This patchset changes interrupt injection to be done from normal process
context instead of interrupts disabled context. This is useful for real
mode interrupt injection on Intel without the current hacks (injecting as
a software interrupt of a vm86 task), reducing latencies, and later, for
allowing nested virtualization code to use kvm_read_guest()/kvm_write_guest()
instead of kmap() to access the guest vmcb/vmcs.
Seems to survive a hack that cancels every 16th entry, after injection has
already taken place.
TODO: svm support, more complicated due to debug and nsvm handling
Avi Kivity (3):
KVM: VMX: Split up vmx_complete_interrupts()
KVM: VMX: Parameterize vmx_complete_interrupts() for both exit and
entry
KVM: Non-atomic interrupt injection
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/vmx.c | 64 +++++++++++++++++++++++++++++---------
arch/x86/kvm/x86.c | 27 ++++++++--------
3 files changed, 64 insertions(+), 28 deletions(-)
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