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From: Joerg Roedel <joro@8bytes.org>
To: x86@kernel.org
Cc: Joerg Roedel <joro@8bytes.org>, Joerg Roedel <jroedel@suse.de>,
	hpa@zytor.com, Andy Lutomirski <luto@kernel.org>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Jiri Slaby <jslaby@suse.cz>,
	Dan Williams <dan.j.williams@intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	Juergen Gross <jgross@suse.com>,
	Kees Cook <keescook@chromium.org>,
	David Rientjes <rientjes@google.com>,
	Cfir Cohen <cfir@google.com>, Erdem Aktas <erdemaktas@google.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mike Stunes <mstunes@vmware.com>,
	Sean Christopherson <seanjc@google.com>,
	Martin Radev <martin.b.radev@gmail.com>,
	Arvind Sankar <nivedita@alum.mit.edu>,
	linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, virtualization@lists.linux-foundation.org
Subject: [PATCH v7 0/2] x86/sev: Fixes for SEV-ES Guest Support
Date: Fri, 18 Jun 2021 13:54:07 +0200	[thread overview]
Message-ID: <20210618115409.22735-1-joro@8bytes.org> (raw)

From: Joerg Roedel <jroedel@suse.de>

Hi,

please find here the next iteration of my pending fixes for SEV-ES
guest support in Linux. This version addresses the comments I received
from Peter on the previous version, in particular:

	- Removed IRQ disable/enable calls in the ap-hlt loop code
	- Made __sev_get/put_ghcb() noinstr instead of __always_inline
	  and put instrumentation_begin()/end() calls around panic()
	  to fix an objtool warning.
	- Split up #DB handling in the #VC handler into a from-user
	  and from-kernel part as well.

The patches are again tested with a kernel with various debugging
options enabled, running as an SEV-ES guest.

The previous version of these patches can be found here:

	https://lore.kernel.org/lkml/20210616184913.13064-1-joro@8bytes.org/

Please review.

Thanks,

	Joerg

Joerg Roedel (2):
  x86/sev: Make sure IRQs are disabled while GHCB is active
  x86/sev: Split up runtime #VC handler for correct state tracking

 arch/x86/entry/entry_64.S       |   4 +-
 arch/x86/include/asm/idtentry.h |  29 ++---
 arch/x86/kernel/sev.c           | 182 ++++++++++++++++++--------------
 3 files changed, 113 insertions(+), 102 deletions(-)


base-commit: 07570cef5e5c3fcec40f82a9075abb4c1da63319
-- 
2.31.1


             reply	other threads:[~2021-06-18 11:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-18 11:54 Joerg Roedel [this message]
2021-06-18 11:54 ` [PATCH v7 1/2] x86/sev: Make sure IRQs are disabled while GHCB is active Joerg Roedel
2021-06-21 12:40   ` Borislav Petkov
2021-06-18 11:54 ` [PATCH v7 2/2] x86/sev: Split up runtime #VC handler for correct state tracking Joerg Roedel
2021-06-21 13:13 ` [PATCH v7 0/2] x86/sev: Fixes for SEV-ES Guest Support Peter Zijlstra
2021-06-21 15:52   ` Joerg Roedel

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