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| author | Peter Zijlstra <peterz@infradead.org> | 2022-05-20 10:26:04 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-05-20 12:04:56 +0200 |
| commit | ce6565282b3b16fd850c6a676f78c6bc76d0c235 (patch) | |
| tree | 220a9522053b41a1877cee8e2b2157f26ffc16a0 /Documentation/admin-guide | |
| parent | 47f33de4aafb2f5e43d480d590a939d0f1d566a9 (diff) | |
| download | linux-ce6565282b3b16fd850c6a676f78c6bc76d0c235.tar.bz2 | |
x86/entry: Fixup objtool/ibt validation
Commit
47f33de4aafb ("x86/sev: Mark the code returning to user space as syscall gap")
added a bunch of text references without annotating them, resulting in a
spree of objtool complaints:
vmlinux.o: warning: objtool: vc_switch_off_ist+0x77: relocation to !ENDBR: entry_SYSCALL_64+0x15c
vmlinux.o: warning: objtool: vc_switch_off_ist+0x8f: relocation to !ENDBR: entry_SYSCALL_compat+0xa5
vmlinux.o: warning: objtool: vc_switch_off_ist+0x97: relocation to !ENDBR: .entry.text+0x21ea
vmlinux.o: warning: objtool: vc_switch_off_ist+0xef: relocation to !ENDBR: .entry.text+0x162
vmlinux.o: warning: objtool: __sev_es_ist_enter+0x60: relocation to !ENDBR: entry_SYSCALL_64+0x15c
vmlinux.o: warning: objtool: __sev_es_ist_enter+0x6c: relocation to !ENDBR: .entry.text+0x162
vmlinux.o: warning: objtool: __sev_es_ist_enter+0x8a: relocation to !ENDBR: entry_SYSCALL_compat+0xa5
vmlinux.o: warning: objtool: __sev_es_ist_enter+0xc1: relocation to !ENDBR: .entry.text+0x21ea
Since these text references are used to compare against IP, and are not
an indirect call target, they don't need ENDBR so annotate them away.
Fixes: 47f33de4aafb ("x86/sev: Mark the code returning to user space as syscall gap")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220520082604.GQ2578@worktop.programming.kicks-ass.net
Diffstat (limited to 'Documentation/admin-guide')
0 files changed, 0 insertions, 0 deletions