x86/idt: Split idt_data setup out of set_intr_gate()

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The code to setup idt_data is needed for early exception handling, but
set_intr_gate() can't be used that early because it has pv-ops in its
code path which don't work that early.

Split out the idt_data initialization part from set_intr_gate() so
that it can be used separately.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lkml.kernel.org/r/20200907131613.12703-29-joro@8bytes.org

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Joerg Roedel 2020-09-07 15:15:29 +02:00 • committed by Borislav Petkov

parent a7de15d489

commit 4bed2266cc

1 changed files with 14 additions and 8 deletions

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arch/x86/kernel/idt.c

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