From: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
To: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"seanjc@google.com" <seanjc@google.com>,
"Zhao, Yan Y" <yan.y.zhao@intel.com>
Cc: "isaku.yamahata@gmail.com" <isaku.yamahata@gmail.com>,
"x86@kernel.org" <x86@kernel.org>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"binbin.wu@linux.intel.com" <binbin.wu@linux.intel.com>,
"Li, Xiaoyao" <xiaoyao.li@intel.com>,
"Chatre, Reinette" <reinette.chatre@intel.com>,
"Hunter, Adrian" <adrian.hunter@intel.com>,
"Lindgren, Tony" <tony.lindgren@intel.com>,
"dmatlack@google.com" <dmatlack@google.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Yamahata, Isaku" <isaku.yamahata@intel.com>,
"Huang, Kai" <kai.huang@intel.com>,
"nik.borisov@suse.com" <nik.borisov@suse.com>
Subject: Re: [RFC PATCH 2/2] KVM: TDX: Kick off vCPUs when SEAMCALL is busy during TD page removal
Date: Tue, 26 Nov 2024 00:47:42 +0000 [thread overview]
Message-ID: <0a99ef415e06ecd30b1c40b93bdec5923b9585f2.camel@intel.com> (raw)
In-Reply-To: <20241121115703.26381-1-yan.y.zhao@intel.com>
On Thu, 2024-11-21 at 19:57 +0800, Yan Zhao wrote:
>
> +static void tdx_no_vcpus_enter_start(struct kvm *kvm)
> +{
I wonder if an mmu write lock assert here would be excessive.
> + kvm_make_all_cpus_request(kvm, KVM_REQ_NO_VCPU_ENTER_INPROGRESS);
> +}
> +
> +static void tdx_no_vcpus_enter_stop(struct kvm *kvm)
> +{
> + struct kvm_vcpu *vcpu;
> + unsigned long i;
> +
> + kvm_for_each_vcpu(i, vcpu, kvm)
> + kvm_clear_request(KVM_REQ_NO_VCPU_ENTER_INPROGRESS, vcpu);
> +}
> +
next prev parent reply other threads:[~2024-11-26 0:47 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-12 7:33 [PATCH v2 00/24] TDX MMU Part 2 Yan Zhao
2024-11-12 7:34 ` [PATCH v2 01/24] KVM: x86/mmu: Implement memslot deletion for TDX Yan Zhao
2024-11-12 7:34 ` [PATCH v2 02/24] KVM: x86/tdp_mmu: Add a helper function to walk down the TDP MMU Yan Zhao
2024-11-12 7:35 ` [PATCH v2 03/24] KVM: x86/mmu: Do not enable page track for TD guest Yan Zhao
2024-11-12 7:35 ` [PATCH v2 04/24] KVM: VMX: Split out guts of EPT violation to common/exposed function Yan Zhao
2024-11-12 7:35 ` [PATCH v2 05/24] KVM: VMX: Teach EPT violation helper about private mem Yan Zhao
2024-11-12 7:35 ` [PATCH v2 06/24] KVM: TDX: Add accessors VMX VMCS helpers Yan Zhao
2024-11-12 7:36 ` [PATCH v2 07/24] KVM: TDX: Add load_mmu_pgd method for TDX Yan Zhao
2024-11-12 7:36 ` [PATCH v2 08/24] KVM: TDX: Set gfn_direct_bits to shared bit Yan Zhao
2024-11-12 7:36 ` [PATCH v2 09/24] x86/virt/tdx: Add SEAMCALL wrapper tdh_mem_sept_add() to add SEPT pages Yan Zhao
2024-11-12 7:36 ` [PATCH v2 10/24] x86/virt/tdx: Add SEAMCALL wrappers to add TD private pages Yan Zhao
2024-11-12 7:36 ` [PATCH v2 11/24] x86/virt/tdx: Add SEAMCALL wrappers to manage TDX TLB tracking Yan Zhao
2024-11-12 7:36 ` [PATCH v2 12/24] x86/virt/tdx: Add SEAMCALL wrappers to remove a TD private page Yan Zhao
2024-11-12 7:37 ` [PATCH v2 13/24] x86/virt/tdx: Add SEAMCALL wrappers for TD measurement of initial contents Yan Zhao
2024-11-12 7:37 ` [PATCH v2 14/24] KVM: TDX: Require TDP MMU and mmio caching for TDX Yan Zhao
2024-11-12 7:37 ` [PATCH v2 15/24] KVM: x86/mmu: Add setter for shadow_mmio_value Yan Zhao
2024-11-12 7:37 ` [PATCH v2 16/24] KVM: TDX: Set per-VM shadow_mmio_value to 0 Yan Zhao
2024-11-12 7:37 ` [PATCH v2 17/24] KVM: TDX: Handle TLB tracking for TDX Yan Zhao
2024-11-12 7:38 ` [PATCH v2 18/24] KVM: TDX: Implement hooks to propagate changes of TDP MMU mirror page table Yan Zhao
2024-11-12 7:38 ` [PATCH v2 19/24] KVM: TDX: Implement hook to get max mapping level of private pages Yan Zhao
2024-11-12 7:38 ` [PATCH v2 20/24] KVM: x86/mmu: Export kvm_tdp_map_page() Yan Zhao
2024-11-12 7:38 ` [PATCH v2 21/24] KVM: TDX: Add an ioctl to create initial guest memory Yan Zhao
2024-11-27 18:08 ` Nikolay Borisov
2024-11-28 2:20 ` Yan Zhao
2024-11-12 7:38 ` [PATCH v2 22/24] KVM: TDX: Finalize VM initialization Yan Zhao
2024-12-24 14:31 ` Paolo Bonzini
2025-01-07 7:44 ` Yan Zhao
2025-01-07 14:02 ` Paolo Bonzini
2025-01-08 2:18 ` Yan Zhao
2024-11-12 7:38 ` [PATCH v2 23/24] KVM: TDX: Handle vCPU dissociation Yan Zhao
2024-11-12 7:39 ` [PATCH v2 24/24] [HACK] KVM: TDX: Retry seamcall when TDX_OPERAND_BUSY with operand SEPT Yan Zhao
2024-11-21 11:51 ` [RFC PATCH 0/2] SEPT SEAMCALL retry proposal Yan Zhao
2024-11-21 11:56 ` [RFC PATCH 1/2] KVM: TDX: Retry in TDX when installing TD private/sept pages Yan Zhao
2024-11-21 11:57 ` [RFC PATCH 2/2] KVM: TDX: Kick off vCPUs when SEAMCALL is busy during TD page removal Yan Zhao
2024-11-26 0:47 ` Edgecombe, Rick P [this message]
2024-11-26 6:39 ` Yan Zhao
2024-12-17 23:29 ` Sean Christopherson
2024-12-18 5:45 ` Yan Zhao
2024-12-18 16:10 ` Sean Christopherson
2024-12-19 1:52 ` Yan Zhao
2024-12-19 2:39 ` Sean Christopherson
2024-12-19 3:03 ` Yan Zhao
2024-11-26 0:46 ` [RFC PATCH 0/2] SEPT SEAMCALL retry proposal Edgecombe, Rick P
2024-11-26 6:24 ` Yan Zhao
2024-12-13 1:01 ` Yan Zhao
2024-12-17 17:00 ` Edgecombe, Rick P
2024-12-17 23:18 ` Sean Christopherson
2024-12-10 18:21 ` [PATCH v2 00/24] TDX MMU Part 2 Paolo Bonzini
2024-12-24 14:33 ` Paolo Bonzini
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