diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 9 | ||||
| -rw-r--r-- | Documentation/kernel-parameters.txt | 3 | ||||
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 25 |
3 files changed, 25 insertions, 12 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 284b44259750..5575759b84ee 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -350,15 +350,6 @@ Who: anybody or Florian Mickler <florian@mickler.org> ---------------------------- -What: KVM paravirt mmu host support -When: January 2011 -Why: The paravirt mmu host support is slower than non-paravirt mmu, both - on newer and older hardware. It is already not exposed to the guest, - and kept only for live migration purposes. -Who: Avi Kivity <avi@redhat.com> - ----------------------------- - What: iwlwifi 50XX module parameters When: 3.0 Why: The "..50" modules parameters were used to configure 5000 series and diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 7b2e5c5eefa6..e69a461a06c2 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1178,9 +1178,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted. kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs. Default is 0 (don't ignore, but inject #GP) - kvm.oos_shadow= [KVM] Disable out-of-sync shadow paging. - Default is 1 (enabled) - kvm.mmu_audit= [KVM] This is a R/W parameter which allows audit KVM MMU at runtime. Default is 0 (off) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index e2a4b5287361..e1d94bf4056e 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1466,6 +1466,31 @@ is supported; 2 if the processor requires all virtual machines to have an RMA, or 1 if the processor can use an RMA but doesn't require it, because it supports the Virtual RMA (VRMA) facility. +4.64 KVM_NMI + +Capability: KVM_CAP_USER_NMI +Architectures: x86 +Type: vcpu ioctl +Parameters: none +Returns: 0 on success, -1 on error + +Queues an NMI on the thread's vcpu. Note this is well defined only +when KVM_CREATE_IRQCHIP has not been called, since this is an interface +between the virtual cpu core and virtual local APIC. After KVM_CREATE_IRQCHIP +has been called, this interface is completely emulated within the kernel. + +To use this to emulate the LINT1 input with KVM_CREATE_IRQCHIP, use the +following algorithm: + + - pause the vpcu + - read the local APIC's state (KVM_GET_LAPIC) + - check whether changing LINT1 will queue an NMI (see the LVT entry for LINT1) + - if so, issue KVM_NMI + - resume the vcpu + +Some guests configure the LINT1 NMI input to cause a panic, aiding in +debugging. + 5. The kvm_run structure Application code obtains a pointer to the kvm_run structure by |