linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ingo Molnar <mingo@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Matt Fleming <matt@codeblueprint.co.uk>,
	linux-efi@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [GIT PULL] EFI fix
Date: Mon, 30 Jul 2018 19:44:44 +0200	[thread overview]
Message-ID: <20180730174444.GA1285@gmail.com> (raw)

Linus,

Please pull the latest efi-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi-urgent-for-linus

   # HEAD: 9b788f32bee6b0b293a4bdfca4ad4bb0206407fb x86/efi: Access EFI MMIO data as unencrypted when SEV is active

An UEFI variables fix for SEV guests.

 Thanks,

	Ingo

------------------>
Brijesh Singh (1):
      x86/efi: Access EFI MMIO data as unencrypted when SEV is active


 arch/x86/platform/efi/efi_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 77873ce700ae..5f2eb3231607 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -417,7 +417,7 @@ static void __init __map_region(efi_memory_desc_t *md, u64 va)
 	if (!(md->attribute & EFI_MEMORY_WB))
 		flags |= _PAGE_PCD;
 
-	if (sev_active())
+	if (sev_active() && md->type != EFI_MEMORY_MAPPED_IO)
 		flags |= _PAGE_ENC;
 
 	pfn = md->phys_addr >> PAGE_SHIFT;

             reply	other threads:[~2018-07-30 17:44 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-30 17:44 Ingo Molnar [this message]
  -- strict thread matches above, loose matches on Subject: below --
2019-05-18  9:17 [GIT PULL] EFI fix Ingo Molnar
2019-05-19 17:45 ` pr-tracker-bot
2019-01-11  7:46 Ingo Molnar
2019-01-11 14:22 ` Ard Biesheuvel
2019-01-11 17:55   ` Linus Torvalds
2019-01-12  8:53     ` Ingo Molnar
2019-01-11 17:47 ` Linus Torvalds
2019-01-12  8:54   ` Ingo Molnar
2018-11-30  6:21 Ingo Molnar
2018-11-30 21:00 ` pr-tracker-bot
2018-07-13 19:57 Ingo Molnar
2017-06-10  8:31 Ingo Molnar
2016-05-16 14:46 Ingo Molnar
2016-05-16 20:05 ` Linus Torvalds
2016-05-16 20:23   ` Alex Thorlton
2016-05-16 22:40     ` Alex Thorlton
2016-05-17  9:04   ` Matt Fleming
2016-05-17  9:46     ` Matt Fleming
2016-05-17 10:20       ` Ingo Molnar
2016-05-23 12:08   ` Matt Fleming
2016-05-23 12:33     ` Josh Poimboeuf
2016-05-24  9:03       ` Ingo Molnar
2016-04-28 17:48 Ingo Molnar
2016-04-16  9:08 Ingo Molnar

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180730174444.GA1285@gmail.com \
    --to=mingo@kernel.org \
    --cc=a.p.zijlstra@chello.nl \
    --cc=ard.biesheuvel@linaro.org \
    --cc=linux-efi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=matt@codeblueprint.co.uk \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).