Thread (79 messages) 79 messages, 10 authors, 2018-11-14

Re: [PATCH v5 04/27] x86/fpu/xstate: Add XSAVES system states for shadow stack

From: Pavel Machek <hidden>
Date: 2018-11-11 11:31:10
Also in: linux-arch, linux-doc, linux-mm, lkml

Hi!
quoted
+/*
+ * State component 12 is Control flow Enforcement kernel states
+ */
+struct cet_kernel_state {
+	u64 kernel_ssp;	/* kernel shadow stack */
+	u64 pl1_ssp;	/* ring-1 shadow stack */
+	u64 pl2_ssp;	/* ring-2 shadow stack */
Just write "privilege level" everywhere - not "ring".
Please just use word "ring". It is well estabilished terminology.

Which ring is priviledge level 1, given that we have SMM and
virtualization support?

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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