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Commit a7f2d786 authored by Alexis Dambricourt's avatar Alexis Dambricourt Committed by Paolo Bonzini
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KVM: MTRR: fix fixed MTRR segment look up

This fixes the slow-down of VM running with pci-passthrough, since some MTRR
range changed from MTRR_TYPE_WRBACK to MTRR_TYPE_UNCACHABLE.  Memory in the
0K-640K range was incorrectly treated as uncacheable.

Fixes: f7bfb57b
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=107561


Cc: qemu-stable@nongnu.org
Signed-off-by: default avatarAlexis Dambricourt <alexis.dambricourt@gmail.com>
[Use correct BZ for "Fixes" annotation.  - Paolo]
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 6fd08621
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