kernel.git/tools/testing/selftests/kvm/include/kvm_util.h, branch linux-5.7.y

KVM: selftests: Add KVM_SET_GUEST_DEBUG test

2020-05-07T10:13:42Z

Covers fundamental tests for KVM_SET_GUEST_DEBUG. It is very close to the debug test in kvm-unit-test, but doing it from outside the guest. Signed-off-by: Peter Xu Message-Id: <20200505205000.188252-4-peterx@redhat.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Introduce steal-time test

2020-03-16T16:59:07Z

The steal-time test confirms what is reported to the guest as stolen time is consistent with the run_delay reported for the VCPU thread on the host. Both x86_64 and AArch64 have the concept of steal/stolen time so this test is introduced for both architectures. While adding the test we ensure .gitignore has all tests listed (it was missing s390x/resets) and that the Makefile has all tests listed in alphabetical order (not really necessary, but it almost was already...). We also extend the common API with a new num-guest- pages call and a new timespec call. Signed-off-by: Andrew Jones Signed-off-by: Paolo Bonzini

KVM: selftests: virt_map should take npages, not size

2020-03-16T16:59:06Z

Also correct the comment and prototype for vm_create_default(), as it takes a number of pages, not a size. Signed-off-by: Andrew Jones 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: s390x: Provide additional num-guest-pages adjustment

2020-03-16T16:58:57Z

s390 requires 1M aligned guest sizes. Embedding the rounding in vm_adjust_num_guest_pages() allows us to remove it from a few other places. Signed-off-by: Andrew Jones Signed-off-by: Paolo Bonzini

KVM: selftests: Add test for KVM_SET_USER_MEMORY_REGION

2020-03-16T16:57:27Z

Add a KVM selftest to test moving the base gfn of a userspace memory region. Although the basic concept of moving memory regions is not x86 specific, the assumptions regarding large pages and MMIO shenanigans used to verify the correctness make this x86_64 only for the time being. Reviewed-by: Peter Xu Signed-off-by: Sean Christopherson 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: Introduce num-pages conversion utilities

2020-02-24T19:05:23Z

Guests and hosts don't have to have the same page size. This means calculations are necessary when selecting the number of guest pages to allocate in order to ensure the number is compatible with the host. Provide utilities to help with those calculations and apply them where appropriate. We also revert commit bffed38d4fb5 ("kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size") and then use vm_adjust_num_guest_pages() there instead. Signed-off-by: Andrew Jones Signed-off-by: Paolo Bonzini

selftests: KVM: Add fpu and one reg set/get library functions

2020-01-31T12:17:21Z

Add library access to more registers. Signed-off-by: Janosch Frank Reviewed-by: Thomas Huth Reviewed-by: Cornelia Huck Link: https://lore.kernel.org/r/20200131100205.74720-5-frankja@linux.ibm.com Signed-off-by: Christian Borntraeger

KVM: selftests: Remove duplicate guest mode handling

2019-09-24T11:37:24Z

Remove the duplication code in run_test() of dirty_log_test because after some reordering of functions now we can directly use the outcome of vm_create(). Meanwhile, with the new VM_MODE_PXXV48_4K, we can safely revert b442324b58 too where we stick the x86_64 PA width to 39 bits for dirty_log_test. Reviewed-by: Andrew Jones Signed-off-by: Peter Xu Signed-off-by: Paolo Bonzini