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KVM: VMX: Use vmx to inject real-mode interrupts
authorAvi Kivity <avi@qumranet.com>
Thu, 8 Nov 2007 16:19:20 +0000 (18:19 +0200)
committerAvi Kivity <avi@qumranet.com>
Wed, 30 Jan 2008 15:53:00 +0000 (17:53 +0200)
commit9c5623e3e42e94927d02a6693875badf15692970
tree74ea5711aa9884aa5bee97282c52c32659aca53atree | snapshot (tar.gz zip)
parent12264760e46077a65c1240ac0b27dfa34b402158commit | diff
KVM: VMX: Use vmx to inject real-mode interrupts

Instead of injecting real-mode interrupts by writing the interrupt frame into
guest memory, abuse vmx by injecting a software interrupt.  We need to
pretend the software interrupt instruction had a length > 0, so we have to
adjust rip backward.

This lets us not to mess with writing guest memory, which is complex and also
sleeps.

Signed-off-by: Avi Kivity <avi@qumranet.com>
drivers/kvm/vmx.c diff | blob | blame | history
drivers/kvm/vmx.h diff | blob | blame | history