linux-dev/tools/testing/selftests/kvm/aarch64/debug-exceptions.c, branch linus/master

selftests: KVM: Test OS lock behavior

2022-02-08T14:23:41Z

KVM now correctly handles the OS Lock for its guests. When set, KVM blocks all debug exceptions originating from the guest. Add test cases to the debug-exceptions test to assert that software breakpoint, hardware breakpoint, watchpoint, and single-step exceptions are in fact blocked. Signed-off-by: Oliver Upton Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220203174159.2887882-7-oupton@google.com

KVM: arm64: selftests: Introduce ARM64_SYS_KVM_REG

2021-10-17T10:17:20Z

With the inclusion of sysreg.h, that brings in system register encodings, it would be redundant to re-define register encodings again in processor.h to use it with ARM64_SYS_REG for the KVM functions such as set_reg() or get_reg(). Hence, add helper macro, ARM64_SYS_KVM_REG, that converts SYS_* definitions in sysreg.h into ARM64_SYS_REG definitions. Also replace all the users of ARM64_SYS_REG, relying on the encodings created in processor.h, with ARM64_SYS_KVM_REG and remove the definitions. Signed-off-by: Raghavendra Rao Ananta Reviewed-by: Ricardo Koller Reviewed-by: Andrew Jones Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20211007233439.1826892-5-rananta@google.com

tools: arm64: Import sysreg.h

2021-10-17T10:15:51Z

Bring-in the kernel's arch/arm64/include/asm/sysreg.h into tools/ for arm64 to make use of all the standard register definitions in consistence with the kernel. Make use of the register read/write definitions from sysreg.h, instead of the existing definitions. A syntax correction is needed for the files that use write_sysreg() to make it compliant with the new (kernel's) syntax. Reviewed-by: Andrew Jones Reviewed-by: Oliver Upton Signed-off-by: Raghavendra Rao Ananta [maz: squashed two commits in order to keep the series bisectable] Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20211007233439.1826892-3-rananta@google.com Link: https://lore.kernel.org/r/20211007233439.1826892-4-rananta@google.com

KVM: selftests: Add aarch64/debug-exceptions test

2021-06-14T08:06:23Z

Covers fundamental tests for debug exceptions. The guest installs and handle its debug exceptions itself, without KVM_SET_GUEST_DEBUG. Signed-off-by: Ricardo Koller Reviewed-by: Andrew Jones Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210611011020.3420067-7-ricarkol@google.com