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12 Jun 2024 16:13:29 -0700 Date: Wed, 12 Jun 2024 16:13:29 -0700 From: Isaku Yamahata To: Paolo Bonzini Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Isaku Yamahata , Michael Roth , isaku.yamahata@linux.intel.com Subject: Re: [PATCH] KVM: interrupt kvm_gmem_populate() on signals Message-ID: <20240612231329.GA1900928@ls.amr.corp.intel.com> References: <20240611102243.47904-1-pbonzini@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20240611102243.47904-1-pbonzini@redhat.com> On Tue, Jun 11, 2024 at 06:22:43AM -0400, Paolo Bonzini wrote: > kvm_gmem_populate() is a potentially lengthy operation that can involve > multiple calls to the firmware. Interrupt it if a signal arrives. What about cond_resched() in the loop? kvm_gmem_allocate() has both. The change itself looks good for TDX because KVM_TDX_INIT_MEMREGION checks the signal. I can drop the duplicated check. Similar to cond_resched(). -- Isaku Yamahata