| Message ID | 20181019125901.185478-1-marc.zyngier@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 19/10/2018 14:58, Marc Zyngier wrote: > Paolo, Radim, > > This is the bulk of the KVM/arm changes for 4.20. This time, the > biggest change by far is the support for variable addressing range in > guests, allowing userspace to size arm64 VMs from 32 to 52bits instead > of the hard-coded 40bits we've enjoyed so far. Other than that, we > have a random selection of small fixes and cleanups. > > Note that this will generate a few minor conflicts with the arm64 tree, > which should be resolved as per this branch[1]. That's a bit annoying. KVM parts of "Support Common Not Private translations" should not have gone through the arm64 tree. Instead, Catalin should have placed the first patches in a topic branch for you to pull. This minimizes the effort for everyone else, basically. Conflicts need to be sorted out by Stephen Rothwell, myself and Linus/Greg, while topic branches just work. If it weren't for the include/uapi/linux/kvm.h change, where I have to sort the capability numbers as they are assigned by the various architecture maintainers(*), I would have told you to just send the pull request to Catalin this time through (but that would just be a band-aid, it should not be the norm). Anyway, just remember this next time. Thanks, Paolo (*) That's also a bit suboptimal, because it complicates debugging of new features after they're merged, but I have no better idea.
Paolo, Radim, This is the bulk of the KVM/arm changes for 4.20. This time, the biggest change by far is the support for variable addressing range in guests, allowing userspace to size arm64 VMs from 32 to 52bits instead of the hard-coded 40bits we've enjoyed so far. Other than that, we have a random selection of small fixes and cleanups. Note that this will generate a few minor conflicts with the arm64 tree, which should be resolved as per this branch[1]. Please pull, M. [1] git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git merge-resolution-4.20 The following changes since commit 6bf4ca7fbc85d80446ac01c0d1d77db4d91a6d84: Linux 4.19-rc5 (2018-09-23 19:15:18 +0200) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-for-v4.20 for you to fetch changes up to e4e11cc0f81ee7be17d6f6fb96128a6d51c0e838: KVM: arm64: Safety check PSTATE when entering guest and handle IL (2018-10-19 11:13:03 +0100) ---------------------------------------------------------------- KVM/arm updates for 4.20 - Improved guest IPA space support (32 to 52 bits) - RAS event delivery for 32bit - PMU fixes - Guest entry hardening - Various cleanups ---------------------------------------------------------------- Christoffer Dall (1): KVM: arm64: Safety check PSTATE when entering guest and handle IL Dongjiu Geng (2): arm/arm64: KVM: Rename function kvm_arch_dev_ioctl_check_extension() arm/arm64: KVM: Enable 32 bits kvm vcpu events support Kristina Martsenko (1): vgic: Add support for 52bit guest physical address Marc Zyngier (2): KVM: arm/arm64: Rename kvm_arm_config_vm to kvm_arm_setup_stage2 KVM: arm64: Drop __cpu_init_stage2 on the VHE path Mark Rutland (1): KVM: arm64: Fix caching of host MDCR_EL2 value Punit Agrawal (1): KVM: arm/arm64: Ensure only THP is candidate for adjustment Suzuki K Poulose (17): kvm: arm/arm64: Fix stage2_flush_memslot for 4 level page table kvm: arm/arm64: Remove spurious WARN_ON kvm: arm64: Add helper for loading the stage2 setting for a VM arm64: Add a helper for PARange to physical shift conversion kvm: arm64: Clean up VTCR_EL2 initialisation kvm: arm/arm64: Allow arch specific configurations for VM kvm: arm64: Configure VTCR_EL2 per VM kvm: arm/arm64: Prepare for VM specific stage2 translations kvm: arm64: Prepare for dynamic stage2 page table layout kvm: arm64: Make stage2 page table layout dynamic kvm: arm64: Dynamic configuration of VTTBR mask kvm: arm64: Configure VTCR_EL2.SL0 per VM kvm: arm64: Switch to per VM IPA limit kvm: arm64: Add 52bit support for PAR to HPFAR conversoin kvm: arm64: Set a limit on the IPA size kvm: arm64: Limit the minimum number of page table levels kvm: arm64: Allow tuning the physical address size for VM zhong jiang (1): arm64: KVM: Remove some extra semicolon in kvm_target_cpu Documentation/virtual/kvm/api.txt | 31 ++++ arch/arm/include/asm/kvm_arm.h | 3 +- arch/arm/include/asm/kvm_host.h | 13 +- arch/arm/include/asm/kvm_mmu.h | 15 +- arch/arm/include/asm/stage2_pgtable.h | 54 +++--- arch/arm64/include/asm/cpufeature.h | 20 +++ arch/arm64/include/asm/kvm_arm.h | 155 +++++++++++++---- arch/arm64/include/asm/kvm_asm.h | 3 +- arch/arm64/include/asm/kvm_host.h | 18 +- arch/arm64/include/asm/kvm_hyp.h | 10 ++ arch/arm64/include/asm/kvm_mmu.h | 42 ++++- arch/arm64/include/asm/ptrace.h | 3 + arch/arm64/include/asm/stage2_pgtable-nopmd.h | 42 ----- arch/arm64/include/asm/stage2_pgtable-nopud.h | 39 ----- arch/arm64/include/asm/stage2_pgtable.h | 236 +++++++++++++++++++------- arch/arm64/kvm/guest.c | 6 +- arch/arm64/kvm/handle_exit.c | 7 + arch/arm64/kvm/hyp/Makefile | 1 - arch/arm64/kvm/hyp/hyp-entry.S | 16 +- arch/arm64/kvm/hyp/s2-setup.c | 90 ---------- arch/arm64/kvm/hyp/switch.c | 4 +- arch/arm64/kvm/hyp/sysreg-sr.c | 19 ++- arch/arm64/kvm/hyp/tlb.c | 4 +- arch/arm64/kvm/reset.c | 108 +++++++++++- include/linux/irqchip/arm-gic-v3.h | 5 + include/uapi/linux/kvm.h | 10 ++ virt/kvm/arm/arm.c | 26 ++- virt/kvm/arm/mmu.c | 128 +++++++------- virt/kvm/arm/vgic/vgic-its.c | 36 ++-- virt/kvm/arm/vgic/vgic-kvm-device.c | 2 +- virt/kvm/arm/vgic/vgic-mmio-v3.c | 2 - 31 files changed, 717 insertions(+), 431 deletions(-) delete mode 100644 arch/arm64/include/asm/stage2_pgtable-nopmd.h delete mode 100644 arch/arm64/include/asm/stage2_pgtable-nopud.h delete mode 100644 arch/arm64/kvm/hyp/s2-setup.c