summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/kvm/include
AgeCommit message (Collapse)Author
2021-11-11selftest: KVM: Add open sev dev helperPeter Gonda
Refactors out open path support from open_kvm_dev_path_or_exit() and adds new helper for SEV device path. Signed-off-by: Peter Gonda <pgonda@google.com> Suggested-by: Sean Christopherson <seanjc@google.com> Cc: Marc Orr <marcorr@google.com> Cc: Sean Christopherson <seanjc@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Message-Id: <20211021174303.385706-5-pgonda@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-10-31Merge tag 'kvmarm-5.16' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for Linux 5.16 - More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. - Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated - Fixes for the vgic placement in the IPA space, together with a bunch of selftests - More memcg accounting of the memory allocated on behalf of a guest - Timer and vgic selftests - Workarounds for the Apple M1 broken vgic implementation - KConfig cleanups - New kvmarm.mode=none option, for those who really dislike us
2021-10-18selftests: KVM: Add helpers for vCPU device attributesOliver Upton
vCPU file descriptors are abstracted away from test code in KVM selftests, meaning that tests cannot directly access a vCPU's device attributes. Add helpers that tests can use to get at vCPU device attributes. Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Oliver Upton <oupton@google.com> Message-Id: <20210916181555.973085-5-oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-10-18selftests: KVM: Add test for KVM_{GET,SET}_CLOCKOliver Upton
Add a selftest for the new KVM clock UAPI that was introduced. Ensure that the KVM clock is consistent between userspace and the guest, and that the difference in realtime will only ever cause the KVM clock to advance forward. Cc: Andrew Jones <drjones@redhat.com> Signed-off-by: Oliver Upton <oupton@google.com> Message-Id: <20210916181555.973085-3-oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-10-17KVM: arm64: selftests: Add host support for vGICRaghavendra Rao Ananta
Implement a simple library to perform vGIC-v3 setup from a host point of view. This includes creating a vGIC device, setting up distributor and redistributor attributes, and mapping the guest physical addresses. The definition of REDIST_REGION_ATTR_ADDR is taken from aarch64/vgic_init test. Hence, replace the definition by including vgic.h in the test file. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Ricardo Koller <ricarkol@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-14-rananta@google.com
2021-10-17KVM: arm64: selftests: Add basic GICv3 supportRaghavendra Rao Ananta
Add basic support for ARM Generic Interrupt Controller v3. The support provides guests to setup interrupts. The work is inspired from kvm-unit-tests and the kernel's GIC driver (drivers/irqchip/irq-gic-v3.c). Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Ricardo Koller <ricarkol@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-13-rananta@google.com
2021-10-17KVM: arm64: selftests: Add light-weight spinlock supportRaghavendra Rao Ananta
Add a simpler version of spinlock support for ARM64 for the guests to use. The implementation is loosely based on the spinlock implementation in kvm-unit-tests. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-12-rananta@google.com
2021-10-17KVM: arm64: selftests: Add guest support to get the vcpuidRaghavendra Rao Ananta
At times, such as when in the interrupt handler, the guest wants to get the vcpuid that it's running on to pull the per-cpu private data. As a result, introduce guest_get_vcpuid() that returns the vcpuid of the calling vcpu. The interface is architecture independent, but defined only for arm64 as of now. Suggested-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Ricardo Koller <ricarkol@google.com> Reviewed-by: Reiji Watanabe <reijiw@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-11-rananta@google.com
2021-10-17KVM: arm64: selftests: Maintain consistency for vcpuid typeRaghavendra Rao Ananta
The prototype of aarch64_vcpu_setup() accepts vcpuid as 'int', while the rest of the aarch64 (and struct vcpu) carries it as 'uint32_t'. Hence, change the prototype to make it consistent throughout the board. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-10-rananta@google.com
2021-10-17KVM: arm64: selftests: Add support to disable and enable local IRQsRaghavendra Rao Ananta
Add functions local_irq_enable() and local_irq_disable() to enable and disable the IRQs from the guest, respectively. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-9-rananta@google.com
2021-10-17KVM: arm64: selftests: Add basic support to generate delaysRaghavendra Rao Ananta
Add udelay() support to generate a delay in the guest. The routines are derived and simplified from kernel's arch/arm64/lib/delay.c. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Oliver Upton <oupton@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-8-rananta@google.com
2021-10-17KVM: arm64: selftests: Add basic support for arch_timersRaghavendra Rao Ananta
Add a minimalistic library support to access the virtual timers, that can be used for simple timing functionalities, such as introducing delays in the guest. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-7-rananta@google.com
2021-10-17KVM: arm64: selftests: Add support for cpu_relaxRaghavendra Rao Ananta
Implement the guest helper routine, cpu_relax(), to yield the processor to other tasks. The function was derived from arch/arm64/include/asm/vdso/processor.h. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-6-rananta@google.com
2021-10-17KVM: arm64: selftests: Introduce ARM64_SYS_KVM_REGRaghavendra Rao Ananta
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 <rananta@google.com> Reviewed-by: Ricardo Koller <ricarkol@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-5-rananta@google.com
2021-10-17tools: arm64: Import sysreg.hRaghavendra Rao Ananta
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 <drjones@redhat.com> Reviewed-by: Oliver Upton <oupton@google.com> Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> [maz: squashed two commits in order to keep the series bisectable] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-3-rananta@google.com Link: https://lore.kernel.org/r/20211007233439.1826892-4-rananta@google.com
2021-10-17KVM: arm64: selftests: Add MMIO readl/writel supportRaghavendra Rao Ananta
Define the readl() and writel() functions for the guests to access (4-byte) the MMIO region. The routines, and their dependents, are inspired from the kernel's arch/arm64/include/asm/io.h and arch/arm64/include/asm/barrier.h. Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Reviewed-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-2-rananta@google.com
2021-10-01Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull more kvm fixes from Paolo Bonzini: "Small x86 fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: selftests: Ensure all migrations are performed when test is affined KVM: x86: Swap order of CPUID entry "index" vs. "significant flag" checks ptp: Fix ptp_kvm_getcrosststamp issue for x86 ptp_kvm x86/kvmclock: Move this_cpu_pvti into kvmclock.h selftests: KVM: Don't clobber XMM register when read KVM: VMX: Fix a TSX_CTRL_CPUID_CLEAR field mask issue
2021-09-28selftests: KVM: Don't clobber XMM register when readOliver Upton
There is no need to clobber a register that is only being read from. Oops. Drop the XMM register from the clobbers list. Signed-off-by: Oliver Upton <oupton@google.com> Message-Id: <20210927223621.50178-1-oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-09-27Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "A bit late... I got sidetracked by back-from-vacation routines and conferences. But most of these patches are already a few weeks old and things look more calm on the mailing list than what this pull request would suggest. x86: - missing TLB flush - nested virtualization fixes for SMM (secure boot on nested hypervisor) and other nested SVM fixes - syscall fuzzing fixes - live migration fix for AMD SEV - mirror VMs now work for SEV-ES too - fixes for reset - possible out-of-bounds access in IOAPIC emulation - fix enlightened VMCS on Windows 2022 ARM: - Add missing FORCE target when building the EL2 object - Fix a PMU probe regression on some platforms Generic: - KCSAN fixes selftests: - random fixes, mostly for clang compilation" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (43 commits) selftests: KVM: Explicitly use movq to read xmm registers selftests: KVM: Call ucall_init when setting up in rseq_test KVM: Remove tlbs_dirty KVM: X86: Synchronize the shadow pagetable before link it KVM: X86: Fix missed remote tlb flush in rmap_write_protect() KVM: x86: nSVM: don't copy virt_ext from vmcb12 KVM: x86: nSVM: test eax for 4K alignment for GP errata workaround KVM: x86: selftests: test simultaneous uses of V_IRQ from L1 and L0 KVM: x86: nSVM: restore int_vector in svm_clear_vintr kvm: x86: Add AMD PMU MSRs to msrs_to_save_all[] KVM: x86: nVMX: re-evaluate emulation_required on nested VM exit KVM: x86: nVMX: don't fail nested VM entry on invalid guest state if !from_vmentry KVM: x86: VMX: synthesize invalid VM exit when emulating invalid guest state KVM: x86: nSVM: refactor svm_leave_smm and smm_enter_smm KVM: x86: SVM: call KVM_REQ_GET_NESTED_STATE_PAGES on exit from SMM mode KVM: x86: reset pdptrs_from_userspace when exiting smm KVM: x86: nSVM: restore the L1 host state prior to resuming nested guest on SMM exit KVM: nVMX: Filter out all unsupported controls when eVMCS was activated KVM: KVM: Use cpumask_available() to check for NULL cpumask when kicking vCPUs KVM: Clean up benign vcpu->cpu data races when kicking vCPUs ...
2021-09-24selftests: KVM: Explicitly use movq to read xmm registersOliver Upton
Compiling the KVM selftests with clang emits the following warning: >> include/x86_64/processor.h:297:25: error: variable 'xmm0' is uninitialized when used here [-Werror,-Wuninitialized] >> return (unsigned long)xmm0; where xmm0 is accessed via an uninitialized register variable. Indeed, this is a misuse of register variables, which really should only be used for specifying register constraints on variables passed to inline assembly. Rather than attempting to read xmm registers via register variables, just explicitly perform the movq from the desired xmm register. Fixes: 783e9e51266e ("kvm: selftests: add API testing infrastructure") Signed-off-by: Oliver Upton <oupton@google.com> Message-Id: <20210924005147.1122357-1-oupton@google.com> Reviewed-by: Ricardo Koller <ricarkol@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-09-22KVM: selftests: Refactor help message for -s backing_srcDavid Matlack
All selftests that support the backing_src option were printing their own description of the flag and then calling backing_src_help() to dump the list of available backing sources. Consolidate the flag printing in backing_src_help() to align indentation, reduce duplicated strings, and improve consistency across tests. Note: Passing "-s" to backing_src_help is unnecessary since every test uses the same flag. However I decided to keep it for code readability at the call sites. While here this opportunistically fixes the incorrectly interleaved printing -x help message and list of backing source types in dirty_log_perf_test. Fixes: 609e6202ea5f ("KVM: selftests: Support multiple slots in dirty_log_perf_test") Reviewed-by: Ben Gardon <bgardon@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: David Matlack <dmatlack@google.com> Message-Id: <20210917173657.44011-3-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-09-16selftests: kvm: fix get_run_delay() ignoring fscanf() return warnShuah Khan
Fix get_run_delay() to check fscanf() return value to get rid of the following warning. When fscanf() fails return MIN_RUN_DELAY_NS from get_run_delay(). Move MIN_RUN_DELAY_NS from steal_time.c to test_util.h so get_run_delay() and steal_time.c can use it. lib/test_util.c: In function ‘get_run_delay’: lib/test_util.c:316:2: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 316 | fscanf(fp, "%ld %ld ", &val[0], &val[1]); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2021-09-16selftests: kvm: move get_run_delay() into lib/test_utilShuah Khan
get_run_delay() is defined static in xen_shinfo_test and steal_time test. Move it to lib and remove code duplication. Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2021-09-06Merge tag 'kvmarm-5.15' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for 5.15 - Page ownership tracking between host EL1 and EL2 - Rely on userspace page tables to create large stage-2 mappings - Fix incompatibility between pKVM and kmemleak - Fix the PMU reset state, and improve the performance of the virtual PMU - Move over to the generic KVM entry code - Address PSCI reset issues w.r.t. save/restore - Preliminary rework for the upcoming pKVM fixed feature - A bunch of MM cleanups - a vGIC fix for timer spurious interrupts - Various cleanups
2021-08-19selftests: KVM: Introduce psci_cpu_on_testOliver Upton
Introduce a test for aarch64 that ensures CPU resets induced by PSCI are reflected in the target vCPU's state, even if the target is never run again. This is a regression test for a race between vCPU migration and PSCI. Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210818202133.1106786-5-oupton@google.com
2021-08-10Merge branch 'kvm-vmx-secctl' into HEADPaolo Bonzini
Merge common topic branch for 5.14-rc6 and 5.15 merge window.
2021-08-06KVM: selftests: Support multiple slots in dirty_log_perf_testDavid Matlack
Introduce a new option to dirty_log_perf_test: -x number_of_slots. This causes the test to attempt to split the region of memory into the given number of slots. If the region cannot be evenly divided, the test will fail. This allows testing with more than one slot and therefore measure how performance scales with the number of memslots. Signed-off-by: David Matlack <dmatlack@google.com> Message-Id: <20210804222844.1419481-8-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-08-03KVM: selftests: Test access to XMM fast hypercallsVitaly Kuznetsov
Check that #UD is raised if bit 16 is clear in HYPERV_CPUID_FEATURES.EDX and an 'XMM fast' hypercall is issued. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Siddharth Chandrasekaran <sidcha@amazon.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210730122625.112848-5-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-14Merge tag 'kvm-s390-master-5.14-1' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: selftests: Fixes - provide memory model for IBM z196 and zEC12 - do not require 64GB of memory
2021-07-06KVM: selftests: introduce P44V64 for z196 and EC12Christian Borntraeger
Older machines like z196 and zEC12 do only support 44 bits of physical addresses. Make this the default and check via IBC if we are on a later machine. We then add P47V64 as an additional model. Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Link: https://lore.kernel.org/kvm/20210701153853.33063-1-borntraeger@de.ibm.com/ Fixes: 1bc603af73dd ("KVM: selftests: introduce P47V64 for s390x")
2021-06-25Merge tag 'kvmarm-5.14' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for v5.14. - Add MTE support in guests, complete with tag save/restore interface - Reduce the impact of CMOs by moving them in the page-table code - Allow device block mappings at stage-2 - Reduce the footprint of the vmemmap in protected mode - Support the vGIC on dumb systems such as the Apple M1 - Add selftest infrastructure to support multiple configuration and apply that to PMU/non-PMU setups - Add selftests for the debug architecture - The usual crop of PMU fixes
2021-06-24selftests: kvm: Allows userspace to handle emulation errors.Aaron Lewis
This test exercises the feature KVM_CAP_EXIT_ON_EMULATION_FAILURE. When enabled, errors in the in-kernel instruction emulator are forwarded to userspace with the instruction bytes stored in the exit struct for KVM_EXIT_INTERNAL_ERROR. So, when the guest attempts to emulate an 'flds' instruction, which isn't able to be emulated in KVM, instead of failing, KVM sends the instruction to userspace to handle. For this test to work properly the module parameter 'allow_smaller_maxphyaddr' has to be set. Signed-off-by: Aaron Lewis <aaronlewis@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Message-Id: <20210510144834.658457-3-aaronlewis@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-24KVM: selftests: Add selftest for KVM statistics data binary interfaceJing Zhang
Add selftest to check KVM stats descriptors validity. Reviewed-by: David Matlack <dmatlack@google.com> Reviewed-by: Ricardo Koller <ricarkol@google.com> Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com> Tested-by: Fuad Tabba <tabba@google.com> #arm64 Signed-off-by: Jing Zhang <jingzhangos@google.com> Message-Id: <20210618222709.1858088-7-jingzhangos@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-24KVM: sefltests: Add x86-64 test to verify MMU reacts to CPUID updatesSean Christopherson
Add an x86-only test to verify that x86's MMU reacts to CPUID updates that impact the MMU. KVM has had multiple bugs where it fails to reconfigure the MMU after the guest's vCPU model changes. Sadly, this test is effectively limited to shadow paging because the hardware page walk handler doesn't support software disabling of GBPAGES support, and KVM doesn't manually walk the GVA->GPA on faults for performance reasons (doing so would large defeat the benefits of TDP). Don't require !TDP for the tests as there is still value in running the tests with TDP, even though the tests will fail (barring KVM hacks). E.g. KVM should not completely explode if MAXPHYADDR results in KVM using 4-level vs. 5-level paging for the guest. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-20-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-24KVM: selftests: Add hugepage support for x86-64Sean Christopherson
Add x86-64 hugepage support in the form of a x86-only variant of virt_pg_map() that takes an explicit page size. To keep things simple, follow the existing logic for 4k pages and disallow creating a hugepage if the upper-level entry is present, even if the desired pfn matches. Opportunistically fix a double "beyond beyond" reported by checkpatch. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-19-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-24KVM: selftests: Add wrapper to allocate page table pageSean Christopherson
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>
2021-06-24KVM: selftests: Unconditionally allocate EPT tables in memslot 0Sean Christopherson
Drop the EPTP memslot param from all EPT helpers 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: <20210622200529.3650424-14-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-24KVM: selftests: Unconditionally use memslot '0' for page table allocationsSean Christopherson
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>
2021-06-24KVM: selftests: Unconditionally use memslot 0 for vaddr allocationsSean Christopherson
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>
2021-06-24KVM: selftests: Add helpers to allocate N pages of virtual memorySean Christopherson
Add wrappers to allocate 1 and N pages of memory using de facto standard values as the defaults for minimum virtual address, data memslot, and page table memslot. Convert all compatible users. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-7-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-24KVM: selftests: Unconditionally use memslot 0 when loading elf binarySean Christopherson
Use memslot '0' for all vm_vaddr_alloc() calls when loading the test binary. This is the first step toward adding a helper to handle page allocations with a default value for the target memslot. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-4-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-17KVM: selftests: Introduce hyperv_features testVitaly Kuznetsov
The initial implementation of the test only tests that access to Hyper-V MSRs and hypercalls is in compliance with guest visible CPUID feature bits. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210521095204.2161214-31-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-17KVM: selftests: Move evmcs.h to x86_64/Vitaly Kuznetsov
evmcs.h is x86_64 only thing, move it to x86_64/ subdirectory. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210521095204.2161214-30-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-17KVM: selftests: move Hyper-V MSR definitions to hyperv.hVitaly Kuznetsov
These defines can be shared by multiple tests, move them to a dedicated header. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210521095204.2161214-29-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-17KVM: selftests: Introduce x2APIC register manipulation functionsJim Mattson
Standardize reads and writes of the x2APIC MSRs. Signed-off-by: Jim Mattson <jmattson@google.com> Reviewed-by: Oliver Upton <oupton@google.com> Message-Id: <20210604172611.281819-11-jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-17KVM: selftests: Hoist APIC functions out of individual testsJim Mattson
Move the APIC functions into the library to encourage code reuse and to avoid unintended deviations. Signed-off-by: Jim Mattson <jmattson@google.com> Reviewed-by: Oliver Upton <oupton@google.com> Message-Id: <20210604172611.281819-10-jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-17KVM: selftests: Move APIC definitions into a separate fileJim Mattson
Processor.h is a hodgepodge of definitions. Though the local APIC is technically built into the CPU these days, move the APIC definitions into a new header file: apic.h. Signed-off-by: Jim Mattson <jmattson@google.com> Reviewed-by: Oliver Upton <oupton@google.com> Message-Id: <20210604172611.281819-9-jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-14KVM: selftests: Add aarch64/debug-exceptions testRicardo Koller
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 <ricarkol@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210611011020.3420067-7-ricarkol@google.com
2021-06-14KVM: selftests: Add exception handling support for aarch64Ricardo Koller
Add the infrastructure needed to enable exception handling in aarch64 selftests. The exception handling defaults to an unhandled-exception handler which aborts the test, just like x86. These handlers can be overridden by calling vm_install_exception_handler(vector) or vm_install_sync_handler(vector, ec). The unhandled exception reporting from the guest is done using the ucall type introduced in a previous commit, UCALL_UNHANDLED. The exception handling code is inspired on kvm-unit-tests. Signed-off-by: Ricardo Koller <ricarkol@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210611011020.3420067-6-ricarkol@google.com
2021-06-14KVM: selftests: Move GUEST_ASSERT_EQ to utils headerRicardo Koller
Move GUEST_ASSERT_EQ to a common header, kvm_util.h, for other architectures and tests to use. Also modify __GUEST_ASSERT so it can be reused to implement GUEST_ASSERT_EQ. Signed-off-by: Ricardo Koller <ricarkol@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210611011020.3420067-5-ricarkol@google.com
generated by cgit (git 2.34.1) at 2024-05-26 19:00:52 +0000