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fdae862f XZ |
1 | Currently, kvm module in EXPERIMENTAL stage on IA64. This means that |
2 | interfaces are not stable enough to use. So, plase had better don't run | |
3 | critical applications in virtual machine. We will try our best to make it | |
4 | strong in future versions! | |
5 | Guide: How to boot up guests on kvm/ia64 | |
6 | ||
7 | This guide is to describe how to enable kvm support for IA-64 systems. | |
8 | ||
9 | 1. Get the kvm source from git.kernel.org. | |
10 | Userspace source: | |
11 | git clone git://git.kernel.org/pub/scm/virt/kvm/kvm-userspace.git | |
12 | Kernel Source: | |
13 | git clone git://git.kernel.org/pub/scm/linux/kernel/git/xiantao/kvm-ia64.git | |
14 | ||
15 | 2. Compile the source code. | |
16 | 2.1 Compile userspace code: | |
17 | (1)cd ./kvm-userspace | |
18 | (2)./configure | |
19 | (3)cd kernel | |
20 | (4)make sync LINUX= $kernel_dir (kernel_dir is the directory of kernel source.) | |
21 | (5)cd .. | |
22 | (6)make qemu | |
23 | (7)cd qemu; make install | |
24 | ||
25 | 2.2 Compile kernel source code: | |
26 | (1) cd ./$kernel_dir | |
27 | (2) Make menuconfig | |
28 | (3) Enter into virtualization option, and choose kvm. | |
29 | (4) make | |
30 | (5) Once (4) done, make modules_install | |
31 | (6) Make initrd, and use new kernel to reboot up host machine. | |
32 | (7) Once (6) done, cd $kernel_dir/arch/ia64/kvm | |
33 | (8) insmod kvm.ko; insmod kvm-intel.ko | |
34 | ||
35 | Note: For step 2, please make sure that host page size == TARGET_PAGE_SIZE of qemu, otherwise, may fail. | |
36 | ||
37 | 3. Get Guest Firmware named as Flash.fd, and put it under right place: | |
38 | (1) If you have the guest firmware (binary) released by Intel Corp for Xen, use it directly. | |
39 | ||
40 | (2) If you have no firmware at hand, Please download its source from | |
41 | hg clone http://xenbits.xensource.com/ext/efi-vfirmware.hg | |
42 | you can get the firmware's binary in the directory of efi-vfirmware.hg/binaries. | |
43 | ||
44 | (3) Rename the firware you owned to Flash.fd, and copy it to /usr/local/share/qemu | |
45 | ||
46 | 4. Boot up Linux or Windows guests: | |
47 | 4.1 Create or install a image for guest boot. If you have xen experience, it should be easy. | |
48 | ||
49 | 4.2 Boot up guests use the following command. | |
50 | /usr/local/bin/qemu-system-ia64 -smp xx -m 512 -hda $your_image | |
51 | (xx is the number of virtual processors for the guest, now the maximum value is 4) | |
52 | ||
53 | 5. Known possibile issue on some platforms with old Firmware. | |
54 | ||
55 | If meet strange host crashe issues, try to solve it through either of the following ways: | |
56 | ||
57 | (1): Upgrade your Firmware to the latest one. | |
58 | ||
59 | (2): Applying the below patch to kernel source. | |
60 | diff --git a/arch/ia64/kernel/pal.S b/arch/ia64/kernel/pal.S | |
61 | index 0b53344..f02b0f7 100644 | |
62 | --- a/arch/ia64/kernel/pal.S | |
63 | +++ b/arch/ia64/kernel/pal.S | |
64 | @@ -84,7 +84,8 @@ GLOBAL_ENTRY(ia64_pal_call_static) | |
65 | mov ar.pfs = loc1 | |
66 | mov rp = loc0 | |
67 | ;; | |
68 | - srlz.d // seralize restoration of psr.l | |
69 | + srlz.i // seralize restoration of psr.l | |
70 | + ;; | |
71 | br.ret.sptk.many b0 | |
72 | END(ia64_pal_call_static) | |
73 | ||
74 | 6. Bug report: | |
75 | If you found any issues when use kvm/ia64, Please post the bug info to kvm-ia64-devel mailing list. | |
76 | https://lists.sourceforge.net/lists/listinfo/kvm-ia64-devel/ | |
77 | ||
78 | Thanks for your interest! Let's work together, and make kvm/ia64 stronger and stronger! | |
79 | ||
80 | ||
81 | Xiantao Zhang <xiantao.zhang@intel.com> | |
82 | 2008.3.10 |