Messages in this thread | | | Date | Tue, 19 Sep 2017 13:47:46 +0200 | From | Borislav Petkov <> | Subject | Re: [Part1 PATCH v4 17/17] X86/KVM: Clear encryption attribute when SEV is active |
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On Sat, Sep 16, 2017 at 07:34:18AM -0500, Brijesh Singh wrote: > The guest physical memory area holding the struct pvclock_wall_clock and > struct pvclock_vcpu_time_info are shared with the hypervisor. Hypervisor
the hypervisor. It ...
> periodically updates the contents of the memory. When SEV is active, we > must clear the encryption attributes from the shared memory pages so that > both hypervisor and guest can access the data. > > 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: Paolo Bonzini <pbonzini@redhat.com> > Cc: "Radim Krčmář" <rkrcmar@redhat.com> > Cc: Tom Lendacky <thomas.lendacky@amd.com> > Cc: x86@kernel.org > Cc: linux-kernel@vger.kernel.org > Cc: kvm@vger.kernel.org > Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> > --- > arch/x86/entry/vdso/vma.c | 5 ++-- > arch/x86/kernel/kvmclock.c | 65 ++++++++++++++++++++++++++++++++++++++-------- > 2 files changed, 57 insertions(+), 13 deletions(-)
Otherwise:
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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