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(parent: ca7a6ad) | patch
hw: i386: vapic: enable on WHPX with user-mode irqchip
authorMohamed Mediouni <mohamed@unpredictable.fr>
Thu, 26 Feb 2026 18:19:30 +0000 (19:19 +0100)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 27 Feb 2026 13:48:04 +0000 (14:48 +0100)
commit69dfc078a6f03ce643e050de6360887df6c3406c
tree07bc130035719168456897988cef4d13fd13df17tree | snapshot
parentca7a6add3bd20267f124ea8bed4391da8ee8e253commit | diff
hw: i386: vapic: enable on WHPX with user-mode irqchip

Alleviate a performance bottleneck on legacy Windows guests.

In my test setup, this makes Windows XP boot times be 20x faster
than they're otherwise.

Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
Link: https://lore.kernel.org/r/20260226181930.53170-4-mohamed@unpredictable.fr
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw/i386/vapic.c diff | blob | blame | history
Mirror of https://git.qemu.org/git/qemu.git