Date: Thu, 26 Jun 2014 17:15:42 +0000 (UTC) From: Tycho Nightingale <tychon@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r267921 - head/sys/amd64/vmm Message-ID: <201406261715.s5QHFgxE003750@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: tychon Date: Thu Jun 26 17:15:41 2014 New Revision: 267921 URL: http://svnweb.freebsd.org/changeset/base/267921 Log: Add support for emulating the move instruction: "mov r/m8, imm8". Reviewed by: neel Modified: head/sys/amd64/vmm/vmm_instruction_emul.c Modified: head/sys/amd64/vmm/vmm_instruction_emul.c ============================================================================== --- head/sys/amd64/vmm/vmm_instruction_emul.c Thu Jun 26 17:10:07 2014 (r267920) +++ head/sys/amd64/vmm/vmm_instruction_emul.c Thu Jun 26 17:15:41 2014 (r267921) @@ -104,6 +104,12 @@ static const struct vie_op one_byte_opco .op_byte = 0x8B, .op_type = VIE_OP_TYPE_MOV, }, + [0xC6] = { + /* XXX Group 11 extended opcode - not just MOV */ + .op_byte = 0xC6, + .op_type = VIE_OP_TYPE_MOV, + .op_flags = VIE_OP_F_IMM8, + }, [0xC7] = { .op_byte = 0xC7, .op_type = VIE_OP_TYPE_MOV, @@ -310,6 +316,15 @@ emulate_mov(void *vm, int vcpuid, uint64 error = vie_update_register(vm, vcpuid, reg, val, size); } break; + case 0xC6: + /* + * MOV from imm8 to mem (ModRM:r/m) + * C6/0 mov r/m8, imm8 + * REX + C6/0 mov r/m8, imm8 + */ + size = 1; + error = memwrite(vm, vcpuid, gpa, vie->immediate, size, arg); + break; case 0xC7: /* * MOV from imm32 to mem (ModRM:r/m)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201406261715.s5QHFgxE003750>