[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v5 1/9] libxc: reorganize domain builder guest memory allocator
On 12/11/15 16:55, Wei Liu wrote: > On Thu, Nov 12, 2015 at 04:27:14PM +0100, Juergen Gross wrote: >> On 12/11/15 15:47, Ian Campbell wrote: >>> On Thu, 2015-11-12 at 15:03 +0100, Juergen Gross wrote: >>>> On 12/11/15 14:48, Wei Liu wrote: >>>>> On Thu, Nov 12, 2015 at 02:43:28PM +0100, Juergen Gross wrote: >>>>>> Guest memory allocation in the domain builder of libxc is done via >>>>>> virtual addresses only. In order to be able to support preallocated >>>>>> areas not virtually mapped reorganize the memory allocator to keep >>>>>> track of allocated pages globally and in allocated segments. >>>>>> >>>>>> This requires an interface change of the allocate callback of the >>>>>> domain builder which currently is using the last mapped virtual >>>>>> address as a parameter. This is no problem as the only user of this >>>>>> callback is stubdom/grub/kexec.c using this virtual address to >>>>>> calculate the last used pfn. >>>>>> >>>>>> Signed-off-by: Juergen Gross <jgross@xxxxxxxx> >>>>> >>>>> If you've tested and confirmed pvgrub (stubdom based grub) doesn't >>>>> break: >>>>> >>>>> Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx> >>>>> >>>> >>>> Hmm, difficult. Is this ever tested automatically? >>> >>> Yes, see the test-amd64-amd64-amd64-pvgrub and test-amd64-amd64-i386-pvgrub >>> jobs in any recent osstest flight (it was added a couple of months back. >>> >>> http://logs.test-lab.xenproject.org/osstest/results/history/test-amd64-amd64-amd64-pvgrub/xen-unstable.html >>> >>> suggests it works ok in general. >> >> It doesn't work on any of my test installations I've tried >> so far (3 different installations with 3 different domUs). >> And that's without my patches being active. >> >> In case somebody else is capable of testing pvgrub with >> xen-unstable I'd appreciate testing my patches there! >> > > I played with the pvgrub generated with this series, it can boot Debian > Wheezy stock 3.2 kernel. Thanks for testing this! Juergen _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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