On Wed, May 7, 2025 at 9:56 AM Oliver Upton <oliver.upton@xxxxxxxxx> wrote: > > Hi Paolo, > > This is probably the last batch of fixes I have for 6.15. The bug in > user_mem_abort() getting fixed is likely to bite some folks. On top of > that, Marc snuck in another erratum fix for AmpereOne with more to come > on that front... > > Please pull. > > The following changes since commit b4432656b36e5cc1d50a1f2dc15357543add530e: > > Linux 6.15-rc4 (2025-04-27 15:19:23 -0700) Done, thanks. Paolo > are available in the Git repository at: > > https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git/ tags/kvmarm-fixes-6.15-3 > > for you to fetch changes up to 3949e28786cd0afcd96a46ce6629245203f629e5: > > KVM: arm64: Fix memory check in host_stage2_set_owner_locked() (2025-05-07 00:17:05 -0700) > > ---------------------------------------------------------------- > KVM/arm64 fixes for 6.15, round #3 > > - Avoid use of uninitialized memcache pointer in user_mem_abort() > > - Always set HCR_EL2.xMO bits when running in VHE, allowing interrupts > to be taken while TGE=0 and fixing an ugly bug on AmpereOne that > occurs when taking an interrupt while clearing the xMO bits > (AC03_CPU_36) > > - Prevent VMMs from hiding support for AArch64 at any EL virtualized by > KVM > > - Save/restore the host value for HCRX_EL2 instead of restoring an > incorrect fixed value > > - Make host_stage2_set_owner_locked() check that the entire requested > range is memory rather than just the first page > > ---------------------------------------------------------------- > Marc Zyngier (5): > KVM: arm64: Force HCR_EL2.xMO to 1 at all times in VHE mode > KVM: arm64: Prevent userspace from disabling AArch64 support at any virtualisable EL > KVM: arm64: selftest: Don't try to disable AArch64 support > KVM: arm64: Properly save/restore HCRX_EL2 > KVM: arm64: Kill HCRX_HOST_FLAGS > > Mostafa Saleh (1): > KVM: arm64: Fix memory check in host_stage2_set_owner_locked() > > Sebastian Ott (1): > KVM: arm64: Fix uninitialized memcache pointer in user_mem_abort() > > arch/arm64/include/asm/el2_setup.h | 2 +- > arch/arm64/include/asm/kvm_arm.h | 3 +-- > arch/arm64/kvm/hyp/include/hyp/switch.h | 13 +++++---- > arch/arm64/kvm/hyp/nvhe/mem_protect.c | 2 +- > arch/arm64/kvm/hyp/vgic-v3-sr.c | 36 ++++++++++++++----------- > arch/arm64/kvm/mmu.c | 13 +++++---- > arch/arm64/kvm/sys_regs.c | 6 +++++ > tools/testing/selftests/kvm/arm64/set_id_regs.c | 8 +++--- > 8 files changed, 48 insertions(+), 35 deletions(-) >
