Bug 1969239
Summary: | Win2022 guest can't boot when ept is disabled | ||
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Product: | Red Hat Enterprise Linux Advanced Virtualization | Reporter: | Yumei Huang <yuhuang> |
Component: | qemu-kvm | Assignee: | Vitaly Kuznetsov <vkuznets> |
qemu-kvm sub component: | General | QA Contact: | Yumei Huang <yuhuang> |
Status: | CLOSED DUPLICATE | Docs Contact: | |
Severity: | medium | ||
Priority: | medium | CC: | chayang, juzhang, lijin, mlevitsk, virt-maint, vkuznets, yvugenfi |
Version: | 8.5 | ||
Target Milestone: | rc | ||
Target Release: | 8.5 | ||
Hardware: | x86_64 | ||
OS: | Windows | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | If docs needed, set a value | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2021-06-16 13:00:44 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | |||
Bug Blocks: | 1968315, 2057757 |
Description
Yumei Huang
2021-06-08 03:32:17 UTC
Related to BZ#1906634. In any case for Server SKUs - MS requires EPT support in CPUs - https://docs.microsoft.com/en-us/windows-server/get-started-19/sys-reqs-19 Minimum: 1.4 GHz 64-bit processor Compatible with x64 instruction set Supports NX and DEP Supports CMPXCHG16b, LAHF/SAHF, and PrefetchW Supports Second Level Address Translation (EPT or NPT) (In reply to Yvugenfi from comment #1) > Related to BZ#1906634. > > In any case for Server SKUs - MS requires EPT support in CPUs - > https://docs.microsoft.com/en-us/windows-server/get-started-19/sys-reqs-19 > > Minimum: > 1.4 GHz 64-bit processor > Compatible with x64 instruction set > Supports NX and DEP > Supports CMPXCHG16b, LAHF/SAHF, and PrefetchW > Supports Second Level Address Translation (EPT or NPT) Thanks for the information. But I only hit the issue with Win2022 guest, Win2019 guest works fine. Could it be something else that goes wrong? (In reply to Yumei Huang from comment #2) > (In reply to Yvugenfi from comment #1) > > Related to BZ#1906634. > > > > In any case for Server SKUs - MS requires EPT support in CPUs - > > https://docs.microsoft.com/en-us/windows-server/get-started-19/sys-reqs-19 > > > > Minimum: > > 1.4 GHz 64-bit processor > > Compatible with x64 instruction set > > Supports NX and DEP > > Supports CMPXCHG16b, LAHF/SAHF, and PrefetchW > > Supports Second Level Address Translation (EPT or NPT) > > Thanks for the information. But I only hit the issue with Win2022 guest, > Win2019 guest works fine. Strange, BZ#1906634 was opened on Windows Server 2019. > Could it be something else that goes wrong? Could be. That's why we are not closing BZ#1906634 and continue to investigate Meirav - windows guest issue although it looks like Yan is already involved. BTW, seems the issue is not 100% reproducible. Sometimes windows 2022 guest can boot up without error and works fine when ept=0. |