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| author | Sean Christopherson <[email protected]> | 2025-04-01 16:18:02 +0000 |
|---|---|---|
| committer | Sean Christopherson <[email protected]> | 2025-04-24 18:18:37 +0000 |
| commit | c364baad3e4f114284581c35d4b9006d59d2629a (patch) | |
| tree | 67e0eee7b4eea1f0b33334c7f9408285d4f7fa51 /rust/helpers/mutex.c | |
| parent | KVM: x86: Rescan I/O APIC routes after EOI interception for old routing (diff) | |
| download | kernel-c364baad3e4f114284581c35d4b9006d59d2629a.tar.gz kernel-c364baad3e4f114284581c35d4b9006d59d2629a.zip | |
KVM: VMX: Don't send UNBLOCK when starting device assignment without APICv
When starting device assignment, i.e. potential IRQ bypass, don't blast
KVM_REQ_UNBLOCK if APICv is disabled/unsupported. There is no need to
wake vCPUs if they can never use VT-d posted IRQs (sending UNBLOCK guards
against races being vCPUs blocking and devices starting IRQ bypass).
Opportunistically use kvm_arch_has_irq_bypass() for all relevant checks in
the VMX Posted Interrupt code so that all checks in KVM x86 incorporate
the same information (once AMD/AVIC is given similar treatment).
Cc: Yosry Ahmed <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>
Diffstat (limited to 'rust/helpers/mutex.c')
0 files changed, 0 insertions, 0 deletions