From db358796d95886f9715d1c91e9ae866c005511d7 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 26 Jan 2010 16:30:06 +0200 Subject: [PATCH] KVM: Plan obsolescence of kernel allocated slots, paravirt mmu These features are unused by modern userspace and can go away. Paravirt mmu needs to stay a little longer for live migration. Signed-off-by: Avi Kivity --- Documentation/feature-removal-schedule.txt | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index ea40149..db20527 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -538,3 +538,33 @@ Why: Duplicate functionality with the gspca_zc3xx driver, zc0301 only sensors) wich are also supported by the gspca_zc3xx driver (which supports 53 USB-ID's in total) Who: Hans de Goede + +---------------------------- + +What: KVM memory aliases support +When: July 2010 +Why: Memory aliasing support is used for speeding up guest vga access + through the vga windows. + + Modern userspace no longer uses this feature, so it's just bitrotted + code and can be removed with no impact. +Who: Avi Kivity + +---------------------------- + +What: KVM kernel-allocated memory slots +When: July 2010 +Why: Since 2.6.25, kvm supports user-allocated memory slots, which are + much more flexible than kernel-allocated slots. All current userspace + supports the newer interface and this code can be removed with no + impact. +Who: Avi Kivity + +---------------------------- + +What: KVM paravirt mmu host support +When: January 2011 +Why: The paravirt mmu host support is slower than non-paravirt mmu, both + on newer and older hardware. It is already not exposed to the guest, + and kept only for live migration purposes. +Who: Avi Kivity -- 1.8.2.3