mirror of
https://github.com/torvalds/linux.git
synced 2026-09-23 22:14:03 +02:00
2131c4f763
Rework guest_memfd's prepare() hook into a more accurate make_private(), and rework its Kconfig from PREPARE to a more generic CONVERT. This will allow x86 to share (pun intended) a kvm_x86_ops.gmem_make_shared() hook between the "convert to shared" and "reclaim" flows, which are one and the same for SNP. No functional change intended. Reviewed-by: Ackerley Tng <ackerleytng@google.com> Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev> Link: https://patch.msgid.link/20260723210811.72720-8-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
125 lines
2.4 KiB
Plaintext
125 lines
2.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
# KVM common configuration items and defaults
|
|
|
|
config KVM_COMMON
|
|
bool
|
|
select EVENTFD
|
|
select INTERVAL_TREE
|
|
select MMU_NOTIFIER
|
|
select PREEMPT_NOTIFIERS
|
|
|
|
config HAVE_KVM_PFNCACHE
|
|
bool
|
|
|
|
config HAVE_KVM_IRQCHIP
|
|
bool
|
|
|
|
config HAVE_KVM_IRQ_ROUTING
|
|
bool
|
|
|
|
config HAVE_KVM_DIRTY_RING
|
|
bool
|
|
|
|
# Only strongly ordered architectures can select this, as it doesn't
|
|
# put any explicit constraint on userspace ordering. They can also
|
|
# select the _ACQ_REL version.
|
|
config HAVE_KVM_DIRTY_RING_TSO
|
|
bool
|
|
select HAVE_KVM_DIRTY_RING
|
|
depends on X86
|
|
|
|
# Weakly ordered architectures can only select this, advertising
|
|
# to userspace the additional ordering requirements.
|
|
config HAVE_KVM_DIRTY_RING_ACQ_REL
|
|
bool
|
|
select HAVE_KVM_DIRTY_RING
|
|
|
|
# Allow enabling both the dirty bitmap and dirty ring. Only architectures
|
|
# that need to dirty memory outside of a vCPU context should select this.
|
|
config NEED_KVM_DIRTY_RING_WITH_BITMAP
|
|
bool
|
|
depends on HAVE_KVM_DIRTY_RING
|
|
|
|
config KVM_MMIO
|
|
bool
|
|
|
|
config KVM_ASYNC_PF
|
|
bool
|
|
|
|
# Toggle to switch between direct notification and batch job
|
|
config KVM_ASYNC_PF_SYNC
|
|
bool
|
|
|
|
config HAVE_KVM_MSI
|
|
bool
|
|
|
|
config HAVE_KVM_READONLY_MEM
|
|
bool
|
|
|
|
config HAVE_KVM_CPU_RELAX_INTERCEPT
|
|
bool
|
|
|
|
config KVM_VFIO
|
|
bool
|
|
|
|
config HAVE_KVM_INVALID_WAKEUPS
|
|
bool
|
|
|
|
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)
|
|
|
|
config HAVE_KVM_IRQ_BYPASS
|
|
tristate
|
|
select IRQ_BYPASS_MANAGER
|
|
|
|
config HAVE_KVM_VCPU_RUN_PID_CHANGE
|
|
bool
|
|
|
|
config HAVE_KVM_NO_POLL
|
|
bool
|
|
|
|
config VIRT_XFER_TO_GUEST_WORK
|
|
bool
|
|
|
|
config HAVE_KVM_PM_NOTIFIER
|
|
bool
|
|
|
|
config KVM_GENERIC_HARDWARE_ENABLING
|
|
bool
|
|
|
|
config KVM_ELIDE_TLB_FLUSH_IF_YOUNG
|
|
bool
|
|
|
|
config KVM_MMU_LOCKLESS_AGING
|
|
bool
|
|
|
|
config KVM_GENERIC_MEMORY_ATTRIBUTES
|
|
bool
|
|
|
|
config KVM_GUEST_MEMFD
|
|
select XARRAY_MULTI
|
|
bool
|
|
|
|
config HAVE_KVM_ARCH_GMEM_CONVERT
|
|
bool
|
|
depends on KVM_GUEST_MEMFD
|
|
|
|
config HAVE_KVM_ARCH_GMEM_RECLAIM
|
|
bool
|
|
depends on KVM_GUEST_MEMFD
|
|
|
|
config HAVE_KVM_ARCH_GMEM_INVALIDATE
|
|
bool
|
|
depends on KVM_GUEST_MEMFD
|
|
|
|
config HAVE_KVM_ARCH_GMEM_POPULATE
|
|
bool
|
|
depends on KVM_GUEST_MEMFD
|