Linus, The following changes since commit 2014c95afecee3e76ca4a56956a936e23283f05b: Linux 6.14-rc1 (2025-02-02 15:39:26 -0800) 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 43fb96ae78551d7bfa4ecca956b258f085d67c40: KVM: x86/mmu: Ensure NX huge page recovery thread is alive before waking (2025-02-04 11:28:21 -0500) One thing that stands out here is an s390 cleanup to the page table management code, which is quite different from everyone else's in KVM land. This came in a bit late due to the holidays and I initially wanted to hold it until 6.15; on the other hand it would block some of the page descriptor work due to how KVM/s390 used page->index and page->lru for its own stuff; so, here it is. The rest is bugfixes, mostly ARM. ---------------------------------------------------------------- ARM: * Correctly clean the BSS to the PoC before allowing EL2 to access it on nVHE/hVHE/protected configurations * Propagate ownership of debug registers in protected mode after the rework that landed in 6.14-rc1 * Stop pretending that we can run the protected mode without a GICv3 being present on the host * Fix a use-after-free situation that can occur if a vcpu fails to initialise the NV shadow S2 MMU contexts * Always evaluate the need to arm a background timer for fully emulated guest timers * Fix the emulation of EL1 timers in the absence of FEAT_ECV * Correctly handle the EL2 virtual timer, specially when HCR_EL2.E2H==0 s390: * move some of the guest page table (gmap) logic into KVM itself, inching towards the final goal of completely removing gmap from the non-kvm memory management code. As an initial set of cleanups, move some code from mm/gmap into kvm and start using __kvm_faultin_pfn() to fault-in pages as needed; but especially stop abusing page->index and page->lru to aid in the pgdesc conversion. x86: * Add missing check in the fix to defer starting the huge page recovery vhost_task * SRSO_USER_KERNEL_NO does not need SYNTHESIZED_F ---------------------------------------------------------------- Christoph Schlameuss (1): KVM: s390: selftests: Streamline uc_skey test to issue iske after sske Claudio Imbrenda (14): KVM: s390: wrapper for KVM_BUG KVM: s390: fake memslot for ucontrol VMs KVM: s390: selftests: fix ucontrol memory region test KVM: s390: move pv gmap functions into kvm KVM: s390: use __kvm_faultin_pfn() KVM: s390: get rid of gmap_fault() KVM: s390: get rid of gmap_translate() KVM: s390: move some gmap shadowing functions away from mm/gmap.c KVM: s390: stop using page->index for non-shadow gmaps KVM: s390: stop using lists to keep track of used dat tables KVM: s390: move gmap_shadow_pgt_lookup() into kvm KVM: s390: remove useless page->index usage KVM: s390: move PGSTE softbits KVM: s390: remove the last user of page->index Colin Ian King (1): KVM: selftests: Fix spelling mistake "initally" -> "initially" David Hildenbrand (4): KVM: s390: vsie: fix some corner-cases when grabbing vsie pages KVM: s390: vsie: stop using page->index KVM: s390: vsie: stop messing with page refcount KVM: s390: vsie: stop using "struct page" for vsie page Lokesh Vutla (1): KVM: arm64: Flush hyp bss section after initialization of variables in bss Marc Zyngier (4): KVM: arm64: Fix nested S2 MMU structures reallocation KVM: arm64: timer: Always evaluate the need for a soft timer KVM: arm64: timer: Correctly handle EL1 timer emulation when !FEAT_ECV KVM: arm64: timer: Don't adjust the EL2 virtual timer offset Oliver Upton (2): KVM: arm64: Flush/sync debug state in protected mode KVM: arm64: Fail protected mode init if no vgic hardware is present Paolo Bonzini (4): kvm: x86: SRSO_USER_KERNEL_NO is not synthesized Merge tag 'kvm-s390-next-6.14-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD Merge tag 'kvmarm-fixes-6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM: remove kvm_arch_post_init_vm Sean Christopherson (2): KVM: Do not restrict the size of KVM-internal memory regions KVM: x86/mmu: Ensure NX huge page recovery thread is alive before waking Documentation/virt/kvm/api.rst | 2 +- arch/arm64/kvm/arch_timer.c | 49 +- arch/arm64/kvm/arm.c | 20 + arch/arm64/kvm/hyp/nvhe/hyp-main.c | 24 + arch/arm64/kvm/nested.c | 9 +- arch/arm64/kvm/sys_regs.c | 16 +- arch/s390/include/asm/gmap.h | 20 +- arch/s390/include/asm/kvm_host.h | 6 +- arch/s390/include/asm/pgtable.h | 21 +- arch/s390/include/asm/uv.h | 6 +- arch/s390/kernel/uv.c | 292 +--------- arch/s390/kvm/Makefile | 2 +- arch/s390/kvm/gaccess.c | 44 +- arch/s390/kvm/gmap-vsie.c | 142 +++++ arch/s390/kvm/gmap.c | 212 +++++++ arch/s390/kvm/gmap.h | 39 ++ arch/s390/kvm/intercept.c | 7 +- arch/s390/kvm/interrupt.c | 19 +- arch/s390/kvm/kvm-s390.c | 237 ++++++-- arch/s390/kvm/kvm-s390.h | 19 + arch/s390/kvm/pv.c | 21 + arch/s390/kvm/vsie.c | 106 ++-- arch/s390/mm/gmap.c | 681 +++++------------------ arch/s390/mm/pgalloc.c | 2 - arch/x86/kvm/cpuid.c | 2 +- arch/x86/kvm/mmu/mmu.c | 33 +- arch/x86/kvm/x86.c | 7 +- include/linux/kvm_host.h | 1 - tools/testing/selftests/kvm/s390/cmma_test.c | 4 +- tools/testing/selftests/kvm/s390/ucontrol_test.c | 32 +- virt/kvm/kvm_main.c | 25 +- 31 files changed, 1093 insertions(+), 1007 deletions(-) create mode 100644 arch/s390/kvm/gmap-vsie.c create mode 100644 arch/s390/kvm/gmap.c create mode 100644 arch/s390/kvm/gmap.h
