs() Sean Christopherson
2024-03-28  2:28   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 14/18] KVM: selftests: Fold x86's descriptor tables helpers into vcpu_init_sregs() Sean Christopherson
2024-03-28  2:50   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 15/18] KVM: selftests: Allocate x86's TSS at VM creation Sean Christopherson
2024-03-28  2:50   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 16/18] KVM: selftests: Add macro for TSS selector, rename up code/data macros Sean Christopherson
2024-03-28  2:52   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 17/18] KVM: selftests: Init x86's segments during VM creation Sean Christopherson
2024-03-28  2:51   ` Ackerley Tng
2024-03-14 23:26 ` [PATCH 18/18] KVM: selftests: Drop @selector from segment helpers Sean Christopherson
2024-03-28  2:51   ` Ackerley Tng
2024-04-29 20:45 ` [PATCH 00/18] KVM: selftests: Clean up x86's DT initialization Sean Christopherson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240314232637.2538648-1-seanjc@google.com \
    --to=seanjc@google.com \
    --cc=ackerleytng@google.com \
    --cc=anup@brainfault.org \
    --cc=aou@eecs.berkeley.edu \
    --cc=borntraeger@linux.ibm.com \
    --cc=frankja@linux.ibm.com \
    --cc=imbrenda@linux.ibm.com \
    --cc=kvm-riscv@lists.infradead.org \
    --cc=kvm@vger.kernel.org \
    --cc=kvmarm@lists.linux.dev \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=maz@kernel.org \
    --cc=oliver.upton@linux.dev \
    --cc=palmer@dabbelt.com \
    --cc=paul.walmsley@sifive.com \
    --cc=pbonzini@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).