KVM: SVM: CSV: Explicitly enable LBR Virtualization after succeed to … #362
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…RECEIVE_UPDATE_VMSA
hygon inclusion
category: feature
CVE: NA
---------------------------
Before the commit b7e4be0a224f ("KVM: SEV-ES: Delegate LBR
virtualization to the processor"), the LBR Virtualization is enabled
during init VMCB:
init_vmcb() -> sev_init_vmcb() -> sev_es_init_vmcb()
While the commit b7e4be0a224f ("KVM: SEV-ES: Delegate LBR
virtualization to the processor") enable LBR Virtualization after
succeed to LAUNCH_UPDATE_VMSA for each vCPUs. The process to enable LBR
Virtualization will not be executed in common code path. To ensure the
CSV2 guest to work properly after migrated to target machine, we should
explicitly to enable LBR Virtualization after succeed to
RECEIVE_UPDATE_VMSA for each vCPUs.
Fixes: b7e4be0a224f ("KVM: SEV-ES: Delegate LBR virtualization to the processor")
Signed-off-by: hanliyang <hanliyang@hygon.cn>
deepin pr auto review关键摘要:
是否建议立即修改:
|
|
[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: The full list of commands accepted by this bot can be found here.
Needs approval from an approver in each of these files:
Approvers can indicate their approval by writing |
Avenger-285714
requested review from
MingcongBai,
matrix-wsk,
deepin-ci-robot and
deepin-admin-bot
Avenger-285714
merged commit dd5139c
into
deepin-community:linux-6.6.y
4 of 6 checks passed
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
…RECEIVE_UPDATE_VMSA
hygon inclusion
category: feature
CVE: NA
Before the commit b7e4be0a224f ("KVM: SEV-ES: Delegate LBR virtualization to the processor"), the LBR Virtualization is enabled during init VMCB:
init_vmcb() -> sev_init_vmcb() -> sev_es_init_vmcb()
While the commit b7e4be0a224f ("KVM: SEV-ES: Delegate LBR virtualization to the processor") enable LBR Virtualization after succeed to LAUNCH_UPDATE_VMSA for each vCPUs. The process to enable LBR Virtualization will not be executed in common code path. To ensure the CSV2 guest to work properly after migrated to target machine, we should explicitly to enable LBR Virtualization after succeed to RECEIVE_UPDATE_VMSA for each vCPUs.
Fixes: b7e4be0a224f ("KVM: SEV-ES: Delegate LBR virtualization to the processor")