KVM: arm64: Alloc pkvm_hyp_vcpu using pKVM heap allocator

Transition the allocation of the hypervisor vCPU state structure
(pkvm_hyp_vcpu) from the host to the hypervisor using the new pKVM heap
allocator (hyp_alloc()).

Previously, the host was responsible for calculating the size of,
allocating, and donating memory for pkvm_hyp_vcpu during vCPU creation.
With the heap allocator in place, the hypervisor now allocates this
structure dynamically at EL2.

Use the pkvm_call_hyp_req() wrapper in the host to invoke
__pkvm_create_hyp_vcpu, which automatically handles any top-up requests
if the hypervisor runs out of heap memory during allocation.

Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Tested-by: Fuad Tabba <fuad.tabba@linux.dev>
Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Link: https://patch.msgid.link/20261001142849.3367614-15-vdonnefort@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>

0 files changed, 0 insertions, 0 deletions