On Thu, Feb 20, 2025 at 6:44 PM Marc Zyngier <maz@xxxxxxxxxx> wrote: > > Paolo, > > Another week, another set of fixes. > > This time around, we have a focus on MMU bugs, with one bug affecting > hVHE EL2 stage-1 and picking the ASID from the wrong register, while > the other affects VHE and allows it to run with a stale VMID value. > > Either way, this is ugly. > > Please pull, Pulled, thanks. Paolo > M. > > The following changes since commit 0ad2507d5d93f39619fc42372c347d6006b64319: > > Linux 6.14-rc3 (2025-02-16 14:02:44 -0800) > > are available in the Git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-6.14-3 > > for you to fetch changes up to fa808ed4e199ed17d878eb75b110bda30dd52434: > > KVM: arm64: Ensure a VMID is allocated before programming VTTBR_EL2 (2025-02-20 16:29:28 +0000) > > ---------------------------------------------------------------- > KVM/arm64 fixes for 6.14, take #3 > > - Fix TCR_EL2 configuration to not use the ASID in TTBR1_EL2 > and not mess-up T1SZ/PS by using the HCR_EL2.E2H==0 layout. > > - Bring back the VMID allocation to the vcpu_load phase, ensuring > that we only setup VTTBR_EL2 once on VHE. This cures an ugly > race that would lead to running with an unallocated VMID. > > ---------------------------------------------------------------- > Oliver Upton (1): > KVM: arm64: Ensure a VMID is allocated before programming VTTBR_EL2 > > Will Deacon (1): > KVM: arm64: Fix tcr_el2 initialisation in hVHE mode > > arch/arm64/include/asm/kvm_arm.h | 2 +- > arch/arm64/include/asm/kvm_host.h | 2 +- > arch/arm64/kvm/arm.c | 37 +++++++++++++++++-------------------- > arch/arm64/kvm/vmid.c | 11 +++-------- > 4 files changed, 22 insertions(+), 30 deletions(-) >
