tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
KVM: ia64: Add a guide about how to create kvm guests on ia64
Guide for creating virtual machine on kvm/ia64.
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
authored by
Xiantao Zhang
and committed by
Avi Kivity
fdae862f
b693919c
+82
+82
Documentation/ia64/kvm.txt
+82
Documentation/ia64/kvm.txt
···
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