Messages in this thread | | | Date | Fri, 21 Jul 2023 23:42:04 +0800 | Subject | Re: [RFC PATCH v11 12/29] KVM: Add KVM_CREATE_GUEST_MEMFD ioctl() for guest-specific backing memory | From | Xiaoyao Li <> |
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On 7/21/2023 11:05 PM, Xiaoyao Li wrote: > On 7/19/2023 7:44 AM, Sean Christopherson wrote: >> @@ -6255,12 +6298,17 @@ int kvm_init(unsigned vcpu_size, unsigned >> vcpu_align, struct module *module) >> if (r) >> goto err_async_pf; >> + r = kvm_gmem_init(); >> + if (r) >> + goto err_gmem; >> + >> kvm_chardev_ops.owner = module; >> kvm_preempt_ops.sched_in = kvm_sched_in; >> kvm_preempt_ops.sched_out = kvm_sched_out; >> kvm_init_debug(); >> + kvm_gmem_init(); > > why kvm_gmem_init() needs to be called again? by mistake?
I'm sure it's a mistake.
I'm testing the gmem QEMU with this series. SW_PROTECTED_VM gets stuck in a loop in early OVMF code due to two shared page of OVMF get zapped and re-mapped infinitely. Removing the second call of kvm_gmem_init() can solve the issue, though I'm not sure about the reason.
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