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5897297bc2
linux/arch/x86/kvm
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Avi Kivity 5897297bc2 KVM: VMX: Don't intercept MSR_KERNEL_GS_BASE 
Windows 2008 accesses this MSR often on context switch intensive workloads;
since we run in guest context with the guest MSR value loaded (so swapgs can
work correctly), we can simply disable interception of rdmsr/wrmsr for this
MSR.

A complication occurs since in legacy mode, we run with the host MSR value
loaded. In this case we enable interception.  This means we need two MSR
bitmaps, one for legacy mode and one for long mode.

Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10 11:48:21 +03:00
..
i8254.c KVM: Reset PIT irq injection logic when the PIT IRQ is unmasked 2009-03-24 11:03:03 +02:00
i8254.h KVM: Reset PIT irq injection logic when the PIT IRQ is unmasked 2009-03-24 11:03:03 +02:00
i8259.c KVM: fix sparse warnings: context imbalance 2009-03-24 11:03:13 +02:00
irq.c KVM: x86: fix LAPIC pending count calculation 2009-02-15 02:47:38 +02:00
irq.h KVM: make irq ack notifications aware of routing table 2009-03-24 11:03:08 +02:00
Kconfig Merge branch 'tracing/core-v2' into tracing-for-linus 2009-04-02 00:49:02 +02:00
kvm_cache_regs.h KVM: x86: accessors for guest registers 2008-10-15 10:13:57 +02:00
kvm_svm.h KVM: x86: Virtualize debug registers 2009-03-24 11:02:49 +02:00
lapic.c KVM: x86: fix LAPIC pending count calculation 2009-02-15 02:47:38 +02:00
lapic.h KVM: x86: fix LAPIC pending count calculation 2009-02-15 02:47:38 +02:00
Makefile KVM: change KVM to use IOMMU API 2009-01-03 14:11:07 +01:00
mmu.c KVM: Make paravirt tlb flush also reload the PAE PDPTRs 2009-05-25 20:00:50 +03:00
mmu.h KVM: is_long_mode() should check for EFER.LMA 2009-03-24 11:03:13 +02:00
paging_tmpl.h KVM: Fix missing smp tlb flush in invlpg 2009-03-24 11:03:14 +02:00
svm.c KVM: SVM: Remove port 80 passthrough 2009-05-11 14:40:51 +03:00
tss.h KVM: x86: hardware task switching support 2008-04-27 12:00:39 +03:00
vmx.c KVM: VMX: Don't intercept MSR_KERNEL_GS_BASE 2009-06-10 11:48:21 +03:00
x86_emulate.c KVM: x86 emulator: implement 'ret far' instruction (opcode 0xcb) 2009-03-24 11:03:01 +02:00
x86.c KVM: Fix PDPTR reloading on CR4 writes 2009-05-25 20:00:53 +03:00
x86.h KVM: Add a pending interrupt queue 2008-10-15 10:15:13 +02:00