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Jeremy Fitzhardinge 464d1a78fb [PATCH] i386: Convert i386 PDA code to use %fs ... Convert the PDA code to use %fs rather than %gs as the segment for per-processor data. This is because some processors show a small but measurable performance gain for reloading a NULL segment selector (as %fs generally is in user-space) versus a non-NULL one (as %gs generally is). On modern processors the difference is very small, perhaps undetectable. Some old AMD "K6 3D+" processors are noticably slower when %fs is used rather than %gs; I have no idea why this might be, but I think they're sufficiently rare that it doesn't matter much. This patch also fixes the math emulator, which had not been adjusted to match the changed struct pt_regs. [frederik.deweerdt@gmail.com: fixit with gdb] [mingo@elte.hu: Fix KVM too] Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Ian Campbell <Ian.Campbell@XenSource.com> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Zachary Amsden <zach@vmware.com> Cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org>		18 years ago
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Kconfig	…
Makefile	…
kvm.h	[PATCH] KVM: cpu hotplug support	18 years ago
kvm_main.c	[PATCH] KVM: Host suspend/resume support	18 years ago
kvm_svm.h	…
kvm_vmx.h	…
mmu.c	…
paging_tmpl.h	…
segment_descriptor.h	…
svm.c	[PATCH] KVM: cpu hotplug support	18 years ago
svm.h	…
vmx.c	[PATCH] i386: Convert i386 PDA code to use %fs	18 years ago
vmx.h	…
x86_emulate.c	…
x86_emulate.h	…