[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen4.2 S3 regression?
On Tue, Sep 04, 2012 at 10:28:37AM -0400, Ben Guthro wrote: > How is it that it works with an older hypervisor, then? > > Konrad - is the v7 code functionally different than the v10 code, or > is it more stylistic changes? It is that v3.4 (and up) already has the restore_MSI hypervisor call: commit 8605c6844fb9bdf55471bb87c3ac62d44eb34e04 Author: Tang Liang <liang.tang@xxxxxxxxxx> Date: Thu Dec 8 17:36:39 2011 +0800 xen: Utilize the restore_msi_irqs hook. to make a hypercall to restore the vectors in the MSI/MSI-X configuration space. Signed-off-by: Tang Liang <liang.tang@xxxxxxxxxx> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> The only part that is left out of mainline is the part where the hypercall is done properly. That is what the acpi/s3.v10 does.. but after talking to Len he pointed out a different way of doing this. > > On Sep 4, 2012, at 10:25 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote: > > >>>> On 04.09.12 at 14:49, Ben Guthro <ben@xxxxxxxxxx> wrote: > >> I forgot to address your dom0 kernel concern - > >> > >> All of these tests have been run with Konrad Wilk's acpi-s3.vX branches. > >> > >> The later kernels took more recent branches, while the 3.2.yy kernels > >> used an older (but still functional) branch (acpi-s3.v7) > > > > This and the log you provided suggest that your kernel is lacking > > the MSI restore code altogether (or it is not getting called as > > intended). With that, there's pretty little point in continuing > > the investigation on the hypervisor side. > > > > Jan > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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