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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-02-16 13:01:42 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-02-16 13:01:42 -0800 |
commit | 44024adb4aabefd275c6f9c00cac323473447dd5 (patch) | |
tree | 386e7975f0702729eaf0cd596c9b385825d7d257 /Documentation/virt/kvm/devices/vcpu.txt | |
parent | b982df72ef8404de99597f1d956b6137533b429a (diff) | |
parent | 120881b9e888689cbdb90a1dd1689684d8bc95f3 (diff) | |
download | linux-44024adb4aabefd275c6f9c00cac323473447dd5.tar.bz2 |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Bugfixes and improvements to selftests.
On top of this, Mauro converted the KVM documentation to rst format,
which was very welcome"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (44 commits)
docs: virt: guest-halt-polling.txt convert to ReST
docs: kvm: review-checklist.txt: rename to ReST
docs: kvm: Convert timekeeping.txt to ReST format
docs: kvm: Convert s390-diag.txt to ReST format
docs: kvm: Convert ppc-pv.txt to ReST format
docs: kvm: Convert nested-vmx.txt to ReST format
docs: kvm: Convert mmu.txt to ReST format
docs: kvm: Convert locking.txt to ReST format
docs: kvm: Convert hypercalls.txt to ReST format
docs: kvm: arm/psci.txt: convert to ReST
docs: kvm: convert arm/hyp-abi.txt to ReST
docs: kvm: Convert api.txt to ReST format
docs: kvm: convert devices/xive.txt to ReST
docs: kvm: convert devices/xics.txt to ReST
docs: kvm: convert devices/vm.txt to ReST
docs: kvm: convert devices/vfio.txt to ReST
docs: kvm: convert devices/vcpu.txt to ReST
docs: kvm: convert devices/s390_flic.txt to ReST
docs: kvm: convert devices/mpic.txt to ReST
docs: kvm: convert devices/arm-vgit.txt to ReST
...
Diffstat (limited to 'Documentation/virt/kvm/devices/vcpu.txt')
-rw-r--r-- | Documentation/virt/kvm/devices/vcpu.txt | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/Documentation/virt/kvm/devices/vcpu.txt b/Documentation/virt/kvm/devices/vcpu.txt deleted file mode 100644 index 6f3bd64a05b0..000000000000 --- a/Documentation/virt/kvm/devices/vcpu.txt +++ /dev/null @@ -1,76 +0,0 @@ -Generic vcpu interface -==================================== - -The virtual cpu "device" also accepts the ioctls KVM_SET_DEVICE_ATTR, -KVM_GET_DEVICE_ATTR, and KVM_HAS_DEVICE_ATTR. The interface uses the same struct -kvm_device_attr as other devices, but targets VCPU-wide settings and controls. - -The groups and attributes per virtual cpu, if any, are architecture specific. - -1. GROUP: KVM_ARM_VCPU_PMU_V3_CTRL -Architectures: ARM64 - -1.1. ATTRIBUTE: KVM_ARM_VCPU_PMU_V3_IRQ -Parameters: in kvm_device_attr.addr the address for PMU overflow interrupt is a - pointer to an int -Returns: -EBUSY: The PMU overflow interrupt is already set - -ENXIO: The overflow interrupt not set when attempting to get it - -ENODEV: PMUv3 not supported - -EINVAL: Invalid PMU overflow interrupt number supplied or - trying to set the IRQ number without using an in-kernel - irqchip. - -A value describing the PMUv3 (Performance Monitor Unit v3) overflow interrupt -number for this vcpu. This interrupt could be a PPI or SPI, but the interrupt -type must be same for each vcpu. As a PPI, the interrupt number is the same for -all vcpus, while as an SPI it must be a separate number per vcpu. - -1.2 ATTRIBUTE: KVM_ARM_VCPU_PMU_V3_INIT -Parameters: no additional parameter in kvm_device_attr.addr -Returns: -ENODEV: PMUv3 not supported or GIC not initialized - -ENXIO: PMUv3 not properly configured or in-kernel irqchip not - configured as required prior to calling this attribute - -EBUSY: PMUv3 already initialized - -Request the initialization of the PMUv3. If using the PMUv3 with an in-kernel -virtual GIC implementation, this must be done after initializing the in-kernel -irqchip. - - -2. GROUP: KVM_ARM_VCPU_TIMER_CTRL -Architectures: ARM,ARM64 - -2.1. ATTRIBUTE: KVM_ARM_VCPU_TIMER_IRQ_VTIMER -2.2. ATTRIBUTE: KVM_ARM_VCPU_TIMER_IRQ_PTIMER -Parameters: in kvm_device_attr.addr the address for the timer interrupt is a - pointer to an int -Returns: -EINVAL: Invalid timer interrupt number - -EBUSY: One or more VCPUs has already run - -A value describing the architected timer interrupt number when connected to an -in-kernel virtual GIC. These must be a PPI (16 <= intid < 32). Setting the -attribute overrides the default values (see below). - -KVM_ARM_VCPU_TIMER_IRQ_VTIMER: The EL1 virtual timer intid (default: 27) -KVM_ARM_VCPU_TIMER_IRQ_PTIMER: The EL1 physical timer intid (default: 30) - -Setting the same PPI for different timers will prevent the VCPUs from running. -Setting the interrupt number on a VCPU configures all VCPUs created at that -time to use the number provided for a given timer, overwriting any previously -configured values on other VCPUs. Userspace should configure the interrupt -numbers on at least one VCPU after creating all VCPUs and before running any -VCPUs. - -3. GROUP: KVM_ARM_VCPU_PVTIME_CTRL -Architectures: ARM64 - -3.1 ATTRIBUTE: KVM_ARM_VCPU_PVTIME_IPA -Parameters: 64-bit base address -Returns: -ENXIO: Stolen time not implemented - -EEXIST: Base address already set for this VCPU - -EINVAL: Base address not 64 byte aligned - -Specifies the base address of the stolen time structure for this VCPU. The -base address must be 64 byte aligned and exist within a valid guest memory -region. See Documentation/virt/kvm/arm/pvtime.txt for more information -including the layout of the stolen time structure. |