[PATCH v4 07/15] KVM: arm64: Support page-not-present notification

2021-08-14 Thread Gavin Shan
The requested page might be not resident in memory during the stage-2 page fault. For example, the requested page could be resident in swap device (file). In this case, disk I/O is issued in order to fetch the requested page and it could take tens of milliseconds, even hundreds of milliseconds in e

Re: [PATCH v4 07/15] KVM: arm64: Support page-not-present notification

2021-11-12 Thread Eric Auger
Hi Gavin, On 8/15/21 2:59 AM, Gavin Shan wrote: > The requested page might be not resident in memory during the stage-2 > page fault. For example, the requested page could be resident in swap > device (file). In this case, disk I/O is issued in order to fetch the > requested page and it could take

Re: [PATCH v4 07/15] KVM: arm64: Support page-not-present notification

2022-01-13 Thread Gavin Shan
Hi Eric, On 11/12/21 11:01 PM, Eric Auger wrote: On 8/15/21 2:59 AM, Gavin Shan wrote: The requested page might be not resident in memory during the stage-2 page fault. For example, the requested page could be resident in swap device (file). In this case, disk I/O is issued in order to fetch th