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author | neel <neel@FreeBSD.org> | 2015-05-22 21:09:11 +0000 |
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committer | neel <neel@FreeBSD.org> | 2015-05-22 21:09:11 +0000 |
commit | e6dc875ea57264e04ad68beda5193e0a7d3e5df2 (patch) | |
tree | 2c089ddc50d698955d168bca4250eea21d0c9842 | |
parent | 72b5c02439bb9e1b0f62b8040bc3ad7bc2133d73 (diff) | |
download | FreeBSD-src-e6dc875ea57264e04ad68beda5193e0a7d3e5df2.zip FreeBSD-src-e6dc875ea57264e04ad68beda5193e0a7d3e5df2.tar.gz |
Remove the verification of instruction length after instruction decode. The
check has been bogus since r273375.
MFC after: 1 week
-rw-r--r-- | sys/amd64/vmm/vmm_instruction_emul.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/sys/amd64/vmm/vmm_instruction_emul.c b/sys/amd64/vmm/vmm_instruction_emul.c index c5f4159..9b5713d 100644 --- a/sys/amd64/vmm/vmm_instruction_emul.c +++ b/sys/amd64/vmm/vmm_instruction_emul.c @@ -2315,19 +2315,6 @@ decode_moffset(struct vie *vie) } /* - * Verify that all the bytes in the instruction buffer were consumed. - */ -static int -verify_inst_length(struct vie *vie) -{ - - if (vie->num_processed) - return (0); - else - return (-1); -} - -/* * Verify that the 'guest linear address' provided as collateral of the nested * page table fault matches with our instruction decoding. */ @@ -2408,9 +2395,6 @@ vmm_decode_instruction(struct vm *vm, int cpuid, uint64_t gla, if (decode_moffset(vie)) return (-1); - if (verify_inst_length(vie)) - return (-1); - if ((vie->op.op_flags & VIE_OP_F_NO_GLA_VERIFICATION) == 0) { if (verify_gla(vm, cpuid, gla, vie)) return (-1); |