kernel.git/Documentation/virtual/kvm/devices, branch linux-4.13.y

Merge tag 'kvmarm-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2017-06-30T10:38:26Z

KVM/ARM updates for 4.13 - vcpu request overhaul - allow timer and PMU to have their interrupt number selected from userspace - workaround for Cavium erratum 30115 - handling of memory poisonning - the usual crop of fixes and cleanups Conflicts: arch/s390/include/asm/kvm_host.h

KVM: S390: add new group for flic

2017-06-22T10:41:07Z

In some cases, userspace needs to get or set all ais states for example migration. So we introduce a new group KVM_DEV_FLIC_AISM_ALL to provide interfaces to get or set the adapter-interruption-suppression mode for all ISCs. The corresponding documentation is updated. Signed-off-by: Yi Min Zhao Reviewed-by: Halil Pasic Signed-off-by: Christian Borntraeger

KVM: s390: CMMA tracking, ESSA emulation, migration mode

2017-06-22T10:41:05Z

* Add a migration state bitmap to keep track of which pages have dirty CMMA information. * Disable CMMA by default, so we can track if it's used or not. Enable it on first use like we do for storage keys (unless we are doing a migration). * Creates a VM attribute to enter and leave migration mode. * In migration mode, CMMA is disabled in the SIE block, so ESSA is always interpreted and emulated in software. * Free the migration state on VM destroy. Signed-off-by: Claudio Imbrenda Acked-by: Cornelia Huck Reviewed-by: Christian Borntraeger Signed-off-by: Christian Borntraeger

KVM: arm/arm64: Allow setting the timer IRQ numbers from userspace

2017-06-08T14:59:57Z

First we define an ABI using the vcpu devices that lets userspace set the interrupt numbers for the various timers on both the 32-bit and 64-bit KVM/ARM implementations. Second, we add the definitions for the groups and attributes introduced by the above ABI. (We add the PMU define on the 32-bit side as well for symmetry and it may get used some day.) Third, we set up the arch-specific vcpu device operation handlers to call into the timer code for anything related to the KVM_ARM_VCPU_TIMER_CTRL group. Fourth, we implement support for getting and setting the timer interrupt numbers using the above defined ABI in the arch timer code. Fifth, we introduce error checking upon enabling the arch timer (which is called when first running a VCPU) to check that all VCPUs are configured to use the same PPI for the timer (as mandated by the architecture) and that the virtual and physical timers are not configured to use the same IRQ number. Signed-off-by: Christoffer Dall Reviewed-by: Marc Zyngier

KVM: arm64: Allow creating the PMU without the in-kernel GIC

2017-06-08T14:59:44Z

Since we got support for devices in userspace which allows reporting the PMU overflow output status to userspace, we should actually allow creating the PMU on systems without an in-kernel irqchip, which in turn requires us to slightly clarify error codes for the ABI and move things around for the initialization phase. Signed-off-by: Christoffer Dall Reviewed-by: Marc Zyngier

Merge tag 'kvm-arm-for-v4.12-round2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2017-05-09T10:51:49Z

Second round of KVM/ARM Changes for v4.12. Changes include: - A fix related to the 32-bit idmap stub - A fix to the bitmask used to deode the operands of an AArch32 CP instruction - We have moved the files shared between arch/arm/kvm and arch/arm64/kvm to virt/kvm/arm - We add support for saving/restoring the virtual ITS state to userspace

KVM: arm/arm64: Clarification and relaxation to ITS save/restore ABI

2017-05-09T08:51:37Z

Clarify what is meant by the save/restore ABI only supporting virtual physical interrupts. Relax the requirement of the order that the collection entries are written in and be clear that there is no particular ordering enforced. Some cosmetic changes in the capitalization of ID names to align with the GICv3 manual and remove the empty line in the bottom of the patch. Signed-off-by: Christoffer Dall Reviewed-by: Eric Auger

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2017-05-08T19:37:56Z

Pull KVM updates from Paolo Bonzini: "ARM: - HYP mode stub supports kexec/kdump on 32-bit - improved PMU support - virtual interrupt controller performance improvements - support for userspace virtual interrupt controller (slower, but necessary for KVM on the weird Broadcom SoCs used by the Raspberry Pi 3) MIPS: - basic support for hardware virtualization (ImgTec P5600/P6600/I6400 and Cavium Octeon III) PPC: - in-kernel acceleration for VFIO s390: - support for guests without storage keys - adapter interruption suppression x86: - usual range of nVMX improvements, notably nested EPT support for accessed and dirty bits - emulation of CPL3 CPUID faulting generic: - first part of VCPU thread request API - kvm_stat improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits) kvm: nVMX: Don't validate disabled secondary controls KVM: put back #ifndef CONFIG_S390 around kvm_vcpu_kick Revert "KVM: Support vCPU-based gfn->hva cache" tools/kvm: fix top level makefile KVM: x86: don't hold kvm->lock in KVM_SET_GSI_ROUTING KVM: Documentation: remove VM mmap documentation kvm: nVMX: Remove superfluous VMX instruction fault checks KVM: x86: fix emulation of RSM and IRET instructions KVM: mark requests that need synchronization KVM: return if kvm_vcpu_wake_up() did wake up the VCPU KVM: add explicit barrier to kvm_vcpu_kick KVM: perform a wake_up in kvm_make_all_cpus_request KVM: mark requests that do not need a wakeup KVM: remove #ifndef CONFIG_S390 around kvm_vcpu_wake_up KVM: x86: always use kvm_make_request instead of set_bit KVM: add kvm_{test,clear}_request to replace {test,clear}_bit s390: kvm: Cpu model support for msa6, msa7 and msa8 KVM: x86: remove irq disablement around KVM_SET_CLOCK/KVM_GET_CLOCK kvm: better MWAIT emulation for guests KVM: x86: virtualize cpuid faulting ...

KVM: arm/arm64: Add GICV3 pending table save API documentation

2017-05-08T12:31:22Z

Add description for how to save GICV3 LPI pending bit into guest RAM pending tables. Signed-off-by: Eric Auger Acked-by: Christoffer Dall Acked-by: Marc Zyngier

KVM: arm/arm64: Add ITS save/restore API documentation

2017-05-08T12:30:49Z

Add description for how to access ITS registers and how to save/restore ITS tables into/from memory. Reviewed-by: Christoffer Dall Signed-off-by: Eric Auger