Alexey Kardashevskiy e1a1ef84cd KVM: PPC: Book3S: Allocate guest TCEs on demand too ... We already allocate hardware TCE tables in multiple levels and skip intermediate levels when we can, now it is a turn of the KVM TCE tables. Thankfully these are allocated already in 2 levels. This moves the table's last level allocation from the creating helper to kvmppc_tce_put() and kvm_spapr_tce_fault(). Since such allocation cannot be done in real mode, this creates a virtual mode version of kvmppc_tce_put() which handles allocations. This adds kvmppc_rm_ioba_validate() to do an additional test if the consequent kvmppc_tce_put() needs a page which has not been allocated; if this is the case, we bail out to virtual mode handlers. The allocations are protected by a new mutex as kvm->lock is not suitable for the task because the fault handler is called with the mmap_sem held but kvmhv_setup_mmu() locks kvm->lock and mmap_sem in the reverse order. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>		2019-04-30 14:43:13 +10:00
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asm	KVM: PPC: Book3S: Allocate guest TCEs on demand too	2019-04-30 14:43:13 +10:00
uapi/asm	Kbuild updates for v5.1 (2nd)	2019-03-17 13:25:26 -07:00