Messages in this thread | | | Subject | Re: [PART1 RFC v2 09/10] svm: Do not intercept CR8 when enable AVIC | From | Suravee Suthikulpanit <> | Date | Mon, 14 Mar 2016 13:09:00 +0700 |
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Hi
On 03/07/2016 10:39 PM, Paolo Bonzini wrote: >> + svm_x86_ops.update_cr8_intercept = NULL; >> > } else { >> > svm_x86_ops.deliver_posted_interrupt = NULL; >> > } >> >@@ -1116,7 +1119,8 @@ static void init_vmcb(struct vcpu_svm *svm) >> > set_cr_intercept(svm, INTERCEPT_CR0_WRITE); >> > set_cr_intercept(svm, INTERCEPT_CR3_WRITE); >> > set_cr_intercept(svm, INTERCEPT_CR4_WRITE); >> >- set_cr_intercept(svm, INTERCEPT_CR8_WRITE); >> >+ if (!avic) > Remember that AVIC enabled/disabled must be refreshed when the > .refresh_apicv_exec_ctrl callback is invoked, so it is not enough to use > the global variable. > > Paolo >
Good point. I'll fix this. By the way, how can we enable APICv only in certain VM? Does Qemu/KVM have any specific flags that we can pass to enable/disable this?
Thanks, Suravee
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