From: Adrian Hunter <adrian.hunter@intel.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Borislav Petkov <bp@alien8.de>,
Andrew Morton <akpm@linux-foundation.org>,
Ard Biesheuvel <ardb@kernel.org>
Cc: Dave Hansen <dave.hansen@intel.com>,
Vlastimil Babka <vbabka@suse.cz>,
Mike Rapoport <rppt@linux.ibm.com>,
Lorenzo Stoakes <lstoakes@gmail.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Baoquan He <bhe@redhat.com>, Vivek Goyal <vgoyal@redhat.com>,
Dave Young <dyoung@redhat.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-coco@lists.linux.dev,
linux-efi@vger.kernel.org, kexec@lists.infradead.org
Subject: [PATCH V2 0/2] Do not try to access unaccepted memory
Date: Mon, 11 Sep 2023 14:21:12 +0300 [thread overview]
Message-ID: <20230911112114.91323-1-adrian.hunter@intel.com> (raw)
Hi
Support for unaccepted memory was added recently, refer commit
dcdfdd40fa82 ("mm: Add support for unaccepted memory"), whereby
a virtual machine may need to accept memory before it can be used.
Plug a few gaps where RAM is exposed without checking if it is
unaccepted memory.
Changes in V2:
efi/unaccepted: Do not let /proc/vmcore try to access unaccepted memory
Change patch subject and commit message
Use vmcore_cb->.pfn_is_ram() instead of changing vmcore.c
proc/kcore: Do not try to access unaccepted memory
Change patch subject and commit message
Do not open code pfn_is_unaccepted_memory()
/dev/mem: Do not map unaccepted memory
Patch dropped because it is not required
Adrian Hunter (2):
efi/unaccepted: Do not let /proc/vmcore try to access unaccepted memory
proc/kcore: Do not try to access unaccepted memory
drivers/firmware/efi/unaccepted_memory.c | 20 ++++++++++++++++++++
fs/proc/kcore.c | 3 ++-
include/linux/mm.h | 7 +++++++
3 files changed, 29 insertions(+), 1 deletion(-)
Regards
Adrian
next reply other threads:[~2023-09-11 20:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-11 11:21 Adrian Hunter [this message]
2023-09-11 11:21 ` [PATCH V2 1/2] efi/unaccepted: Do not let /proc/vmcore try to access unaccepted memory Adrian Hunter
2023-09-12 7:18 ` David Hildenbrand
2023-09-12 7:19 ` David Hildenbrand
2023-09-12 7:47 ` Adrian Hunter
2023-09-12 7:50 ` David Hildenbrand
2023-09-11 11:21 ` [PATCH V2 2/2] proc/kcore: Do not " Adrian Hunter
2023-09-12 7:13 ` David Hildenbrand
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