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Bae" To: pbonzini@redhat.com, seanjc@google.com Cc: kvm@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, zhao1.liu@intel.com, chang.seok.bae@intel.com Subject: [PATCH v8 00/20] KVM: x86: Enable APX for guests Date: Wed, 30 Sep 2026 21:07:30 +0000 Message-ID: <20260930210750.1487547-1-chang.seok.bae@intel.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Paolo, Here is a rebase onto the KVM next tree including Zhao's test tag. I expect Sashiko to reply to a bunch of patches. I previously found some false positives, so I will comment on them again in this posting. Thanks, Chang References: * Repository: git://github.com/intel/apx.git apx-kvm_v8 * KVM unit test: https://lore.kernel.org/20260420212355.507827-1-chang.seok.bae@intel.com * Previous posting, V7: https://lore.kernel.org/kvm/20260902021804.718676-1-chang.seok.bae@intel.com Thanks, Chang Chang S. Bae (19): KVM: x86: Extend VCPU registers for EGPRs KVM: VMX: Save guest EGPRs in VCPU cache KVM: x86: Support APX state for XSAVE ABI KVM: VMX: Refactor VMX instruction information access KVM: VMX: Refactor instruction information decoding KVM: VMX: Remove unused control-register access defines KVM: VMX: Refactor register index retrieval from exit qualification KVM: VMX: Support instruction information extension KVM: nVMX: Propagate extended instruction information KVM: x86: Support EGPR accessing and tracking for emulator KVM: x86: Handle EGPR index and REX2-incompatible opcodes KVM: x86: Support REX2-prefixed opcode decode KVM: x86: Reject EVEX-prefixed instructions KVM: x86: Guard valid XCR0.APX settings KVM: x86: Add APX to supported XCR0 KVM: x86: Expose APX foundation feature to userspace KVM: x86: Expose APX sub-features to userspace KVM: x86: selftests: Add APX state and ABI test KVM: x86: selftests: Add APX state handling and XCR0 sanity checks Sean Christopherson (1): KVM: x86: Move KVM_SUPPORTED_{XCR0,XSS} into kvm_x86_vendor_init() arch/x86/Kconfig.assembler | 5 + arch/x86/include/asm/cpuid/api.h | 1 + arch/x86/include/asm/kvm_host.h | 19 ++ arch/x86/include/asm/kvm_vcpu_regs.h | 50 +++++ arch/x86/include/asm/vmx.h | 22 +- arch/x86/kvm/Kconfig | 4 + arch/x86/kvm/cpuid.c | 27 ++- arch/x86/kvm/cpuid.h | 2 + arch/x86/kvm/emulate.c | 121 +++++++---- arch/x86/kvm/kvm_emulate.h | 21 +- arch/x86/kvm/reverse_cpuid.h | 6 + arch/x86/kvm/svm/svm.c | 8 +- arch/x86/kvm/vmenter.h | 1 + arch/x86/kvm/vmx/nested.c | 75 +++---- arch/x86/kvm/vmx/nested.h | 2 +- arch/x86/kvm/vmx/vmcs12.c | 1 + arch/x86/kvm/vmx/vmcs12.h | 3 +- arch/x86/kvm/vmx/vmenter.S | 31 ++- arch/x86/kvm/vmx/vmx.c | 28 ++- arch/x86/kvm/vmx/vmx.h | 77 ++++++- arch/x86/kvm/x86.c | 92 +++++++-- tools/testing/selftests/kvm/Makefile.kvm | 1 + .../selftests/kvm/include/x86/processor.h | 120 +++++++++++ tools/testing/selftests/kvm/x86/apx_test.c | 191 ++++++++++++++++++ tools/testing/selftests/kvm/x86/state_test.c | 3 + .../selftests/kvm/x86/xcr0_cpuid_test.c | 19 ++ 26 files changed, 802 insertions(+), 128 deletions(-) create mode 100644 tools/testing/selftests/kvm/x86/apx_test.c base-commit: d4b7fb647204f0c81dfeae2d1a708e4d858e0c94 -- 2.53.0