Re: [RFC PATCH v11 09/29] KVM: x86: Disallow hugepages when memory attributes are mixed
From: Sean Christopherson <seanjc@google.com>
Date: 2023-07-21 17:41:22
Also in:
kvm, kvm-riscv, kvmarm, linux-fsdevel, linux-mips, linux-mm, linux-riscv, linux-security-module, linuxppc-dev, lkml
On Fri, Jul 21, 2023, Paolo Bonzini wrote:
On 7/19/23 01:44, Sean Christopherson wrote:quoted
+static bool range_has_attrs(struct kvm *kvm, gfn_t start, gfn_t end, + unsigned long attrs) +{ + XA_STATE(xas, &kvm->mem_attr_array, start); + unsigned long index; + bool has_attrs; + void *entry; + + rcu_read_lock(); + + if (!attrs) { + has_attrs = !xas_find(&xas, end); + goto out; + } + + has_attrs = true; + for (index = start; index < end; index++) { + do { + entry = xas_next(&xas); + } while (xas_retry(&xas, entry)); + + if (xas.xa_index != index || xa_to_value(entry) != attrs) { + has_attrs = false; + break; + } + } + +out: + rcu_read_unlock(); + return has_attrs; +} +Can you move this function to virt/kvm/kvm_main.c?
Ah, yeah, that's a good idea. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel