Messages in this thread | | | Date | Thu, 28 Sep 2017 19:51:29 +0200 | From | Borislav Petkov <> | Subject | Re: [Part1 PATCH v5 13/17] x86/io: Unroll string I/O when SEV is active |
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On Wed, Sep 27, 2017 at 10:13:25AM -0500, Brijesh Singh wrote: > From: Tom Lendacky <thomas.lendacky@amd.com> > > Secure Encrypted Virtualization (SEV) does not support string I/O, so > unroll the string I/O operation into a loop operating on one element at > a time. > > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: "H. Peter Anvin" <hpa@zytor.com> > Cc: Borislav Petkov <bp@suse.de> > Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > Cc: David Laight <David.Laight@ACULAB.COM> > Cc: Arnd Bergmann <arnd@arndb.de> > Cc: x86@kernel.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> > Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> > --- > arch/x86/include/asm/io.h | 42 ++++++++++++++++++++++++++++++++++++++---- > arch/x86/mm/mem_encrypt.c | 8 ++++++++ > 2 files changed, 46 insertions(+), 4 deletions(-)
Reviewed-by: Borislav Petkov <bp@suse.de>
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
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