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Pekka Enberg [Sun, 11 Apr 2010 09:37:54 +0000 (12:37 +0300)]
kvm: Set up MAXPHYADDR guest CPUID
As explained by Avi Kivity, we need to set up MAXPHYADDR for the guest to avoid
a triple fault when the guest tries to enter long mode. This fixes the
KVM_EXIT_SHUTDOWN problem I was seeing on my machine.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 06:28:14 +0000 (09:28 +0300)]
kvm: Dump page tables at exit
To make debugging more easy, dump page tables at exit as suggested by Avi
Kivity.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 8 Apr 2010 18:53:07 +0000 (21:53 +0300)]
kvm: Dump stack on KVM oops
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 8 Apr 2010 18:45:24 +0000 (21:45 +0300)]
kvm: Show gdt and idt registers
As suggested by Avi Kivity, dump 'gdt' and 'idt' registers as well.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Thu, 8 Apr 2010 17:53:13 +0000 (21:53 +0400)]
kvm: Reference to undefined variable
We may have cmdline_size not initialized before use. Fix it.
Reported-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 8 Apr 2010 18:02:34 +0000 (21:02 +0300)]
kvm: Add .gitignore for bios build files
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 8 Apr 2010 17:44:37 +0000 (20:44 +0300)]
kvm: Setup VCPU MSRs
Use the KVM_SET_MSRS ioctl() to set up model-specific registers (MSRs) to a
known state. The MSRs are initialized to zero for now because I'm not sure
what are the right values.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 8 Apr 2010 17:42:32 +0000 (20:42 +0300)]
kvm: Clean up kvm__reset_vcpu() function
This patch splits kvm__reset_vcpu() into three separate helper functions to
make the function more readable.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 8 Apr 2010 17:19:41 +0000 (20:19 +0300)]
kvm: Add test binaries to .gitignore
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 8 Apr 2010 17:19:12 +0000 (20:19 +0300)]
kvm: Clean up Makefile output
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Fri, 2 Apr 2010 21:46:11 +0000 (01:46 +0400)]
kvm: Update command line related enitites in boot parameters
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Fri, 2 Apr 2010 21:16:51 +0000 (01:16 +0400)]
kvm: Add copying of kernel command line into guest memory
We will need to modify heap pointer in guest.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Thu, 1 Apr 2010 17:23:18 +0000 (21:23 +0400)]
bios: Add bios stubs generated from assembly files
We substitute hardcoded fake bios handlers with ones generated
from assembly sources. This way we may extend them if needed.
In particular new int0x10 handler just write output into video
guest memory so the node machine may read the output anytime
it needs (though, to be fair, the kernel uses int0x10 only once
at bootup procedure if there was an attempt to boot directly
from disk/floppy, any other output is done via video port I/O
which is not implemented yet).
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Thu, 1 Apr 2010 15:51:46 +0000 (19:51 +0400)]
interrupt: Move bios related constants to kvm/bios.h
This will allow us to share them between assembly code
and C code as well.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Wed, 31 Mar 2010 19:57:12 +0000 (23:57 +0400)]
kvm: Introduce kvm__dump_mem helper
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Thu, 1 Apr 2010 15:23:21 +0000 (19:23 +0400)]
interrupt: Add interrupt_table__set helper
In case if some particular interrupt entry needs
to be modified we should use interrupt_table__set
helper.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Wed, 31 Mar 2010 19:45:15 +0000 (23:45 +0400)]
bios: Add simple bin2c converter
We will need it to convert binary data into compilable C code.
It's pretty trivial.
Signed-off-by: Tobias Brox <tobixen@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Pekka Enberg [Thu, 1 Apr 2010 14:45:26 +0000 (17:45 +0300)]
kvm: Free memory on exit
Free memory on exit so that valgrind reports are easier to read.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 1 Apr 2010 14:32:38 +0000 (17:32 +0300)]
kvm: Fix protected mode code dump
This patch fixes protected mode code dump not to take 16-bit segment selector
into account when calculating the guest flat address.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 1 Apr 2010 14:23:38 +0000 (17:23 +0300)]
kvm: Ignore PIC init during boot
We don't have interrupt injection so we can safely ignore PIC interrupt masking
during bootup.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 1 Apr 2010 14:18:58 +0000 (17:18 +0300)]
kvm: Ignore math co-processor reset I/O writes
The Linux kernel resets math co-processor when entering protected mode. Ignore
the reset for now so kernel boot doesn't stop there.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Thu, 1 Apr 2010 13:35:38 +0000 (16:35 +0300)]
kvm: Setup guest FPU state
Use the KVM_SET_FPU ioctl() to set up guest initial FPU state.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 31 Mar 2010 18:55:49 +0000 (21:55 +0300)]
kvm: Remove unused cpu.c file
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 31 Mar 2010 18:35:27 +0000 (21:35 +0300)]
kvm: Add simple NMI enable/disable support
This patch adds simple NMI I/O port emulation.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 31 Mar 2010 18:11:30 +0000 (21:11 +0300)]
kvm: Don't abort guest on KVM_EXIT_IO
This is a preparational step for emulating IO.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 31 Mar 2010 18:08:16 +0000 (21:08 +0300)]
kvm: Extract ioport emulation code to its own file
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 31 Mar 2010 17:59:54 +0000 (20:59 +0300)]
kvm: Extract CPUID code into its own file
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 31 Mar 2010 17:52:12 +0000 (20:52 +0300)]
kvm: Enable GCC debugging information
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 31 Mar 2010 16:45:23 +0000 (19:45 +0300)]
kvm: Setup CPUID for the guest
This patch sets up guest CPUID which is based on host CPUID.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 31 Mar 2010 16:19:23 +0000 (19:19 +0300)]
kvm: Introduce --single-step command line option
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Tue, 30 Mar 2010 19:26:29 +0000 (23:26 +0400)]
kvm: Put fake bios interrupt handlers into known memory area
Instead of hacking boot protocol header better to place interrupt handlers into
BDA.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Mon, 29 Mar 2010 15:47:31 +0000 (19:47 +0400)]
kvm: Rename ivt_ prefixed entities
Though ivt stands for interrupt vector table it's not that clear, lets use
real_intr_desc for that.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 28 Mar 2010 16:54:24 +0000 (19:54 +0300)]
kvm: Move util.h to include/kvm directory
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 28 Mar 2010 16:45:08 +0000 (19:45 +0300)]
kvm: Clean up interrupt_table__setup()
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 28 Mar 2010 16:41:48 +0000 (19:41 +0300)]
kvm: Move interrupt table to struct kvm
This patch moves the global interrupt table to struct kvm.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 28 Mar 2010 16:35:32 +0000 (19:35 +0300)]
kvm: Remove unnecessary includes from interrupt.c
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 28 Mar 2010 16:34:30 +0000 (19:34 +0300)]
kvm: Clean up kvm/interrupt.h a bit
Add include guards to the header file and remove unnecessary #includes.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 28 Mar 2010 16:33:16 +0000 (19:33 +0300)]
kvm: Rename interrupt emulation source files
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 28 Mar 2010 15:53:30 +0000 (19:53 +0400)]
kvm: Fill up fake IVT
Fill up fake IVT to point to 2 bytes opcodes of "sti,iret". Since they have to
live somewhere in guest memory we use _pad entry from boot_params space.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 28 Mar 2010 15:10:03 +0000 (19:10 +0400)]
kvm: Setup fake IVT table
Setup fake interrupt handlers for real mode, it consists of iret opcode only.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 28 Mar 2010 14:45:51 +0000 (18:45 +0400)]
kvm: Introduce IVT handling
Introduce procedures for handling IVT (Interrupt Vector Table) to be used int
real mode bootstrap procedure.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 28 Mar 2010 10:35:06 +0000 (14:35 +0400)]
kvm: Add --params option
In particular this will keep boot agruments for kernel. The commit technically
prepares ground for real argument pass.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 28 Mar 2010 10:27:44 +0000 (14:27 +0400)]
kvm: Add --kernel parameter handling
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 28 Mar 2010 14:21:05 +0000 (18:21 +0400)]
kvm: Fixup boot selector
The boot selector for modern boot protocol is 64K not 4K.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sat, 27 Mar 2010 20:12:10 +0000 (23:12 +0300)]
kvm: Use 64 bit names when showing registers
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sat, 27 Mar 2010 19:11:26 +0000 (22:11 +0300)]
kvm: load_bzimage: Proper check for number of setup sectors
We should check for the number of setup sectors before adding the last one.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 18:55:27 +0000 (20:55 +0200)]
kvm: Introduce host_real_to_guest() helper function
Introduce a new host_real_to_guest() helper function and use it to clean up
code.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 18:46:33 +0000 (20:46 +0200)]
kvm: Setup stack for the kernel
The Linux kernel expects stack to be set up for it. Fixes a bug in the program
where we start to run an instruction stream filled with zeros.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 18:23:35 +0000 (20:23 +0200)]
kvm: Load kernel at 0x1000
As described in Documentation/x86/boot.txt, memory starting at 0x1000 is
available for the boot loader. As we don't have a separate boot loader, load
the kernel at the address. Note: we're setting up the segment selector here so
0x0100:0x0000 in 16-bit real mode is 0x1000 in physical memory.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 18:16:51 +0000 (20:16 +0200)]
kvm: Fix kernel boot IP
Booting to a Linux kernel is no longer supported. Therefore, start executing
at offset 0x200 of bzImage which has a jump to real-mode setup code. See
Documentation/x86/boot.txt for more details.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 18:05:04 +0000 (20:05 +0200)]
kvm: Remove 'reset vector' hack
As explained by Avi Kivity, KVM on Intel requires segment 'base' to equal to
'selector * 16'. Fix that up and remove the 'reset vector' hack.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 17:59:52 +0000 (19:59 +0200)]
kvm: Fix setup size calculation
I need a brown paper bag. When converting sectors to bytes, we need to shift
by 9 ("512"), not 4 ("16")...
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 16:56:38 +0000 (18:56 +0200)]
Revert "kvm: Enable 'interrupt request window'"
This reverts commit
c1a099311e695bfe1caca9a11e294fbd70d3ba11 . Interrupt
request windows are for host to guest interrupt injection. Software interrupts
and traps happen 100% in the guest.
Pekka Enberg [Sat, 27 Mar 2010 12:13:25 +0000 (14:13 +0200)]
kvm: Enable 'interrupt request window'
This patch enables KVM 'interrupt request window' so that KVM_RUN returns when
we hit an interrupt.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 09:15:31 +0000 (11:15 +0200)]
kvm: Document the 'reset vector' hack
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 09:08:32 +0000 (11:08 +0200)]
kvm: Clean up reset vector setup code
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 08:58:58 +0000 (10:58 +0200)]
kvm: Add some single-step debugging and don't stop running
Now that we can execute some instructions, don't stop on first single step but
dump some debugging output instead and continue running.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 08:53:15 +0000 (10:53 +0200)]
kvm: Hardcode a "reset vector" at f000:fff0
It seems that if we attempt to run code at any other location than f000:fff0,
we get an KVM_EXIT_UNKNOWN error. To work around that, hardcode a "reset
vector" at f000:fff0 that jumps to 0000:0x7c000 and load the kernel at the
latter location.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 08:15:18 +0000 (10:15 +0200)]
kvm: Read the whole bzImage to memory
We need to read the whole bzImage to memory; otherwise we miss some of the
setup code.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 07:54:58 +0000 (09:54 +0200)]
kvm: Fix bzImage setup sector default count
If setup sectors is zero, the real value is 4 as per
Documentation/x86/boot.txt.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 27 Mar 2010 07:34:00 +0000 (09:34 +0200)]
kvm: Load bzImage real-mode boot sector and setup code
We start KVM in 16-bit mode so we should set cs:ip to point to the real-mode
boot sector and setup code, not the protected mode kernel that starts at 1M.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Fri, 26 Mar 2010 19:51:55 +0000 (21:51 +0200)]
Add support for loading flat binaries
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Fri, 26 Mar 2010 19:40:46 +0000 (21:40 +0200)]
Add a simple "kernel" binary that can be used for testing
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Fri, 26 Mar 2010 18:12:48 +0000 (21:12 +0300)]
Add info() helper
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Fri, 26 Mar 2010 16:36:30 +0000 (18:36 +0200)]
Print 'avl' bits of a segment
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
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>