Re: [PATCH non-atomic-injection] KVM: Initialize rip for real mode interrupt injection

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 On 08/18/2010 05:32 PM, Mohammed Gamal wrote:
On Wed, Aug 18, 2010 at 5:11 PM, Avi Kivity<avi@xxxxxxxxxx>  wrote:
  On 08/18/2010 05:09 PM, Avi Kivity wrote:
  On 08/18/2010 03:46 PM, Mohammed Gamal wrote:
On Wed, Aug 18, 2010 at 10:36 AM, Avi Kivity<avi@xxxxxxxxxx>    wrote:
Signed-off-by: Avi Kivity<avi@xxxxxxxxxx>
---
  arch/x86/kvm/x86.c |    1 +
  1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index f6a31a1..e2b0e36 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3967,6 +3967,7 @@ int kvm_inject_realmode_interrupt(struct kvm_vcpu
*vcpu, int irq)

        vcpu->arch.emulate_ctxt.decode.op_bytes = 2;
        vcpu->arch.emulate_ctxt.decode.ad_bytes = 2;
+       vcpu->arch.emulate_ctxt.decode.eip = kvm_rip_read(vcpu);
I think it'd make more sense to make
vcpu->arch.emulate_ctxt.decode.eip =  vcpu->arch.emulate_ctxt.eip, as
we already initlialize the emulation context eip. It's not going to
make any real difference, but it's more readable this way I suppose,
and is symmetric to the assignment of the emulation context eip value
after the call to emulate_int_real()
Right, patch updated.

btw, with the other fixes in non-atomic-injection the bios is able to boot
  up to the "no bootable device" message.
Did u try running it with any actual guests?

I did, the disk is not recognized, so something's still broken.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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