On 2012-12-07 20:51, Andrew Honig wrote:
I've noticed a memory leak that occurs in vmx.c.
In alloc_apic_access_page, it calls __kvm_set_memory_region(kvm,
kvm_userspace_mem, 0). __kvm_set_memory_region calls
kvm_arch_prepare_memory_region, which because the user_alloc parameter
is 0 will
From: Yang Zhang yang.z.zh...@intel.com
APIC virtualization is a new feature which can eliminate most of VM exit
when vcpu handle a interrupt:
APIC register virtualization:
APIC read access doesn't cause APIC-access VM exits.
APIC write becomes trap-like.
Virtual interrupt
- APIC read doesn't cause VM-Exit
- APIC write becomes trap-like
Signed-off-by: Yang Zhang yang.z.zh...@intel.com
---
arch/x86/include/asm/vmx.h |2 ++
arch/x86/kvm/lapic.c | 15 +++
arch/x86/kvm/lapic.h |2 ++
arch/x86/kvm/vmx.c | 33
Virtual interrupt delivery avoids KVM to inject vAPIC interrupts
manually, which is fully taken care of by the hardware. This needs
some special awareness into existing interrupr injection path:
- for pending interrupt, instead of direct injection, we may need
update architecture specific
basically to benefit from apicv, we need clear MSR bitmap for
corresponding x2apic MSRs:
0x800 - 0x8ff: no read intercept for apicv register virtualization
TPR,EOI,SELF-IPI: no write intercept for virtual interrupt delivery
Signed-off-by: Yang Zhang yang.z.zh...@intel.com
Signed-off-by:
Hi Alex,
first of all, I apologize for not reporting things properly. The vector
values that I see passed to request_threaded_irq() are not zeros. They are
unique IRQ values as you mentioned. I do not, however, see the
disabling-and-reenabling sequence as you wrote. The usual sequence for me
https://bugzilla.kernel.org/show_bug.cgi?id=42980
--- Comment #21 from Ian Pilcher arequip...@gmail.com 2012-12-08 20:50:25 ---
I just hit this again (I think). Pretty much out of the blue, with a bunch of
VMs running, including at least 2 nested guests.
I have been trying to get a kdump
From: Jason Wang jasow...@redhat.com
Date: Sat, 8 Dec 2012 01:04:54 +0800
This series is an update version (hope the final version) of multiqueue
(VIRTIO_NET_F_MQ) support in virtio-net driver. All previous comments were
addressed, the work were based on Krishna Kumar's work to let virtio-net
