linux/virt/kvm
Sean Christopherson b67107a251 KVM: Add arch hooks for enabling/disabling virtualization
Add arch hooks that are invoked when KVM enables/disable virtualization.
x86 will use the hooks to register an "emergency disable" callback, which
is essentially an x86-specific shutdown notifier that is used when the
kernel is doing an emergency reboot/shutdown/kexec.

Add comments for the declarations to help arch code understand exactly
when the callbacks are invoked.  Alternatively, the APIs themselves could
communicate most of the same info, but kvm_arch_pre_enable_virtualization()
and kvm_arch_post_disable_virtualization() are a bit cumbersome, and make
it a bit less obvious that they are intended to be implemented as a pair.

Reviewed-by: Chao Gao <chao.gao@intel.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Acked-by: Kai Huang <kai.huang@intel.com>
Tested-by: Farrah Chen <farrah.chen@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20240830043600.127750-9-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-09-04 11:02:33 -04:00
..
async_pf.c Revert "KVM: async_pf: avoid recursive flushing of work items" 2024-06-03 08:55:55 -07:00
async_pf.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504 2019-06-19 17:09:56 +02:00
binary_stats.c KVM: stats: remove dead stores 2021-08-13 03:35:15 -04:00
coalesced_mmio.c KVM: destruct kvm_io_device while unregistering it from kvm_io_bus 2023-06-13 14:18:09 -07:00
coalesced_mmio.h
dirty_ring.c KVM: Discard zero mask with function kvm_dirty_ring_reset 2024-06-20 17:20:11 -04:00
eventfd.c KVM: eventfd: Use synchronize_srcu_expedited() on shutdown 2024-08-13 12:09:35 -04:00
guest_memfd.c KVM: guest_memfd: abstract how prepared folios are recorded 2024-07-26 14:46:15 -04:00
irqchip.c KVM: Setup empty IRQ routing when creating a VM 2024-06-11 14:18:34 -07:00
Kconfig KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_* 2024-07-26 14:46:14 -04:00
kvm_main.c KVM: Add arch hooks for enabling/disabling virtualization 2024-09-04 11:02:33 -04:00
kvm_mm.h KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start() 2024-04-11 12:58:53 -07:00
Makefile.kvm KVM: Add KVM_CREATE_GUEST_MEMFD ioctl() for guest-specific backing memory 2023-11-14 08:01:03 -05:00
pfncache.c KVM: Validate hva in kvm_gpc_activate_hva() to fix __kvm_gpc_refresh() WARN 2024-06-28 08:31:46 -07:00
vfio.c KVM: Treat the device list as an rculist 2024-04-25 13:19:55 +01:00
vfio.h