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Cyrill Gorcunov [Fri, 26 Mar 2010 15:48:11 +0000 (18:48 +0300)]
Makefile: Add CPPFLAGS handling
Some developers may need to pass specific flags
to compiler, usually due to different include/
directory and etc. So add well known CPPFLAGS
here.
Example:
$ CPPFLAGS="-I/home/include" make
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Fri, 26 Mar 2010 15:24:39 +0000 (17:24 +0200)]
Fix up 'ip' in kvm__reset_vcpu() to take real mode into account
We can't just set 'rip' to 1 MB mark because in real mode, 'ip' is just 16 bits
wide.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 25 Mar 2010 19:16:53 +0000 (21:16 +0200)]
Improve KVM register dump output
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 25 Mar 2010 19:15:27 +0000 (21:15 +0200)]
Fix LDT descriptor type for KVM_SET_SREG
This patch fixes the KVM_EXIT_UNKNOWN error when running bzImage.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 25 Mar 2010 18:37:48 +0000 (20:37 +0200)]
Setup segmentation for the guest
This patch adds segmentation setup for the guest. It's not perfect yet as we
get KVM_EXIT_UNKNOWN but it's a start nevertheless.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 25 Mar 2010 15:40:51 +0000 (17:40 +0200)]
Separate KVM code from the main loop
This patch separates the KVM code in its own file and cleans everything up a
bit while at it.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Wed, 24 Mar 2010 21:15:36 +0000 (00:15 +0300)]
Don't die on old kernels without single-step debug support
Better inform the user that the host kernel do not
support single-stepping debug.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Wed, 24 Mar 2010 21:14:25 +0000 (00:14 +0300)]
Add utility functions
Move helpers out to separate files.
Mostly borrowed from perf
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 20:16:07 +0000 (22:16 +0200)]
Enable KVM guest single-stepping
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 20:03:16 +0000 (22:03 +0200)]
Move KVM_SET_REGS to kvm__reset_vcpu()
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 19:33:45 +0000 (21:33 +0200)]
Dump KVM_EXIT_IO details
When KVM_RUN returns with KVM_EXIT_IO, dump the I/O details and exit.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 19:05:02 +0000 (21:05 +0200)]
Fix up rflags printing
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 18:08:21 +0000 (20:08 +0200)]
Setup rflags properly to fix EXIT_UNKNOWN
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 17:16:49 +0000 (19:16 +0200)]
Fix guest code printout
Doh, forgot to initialize 'c'...
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 17:04:31 +0000 (19:04 +0200)]
Show dump of executed code at KVM exit
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 16:49:32 +0000 (18:49 +0200)]
Print out constant names for KVM exit reasons
Things are way easier to debug that way.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 16:13:46 +0000 (18:13 +0200)]
Initialize RIP before starting to run the guest
Use the return value of load_kernel() to initialize RIP register before
starting the guest with KVM_RUN ioctl().
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 16:09:16 +0000 (18:09 +0200)]
Dump registers after KVM_RUN returns
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 15:57:08 +0000 (17:57 +0200)]
Update .gitignore to include object files
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 15:56:17 +0000 (17:56 +0200)]
Load bzImage to guest RAM
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 24 Mar 2010 15:19:28 +0000 (17:19 +0200)]
Initialize guest memory region properly
Use posix_memalign() to allocate memory for the guest and register the region
to KVM.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Tue, 23 Mar 2010 20:18:31 +0000 (22:18 +0200)]
Initial version of kernel image loading
This patch adds support for checking whether the provided kernel image is a
bzImage or not.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Tue, 23 Mar 2010 20:04:20 +0000 (22:04 +0200)]
Load kernel image to the VM
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Tue, 23 Mar 2010 19:57:32 +0000 (21:57 +0200)]
Move CPU emulation code to cpu.c
The kvm.c file is getting bigger so move CPU emulation code to a separate file.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Tue, 23 Mar 2010 19:51:54 +0000 (21:51 +0200)]
Mmap the kvm_run structure
Mmap the kvm_run structure and print out ->exit_reason in human-readable form
upon exit to make it more visible what's happening after KVM_RUN ioctl() is
called.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Tue, 23 Mar 2010 19:30:48 +0000 (21:30 +0200)]
Clean up struct kvm file descriptor names
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Tue, 23 Mar 2010 19:24:59 +0000 (21:24 +0200)]
Set up TSS address to make vcpu creation work
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Tue, 23 Mar 2010 05:38:07 +0000 (07:38 +0200)]
Initialize KVM some more
This patch adds some more KVM initialization code. Doesn't work yet, though.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Mon, 22 Mar 2010 21:39:40 +0000 (23:39 +0200)]
Clean up KVM initialization
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Mon, 22 Mar 2010 21:34:02 +0000 (23:34 +0200)]
Check for KVM_CAP_USER_MEMORY
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Mon, 22 Mar 2010 21:30:10 +0000 (23:30 +0200)]
Move KVM fds into 'struct kvm'
This patch introduces a 'struct kvm' and moves the KVM related file descriptors
into it so that we can introduce helper functions more easily.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Mon, 22 Mar 2010 21:12:14 +0000 (23:12 +0200)]
Create a VM using ioctl(KVM_CREATE_VM)
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Mon, 22 Mar 2010 21:06:27 +0000 (23:06 +0200)]
Add .gitignore file
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Mon, 22 Mar 2010 21:05:28 +0000 (23:05 +0200)]
Check for KVM_API_VERSION at init
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Mon, 22 Mar 2010 19:25:28 +0000 (21:25 +0200)]
Initial commit
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>