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6d59d7a9f5
linux/arch/x86/kvm
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Linus Torvalds 6d59d7a9f5 i387: don't ever touch TS_USEDFPU directly, use helper functions 
This creates three helper functions that do the TS_USEDFPU accesses, and
makes everybody that used to do it by hand use those helpers instead.

In addition, there's a couple of helper functions for the "change both
CR0.TS and TS_USEDFPU at the same time" case, and the places that do
that together have been changed to use those.  That means that we have
fewer random places that open-code this situation.

The intent is partly to clarify the code without actually changing any
semantics yet (since we clearly still have some hard to reproduce bug in
this area), but also to make it much easier to use another approach
entirely to caching the CR0.TS bit for software accesses.

Right now we use a bit in the thread-info 'status' variable (this patch
does not change that), but we might want to make it a full field of its
own or even make it a per-cpu variable.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-16 13:33:12 -08:00
..
cpuid.c KVM: Expose the architectural performance monitoring CPUID leaf 2011-12-27 11:24:40 +02:00
cpuid.h KVM: Move cpuid code to new file 2011-12-27 11:21:49 +02:00
emulate.c KVM: x86: fix missing checks in syscall emulation 2012-02-01 11:43:40 +02:00
i8254.c KVM: x86: Consolidate PIT legacy test 2011-12-27 11:22:30 +02:00
i8254.h KVM: remove useless function declaration kvm_inject_pit_timer_irqs() 2011-05-11 07:57:09 -04:00
i8259.c KVM: drop bsp_vcpu pointer from kvm struct 2011-12-27 11:22:32 +02:00
irq.c KVM: fix typo in copyright notice 2010-10-24 10:53:14 +02:00
irq.h KVM: Intelligent device lookup on I/O bus 2011-09-25 19:17:59 +03:00
Kconfig KVM: Expose a version 2 architectural PMU to a guests 2011-12-27 11:24:29 +02:00
kvm_cache_regs.h KVM: MMU: Do not unconditionally read PDPTE from guest memory 2011-09-25 19:18:01 +03:00
kvm_timer.h KVM: emulate lapic tsc deadline timer for guest 2011-10-05 15:34:56 +02:00
lapic.c KVM: Expose kvm_lapic_local_deliver() 2011-12-27 11:23:39 +02:00
lapic.h KVM: Expose kvm_lapic_local_deliver() 2011-12-27 11:23:39 +02:00
Makefile KVM: Expose a version 2 architectural PMU to a guests 2011-12-27 11:24:29 +02:00
mmu_audit.c KVM: MMU: audit: inline audit function 2011-12-27 11:22:12 +02:00
mmu.c module_param: make bool parameters really bool (arch) 2012-01-13 09:32:18 +10:30
mmu.h KVM: MMU: mmio page fault support 2011-07-24 11:50:40 +03:00
mmutrace.h KVM: MMU: audit: replace mmu audit tracepoint with jump-label 2011-12-27 11:22:05 +02:00
paging_tmpl.h KVM: MMU: audit: replace mmu audit tracepoint with jump-label 2011-12-27 11:22:05 +02:00
pmu.c KVM: Expose a version 2 architectural PMU to a guests 2011-12-27 11:24:29 +02:00
svm.c KVM: SVM: Intercept RDPMC 2011-12-27 11:24:37 +02:00
timer.c KVM: x86: Simplify kvm timer handler 2011-12-27 11:17:05 +02:00
trace.h KVM: Use __print_symbolic() for vmexit tracepoints 2011-09-25 19:17:59 +03:00
tss.h KVM: x86: hardware task switching support 2008-04-27 12:00:39 +03:00
vmx.c i387: don't ever touch TS_USEDFPU directly, use helper functions 2012-02-16 13:33:12 -08:00
x86.c KVM: do not #GP on perf MSR writes when vPMU is disabled 2012-02-01 11:44:46 +02:00
x86.h KVM: Move cpuid code to new file 2011-12-27 11:21:49 +02:00