On Wed, 2014-09-17 at 12:25 +0100, Ben Hutchings wrote: > On Mon, 2014-09-15 at 15:07 -0700, Kamal Mostafa wrote: > > 3.13.11.7 -stable review patch. If anyone has any objections, please let me know. > > > > ------------------ > > > > From: Andy Lutomirski <luto@xxxxxxxxxxxxxx> > > > > commit 7209a75d2009dbf7745e2fd354abf25c3deb3ca3 upstream. > > > > This moves the espfix64 logic into native_iret. To make this work, > > it gets rid of the native patch for INTERRUPT_RETURN: > > INTERRUPT_RETURN on native kernels is now 'jmp native_iret'. > > > > This changes the 16-bit SS behavior on Xen from OOPSing to leaking > > some bits of the Xen hypervisor's RSP (I think). > > > > [ hpa: this is a nonzero cost on native, but probably not enough to > > measure. Xen needs to fix this in their own code, probably doing > > something equivalent to espfix64. ] > > > > Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxxxxxx> > > Link: http://lkml.kernel.org/r/7b8f1d8ef6597cb16ae004a43c56980a7de3cf94.1406129132.git.luto@xxxxxxxxxxxxxx > > Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx> > > Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx> > [...] > > There's another fix related to espfix on Xen, commit 8762e5092828 > ("x86/espfix/xen: Fix allocation of pages for paravirt page tables"). > But I'm not sure whether it's actually needed after this. > > Ben. > I have now queued that one up for 3.13.11.7 also. Thanks yet again, Ben! -Kamal -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html