On Thu, Oct 15, 2020 at 04:52:09PM +0300, Kirill A. Shutemov wrote:
> Yes, the patch helps to fix 5-level paging boot:
>
> Tested-by: Kirill A. Shutemov
Thx!
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
On Tue, Oct 13, 2020 at 10:33:58AM +0200, Borislav Petkov wrote:
> On Tue, Oct 13, 2020 at 11:20:47AM +0300, Kirill A. Shutemov wrote:
> > With TCG or KVM? I use -machine "type=q35,accel=tcg".
>
> Thx, that triggered it - it was KVM before.
>
> Btw, are 5level boxes shipping already or not yet?
On Tue, Oct 13, 2020 at 12:12:28PM +0300, Kirill A. Shutemov wrote:
> Not yet.
Oh good, that makes this fix a lot less critical then.
> Okay, will do.
Thx!
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
On Tue, Oct 13, 2020 at 10:33:58AM +0200, Borislav Petkov wrote:
> On Tue, Oct 13, 2020 at 11:20:47AM +0300, Kirill A. Shutemov wrote:
> > With TCG or KVM? I use -machine "type=q35,accel=tcg".
>
> Thx, that triggered it - it was KVM before.
>
> Btw, are 5level boxes shipping already or not yet?
Hi Arvind,
On Sat, Oct 10, 2020 at 03:11:10PM -0400, Arvind Sankar wrote:
> Commit
> ca0e22d4f011 ("x86/boot/compressed/64: Always switch to own page table")
> started using a new set of pagetables even without KASLR.
>
> After that commit, initialize_identity_maps() is called before the
>
On Tue, Oct 13, 2020 at 11:20:47AM +0300, Kirill A. Shutemov wrote:
> With TCG or KVM? I use -machine "type=q35,accel=tcg".
Thx, that triggered it - it was KVM before.
Btw, are 5level boxes shipping already or not yet? Because I've not seen
one yet. If you have access to the hw, I'd appreciate
On Tue, Oct 13, 2020 at 10:11:17AM +0200, Borislav Petkov wrote:
> On Mon, Oct 12, 2020 at 11:35:01AM -0400, Arvind Sankar wrote:
> > > qemu supports it. -cpu "qemu64,+la57"
> >
> > Thanks! On QEMU, it does crash without this patch.
>
> Works fine here. I gave this to qemu:
>
> -cpu
On Mon, Oct 12, 2020 at 11:35:01AM -0400, Arvind Sankar wrote:
> > qemu supports it. -cpu "qemu64,+la57"
>
> Thanks! On QEMU, it does crash without this patch.
Works fine here. I gave this to qemu:
-cpu qemu64,+la57,vendor=GenuineIntel
it said:
qemu-system-x86_64: warning: host doesn't support
On Mon, Oct 12, 2020 at 05:08:30PM +0300, Kirill A. Shutemov wrote:
> On Sat, Oct 10, 2020 at 03:26:24PM -0400, Arvind Sankar wrote:
> > On Sat, Oct 10, 2020 at 03:11:10PM -0400, Arvind Sankar wrote:
> > > Commit
> > > ca0e22d4f011 ("x86/boot/compressed/64: Always switch to own page table")
> >
On Sat, Oct 10, 2020 at 03:26:24PM -0400, Arvind Sankar wrote:
> On Sat, Oct 10, 2020 at 03:11:10PM -0400, Arvind Sankar wrote:
> > Commit
> > ca0e22d4f011 ("x86/boot/compressed/64: Always switch to own page table")
> > started using a new set of pagetables even without KASLR.
> >
> > After
On Sat, Oct 10, 2020 at 03:11:10PM -0400, Arvind Sankar wrote:
> Commit
> ca0e22d4f011 ("x86/boot/compressed/64: Always switch to own page table")
> started using a new set of pagetables even without KASLR.
>
> After that commit, initialize_identity_maps() is called before the
> 5-level paging
Commit
ca0e22d4f011 ("x86/boot/compressed/64: Always switch to own page table")
started using a new set of pagetables even without KASLR.
After that commit, initialize_identity_maps() is called before the
5-level paging variables are setup in choose_random_location(), which
will not work if
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