x86/irq: KVM: Add helper for harvesting PIR to deduplicate KVM and posted MSIs

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Now that posted MSI and KVM harvesting of PIR is identical, extract the
code (and posted MSI's wonderful comment) to a common helper.

No functional change intended.

Link: https://lore.kernel.org/r/20250401163447.846608-9-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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This commit is contained in:

Sean Christopherson 2025-04-01 09:34:47 -07:00

parent baf68a0e3b

commit edaf3eded3

3 changed files with 69 additions and 61 deletions

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64

arch/x86/include/asm/posted_intr.h

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50

arch/x86/kernel/irq.c

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16

arch/x86/kvm/lapic.c

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