This series adds KVM selftests for Secure AVIC.
The Secure AVIC KVM support patch series is at:
https://lore.kernel.org/kvm/20250923050317.205482-1-Neeraj.Upadhyay@amd.com/
Git tree is available at:
https://github.com/AMDESE/linux-kvm/tree/savic-host-latest
Changes since v1:
v1: https://lore.kernel.org/lkml/20250228093024.114983-1-Neeraj.Upadhyay@amd.com...
- Drop Secure AVIC APIC regs test as it relied on KVM_GET_LAPIC, KVM_SET_LAPIC IOCTLS. Since commit f65916a ("KVM: TDX: Force APICv active for TDX guest"), these IOCTLs do not work for protected APIC guests. - Rebase on top of latest kvm next tree. - Add detailed commit logs. - Clean up the instruction decoder.
Neeraj Upadhyay (29): KVM: selftests: Return an unused GHCB from the pool KVM: selftests: Align GHCB entry struct to page size KVM: selftests: Add #VC exception handler with error code support KVM: selftests: Add MSR access support for SEV-ES guests KVM: selftests: Skip guest memory checks for APIC MMIO mapping KVM: selftests: Add x86 instruction decoding library KVM: selftests: Adapt instruction decoder library for userspace KVM: selftests: Restrict instruction decoder to x86_64 only KVM: selftests: Remove unneeded functions from instruction decoder KVM: selftests: Fix missing definitions in x86 instruction decoder KVM: selftests: Change pt_regs to ex_regs for selftest use KVM: selftests: Add compilation for instruction decoder library KVM: selftests: Add MMIO #VC exception handling for SEV-ES guests KVM: selftests: Add instruction decoding for movabs instructions KVM: selftests: Add SEV guest support in xapic_state_test KVM: selftests: Add x2apic mode testing in xapic_ipi_test KVM: selftests: Add SEV VM support in xapic_ipi_test KVM: selftests: Add Secure AVIC library KVM: selftests: Add #VC handler for unaccelerated Secure AVIC MSRs KVM: selftests: Add IPI handling support for Secure AVIC KVM: selftests: Add args parameter to kvm_arch_vm_post_create() KVM: selftests: Add GHCB call for SAVIC backing page notification KVM: selftests: Add Secure AVIC mode to xapic_ipi_test KVM: selftests: Add test to verify APIC MSR accesses for SAVIC guest KVM: selftests: Extend savic_test with idle halt testing KVM: selftests: Add IOAPIC tests for Secure AVIC KVM: selftests: Add cross-vCPU IPI testing for SAVIC guests KVM: selftests: Add NMI test for SAVIC guests KVM: selftests: Add MSI injection test for SAVIC
Peter Gonda (6): Add GHCB with setters and getters Add arch specific additional guest pages Add vm_vaddr_alloc_pages_shared() Add GHCB allocations and helpers Add is_sev_enabled() helpers Add ability for SEV-ES guests to use ucalls via GHCB
tools/arch/x86/include/asm/msr-index.h | 4 +- tools/testing/selftests/kvm/.gitignore | 3 +- tools/testing/selftests/kvm/Makefile.kvm | 14 +- .../testing/selftests/kvm/arm64/set_id_regs.c | 2 +- .../testing/selftests/kvm/include/kvm_util.h | 14 +- .../testing/selftests/kvm/include/x86/apic.h | 57 + .../selftests/kvm/include/x86/insn-eval.h | 48 + .../selftests/kvm/include/x86/processor.h | 8 + .../testing/selftests/kvm/include/x86/savic.h | 25 + tools/testing/selftests/kvm/include/x86/sev.h | 29 + tools/testing/selftests/kvm/include/x86/svm.h | 109 ++ tools/testing/selftests/kvm/lib/kvm_util.c | 109 +- .../testing/selftests/kvm/lib/x86/handlers.S | 4 +- .../testing/selftests/kvm/lib/x86/insn-eval.c | 1238 +++++++++++++++++ .../testing/selftests/kvm/lib/x86/processor.c | 24 +- tools/testing/selftests/kvm/lib/x86/savic.c | 488 +++++++ tools/testing/selftests/kvm/lib/x86/sev.c | 581 +++++++- tools/testing/selftests/kvm/lib/x86/ucall.c | 18 + tools/testing/selftests/kvm/s390/cmma_test.c | 2 +- tools/testing/selftests/kvm/x86/savic_test.c | 1171 ++++++++++++++++ .../selftests/kvm/x86/sev_smoke_test.c | 40 +- .../selftests/kvm/x86/xapic_ipi_test.c | 183 ++- .../selftests/kvm/x86/xapic_state_test.c | 117 +- 23 files changed, 4192 insertions(+), 96 deletions(-) create mode 100644 tools/testing/selftests/kvm/include/x86/insn-eval.h create mode 100644 tools/testing/selftests/kvm/include/x86/savic.h create mode 100644 tools/testing/selftests/kvm/lib/x86/insn-eval.c create mode 100644 tools/testing/selftests/kvm/lib/x86/savic.c create mode 100644 tools/testing/selftests/kvm/x86/savic_test.c
base-commit: a6ad54137af92535cfe32e19e5f3bc1bb7dbd383