On 06/14/2012 04:53 PM, Michael S. Tsirkin wrote: > Document the new EOI MSR. Couldn't decide whether this change belongs > conceptually on guest or host side, so a separate patch. > > Signed-off-by: Michael S. Tsirkin <m...@redhat.com> > --- > Documentation/virtual/kvm/msr.txt | 32 ++++++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/Documentation/virtual/kvm/msr.txt > b/Documentation/virtual/kvm/msr.txt > index 96b41bd..6ae5a85 100644 > --- a/Documentation/virtual/kvm/msr.txt > +++ b/Documentation/virtual/kvm/msr.txt > @@ -223,3 +223,35 @@ MSR_KVM_STEAL_TIME: 0x4b564d03 > steal: the amount of time in which this vCPU did not run, in > nanoseconds. Time during which the vcpu is idle, will not be > reported as steal time. > + > +MSR_KVM_EOI_EN: 0x4b564d04 > + data: Bit 0 is 1 when PV end of interrupt is enabled on the vcpu; 0 > + when disabled. When enabled, bits 63-1 hold 2-byte aligned physical > address > + of a 2 byte memory area which must be in guest RAM and must be zeroed.
2 byte aligned means we must never access it on the host with a >2 byte instruction, or we risk touching unmapped memory. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
