Respin of George's patch series enabling UBSAN for hyp/nVHE code.
Modification in v2:
* CONFIG_KVM_ARM_DEBUG_BUFFER removed; __kvm_check_ubsan_buffer is
called directly instead of via __kvm_arm_check_debug_buffer.
* Bugfixing commits removed as these are already upstream.
* Some code brought up to date, i.e. moved from entry.S to host.S.
* Merged "Add support for creating and checking a buffer" and
"Add a buffer that can pass UBSan data from hyp/nVHE" into
one commit as these changes don't work without each other.
George Popescu (9):
KVM: arm64: Enable UBSan instrumentation in nVHE hyp code
KVM: arm64: Add a buffer that can pass UBSan data from hyp/nVHE to
kernel
KVM: arm64: Enable UBSAN_BOUNDS for the both the kernel and hyp/nVHE
KVM: arm64: Enable UBsan check for unreachable code inside hyp/nVHE
code
KVM: arm64: Enable shift out of bounds undefined behaviour check for
hyp/nVHE
KVM: arm64: __ubsan_handle_load_invalid_value EL2 implementation.
KVM: arm64: Detect type mismatch undefined behaviour from hyp/nVHE
code
KVM: arm64: Detect arithmetic overflow is inside hyp/nVHE.
KVM: arm64: Add UBSan tests for PKVM.
arch/arm64/include/asm/assembler.h | 10 ++
arch/arm64/include/asm/kvm_debug_buffer.h | 34 ++++
arch/arm64/include/asm/kvm_host.h | 8 +-
arch/arm64/include/asm/kvm_ubsan.h | 50 ++++++
arch/arm64/kvm/Makefile | 2 +
arch/arm64/kvm/arm.c | 9 ++
arch/arm64/kvm/hyp/include/hyp/test_ubsan.h | 112 +++++++++++++
arch/arm64/kvm/hyp/nvhe/Makefile | 3 +-
arch/arm64/kvm/hyp/nvhe/host.S | 4 +
arch/arm64/kvm/hyp/nvhe/hyp-main.c | 3 +
arch/arm64/kvm/hyp/nvhe/ubsan.c | 164 ++++++++++++++++++++
arch/arm64/kvm/kvm_ubsan_buffer.c | 81 ++++++++++
12 files changed, 478 insertions(+), 2 deletions(-)
create mode 100644 arch/arm64/include/asm/kvm_debug_buffer.h
create mode 100644 arch/arm64/include/asm/kvm_ubsan.h
create mode 100644 arch/arm64/kvm/hyp/include/hyp/test_ubsan.h
create mode 100644 arch/arm64/kvm/hyp/nvhe/ubsan.c
create mode 100644 arch/arm64/kvm/kvm_ubsan_buffer.c
--
2.30.0.284.gd98b1dd5eaa7-goog
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