| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <CABgObfbs2NZhRxnW0tV1yUOXSoFhnYMJ4e0hx6jRmiZOL6gqJA@mail.gmail.com>
Date: Mon, 8 Jan 2024 13:56:25 +0100
From: Paolo Bonzini <pbonzini@...hat.com>
To: Sean Christopherson <seanjc@...gle.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] KVM: x86: Hyper-V changes for 6.8
On Thu, Jan 4, 2024 at 8:33 PM Sean Christopherson <seanjc@...gle.com> wrote:
>
> This is essentially Vitaly's series to add CONFIG_KVM_HYPERV, along with a
> one-off patch to clean up the range-based TLB flush APIs. While it's not super
> obvious that adding CONFIG_KVM_HYPERV is worth the churn, e.g. very few setups
> can actually disable CONFIG_KVM_HYPERV in practice, the end result is nice and
> at the very least makes it easier for non-HyperV gurus to follow along.
>
> The following changes since commit e9e60c82fe391d04db55a91c733df4a017c28b2f:
>
> selftests/kvm: fix compilation on non-x86_64 platforms (2023-11-21 11:58:25 -0500)
>
> are available in the Git repository at:
>
> https://github.com/kvm-x86/linux.git tags/kvm-x86-hyperv-6.8
>
> for you to fetch changes up to 017a99a966f1183e611f0b0fa6bec40160c81813:
>
> KVM: nSVM: Hide more stuff under CONFIG_KVM_HYPERV/CONFIG_HYPERV (2023-12-07 09:35:26 -0800)
Pulled, thanks.
Paolo
> ----------------------------------------------------------------
> KVM x86 Hyper-V changes for 6.8:
>
> - Guard KVM-on-HyperV's range-based TLB flush hooks with an #ifdef on
> CONFIG_HYPERV as a minor optimization, and to self-document the code.
>
> - Add CONFIG_KVM_HYPERV to allow disabling KVM support for HyperV "emulation"
> at build time.
>
> ----------------------------------------------------------------
> Sean Christopherson (1):
> KVM: x86/mmu: Declare flush_remote_tlbs{_range}() hooks iff HYPERV!=n
>
> Vitaly Kuznetsov (16):
> KVM: x86/xen: Remove unneeded xen context from kvm_arch when !CONFIG_KVM_XEN
> KVM: x86: Move Hyper-V partition assist page out of Hyper-V emulation context
> KVM: VMX: Split off vmx_onhyperv.{ch} from hyperv.{ch}
> KVM: x86: Introduce helper to check if auto-EOI is set in Hyper-V SynIC
> KVM: x86: Introduce helper to check if vector is set in Hyper-V SynIC
> KVM: VMX: Split off hyperv_evmcs.{ch}
> KVM: x86: Introduce helper to handle Hyper-V paravirt TLB flush requests
> KVM: nVMX: Split off helper for emulating VMCLEAR on Hyper-V eVMCS
> KVM: selftests: Make Hyper-V tests explicitly require KVM Hyper-V support
> KVM: selftests: Fix vmxon_pa == vmcs12_pa == -1ull nVMX testcase for !eVMCS
> KVM: nVMX: Move guest_cpuid_has_evmcs() to hyperv.h
> KVM: x86: Make Hyper-V emulation optional
> KVM: nVMX: Introduce helpers to check if Hyper-V evmptr12 is valid/set
> KVM: nVMX: Introduce accessor to get Hyper-V eVMCS pointer
> KVM: nVMX: Hide more stuff under CONFIG_KVM_HYPERV
> KVM: nSVM: Hide more stuff under CONFIG_KVM_HYPERV/CONFIG_HYPERV
>
> arch/x86/include/asm/kvm-x86-ops.h | 2 +
> arch/x86/include/asm/kvm_host.h | 25 +-
> arch/x86/kvm/Kconfig | 14 +
> arch/x86/kvm/Makefile | 16 +-
> arch/x86/kvm/cpuid.c | 6 +
> arch/x86/kvm/hyperv.h | 85 +++-
> arch/x86/kvm/irq.c | 2 +
> arch/x86/kvm/irq_comm.c | 9 +-
> arch/x86/kvm/kvm_onhyperv.h | 20 +
> arch/x86/kvm/lapic.c | 5 +-
> arch/x86/kvm/mmu/mmu.c | 12 +-
> arch/x86/kvm/svm/hyperv.h | 9 +
> arch/x86/kvm/svm/nested.c | 30 +-
> arch/x86/kvm/svm/svm.h | 2 +
> arch/x86/kvm/svm/svm_onhyperv.c | 10 +-
> arch/x86/kvm/vmx/hyperv.c | 447 ---------------------
> arch/x86/kvm/vmx/hyperv.h | 238 +++--------
> arch/x86/kvm/vmx/hyperv_evmcs.c | 315 +++++++++++++++
> arch/x86/kvm/vmx/hyperv_evmcs.h | 166 ++++++++
> arch/x86/kvm/vmx/nested.c | 149 ++++---
> arch/x86/kvm/vmx/nested.h | 3 +-
> arch/x86/kvm/vmx/vmx.c | 20 +-
> arch/x86/kvm/vmx/vmx.h | 12 +-
> arch/x86/kvm/vmx/vmx_onhyperv.c | 36 ++
> arch/x86/kvm/vmx/vmx_onhyperv.h | 125 ++++++
> arch/x86/kvm/vmx/vmx_ops.h | 2 +-
> arch/x86/kvm/x86.c | 66 ++-
> tools/testing/selftests/kvm/x86_64/hyperv_clock.c | 2 +
> tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c | 5 +-
> .../kvm/x86_64/hyperv_extended_hypercalls.c | 2 +
> .../testing/selftests/kvm/x86_64/hyperv_features.c | 2 +
> tools/testing/selftests/kvm/x86_64/hyperv_ipi.c | 2 +
> .../testing/selftests/kvm/x86_64/hyperv_svm_test.c | 1 +
> .../selftests/kvm/x86_64/hyperv_tlb_flush.c | 2 +
> .../kvm/x86_64/vmx_set_nested_state_test.c | 16 +-
> 35 files changed, 1091 insertions(+), 767 deletions(-)
> create mode 100644 arch/x86/kvm/vmx/hyperv_evmcs.c
> create mode 100644 arch/x86/kvm/vmx/hyperv_evmcs.h
> create mode 100644 arch/x86/kvm/vmx/vmx_onhyperv.c
> create mode 100644 arch/x86/kvm/vmx/vmx_onhyperv.h
>
Powered by blists - more mailing lists