linux/virt/kvm
Sean Christopherson d2042d8f96 KVM: Rework KVM_CAP_GUEST_MEMFD_MMAP into KVM_CAP_GUEST_MEMFD_FLAGS
Rework the not-yet-released KVM_CAP_GUEST_MEMFD_MMAP into a more generic
KVM_CAP_GUEST_MEMFD_FLAGS capability so that adding new flags doesn't
require a new capability, and so that developers aren't tempted to bundle
multiple flags into a single capability.

Note, kvm_vm_ioctl_check_extension_generic() can only return a 32-bit
value, but that limitation can be easily circumvented by adding e.g.
KVM_CAP_GUEST_MEMFD_FLAGS2 in the unlikely event guest_memfd supports more
than 32 flags.

Reviewed-by: Ackerley Tng <ackerleytng@google.com>
Tested-by: Ackerley Tng <ackerleytng@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20251003232606.4070510-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-10-10 14:25:22 -07:00
..
async_pf.c KVM: remove redundant __GFP_NOWARN 2025-08-19 11:51:13 -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: Clean up coalesced MMIO ring full check 2024-08-29 19:38:33 -07:00
coalesced_mmio.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dirty_ring.c KVM: Assert that slots_lock is held when resetting per-vCPU dirty rings 2025-06-20 13:41:04 -07:00
eventfd.c KVM: Export KVM-internal symbols for sub-modules only 2025-09-30 13:40:02 -04:00
guest_memfd.c KVM: Export KVM-internal symbols for sub-modules only 2025-09-30 13:40:02 -04:00
irqchip.c KVM: x86: Trigger I/O APIC route rescan in kvm_arch_irq_routing_update() 2025-06-20 13:52:41 -07:00
Kconfig KVM: Rename CONFIG_KVM_GENERIC_PRIVATE_MEM to CONFIG_HAVE_KVM_ARCH_GMEM_POPULATE 2025-08-27 04:35:00 -04:00
kvm_main.c KVM: Rework KVM_CAP_GUEST_MEMFD_MMAP into KVM_CAP_GUEST_MEMFD_FLAGS 2025-10-10 14:25:22 -07:00
kvm_mm.h KVM: Rename CONFIG_KVM_PRIVATE_MEM to CONFIG_KVM_GUEST_MEMFD 2025-08-27 04:34:59 -04:00
Makefile.kvm KVM: Rename CONFIG_KVM_PRIVATE_MEM to CONFIG_KVM_GUEST_MEMFD 2025-08-27 04:34:59 -04:00
pfncache.c KVM: pfncache: Precisely track refcounted pages 2024-10-25 12:57:59 -04:00
vfio.c VFIO: KVM: x86: Drop kvm_arch_{start,end}_assignment() 2025-06-25 09:51:33 -07:00
vfio.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00