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| author |   mikeb <mikeb@openbsd.org> | 2016-05-10 14:15:57 +0000 |
|---|---|---|
| committer | mikeb <mikeb@openbsd.org> | 2016-05-10 14:15:57 +0000 |
| commit | 80feb1eca61ec1931cc142275cada5737498bccb (patch) | |
| tree | ed37950f5bf296057cdb935071417379b3f79b1b | |
| parent | Enable separate compilation while keeping internal interfaces hidden. (diff) | |
| download | wireguard-openbsd-80feb1eca61ec1931cc142275cada5737498bccb.tar.xz wireguard-openbsd-80feb1eca61ec1931cc142275cada5737498bccb.zip | |
Fill Xen hypercall page with int3's like the hypervisor does.
Idea from deraadt@ and mlarkin@.
| -rw-r--r-- | sys/arch/amd64/amd64/locore.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/arch/amd64/amd64/locore.S b/sys/arch/amd64/amd64/locore.S index a384ec9d4e0..f66dc562df8 100644 --- a/sys/arch/amd64/amd64/locore.S +++ b/sys/arch/amd64/amd64/locore.S @@ -1,4 +1,4 @@ -/* $OpenBSD: locore.S,v 1.76 2016/02/26 02:23:07 mlarkin Exp $ */ +/* $OpenBSD: locore.S,v 1.77 2016/05/10 14:15:57 mikeb Exp $ */ /* $NetBSD: locore.S,v 1.13 2004/03/25 18:33:17 drochner Exp $ */ /* @@ -1180,5 +1180,5 @@ _C_LABEL(codepatch_end): .align NBPG .globl _C_LABEL(xen_hypercall_page) _C_LABEL(xen_hypercall_page): - .skip 0x1000, 0x90 /* Fill with NOPs */ + .skip 0x1000, 0xcc /* Fill with int3 */ #endif /* NXEN > 0 */ |