linux-kernel - Re: [PATCH] MAINTAINERS: Update W's for KEYS/KEYRINGS

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Date: Mon, 26 Feb 2024 17:11:51 +0700
From: James Bottomley <James.Bottomley@...senPartnership.com>
To: Jarkko Sakkinen <jarkko@...nel.org>, linux-kernel@...r.kernel.org
Cc: Jason Gunthorpe <jgg@...pe.ca>, Mimi Zohar <zohar@...ux.ibm.com>, Peter
	Huewe <peterhuewe@....de>, linux-integrity@...r.kernel.org
Subject: Re: [PATCH] MAINTAINERS: Update W's for KEYS/KEYRINGS_INTEGRITY and
 TPM DEVICE RIVER

On Mon, 2024-02-26 at 11:26 +0200, Jarkko Sakkinen wrote:
> On Mon Feb 26, 2024 at 8:49 AM EET, James Bottomley wrote:
> > On Mon, 2024-02-26 at 08:22 +0200, Jarkko Sakkinen wrote:
> > > Add TPM driver test suite URL to the MAINTAINERS files and move
> > > the
> > > wiki
> > > URL to more appropriate location.
> > > 
> > > Link: https://gitlab.com/jarkkojs/linux-tpmdd-test
> > > Link: https://kernsec.org/wiki/index.php/Linux_Kernel_Integrity
> > > Cc: Jason Gunthorpe <jgg@...pe.ca>
> > > Cc: Mimi Zohar <zohar@...ux.ibm.com>
> > > Cc: Peter Huewe <peterhuewe@....de>
> > > Cc: linux-integrity@...r.kernel.org
> > > Signed-off-by: Jarkko Sakkinen <jarkko@...nel.org>
> > > ---
> > >  MAINTAINERS | 3 ++-
> > >  1 file changed, 2 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/MAINTAINERS b/MAINTAINERS
> > > index bf77be03fb2b..6380c1109b86 100644
> > > --- a/MAINTAINERS
> > > +++ b/MAINTAINERS
> > > @@ -11947,6 +11947,7 @@ M:      Mimi Zohar <zohar@...ux.ibm.com>
> > >  L:     linux-integrity@...r.kernel.org
> > >  L:     keyrings@...r.kernel.org
> > >  S:     Supported
> > > +W:     https://kernsec.org/wiki/index.php/inux_Kernel_Integrity
> >                                              ^
> >                                          Missing L
> > 
> > James
> 
> Thanks! I'll fixup that.
> 
> "linux-tpmdd-test" is the suite that I'm using to test your patch
> set. It has swtpm integrated. I wonder if there was easy to way to
> tweak swtpm to emulate "interposer", i.e. reset its state while it is
> running (preferably not by restarting it).

The way I do it is to use a qemu patch

https://lore.kernel.org/qemu-devel/20231004184219.6594-1-jejb@linux.ibm.com/

which allows qemu to connect to the mssim (or ibmswtpm2) TPM over an
inet socket which means I can execute TPM commands from the host (like
resetting the TPM) as well as the guest and snoop the TPM traffic.

James