From: Joerg Roedel <joerg.roedel@amd.com>
To: Avi Kivity <avi@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>
Cc: Alexander Graf <agraf@suse.de>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/9 v3] KVM: Nested SVM fixes and tracepoint conversion
Date: Fri, 9 Oct 2009 16:08:24 +0200 [thread overview]
Message-ID: <1255097313-23267-1-git-send-email-joerg.roedel@amd.com> (raw)
Hi Avi, Marcelo,
this series of patches contains bugfixes for the Nested SVM code and the
conversion of Nested SVM debugging to tracepoints. The fixes are:
1) A patch Alex already sent (1/9) but which was not yet
applied. It fixes a lost event_inj problem when we emulate a
vmrun and a vmexit without entering the guest in the
meantime.
2) The patch 2/9 fixes a schedule() while atomic bug in the
Nested SVM code. The KVM interrupt injection code runs with
preemtion and interrupts disabled. But the
enable_irq_window() function from SVM may emulate a #vmexit.
This emulation might sleep which causes the schedule() while
atomic() bug.
These fixes (patches 1 and 2) should also be considered for -stable
backporting. The patches 3 to 8 convert the old printk based debugging
for Nested SVM to tracepoints. Patch 9 removes the nsvm_printk code.
Please review and/or consider to apply these changes.
Thanks,
Joerg
Changes to v2:
* Fixed typo in trace_printk message for invlpga
* Converted "key=value" strings into "key: value"
Changes to v1:
* Fixed typo on comment in patch
"KVM: SVM: Notify nested hypervisor of lost event injections"
* Made the fix for the schedule()-while-atomic bug out of the generic
code. It touches only SVM code now.
Diffstat:
arch/x86/kvm/svm.c | 107 +++++++++++++++++++++-----------
arch/x86/kvm/trace.h | 165 ++++++++++++++++++++++++++++++++++++++++++++++++++
arch/x86/kvm/x86.c | 6 ++
3 files changed, 242 insertions(+), 36 deletions(-)
Shortlog:
Alexander Graf (1):
KVM: SVM: Notify nested hypervisor of lost event injections
Joerg Roedel (8):
KVM: SVM: Move INTR vmexit out of atomic code
KVM: SVM: Add tracepoint for nested vmrun
KVM: SVM: Add tracepoint for nested #vmexit
KVM: SVM: Add tracepoint for injected #vmexit
KVM: SVM: Add tracepoint for #vmexit because intr pending
KVM: SVM: Add tracepoint for invlpga instruction
KVM: SVM: Add tracepoint for skinit instruction
KVM: SVM: Remove nsvm_printk debugging code
next reply other threads:[~2009-10-09 14:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-09 14:08 Joerg Roedel [this message]
2009-10-09 14:08 ` [PATCH 1/9] KVM: SVM: Notify nested hypervisor of lost event injections Joerg Roedel
2009-10-09 14:08 ` [PATCH 2/9] KVM: SVM: Move INTR vmexit out of atomic code Joerg Roedel
2009-10-09 14:08 ` [PATCH 3/9] KVM: SVM: Add tracepoint for nested vmrun Joerg Roedel
2009-10-09 14:08 ` [PATCH 4/9] KVM: SVM: Add tracepoint for nested #vmexit Joerg Roedel
2009-10-09 14:08 ` [PATCH 5/9] KVM: SVM: Add tracepoint for injected #vmexit Joerg Roedel
2009-10-09 14:08 ` [PATCH 6/9] KVM: SVM: Add tracepoint for #vmexit because intr pending Joerg Roedel
2009-10-09 14:08 ` [PATCH 7/9] KVM: SVM: Add tracepoint for invlpga instruction Joerg Roedel
2009-10-09 14:08 ` [PATCH 8/9] KVM: SVM: Add tracepoint for skinit instruction Joerg Roedel
2009-10-09 14:08 ` [PATCH 9/9] KVM: SVM: Remove nsvm_printk debugging code Joerg Roedel
2009-10-12 9:26 ` [PATCH 0/9 v3] KVM: Nested SVM fixes and tracepoint conversion Avi Kivity
2009-10-12 18:37 ` Marcelo Tosatti
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