- Add macros to reduce the amount of boilerplate code needed to write "simple"
selftests, and to utilize selftest TAP infrastructure, which is especially
beneficial for KVM selftests with multiple testcases.
- Add basic smoke tests for SEV and SEV-ES, along with a pile of library
support for handling private/encrypted/protected memory.
- Fix benign bugs where tests neglect to close() guest_memfd files.
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEKTobbabEP7vbhhN9OlYIJqCjN/0FAmXrUT8ACgkQOlYIJqCj
N/0azBAAkjVan7STJkDkyoSJAfXbGLFtt1SrSi7886siW+IVIwINyHAdqFbJG8h/
OXSfkQ6Mu4GY27qmuPqAbfVksb6ccAd0SdEDNixtErs2qU4BJvAiNfxxJlfx9b0f
IGhN5mNNcxC4LosEIXZJRI9QPfXsxWkiXvShJ7qQmGXx1/oZGMCTyL6L6Bpqz4PV
PDUAgeQDME1G0uw2AbN5pl9yS1Macl1R5Z0FjXs7pHu/Qy05fn3Afb1UsC4LfcW6
BTUgD4NYamaBOjzgiOzjBZCAL6ee3ZUx+Wy0ohfM2Ewm/MSArPt3SRuIck07bmUu
FRuAKvb0q4Mc6uL9mvxP5t5aowP/2IIb1qR1DakXbXqSIVS4+yQzRhJqaVKdIRuD
KXnxUFXqZ0QOLTgoWRK8fRVwMJWT0kFskNaAmDhcIoWVPxlvGjlXLSYncLIYTeic
qC4Da02p+DSatw+GeONh3Eh2LUfyHuET5Wjb6GVsPr12IAx4KREUWJLShjHtF4FZ
cXncKS6DCT3X5EjoruXgxYYKNoYG0S4ied8G0xE8El/i/O8X8IyeJu6sisdYZF/G
SYpdooF+jnJeMq5eivL+WlaThOVcMpPeNp9fmU3g/TUTn/fIGpBtMf+goZG5jFLz
pzLucXYehpsx28duyEC5SckdVJQ36J5EwZ/ybB35hh6NadMm7LM=
=x6+F
-----END PGP SIGNATURE-----
Merge tag 'kvm-x86-selftests-6.9' of https://github.com/kvm-x86/linux into HEAD
KVM selftests changes for 6.9:
- Add macros to reduce the amount of boilerplate code needed to write "simple"
selftests, and to utilize selftest TAP infrastructure, which is especially
beneficial for KVM selftests with multiple testcases.
- Add basic smoke tests for SEV and SEV-ES, along with a pile of library
support for handling private/encrypted/protected memory.
- Fix benign bugs where tests neglect to close() guest_memfd files.
Extract the code to set a vCPU's entry point out of vm_arch_vcpu_add() and
into a new API, vcpu_arch_set_entry_point(). Providing a separate API
will allow creating a KVM selftests hardness that can handle tests that
use different entry points for sub-tests, whereas *requiring* the entry
point to be specified at vCPU creation makes it difficult to create a
generic harness, e.g. the boilerplate setup/teardown can't easily create
and destroy the VM and vCPUs.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/20240208204844.119326-4-thuth@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
TEST_* functions append their own newline. Remove newlines from
TEST_* callsites to avoid extra newlines in output.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20231206170241.82801-11-ajones@ventanamicro.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Now that kvm_vm allows specifying different memslots for code, page tables,
and data, use the appropriate memslot when making allocations in
common/libraty code. Change them accordingly:
- code (allocated by lib/elf) use the CODE memslot
- stacks, exception tables, and other core data pages (like the TSS in x86)
use the DATA memslot
- page tables and the PGD use the PT memslot
- test data (anything allocated with vm_vaddr_alloc()) uses the TEST_DATA
memslot
No functional change intended. All allocators keep using memslot #0.
Cc: Sean Christopherson <seanjc@google.com>
Cc: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221017195834.2295901-10-ricarkol@google.com
Take a vCPU directly instead of a VM+vcpu pair in all vCPU-scoped helpers
and ioctls.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Rename vm_vcpu_add() to __vm_vcpu_add(), and vm_vcpu_add_default() to
vm_vcpu_add() to show the relationship between the newly minted
vm_vcpu_add() and __vm_vcpu_add().
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Return the created 'struct kvm_vcpu' object from vm_vcpu_add_default(),
which cleans up a few tests and will eventually allow removing vcpu_get()
entirely.
Opportunistically rename @vcpuid to @vcpu_id to follow preferred kernel
style.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add "arch" into the name of utility functions that are declared in common
code, but (surprise!) have arch-specific implementations. Shuffle code
around so that all such helpers' declarations are bundled together.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Rename 'struct vcpu' to 'struct kvm_vcpu' to align with 'struct kvm_vm'
in the selftest, and to give readers a hint that the struct is specific
to KVM.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Rename the "state" field of 'struct vcpu' to "run". KVM calls it "run",
the struct name is "kvm_run", etc...
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fold kvm_util_internal.h into kvm_util_base.h, i.e. make all KVM utility
stuff "public". Hiding struct implementations from tests has been a
massive failure, as it has led to pointless and poorly named wrappers,
unnecessarily opaque code, etc...
Not to mention that the approach was a complete failure as evidenced by
the non-zero number of tests that were including kvm_util_internal.h.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add vcpu_get() to wrap vcpu_find() and deduplicate a pile of code that
asserts the requested vCPU exists.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add a helper to allocate a page for use in constructing the guest's page
tables. All architectures have identical address and memslot
requirements (which appear to be arbitrary anyways).
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622200529.3650424-15-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop the memslot param from virt_pg_map() and virt_map() and shove the
hardcoded '0' down to the vm_phy_page_alloc() calls.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622200529.3650424-13-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop the memslot param(s) from vm_vaddr_alloc() now that all callers
directly specific '0' as the memslot. Drop the memslot param from
virt_pgd_alloc() as well since vm_vaddr_alloc() is its only user.
I.e. shove the hardcoded '0' down to the vm_phy_pages_alloc() calls.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The code is almost 100% the same anyway. Just move it to common
and add a few arch-specific macros.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20201111122636.73346-5-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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 <aaronlewis@google.com>
Reviewed-by: Alexander Graf <graf@amazon.com>
Message-Id: <20201012194716.3950330-4-aaronlewis@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replace the KVM selftests' homebrewed linked lists for vCPUs and memory
regions with the kernel's 'struct list_head'.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20200410231707.7128-3-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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 <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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 <bgardon@google.com>
[Fixed array index (num => i) and made some style changes.]
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is the initial implementation for KVM selftests on s390.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=STwX
-----END PGP SIGNATURE-----
Merge tag 'kvm-s390-next-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: s390: add kselftests
This is the initial implementation for KVM selftests on s390.
Code that takes care of basic CPU setup, page table walking, etc.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190523164309.13345-7-thuth@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
