From: Arvind Sankar <nivedita@alum.mit.edu>
To: x86@kernel.org, Joerg Roedel <jroedel@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 0/5] Couple of bugfixes to sev-es series
Date: Wed, 7 Oct 2020 15:53:46 -0400 [thread overview]
Message-ID: <20201007195351.776555-1-nivedita@alum.mit.edu> (raw)
With the SEV-ES series, the kernel command line is no longer guaranteed
to be mapped on entry into the main kernel. This fixes that, and a
stackprotector issue that cropped up on head64.c.
The first three patches are preparatory cleanups. Patch 4 fixes the
mapping issue and patch 5 disables stack protector for head code.
Arvind Sankar (5):
x86/boot: Initialize boot_params in startup code
x86/boot: Move get_cmd_line_ptr() and COMMAND_LINE_SIZE into misc.h
x86/boot/64: Change add_identity_map() to take size for ease of use
x86/boot/64: Explicitly map boot_params and command line
x86/head/64: Disable stack protection for head$(BITS).o
arch/x86/boot/compressed/cmdline.c | 8 ------
arch/x86/boot/compressed/head_32.S | 11 ++++----
arch/x86/boot/compressed/head_64.S | 34 ++++++++-----------------
arch/x86/boot/compressed/ident_map_64.c | 18 ++++++-------
arch/x86/boot/compressed/kaslr.c | 6 -----
arch/x86/boot/compressed/misc.c | 10 +-------
arch/x86/boot/compressed/misc.h | 13 ++++++++++
arch/x86/boot/compressed/pgtable_64.c | 5 +---
arch/x86/kernel/Makefile | 2 ++
9 files changed, 43 insertions(+), 64 deletions(-)
--
2.26.2
next reply other threads:[~2020-10-07 19:53 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-07 19:53 Arvind Sankar [this message]
2020-10-07 19:53 ` [PATCH 1/5] x86/boot: Initialize boot_params in startup code Arvind Sankar
2020-10-08 9:04 ` Joerg Roedel
2020-10-08 13:44 ` Arvind Sankar
2020-10-07 19:53 ` [PATCH 2/5] x86/boot: Move get_cmd_line_ptr() and COMMAND_LINE_SIZE into misc.h Arvind Sankar
2020-10-08 9:11 ` Joerg Roedel
2020-10-08 9:30 ` Borislav Petkov
2020-10-08 13:47 ` Arvind Sankar
2020-10-08 15:10 ` Borislav Petkov
2020-10-08 15:30 ` Arvind Sankar
2020-10-08 16:16 ` Borislav Petkov
2020-10-07 19:53 ` [PATCH 3/5] x86/boot/64: Change add_identity_map() to take size for ease of use Arvind Sankar
2020-10-08 9:14 ` Joerg Roedel
2020-10-08 13:49 ` Arvind Sankar
2020-10-07 19:53 ` [PATCH 4/5] x86/boot/64: Explicitly map boot_params and command line Arvind Sankar
2020-10-08 9:17 ` Joerg Roedel
2020-10-08 9:48 ` Joerg Roedel
2020-10-08 13:57 ` Arvind Sankar
2020-10-07 19:53 ` [PATCH 5/5] x86/head/64: Disable stack protection for head$(BITS).o Arvind Sankar
2020-10-08 8:42 ` Joerg Roedel
2020-10-08 14:52 ` Arvind Sankar
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