On 4/16/25 11:41 PM, Steven Price wrote:
Previously machine type was used purely for specifying the physical
address size of the guest. Reserve the higher bits to specify an ARM
specific machine type and declare a new type 'KVM_VM_TYPE_ARM_REALM'
used to create a realm guest.
Reviewed-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
Signed-off-by: Steven Price <steven.price@xxxxxxx>
---
Changes since v7:
* Add some documentation explaining the new machine type.
Changes since v6:
* Make the check for kvm_rme_is_available more visible and report an
error code of -EPERM (instead of -EINVAL) to make it explicit that
the kernel supports RME, but the platform doesn't.
---
Documentation/virt/kvm/api.rst | 16 ++++++++++++++--
arch/arm64/kvm/arm.c | 15 +++++++++++++++
arch/arm64/kvm/mmu.c | 3 ---
include/uapi/linux/kvm.h | 19 +++++++++++++++----
4 files changed, 44 insertions(+), 9 deletions(-)
Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>
