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Changes v6 to v7: summary of changes. George Dunlap: Any doc about this? Added reference to: https://sites.google.com/site/chitchatvmback/backdoor Last updated: Feb. 2008 George Dunlap & Jan Beulich Too much logging and tracing. Dropped a lot of it. This includes vmport_debug= Ian Campbell: Any reason RPC code cannot be done in QEMU? Not that I know of, so dropped all parts of RPC code. Default handling of hvm.vga.kind bad. Fixed. Default of vmware_port should be based on vmware_hw. Done. Tim Deegan: CPL check of GETHZ needs to be fixed somewhere. Added check for CPL == 0 (assuming this is what VMware is checking. Matches the testing. Ian Campbell, Andrew Cooper, George Dunlap, Boris Ostrovsky, & Jan Beulich Various minor fixes. Per patch notes: #1 "xen: Add support for VMware cpuid leaves": Prevent setting of HVM_PARAM_VIRIDIAN if HVM_PARAM_VMWARE_HW set. #4 "xen: Add vmware_port support": More on AMD in the commit message. Switch to only change 32bit part of registers, what VMware does. #6 "Add xentrace to vmware_port": Dropped some of the new traces. Added HVMTRACE_ND7. #7 "Add xen-hvm-param": Was a later patch. Still optional. Fixed formatting. Adjust for drop of VMware RPC. Comments on v3, v4, v5, v6: George Dunlap: Is there any reason not to merge 05/16 with 03/16? The reason I have is that v3 03/16 only contains new files. 2 from VMware and 1 to allow use of the VMware files. I added xen/arch/x86/hvm/vmware/includeCheck.h at the request of Konrad Wilk. This patch has many style issues and white space issues. So I want it as a separate patch so as to be clear on what files do not meet the coding style. And why and where they came from. Changes v5 to v6: Boris Ostrovsky & Jan Beulich #4 "xen: Add vmware_port support": #6 "xen: Convert vmware_port to xentrace usage": There is an issue with reading instruction bytes more then once. Dropped the attempt to use svm_nextrip_insn_length via __get_instruction_length (added in v2). Just always look at upto 15 bytes on AMD. Changes v4 to v5: Re tagged the optional patches. Added debug=y build checking that vmx is defining VM_EXIT_INTR_ERROR_CODE. Boris Ostrovsky: #1 "xen: Add support for VMware cpuid leaves": Given how is_viridian and is_vmware are defined I think '||' is more appropriate. Fixed. #4 "xen: Add is_vmware_port_enabled": we should make sure that svm_vmexit_gp_intercept is not executed for any other guest. Added an ASSERT on is_vmware_port_enabled. magic integers? Added #define for them. #6 "xen: Convert vmware_port to xentrace usage": exitinfo1 is used twice. Fixed. #7 "tools: Convert vmware_port to xentrace usage": 'bytes = 0x%(2)d' or 'bytes = %(2)d' ? Fixed. #8 "xen: Add limited support of VMware's hyper-call rpc": PV vs. HVM vs. PVH. So probably 'if(is_hvm_vcpu)'? I see no reason to exclude PVH. Will change to has_hvm_container_vcpu #11 "Add live migration of VMware's hyper-call": You ASSERTed that vg->key_len is 1 so you may not need the 'if'. That is a ASSERT(sizeof, not just ASSERT -- not changed. Use real errno, not -1. Fixed. No ASSERT in vmport_load_domain_ctxt Added. Jan Beulich & Boris Ostrovsky: #8 "xen: Add limited support of VMware's hyper-call rpc": The names of all three functions are bogus. removed static support routines. Also changed in #1. Andrew Cooper: #2 "tools: Add vmware_hw support": Anything looking for Xen according to the Xen cpuid instructions... Adjusted doc to new wording. #4 "xen: Add is_vmware_port_enabled": I am fairly certain that you need some brackets here. Added brackets. Jan Beulich & Andrew Cooper: #1 "xen: Add support for VMware cpuid leaves": This hunk is unrelated, but is perhaps something better fixed. Added to commit message. include <xen/types.h> (IIRC) please. Done. At least 1 pair of brackets please, especially as the placement of brackets affects the result of this particular calculation. Switch to "1000000ull / APIC_BUS_CYCLE_NS" Changes v3 to v4: Ian Campbell: Report on both viridian and vmware_hw set. Added LIBXL_VGA_INTERFACE_TYPE_VMWARE (vga=vmware). Andrew Cooper: Add doc for hypervisor-cpuid. Boris Ostrovsky: Changing regs->error_code may not be a good idea. Dropped this. Jan Beulich & Boris Ostrovsky: Only enable vmwxit for GP when vmware_port is set. Done. Changes v2 to v3: Add optional unit test tools. Re-worked split of changes. Jan Beulich: for #0: I don't think you should be adding a new fine in hvm/ _and_ a new subdirectory. Moved all files to hvm/vmware that contain code. for old #1 (now #1 & #2): Is there really a point in enabling both Viridian and VMware extensions? I still think so. hvmloader change: This needs an explanation Dropped as not need now. Can you make vmware_hw similar to Viridian, returning success when setting the value to what it already is. Done. You don't seem to be using sub_idx: ... Dropped. Extra changes... Dropped. for old #2 (now #3): ... these guards have the (theoretical at this point) risk of clashing ... the patch is obviously incomplete without this header... Did not fix any of these issues. I will stick with this needs to be a 2nd patch that changes the include files to better fit in Xen coding. For now these files are in a sub directory which is not part of the normal include search. Moved the includeCheck.h file into this patch. for old #3 (now #4, #5, #6, #7, #8, #9, #10, #11) As I think was said on v1 already - this should be split into smaller pieces ... Done. All this would very likely better go into a separate function placed in vmport.c. Moved most of the code into vmport.c or vmport_rpc.c. In any event I'm rather uncomfortable about vmware_port getting enabled unconditionally, ... Added vmware_port (done in new patches #4, #5) as an xl.cfg option. You'll have to go through and fix coding style issues. I think I have found all these, but since they do not stand out for me, let me know of any left. "MAKE_INSTR(IN," name is ambiguous. Added all 4 opcodes for in and out that can access this port: INB_DX, INL_DX, OUTB_DX, OUTL_DX. A VMX-specific function shouldn't be named this way... Added new common routine vmport_gp_check() that is called from both vmx.c and svm.c which is where all the logic about checking for IN ans OUT is done. Also fixed naming and added static. Ah, here we go (as to using HVM_DBG_LOG()): Isn't this _way_ too fine grained? I have reduced the number of bits used. Partialy by switching some to xentrace (new patch #6 and #7). Right, and zero is an indication that it wasn't found. Also I just noticed there's a gdprintk() in that event, which for all other ... Made the gdprintk() optional. End of v3 changes. This is a small part of the changes needed to allow running Linux and windows (and others) guests that were built on VMware and run run them unchanged on Xen. This small part is the start of Xen support of VMware backdoor I/O port which is how VMware tools (a standard addition installed on a guest) communicates to the hypervisor. I picked this subset to start with because it only has changes in Xen. Some of this code is already in QEMU and so KVM has some of this already. QEMU supported backdoor commands include VMware mouse support. A later patch set exists that links these changes, new code and Xen changes to QEMU to provide VMware mouse support under Xen. The important part is that VMware mouse is an absolute position mouse and so network delays do not effect usage of the virtual mouse. For example from the guest: [root@C63-min-tools ~]# vmtoolsd --cmd "info-get guestinfo.joejoel" No value found [root@C63-min-tools ~]# vmtoolsd --cmd "info-set guestinfo.joejoel short" [root@C63-min-tools ~]# vmtoolsd --cmd "info-get guestinfo.joejoel" short [root@C63-min-tools ~]# vmtoolsd --cmd "info-set guestinfo.joejoel long222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000joel" [root@C63-min-tools ~]# vmtoolsd --cmd "info-get guestinfo.key1" data1 [root@C63-min-tools ~]# vmtoolsd --cmd "info-get guestinfo.key2" No value found [root@C63-min-tools ~]# vmtoolsd --cmd "info-get guestinfo.key2" data2 [root@C63-min-tools ~]# Most of this code has been reverse engineered by looking at source code for Linux and open VMware tools. http://open-vm-tools.sourceforge.net changes RFC to v2: Jan Beulich: Add xen/arch/x86/hvm/vmware.c for cpuid_vmware_leaves Fewer patches Andrew Cooper: use the proper constant for apic_khz Follow 839b966e3f587bbb1a0d954230fb3904330dccb6 style changes. Changed HVM_PARAM_VMWARE_HW to write once (make is_vmware_domain() more static). Dropped vmport status stuff. Added checks for xzalloc() having failed. You should include backdoor_def.h ... Every thing I tried did not work better. So I did not change VMPORT_PORT and BDOOR_PORT being the same value. I did not try and adjust VMware's include file backdoor_def.h to working in other xen source files. Switching to s_time_t is not valid. get_sec() is defined: unsigned long get_sec(void); and so my uses of it should be using unsigned long. However since that is not a fixed width type, I used the uint64_t data type which is almost the same, but does allow the 32 bit build of libxc, libxl to do the correct thing. Konrad Rzeszutek Wilk: Please don't include the address. It should be, etc about the Vmware provided include files. I went with no changes to these files. Even if the files should be changed to match xen coding style, etc I still feel that the original ones should be added via a patch, and then adjusted in a 2nd patch. Can you use XenBus? I would say no. XenBus (and XenStore) is about domain to domain communication. This is about VMware's hyper-call and providing access to VMware's guest info very low speed access. Olaf Hering: Dropped changing of bios-strings. Still needs some documentation about this may be needed to do in a tool stack or set of commands. Boris Ostrovsky: Use svm_nextrip_insn_length() Looks like __get_instruction_length() does this, so switched to __get_instruction_length(). RFC: See http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009458 for info on detecting VMware. Linux does not follow this exactly. It checks for CPUID 1st. If that fails, it checks for SMBIOS containing "VMware" (not VMware- or VMW). So this patch set provides: SMBIOS -- Add string VMware- CPUID -- Add VMware's CPUID (Note: currently HyperV (viridian support) breaks this check.) Add the magic VMware port Allow VMware tools poweroff and reboot Enable access to VMware's guest info Provide the VMware tools build number Don Slutz (7): xen: Add support for VMware cpuid leaves tools: Add vmware_hw support vmware: Add VMware provided include files. xen: Add vmware_port support tools: Add vmware_port support Add xentrace to vmware_port Add xen-hvm-param .gitignore | 1 + docs/man/xl.cfg.pod.5 | 36 +++- docs/misc/hypervisor-cpuid.markdown | 30 ++++ tools/libxc/xc_domain_restore.c | 14 ++ tools/libxc/xc_domain_save.c | 11 ++ tools/libxc/xg_save_restore.h | 2 + tools/libxl/libxl.h | 15 ++ tools/libxl/libxl_create.c | 21 ++- tools/libxl/libxl_dm.c | 12 +- tools/libxl/libxl_dom.c | 2 + tools/libxl/libxl_internal.h | 3 +- tools/libxl/libxl_types.idl | 3 + tools/libxl/xl_cmdimpl.c | 7 +- tools/misc/Makefile | 7 +- tools/misc/xen-hvm-param.c | 169 +++++++++++++++++++ tools/xentrace/formats | 5 + xen/arch/x86/domain.c | 2 + xen/arch/x86/hvm/Makefile | 3 +- xen/arch/x86/hvm/hvm.c | 36 ++++ xen/arch/x86/hvm/svm/emulate.c | 2 +- xen/arch/x86/hvm/svm/svm.c | 30 ++++ xen/arch/x86/hvm/svm/vmcb.c | 2 + xen/arch/x86/hvm/vmware/Makefile | 2 + xen/arch/x86/hvm/vmware/backdoor_def.h | 167 +++++++++++++++++++ xen/arch/x86/hvm/vmware/cpuid.c | 89 ++++++++++ xen/arch/x86/hvm/vmware/includeCheck.h | 17 ++ xen/arch/x86/hvm/vmware/vmport.c | 296 +++++++++++++++++++++++++++++++++ xen/arch/x86/hvm/vmx/vmcs.c | 2 + xen/arch/x86/hvm/vmx/vmx.c | 63 ++++++- xen/arch/x86/hvm/vmx/vvmx.c | 3 + xen/arch/x86/traps.c | 8 +- xen/common/domctl.c | 3 + xen/include/asm-x86/hvm/domain.h | 3 + xen/include/asm-x86/hvm/hvm.h | 3 + xen/include/asm-x86/hvm/io.h | 2 +- xen/include/asm-x86/hvm/svm/emulate.h | 1 + xen/include/asm-x86/hvm/trace.h | 22 +++ xen/include/asm-x86/hvm/vmport.h | 52 ++++++ xen/include/asm-x86/hvm/vmware.h | 33 ++++ xen/include/public/domctl.h | 3 + xen/include/public/hvm/params.h | 5 +- xen/include/public/trace.h | 3 + xen/include/xen/sched.h | 3 + 43 files changed, 1172 insertions(+), 21 deletions(-) create mode 100644 docs/misc/hypervisor-cpuid.markdown create mode 100644 tools/misc/xen-hvm-param.c create mode 100644 xen/arch/x86/hvm/vmware/Makefile create mode 100644 xen/arch/x86/hvm/vmware/backdoor_def.h create mode 100644 xen/arch/x86/hvm/vmware/cpuid.c create mode 100644 xen/arch/x86/hvm/vmware/includeCheck.h create mode 100644 xen/arch/x86/hvm/vmware/vmport.c create mode 100644 xen/include/asm-x86/hvm/vmport.h create mode 100644 xen/include/asm-x86/hvm/vmware.h -- 1.8.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel

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[Xen-devel] [PATCH for-4.5 v7 0/7] Xen VMware tools support