linux.git/tools/testing/selftests/kvm/include/aarch64, branch v6.9 Linux kernel source tree Merge tag 'kvm-x86-selftests-6.9' of https://github.com/kvm-x86/linux into HEAD 2024-03-11T14:20:35+00:00 Paolo Bonzini pbonzini@redhat.com 2024-03-11T14:20:35+00:00 4d4c02852abf01059e45a188f16f13f7ec78371c 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. 
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.
KVM: riscv: selftests: Add guest helper to get vcpu id 2024-03-06T15:23:23+00:00 Haibo Xu haibo1.xu@intel.com 2024-01-22T09:58:40+00:00 1e979288c9b50a1eef1c5fa2fa93936012a0ed6f Add guest_get_vcpuid() helper to simplify accessing to per-cpu private data. The sscratch CSR was used to store the vcpu id. Signed-off-by: Haibo Xu <haibo1.xu@intel.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Anup Patel <anup@brainfault.org> 
Add guest_get_vcpuid() helper to simplify accessing to per-cpu
private data. The sscratch CSR was used to store the vcpu id.

Signed-off-by: Haibo Xu <haibo1.xu@intel.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
KVM: selftests: Allow tagging protected memory in guest page tables 2024-02-29T00:39:49+00:00 Peter Gonda pgonda@google.com 2024-02-23T00:42:54+00:00 be1bd4c5394ff7eb6f14aaf8005824ed1946bb82 Add support for tagging and untagging guest physical address, e.g. to allow x86's SEV and TDX guests to embed shared vs. private information in the GPA. SEV (encryption, a.k.a. C-bit) and TDX (shared, a.k.a. S-bit) steal bits from the guest's physical address space that is consumed by the CPU metadata, i.e. effectively aliases the "real" GPA. Implement generic "tagging" so that the shared vs. private metadata can be managed by x86 without bleeding too many details into common code. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Vishal Annapurve <vannapurve@google.com> Cc: Ackerly Tng <ackerleytng@google.com> cc: Andrew Jones <andrew.jones@linux.dev> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Michael Roth <michael.roth@amd.com> Tested-by: Carlos Bilbao <carlos.bilbao@amd.com> Originally-by: Michael Roth <michael.roth@amd.com> Signed-off-by: Peter Gonda <pgonda@google.com> Link: https://lore.kernel.org/r/20240223004258.3104051-8-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> 
Add support for tagging and untagging guest physical address, e.g. to
allow x86's SEV and TDX guests to embed shared vs. private information in
the GPA.  SEV (encryption, a.k.a. C-bit) and TDX (shared, a.k.a. S-bit)
steal bits from the guest's physical address space that is consumed by the
CPU metadata, i.e. effectively aliases the "real" GPA.

Implement generic "tagging" so that the shared vs. private metadata can be
managed by x86 without bleeding too many details into common code.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Vishal Annapurve <vannapurve@google.com>
Cc: Ackerly Tng <ackerleytng@google.com>
cc: Andrew Jones <andrew.jones@linux.dev>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Tested-by: Carlos Bilbao <carlos.bilbao@amd.com>
Originally-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Peter Gonda <pgonda@google.com>
Link: https://lore.kernel.org/r/20240223004258.3104051-8-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
KVM: selftests: arm64: Determine max ipa size per-page size 2023-11-27T15:03:50+00:00 Ryan Roberts ryan.roberts@arm.com 2023-11-27T11:17:36+00:00 72324ac52ddddb168d8008e36d6a617b9b74f6c1 We are about to add 52 bit PA guest modes for 4K and 16K pages when the system supports LPA2. In preparation beef up the logic that parses mmfr0 to also tell us what the maximum supported PA size is for each page size. Max PA size = 0 implies the page size is not supported at all. Reviewed-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Ryan Roberts <ryan.roberts@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20231127111737.1897081-12-ryan.roberts@arm.com 
We are about to add 52 bit PA guest modes for 4K and 16K pages when the
system supports LPA2. In preparation beef up the logic that parses mmfr0
to also tell us what the maximum supported PA size is for each page
size. Max PA size = 0 implies the page size is not supported at all.

Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231127111737.1897081-12-ryan.roberts@arm.com
KVM: selftests: aarch64: vPMU register test for unimplemented counters 2023-10-24T22:59:31+00:00 Reiji Watanabe reijiw@google.com 2023-10-20T21:40:51+00:00 e1cc87206348f36fb78e417b5813f78f672a4aef Add a new test case to the vpmu_counter_access test to check if PMU registers or their bits for unimplemented counters are not accessible or are RAZ, as expected. Signed-off-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20231020214053.2144305-12-rananta@google.com [Oliver: fix issues relating to exception return address] Signed-off-by: Oliver Upton <oliver.upton@linux.dev> 
Add a new test case to the vpmu_counter_access test to check
if PMU registers or their bits for unimplemented counters are not
accessible or are RAZ, as expected.

Signed-off-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231020214053.2144305-12-rananta@google.com
[Oliver: fix issues relating to exception return address]
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
KVM: selftests: Use GUEST_FAIL() in ARM's arch timer helpers 2023-08-02T21:43:17+00:00 Sean Christopherson seanjc@google.com 2023-07-29T00:36:43+00:00 a05c4c2bd8b59e291cc9d68b79d6b45a34bcb54e Use GUEST_FAIL() in ARM's arch timer helpers now that printf-based guest asserts are the default (and only) style of guest asserts, and say goodbye to the GUEST_ASSERT_1() alias. Link: https://lore.kernel.org/r/20230729003643.1053367-35-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> 
Use GUEST_FAIL() in ARM's arch timer helpers now that printf-based
guest asserts are the default (and only) style of guest asserts, and
say goodbye to the GUEST_ASSERT_1() alias.

Link: https://lore.kernel.org/r/20230729003643.1053367-35-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
KVM: selftests: Add #define of expected KVM exit reason for ucall 2023-08-02T21:42:52+00:00 Sean Christopherson seanjc@google.com 2023-07-31T20:30:25+00:00 edb5b700f9f8a21e57aef14cf795fb958cc38628 Define the expected architecture specific exit reason for a successful ucall so that common tests can assert that a ucall occurred without the test needing to implement arch specific code. Suggested-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20230731203026.1192091-3-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> 
Define the expected architecture specific exit reason for a successful
ucall so that common tests can assert that a ucall occurred without the
test needing to implement arch specific code.

Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230731203026.1192091-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
KVM: selftests: Add arch ucall.h and inline simple arch hooks 2023-08-02T21:42:52+00:00 Sean Christopherson seanjc@google.com 2023-07-31T20:30:24+00:00 b35f4c73d389d3b04e5edf3d1fd041ed3070228b Add an architecture specific ucall.h and inline the simple arch hooks, e.g. the init hook for everything except ARM, and the actual "do ucall" hook for everything except x86 (which should be simple, but temporarily isn't due to carrying a workaround). Having a per-arch ucall header will allow adding a #define for the expected KVM exit reason for a ucall that is colocated (for everything except x86) with the ucall itself. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20230731203026.1192091-2-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> 
Add an architecture specific ucall.h and inline the simple arch hooks,
e.g. the init hook for everything except ARM, and the actual "do ucall"
hook for everything except x86 (which should be simple, but temporarily
isn't due to carrying a workaround).

Having a per-arch ucall header will allow adding a #define for the
expected KVM exit reason for a ucall that is colocated (for everything
except x86) with the ucall itself.

Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230731203026.1192091-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
KVM: selftests: Add a helper for SMCCC calls with SMC instruction 2023-04-05T11:07:42+00:00 Oliver Upton oliver.upton@linux.dev 2023-04-04T15:40:49+00:00 fab19915f498b0e76fabd4d78841c99b7b6d7851 Build a helper for doing SMCs in selftests by macro-izing the current HVC implementation and taking the conduit instruction as an argument. Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-13-oliver.upton@linux.dev 
Build a helper for doing SMCs in selftests by macro-izing the current
HVC implementation and taking the conduit instruction as an argument.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230404154050.2270077-13-oliver.upton@linux.dev
KVM: selftests: aarch64: Add aarch64/page_fault_test 2022-11-10T19:10:27+00:00 Ricardo Koller ricarkol@google.com 2022-10-17T19:58:30+00:00 35c5810157124cb71aaa939cd2d5508192714877 Add a new test for stage 2 faults when using different combinations of guest accesses (e.g., write, S1PTW), backing source type (e.g., anon) and types of faults (e.g., read on hugetlbfs with a hole). The next commits will add different handling methods and more faults (e.g., uffd and dirty logging). This first commit starts by adding two sanity checks for all types of accesses: AF setting by the hw, and accessing memslots with holes. Signed-off-by: Ricardo Koller <ricarkol@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20221017195834.2295901-11-ricarkol@google.com 
Add a new test for stage 2 faults when using different combinations of
guest accesses (e.g., write, S1PTW), backing source type (e.g., anon)
and types of faults (e.g., read on hugetlbfs with a hole). The next
commits will add different handling methods and more faults (e.g., uffd
and dirty logging). This first commit starts by adding two sanity checks
for all types of accesses: AF setting by the hw, and accessing memslots
with holes.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221017195834.2295901-11-ricarkol@google.com