- 30 1月, 2008 20 次提交
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由 Avi Kivity 提交于
Now that rex_prefix is part of the decode cache, there is no need to pass it along. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Instructions like 'inc reg' that have the register operand encoded in the opcode are currently specially decoded. Extend decode_register_operand() to handle that case, indicated by having DstReg or SrcReg without ModRM. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Share the common parts of SrcReg and DstReg decoding. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
The 'mov abs' instruction family (opcodes 0xa0 - 0xa3) still depends on cr2 provided by the page fault handler. This is wrong for several reasons: - if an instruction accessed misaligned data that crosses a page boundary, and if the fault happened on the second page, cr2 will point at the second page, not the data itself. - if we're emulating in real mode, or due to a FlexPriority exit, there is no cr2 generated. So, this change adds decoding for this instruction form and drops reliance on cr2. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Zhang Xiantao 提交于
First step to split kvm_vcpu. Currently, we just use an macro to define the common fields in kvm_vcpu for all archs, and all archs need to define its own kvm_vcpu struct. Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Instruction: cmc, clc, cli, sti opcodes: 0xf5, 0xf8, 0xfa, 0xfb respectively. [avi: fix reference to EFLG_IF which is not defined anywhere] Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Instructions: inc r16/r32 (opcode 0x40-0x47) dec r16/r32 (opcode 0x48-0x4f) Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Mike Day 提交于
Signed-off-by: NMike D. Day <ncmike@ncultra.org> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
This patch modifies the management of REX prefix according behavior I saw in Xen 3.1. In Xen, this modification has been introduced by Jan Beulich. http://lists.xensource.com/archives/html/xen-changelog/2007-01/msg00081.htmlSigned-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Qing He 提交于
Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Remove no_wb, use dst.type = OP_NONE instead, idea stollen from xen-3.1 Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Remove _eflags and use directly ctxt->eflags. Caching eflags is not needed as it is restored to vcpu by kvm_main.c:emulate_instruction() from ctxt->eflags only if emulation doesn't fail. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
To improve readability, move push, writeback, and grp 1a/2/3/4/5/9 emulation parts into functions. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Move emulate_ctxt to kvm_vcpu to keep emulate context when we exit from kvm module. Call x86_decode_insn() only when needed. Modify x86_emulate_insn() to not modify the context if it must be re-entered. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
emulate_instruction() calls now x86_decode_insn() and x86_emulate_insn(). x86_emulate_insn() is x86_emulate_memop() without the decoding part. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Split the decoding process into a new function x86_decode_insn(). Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Move all x86_emulate_memop() common variables between decode and execute to a structure decode_cache. This will help in later separating decode and emulate. struct decode_cache { u8 twobyte; u8 b; u8 lock_prefix; u8 rep_prefix; u8 op_bytes; u8 ad_bytes; struct operand src; struct operand dst; unsigned long *override_base; unsigned int d; unsigned long regs[NR_VCPU_REGS]; unsigned long eip; /* modrm */ u8 modrm; u8 modrm_mod; u8 modrm_reg; u8 modrm_rm; u8 use_modrm_ea; unsigned long modrm_ea; unsigned long modrm_val; }; Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Remove #ifdef functions never used Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Anthony Liguori 提交于
This patch refactors the current hypercall infrastructure to better support live migration and SMP. It eliminates the hypercall page by trapping the UD exception that would occur if you used the wrong hypercall instruction for the underlying architecture and replacing it with the right one lazily. A fall-out of this patch is that the unhandled hypercalls no longer trap to userspace. There is very little reason though to use a hypercall to communicate with userspace as PIO or MMIO can be used. There is no code in tree that uses userspace hypercalls. [avi: fix #ud injection on vmx] Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Anthony Liguori 提交于
Add vmmcall/vmcall to x86_emulate. Future patch will implement functionality for these instructions. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 27 11月, 2007 3 次提交
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由 Amit Shah 提交于
emulator_write_std() is not implemented, and calling write_emulated should work just as well in place of write_std. Fixes emulator failures with the push r/m instruction. Signed-off-by: NAmit Shah <amit.shah@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Izik Eidus 提交于
this make sure that no matter what is the operand size, all the value of the eip will be saved Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Izik Eidus 提交于
Change JMP_REL to call to register_address_increment(): the operands size should not effect the calculation of the eip, instead the ad_bytes should affect it. Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 08 11月, 2007 2 次提交
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由 Avi Kivity 提交于
Emulate the 'invd' instruction (opcode 0f 08). Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
'push imm8' found itself in the wrong switch somehow, so it is never executed. This fixes Windows 2003 installation. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 22 10月, 2007 4 次提交
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由 Aurelien Jarno 提交于
The patch belows changes the access type to register from memory for instructions that are declared as SrcMem or DstMem, but have a ModR/M byte with Mod = 3. It fixes (at least) the lmsw and smsw instructions on an AMD64 CPU, which are needed for FreeBSD. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Sheng Yang 提交于
Implement emulation of instruction: movnti m32/m64, r32/r64 opcode: 0x0f 0xc3 Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
The repnz/repne instructions must set rep_prefix to 1 like rep/repe/repz. This patch correct the disk probe problem met with OpenBSD. This issue appears with commit e70669ab because before it, the decoding was done internally to kvm and after it is done by x86_emulate.c (which doesn't do it correctly). Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
This code has gone to wrong place in the file. Moving it back to right location. Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 13 10月, 2007 11 次提交
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由 Nitin A Kamble 提交于
Implement emulation of instruction: popf opcode: 0x9d Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Some operand fetches are less than the machine word size and can result in stale bits if used together with operands of different sizes. Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Implement emulation of instruction: jump absolute r/m opcode: 0xff /4 Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Implement emulation of instruction lea r16/r32, m opcode: 0x8d: Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Implement emulation of more jump conditional instructions jcc shortrel opcodes: 0x70 - 0x7f Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Implement emulation of instruction: jump conditional rel opcodes: 0x0f 0x80 - 0x0f 0x8f Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Implement emulation of instruction pushf opcode: 0x9c Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Implement emulation of instruction opcode: 0xe8 call (near) Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Implement the instruction push imm8 opcode: 0x6a Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Ehrhardt 提交于
This patch just renames the current (misnamed) _arch namings to _x86 to ensure better readability when a real arch layer takes place. Signed-off-by: NChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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