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(parent: 8b87d8c) | patch
x86/ibt,xen: Sprinkle the ENDBR
authorPeter Zijlstra <peterz@infradead.org>
Tue, 8 Mar 2022 15:30:23 +0000 (16:30 +0100)
committerPeter Zijlstra <peterz@infradead.org>
Tue, 15 Mar 2022 09:32:35 +0000 (10:32 +0100)
commit5b2fc51576eff811a614e33cbbd0c3cb05022892
tree7e29a5e6c80c12bdc17ff1b832840f16ffcbb658tree | snapshot
parent8b87d8cec1b31ea710568ae49ba5f5146318da0dcommit | diff
x86/ibt,xen: Sprinkle the ENDBR

Even though Xen currently doesn't advertise IBT, prepare for when it
will eventually do so and sprinkle the ENDBR dust accordingly.

Even though most of the entry points are IRET like, the CPL0
Hypervisor can set WAIT-FOR-ENDBR and demand ENDBR at these sites.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20220308154317.873919996@infradead.org
arch/x86/entry/entry_64.S diff | blob | history
arch/x86/include/asm/segment.h diff | blob | history
arch/x86/kernel/head_64.S diff | blob | history
arch/x86/xen/enlighten_pv.c diff | blob | history
arch/x86/xen/xen-asm.S diff | blob | history
arch/x86/xen/xen-head.S diff | blob | history
Domain: System / Kernel;