linux-kernel - [PATCH 0/3] x86: Fix some bugs related to ITS mitigation

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Message-ID: <20250528123557.12847-1-jgross@suse.com>
Date: Wed, 28 May 2025 14:35:54 +0200
From: Juergen Gross <jgross@...e.com>
To: linux-kernel@...r.kernel.org,
	x86@...nel.org
Cc: xin@...or.com,
	Juergen Gross <jgross@...e.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Andy Lutomirski <luto@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	stable@...r.kernel.org
Subject: [PATCH 0/3] x86: Fix some bugs related to ITS mitigation

Running as a Xen PV guest uncovered some bugs when ITS mitigation is
active.

Juergen Gross (3):
  x86/execmem: don't use PAGE_KERNEL protection for code pages
  x86/mm/pat: don't collapse pages without PSE set
  x86/alternative: make kernel ITS thunks read-only

 arch/x86/kernel/alternative.c | 16 ++++++++++++++++
 arch/x86/mm/init.c            |  2 +-
 arch/x86/mm/pat/set_memory.c  |  3 +++
 3 files changed, 20 insertions(+), 1 deletion(-)

-- 
2.43.0