kernel.git/tools/testing/selftests/kvm/lib/aarch64, branch linux-5.13.y

KVM: selftests: Make vm_create_default common

2020-11-15T14:49:19Z

The code is almost 100% the same anyway. Just move it to common and add a few arch-specific macros. Reviewed-by: Peter Xu Reviewed-by: Ben Gardon Signed-off-by: Andrew Jones Message-Id: <20201111122636.73346-5-drjones@redhat.com> Signed-off-by: Paolo Bonzini

selftests: kvm: Add exception handling to selftests

2020-11-08T11:02:15Z

Add the infrastructure needed to enable exception handling in selftests. This allows any of the exception and interrupt vectors to be overridden in the guest. Signed-off-by: Aaron Lewis Reviewed-by: Alexander Graf Message-Id: <20201012194716.3950330-4-aaronlewis@google.com> Signed-off-by: Paolo Bonzini

selftests: kvm: Clear uc so UCALL_NONE is being properly reported

2020-11-08T11:02:14Z

Ensure the out value 'uc' in get_ucall() is properly reporting UCALL_NONE if the call fails. The return value will be correctly reported, however, the out parameter 'uc' will not be. Clear the struct to ensure the correct value is being reported in the out parameter. Signed-off-by: Aaron Lewis Reviewed-by: Andrew Jones Reviewed-by: Alexander Graf Message-Id: <20201012194716.3950330-3-aaronlewis@google.com> Signed-off-by: Paolo Bonzini

selftests: kvm: Uses TEST_FAIL in tests/utilities

2020-03-16T16:59:11Z

Changed all tests and utilities to use TEST_FAIL macro instead of TEST_ASSERT(false,...). Signed-off-by: Wainer dos Santos Moschetta Signed-off-by: Paolo Bonzini

KVM: selftests: Share common API documentation

2020-03-16T16:59:02Z

Move function documentation comment blocks to the header files in order to avoid duplicating them for each architecture. While at it clean up and fix up the comment blocks. Signed-off-by: Andrew Jones Signed-off-by: Paolo Bonzini

KVM: selftests: Rework debug message printing

2020-03-16T16:57:06Z

There were a few problems with the way we output "debug" messages. The first is that we used DEBUG() which is defined when NDEBUG is not defined, but NDEBUG will never be defined for kselftests because it relies too much on assert(). The next is that most of the DEBUG() messages were actually "info" messages, which users may want to turn off if they just want a silent test that either completes or asserts. Finally, a debug message output from a library function, and thus for all tests, was annoying when its information wasn't interesting for a test. Rework these messages so debug messages only output when DEBUG is defined and info messages output unless QUIET is defined. Also name the functions pr_debug and pr_info and make sure that when they're disabled we eat all the inputs. The later avoids unused variable warnings when the variables were only defined for the purpose of printing. Signed-off-by: Andrew Jones Signed-off-by: Paolo Bonzini

KVM: selftests: Add support for vcpu_args_set to aarch64 and s390x

2020-03-16T16:57:04Z

Currently vcpu_args_set is only implemented for x86. This makes writing tests with multiple vCPUs difficult as each guest vCPU must either a.) do the same thing or b.) derive some kind of unique token from it's registers or the architecture. To simplify the process of writing tests with multiple vCPUs for s390 and aarch64, add set args functions for those architectures. Signed-off-by: Ben Gardon [Fixed array index (num => i) and made some style changes.] Signed-off-by: Andrew Jones Signed-off-by: Paolo Bonzini

KVM: selftests: aarch64: Use stream when given

2020-02-24T19:05:19Z

I'm not sure how we ended up using printf instead of fprintf in virt_dump(). Fix it. Signed-off-by: Andrew Jones Signed-off-by: Paolo Bonzini

KVM: selftests: Introduce VM_MODE_PXXV48_4K

2019-09-24T11:37:22Z

The naming VM_MODE_P52V48_4K is explicit but unclear when used on x86_64 machines, because x86_64 machines are having various physical address width rather than some static values. Here's some examples: - Intel Xeon E3-1220: 36 bits - Intel Core i7-8650: 39 bits - AMD EPYC 7251: 48 bits All of them are using 48 bits linear address width but with totally different physical address width (and most of the old machines should be less than 52 bits). Let's create a new guest mode called VM_MODE_PXXV48_4K for current x86_64 tests and make it as the default to replace the old naming of VM_MODE_P52V48_4K because it shows more clearly that the PA width is not really a constant. Meanwhile we also stop assuming all the x86 machines are having 52 bits PA width but instead we fetch the real vm->pa_bits from CPUID 0x80000008 during runtime. We currently make this exclusively used by x86_64 but no other arch. As a slight touch up, moving DEBUG macro from dirty_log_test.c to kvm_util.h so lib can use it too. Signed-off-by: Peter Xu Signed-off-by: Paolo Bonzini

KVM: selftests: Split ucall.c into architecture specific files

2019-08-02T13:44:16Z

The way we exit from a guest to userspace is very specific to the architecture: On x86, we use PIO, on aarch64 we are using MMIO and on s390x we're going to use an instruction instead. The possibility to select a type via the ucall_type_t enum is currently also completely unused, so the code in ucall.c currently looks more complex than required. Let's split this up into architecture specific ucall.c files instead, so we can get rid of the #ifdefs and the unnecessary ucall_type_t handling. Reviewed-by: Andrew Jones Signed-off-by: Thomas Huth Acked-by: Paolo Bonzini Link: https://lore.kernel.org/r/20190731151525.17156-2-thuth@redhat.com Signed-off-by: Christian Borntraeger