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| author | Isaku Yamahata <isaku.yamahata@intel.com> | 2024-04-10 15:07:28 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-07-12 11:17:35 -0400 |
| commit | bc1a5cd002116552db4c3541e91f8a5b1b0cf65d (patch) | |
| tree | 9b31b2fe69d67e53c74a15eda904c59e6aa203f2 /virt/kvm/Kconfig | |
| parent | 9aed7a6c0b591801177c90137df43f244e2af9bb (diff) | |
| download | lwn-bc1a5cd002116552db4c3541e91f8a5b1b0cf65d.tar.gz lwn-bc1a5cd002116552db4c3541e91f8a5b1b0cf65d.zip | |
KVM: Add KVM_PRE_FAULT_MEMORY vcpu ioctl to pre-populate guest memory
Add a new ioctl KVM_PRE_FAULT_MEMORY in the KVM common code. It iterates on the
memory range and calls the arch-specific function. The implementation is
optional and enabled by a Kconfig symbol.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Message-ID: <819322b8f25971f2b9933bfa4506e618508ad782.1712785629.git.isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt/kvm/Kconfig')
| -rw-r--r-- | virt/kvm/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index 754c6c923427..b14e14cdbfb9 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -67,6 +67,9 @@ config HAVE_KVM_INVALID_WAKEUPS config KVM_GENERIC_DIRTYLOG_READ_PROTECT bool +config KVM_GENERIC_PRE_FAULT_MEMORY + bool + config KVM_COMPAT def_bool y depends on KVM && COMPAT && !(S390 || ARM64 || RISCV) |