[PATCH v2 0/9] KVM: arm64: selftests: Test linked {break,watch}points

[Reiji Watanabe]

This series adds test cases for linked {break,watch}points to the
debug-exceptions test, and expands {break,watch}point tests to
use non-zero {break,watch}points (the current test always uses
{break,watch}point#0).

Patches 1-6 add some helpers or do minor refactoring for
preparation of adding test cases in subsequent patches.
Patches 7-8 add test cases for a linked {break,watch}point.
Patch 9 expands {break,watch}point test cases to use non-zero
{break,watch}points.

The series is based on v6.1-rc1 with the patch [1] applied.

v2:
 - Use FIELD_GET() to extract ID register fields (Oliver, Ricardo)
 - Try to make function/variable names more clear (Oliver, Ricardo)
 - Make the context number more unlikely to happen by mistake (Ricardo)
 - Remove unnecessary GUEST_SYNC for test stage tracking
 - Collect Reviewed-bys from Oliver and Ricardo (thanks!)

v1: https://lore.kernel.org/all/20220825050846.3418868-1-reijiw@google.com/

[1] https://lore.kernel.org/all/20221017195834.2295901-6-ricarkol@google.com/

Reiji Watanabe (9):
  KVM: arm64: selftests: Use FIELD_GET() to extract ID register fields
  KVM: arm64: selftests: Add write_dbg{b,w}{c,v}r helpers in
    debug-exceptions
  KVM: arm64: selftests: Remove the hard-coded {b,w}pn#0 from
    debug-exceptions
  KVM: arm64: selftests: Add helpers to enable debug exceptions
  KVM: arm64: selftests: Stop unnecessary test stage tracking of
    debug-exceptions
  KVM: arm64: selftests: Change debug_version() to take ID_AA64DFR0_EL1
  KVM: arm64: selftests: Add a test case for a linked breakpoint
  KVM: arm64: selftests: Add a test case for a linked watchpoint
  KVM: arm64: selftests: Test with every breakpoint/watchpoint

 .../selftests/kvm/aarch64/aarch32_id_regs.c   |   3 +-
 .../selftests/kvm/aarch64/debug-exceptions.c  | 311 ++++++++++++++----
 .../selftests/kvm/lib/aarch64/processor.c     |   7 +-
 3 files changed, 245 insertions(+), 76 deletions(-)


base-commit: 0ecb0791b2af9bde4389d5ee9ee2a64ddf55ea85
-- 
2.38.0.413.g74048e4d9e-goog