Linus, The following changes since commit c8d430db8eec7d4fd13a6bea27b7086a54eda6da: Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD (2024-10-06 03:59:22 -0400) are available in the Git repository at: https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus for you to fetch changes up to e9001a382fa2c256229adc68d55212028b01d515: Merge tag 'kvmarm-fixes-6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD (2024-10-20 12:10:59 -0400) After seeing your release commentary yesterday, well, this is not going to make rc5 smaller. The short description is that there is mostly Arm stuff here (due to me sitting on submaintainer pull requests for perhaps too long) and a bit of everything for x86 (host, guest, selftests, docs). Paolo ---------------------------------------------------------------- ARM64: * Fix the guest view of the ID registers, making the relevant fields writable from userspace (affecting ID_AA64DFR0_EL1 and ID_AA64PFR1_EL1) * Correcly expose S1PIE to guests, fixing a regression introduced in 6.12-rc1 with the S1POE support * Fix the recycling of stage-2 shadow MMUs by tracking the context (are we allowed to block or not) as well as the recycling state * Address a couple of issues with the vgic when userspace misconfigures the emulation, resulting in various splats. Headaches courtesy of our Syzkaller friends * Stop wasting space in the HYP idmap, as we are dangerously close to the 4kB limit, and this has already exploded in -next * Fix another race in vgic_init() * Fix a UBSAN error when faking the cache topology with MTE enabled RISCV: * RISCV: KVM: use raw_spinlock for critical section in imsic x86: * A bandaid for lack of XCR0 setup in selftests, which causes trouble if the compiler is configured to have x86-64-v3 (with AVX) as the default ISA. Proper XCR0 setup will come in the next merge window. * Fix an issue where KVM would not ignore low bits of the nested CR3 and potentially leak up to 31 bytes out of the guest memory's bounds * Fix case in which an out-of-date cached value for the segments could by returned by KVM_GET_SREGS. * More cleanups for KVM_X86_QUIRK_SLOT_ZAP_ALL * Override MTRR state for KVM confidential guests, making it WB by default as is already the case for Hyper-V guests. Generic: * Remove a couple of unused functions ---------------------------------------------------------------- Cyan Yang (1): RISCV: KVM: use raw_spinlock for critical section in imsic Dr. David Alan Gilbert (2): KVM: Remove unused kvm_vcpu_gfn_to_pfn KVM: Remove unused kvm_vcpu_gfn_to_pfn_atomic Ilkka Koskinen (1): KVM: arm64: Fix shift-out-of-bounds bug Kirill A. Shutemov (1): x86/kvm: Override default caching mode for SEV-SNP and TDX Marc Zyngier (3): Merge branch kvm-arm64/idregs-6.12 into kvmarm/fixes KVM: arm64: Don't eagerly teardown the vgic on init error KVM: arm64: Shave a few bytes from the EL2 idmap code Mark Brown (1): KVM: arm64: Expose S1PIE to guests Maxim Levitsky (1): KVM: VMX: reset the segment cache after segment init in vmx_vcpu_reset() Oliver Upton (7): KVM: arm64: Unregister redistributor for failed vCPU creation KVM: arm64: nv: Keep reference on stage-2 MMU when scheduled out KVM: arm64: nv: Do not block when unmapping stage-2 if disallowed KVM: arm64: nv: Punt stage-2 recycling to a vCPU request KVM: arm64: nv: Clarify safety of allowing TLBI unmaps to reschedule KVM: arm64: vgic: Don't check for vgic_ready() when setting NR_IRQS KVM: arm64: Ensure vgic_ready() is ordered against MMIO registration Paolo Bonzini (2): Merge tag 'kvmarm-fixes-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD Merge tag 'kvmarm-fixes-6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD Sean Christopherson (5): KVM: x86/mmu: Zap only SPs that shadow gPTEs when deleting memslot KVM: x86/mmu: Add lockdep assert to enforce safe usage of kvm_unmap_gfn_range() KVM: x86: Clean up documentation for KVM_X86_QUIRK_SLOT_ZAP_ALL KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory KVM: selftests: Fix out-of-bounds reads in CPUID test's array lookups Shameer Kolothum (1): KVM: arm64: Make the exposed feature bits in AA64DFR0_EL1 writable from userspace Shaoqin Huang (4): KVM: arm64: Disable fields that KVM doesn't know how to handle in ID_AA64PFR1_EL1 KVM: arm64: Use kvm_has_feat() to check if FEAT_SSBS is advertised to the guest KVM: arm64: Allow userspace to change ID_AA64PFR1_EL1 KVM: selftests: aarch64: Add writable test for ID_AA64PFR1_EL1 Vitaly Kuznetsov (1): KVM: selftests: x86: Avoid using SSE/AVX instructions Documentation/virt/kvm/api.rst | 16 ++--- Documentation/virt/kvm/locking.rst | 2 +- arch/arm64/include/asm/kvm_asm.h | 1 + arch/arm64/include/asm/kvm_host.h | 7 +++ arch/arm64/include/asm/kvm_mmu.h | 3 +- arch/arm64/include/asm/kvm_nested.h | 4 +- arch/arm64/kernel/asm-offsets.c | 1 + arch/arm64/kvm/arm.c | 5 ++ arch/arm64/kvm/hyp/nvhe/hyp-init.S | 52 ++++++++------- arch/arm64/kvm/hypercalls.c | 12 ++-- arch/arm64/kvm/mmu.c | 15 ++--- arch/arm64/kvm/nested.c | 53 +++++++++++++--- arch/arm64/kvm/sys_regs.c | 77 ++++++++++++++++++++--- arch/arm64/kvm/vgic/vgic-init.c | 41 ++++++++++-- arch/arm64/kvm/vgic/vgic-kvm-device.c | 7 ++- arch/riscv/kvm/aia_imsic.c | 8 +-- arch/x86/kernel/kvm.c | 4 ++ arch/x86/kvm/mmu/mmu.c | 27 +++++--- arch/x86/kvm/svm/nested.c | 6 +- arch/x86/kvm/vmx/vmx.c | 6 +- include/linux/kvm_host.h | 2 - tools/testing/selftests/kvm/Makefile | 1 + tools/testing/selftests/kvm/aarch64/set_id_regs.c | 16 ++++- tools/testing/selftests/kvm/x86_64/cpuid_test.c | 2 +- virt/kvm/kvm_main.c | 12 ---- 25 files changed, 277 insertions(+), 103 deletions(-)
