Displaying 2 results from an estimated 2 matches for "svm_intr_assist".
2006 Sep 29
0
[SVM][PATCH] Remove unnecessary intr assist guest iF check
AMD-V does not require the delaying of interrupt injection if the guest
IF_FLAG disallows interrupts. Remove the code in svm_intr_assist() that
was checking the guest IF in eflags.
This patch fixes the problem with HVM Windows guests, with observing a
very slow timer countdown on the initial boot menu, when there is more
than one boot option. Kbd response in this same Windows boot menu is
also acceptably responsive with this patch...
2006 Oct 19
0
[HVM][SVM][PATCH][1/2] VINTR intercept signal
...n an interrupt shadow, we create a ''fake''
virtual interrupt to inject while also enabling the VINTR intercept.
When the guest _can_ take interrupts, the hypervisor will #VMEXIT on
VINTR. The VINTR exit handler then clears the VINTR intercept bit and
clears the V_IRQ bit so that svm_intr_assist() can inject a legitimate
interrupt.
Patch 2/2 -
Add flag to indicate that an exception event needs injecting, and to
delay
the ext interrupt injection.
Remove unnecessary check of RFLAGS.IF for ExtInt injection.
These apply cleanly to xen-unstable c/s 11831.
Please apply to xen-unstable.hg.
We...