[ANNOUNCE] kvm-78 release

[ANNOUNCE] kvm-78 release

[Avi Kivity]

A fairly boring bunch of changes; most visible is that we can boot 
paravirt Linux kernels again, after kvm-77 broke it.

Changes from kvm-77:
- fix paravirt kernels due to missing oos flush (Marcelo Tosatti)
- code cleanups (Sheng Yang)
- fix guest shared interrupts for device assignment (Sheng Yang)
- avoid stale asm-offsets.h on ia64 (Xiantao Zhang)
- fix ia64 halt emulation (Xiantao Zhang)
- extend slot bitmap on i386 (Sheng Yang)
- move private memory slots to avoid conflict with device assignment
   (Sheng Yang)
- future-proof device assignment ABI
- add emulation and unit tests for add acc, imm instruction
   (Guillaume Thouvenin)
- fix nmi watchdog emulation (Jan Kiszka)
- optimize nmi watchdog delivery (Jan Kiszka)
- require irq ack notifier to be used with in-kernel irqchip (Sheng Yang)
- don't halt non-boot cpu if using in-kernel irqchip (Gleb Natapov)
- add cscope definitions (Sheng Yang)
- merge qemu-svn
   - new live migration implementation
   - usb improvements
   - migration fixes
- read UUID from qemu (Gleb Natapov)
- increase max cpu count to 255 for ia64 (Xiantao Zhang)
- handle INIT before SIPI (Gleb Natapov)
- update ppc for nmi changes (Christian Ehrhardt)
- fix external module generation unifdef problem (Sheng Yang)
- set 'g' bit of segment descriptor on AMD when necessary (Amit Shah)
- set 'busy' bit of task descriptor on AMD when necessary (Amit Shah)
   - fixes some AMD->Intel live migration failures
- use emulator to adjust rip of pio string instructions (Guillaume 
Thouvenin)
- increase rmap preallocation (Marcelo Tosatti)
   - fixes oops on mmu intensive smp workloads
- handle mmio in big real mode (Guillaume Thouvenin)
- reorganize ia64 guest data area (Xiantao Zhang)
- fix ia64 guest signal mask (Xiantao Zhang)
- reduce locking when vcpu is halted (Xiantao Zhang)
- update e820 table for ept real mode identity map page (Sheng Yang)
- fix external module build with kvmtrace
- fix ppc xer access (Christian Ehrhardt)
- fix ppc threading (Hollis Blanchard)
- implement libcflat for ppc 44x (Hollis Blanchard)
- set smp limit for ppc (Hollis Blanchard)
- fix ppc memory setup (Christian Ehrhardt)


Notes:
     If you use the modules bundled with kvm-78, you can use any version
of Linux from 2.6.16 upwards.  You may also use kvm-78 userspace with
the kvm modules provided by Linux 2.6.25 or above.  Some features may
only be available in newer releases.

http://kvm.qumranet.com

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

Re: [ANNOUNCE] kvm-78 release

[Alberto Treviño]

On Sunday 02 November 2008 01:39:41 am Avi Kivity wrote:
> Changes from kvm-77:
> - merge qemu-svn
>    - new live migration implementation
>    - migration fixes

Can anyone tell me if these migration fixes now allow for live migration of 
VM's with more than 4 GB of RAM?

Re: [ANNOUNCE] kvm-78 release

[john cooper]

Avi Kivity wrote:
 > A fairly boring bunch of changes; most visible is that we can boot
 > paravirt Linux kernels again, after kvm-77 broke it.

Looks like vtd.c isn't being built when CONFIG_DMAR
is enabled.

-john


=================================================================
--- a/kernel/x86/Kbuild
+++ b/kernel/x86/Kbuild
@@ -9,6 +9,9 @@ kvm-objs := kvm_main.o x86.o mmu.o x86_e
 ifeq ($(EXT_CONFIG_KVM_TRACE),y)
 kvm-objs += kvm_trace.o
 endif
+ifeq ($(CONFIG_DMAR),y)
+kvm-objs += vtd.o
+endif
 kvm-intel-objs := vmx.o vmx-debug.o ../external-module-compat.o
 kvm-amd-objs := svm.o ../external-module-compat.o
 
=================================================================

-- 
john.cooper@redhat.com

Re: [ANNOUNCE] kvm-78 release

[Avi Kivity]

john cooper wrote:
> Avi Kivity wrote:
> > A fairly boring bunch of changes; most visible is that we can boot
> > paravirt Linux kernels again, after kvm-77 broke it.
>
> Looks like vtd.c isn't being built when CONFIG_DMAR
> is enabled.

There's something like that in git already.

-- 
error compiling committee.c: too many arguments to function

Re: [ANNOUNCE] kvm-78 release

[Avi Kivity]

Alberto Treviño wrote:
> On Sunday 02 November 2008 01:39:41 am Avi Kivity wrote:
>   
>> Changes from kvm-77:
>> - merge qemu-svn
>>    - new live migration implementation
>>    - migration fixes
>>     
>
> Can anyone tell me if these migration fixes now allow for live migration of 
> VM's with more than 4 GB of RAM?
>   

I think the new migration code fixes this.  Anthony, is this right?

-- 
error compiling committee.c: too many arguments to function

Re: [ANNOUNCE] kvm-78 release

[Anthony Liguori]

Avi Kivity wrote:
> Alberto Treviño wrote:
>> On Sunday 02 November 2008 01:39:41 am Avi Kivity wrote:
>>  
>>> Changes from kvm-77:
>>> - merge qemu-svn
>>>    - new live migration implementation
>>>    - migration fixes
>>>     
>>
>> Can anyone tell me if these migration fixes now allow for live 
>> migration of VM's with more than 4 GB of RAM?
>>   
>
> I think the new migration code fixes this.  Anthony, is this right?

It does.  It also fixes > 4GB guests save/restore.

Regards,

Anthony Liguori