| commit | cbb53b9623a70f012e1fdfb6fc0af6878df4762b | [log] [tgz] |
|---|---|---|
| author | Denys Vlasenko <dvlasenk@redhat.com> | Thu Feb 12 20:06:57 2015 +0100 |
| committer | Ingo Molnar <mingo@kernel.org> | Wed Feb 18 21:01:59 2015 +0100 |
| tree | c7cdaefe10cb242f20ee4c02da6bc36188740ca8 | |
| parent | 8a764a875fe3cf3a83296bacd00bfc41917e95e2 [diff] |
x86/asm/decoder: Explain CALLW discrepancy between Intel and AMD In 64-bit mode, AMD and Intel CPUs treat 0x66 prefix before branch insns differently. For near branches, it affects decode too since immediate offset's width is different. See these empirical tests: http://marc.info/?l=linux-kernel&m=139714939728946&w=2 Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Oleg Nesterov <oleg@redhat.com> Link: http://lkml.kernel.org/r/1423768017-31766-1-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>