From: Borislav Petkov <bp@suse.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: x86-ml <x86@kernel.org>, lkml <linux-kernel@vger.kernel.org>
Subject: [GIT PULL] x86/seves fixes for v5.10-rc3
Date: Tue, 3 Nov 2020 11:00:12 +0100 [thread overview]
Message-ID: <20201103100012.GA7825@zn.tnic> (raw)
Hi Linus,
please pull a couple of SEV-ES hardening fixes against a malicious
hypervisor.
Thx.
---
The following changes since commit 3650b228f83adda7e5ee532e2b90429c03f7b9ec:
Linux 5.10-rc1 (2020-10-25 15:14:11 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_seves_for_v5.10_rc3
for you to fetch changes up to 2411cd82112397bfb9d8f0f19cd46c3d71e0ce67:
x86/sev-es: Do not support MMIO to/from encrypted memory (2020-10-29 19:27:42 +0100)
----------------------------------------------------------------
A couple of changes to the SEV-ES code to perform more stringent
hypervisor checks before enabling encryption. (Joerg Roedel)
----------------------------------------------------------------
Joerg Roedel (5):
x86/boot/compressed/64: Introduce sev_status
x86/boot/compressed/64: Sanity-check CPUID results in the early #VC handler
x86/boot/compressed/64: Check SEV encryption in 64-bit boot-path
x86/head/64: Check SEV encryption before switching to kernel page-table
x86/sev-es: Do not support MMIO to/from encrypted memory
arch/x86/boot/compressed/ident_map_64.c | 1 +
arch/x86/boot/compressed/mem_encrypt.S | 20 +++++++-
arch/x86/boot/compressed/misc.h | 2 +
arch/x86/kernel/head_64.S | 16 ++++++
arch/x86/kernel/sev-es-shared.c | 26 ++++++++++
arch/x86/kernel/sev-es.c | 20 +++++---
arch/x86/kernel/sev_verify_cbit.S | 89 +++++++++++++++++++++++++++++++++
arch/x86/mm/mem_encrypt.c | 1 +
8 files changed, 167 insertions(+), 8 deletions(-)
create mode 100644 arch/x86/kernel/sev_verify_cbit.S
--
Regards/Gruss,
Boris.
SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG Nürnberg
next reply other threads:[~2020-11-03 10:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-03 10:00 Borislav Petkov [this message]
2020-11-03 18:00 ` [GIT PULL] x86/seves fixes for v5.10-rc3 pr-tracker-bot
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