]>
git.karo-electronics.de Git - karo-tx-linux.git/log
Pekka Enberg [Thu, 8 Jul 2010 18:27:35 +0000 (21:27 +0300)]
kvm: BIOS E820 memory map emulation
This patch adds BIOS E820 memory map emulation to KVM.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Thu, 8 Jul 2010 15:00:07 +0000 (19:00 +0400)]
kvm, bios: Rework BIOS setup
This is a really huge rework of our primitive BIOS emulator.
The initial idea was to implement stack management in BIOS
irq handlers. In turn it ends up in re-factoring of all BIOS
code.
Some code details
-----------------
1) BIOS stack is placed at predefined constant memory address.
2) BIOS stack is only 64 bytes deep. It must be enough even for
future irq handlers.
3) To be able to place irq handlers at almost arbitrary place of
guest memory their start address must be 16 byte aligned.
This makes easy to compute irq routines local variables addresses.
4) To eliminate address relocations in irq handlers code we use a
special loader script.
TODO
----
- Still needs e820 map implements, int15 is dummy at moment
P.S. Thanks H. Peter Anvin for advices.
[ penberg@cs.helsinki.fi: cleanups ]
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Thu, 8 Jul 2010 11:05:46 +0000 (15:05 +0400)]
Exclude .cscope from .gitignore
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Wed, 7 Jul 2010 19:19:34 +0000 (23:19 +0400)]
kvm, bios: Get rid of buggy int10 handler
At moment any BIOS code using which needs own stack
have to be remade. It's a bit not that easy task.
We're happily may live without int10 handler since we
switch to early_printk interface really early. And
actually we don't scan VGA memory anyway so that even
if there is something written we ignore the result.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Pekka Enberg [Mon, 5 Jul 2010 19:16:54 +0000 (22:16 +0300)]
kvm: Cleanup struct boot_params setup
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Mon, 5 Jul 2010 18:43:17 +0000 (21:43 +0300)]
kvm: Cleanup kvm__cpu_supports_vm()
This patch cleans up kvm__cpu_supports_vm() by unifying the VMX and SVM paths.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Mon, 5 Jul 2010 17:10:48 +0000 (21:10 +0400)]
kvm: Check for SVM extension being supported for AMD cpus
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Asias He [Mon, 5 Jul 2010 06:01:11 +0000 (14:01 +0800)]
kvm: Check vmx capability using cpuid
[ penberg@cs.helsinki.fi: use host_cpuid(), cleanups ]
Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 18:57:14 +0000 (21:57 +0300)]
kvm: Introduce '--kvm-dev' command line option
This patch introduces a '--kvm-dev' command line option for debugging purposes.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 16:24:35 +0000 (19:24 +0300)]
kvm: Introduce 'make devices' target
This patch adds a 'make devices' target to Makefile that sets up KVM device if
one does not exist in '/dev/kvm'.
Suggested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 11:13:20 +0000 (14:13 +0300)]
kvm: Fix compilation warning
This patch fixes the following compilation warning:
main.c: In function ‘main’:
main.c:149: warning: label ‘out’ defined but not used
Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 11:02:05 +0000 (14:02 +0300)]
kvm: Don't stop on ioport errors by default
This patch introduces a '--ioport-debug' option that preserves the old
stop-on-error behavior and changes the default to keep on running despite of
ioport errors. This allows Linux kernel to boot to VFS mount phase.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 10:59:10 +0000 (13:59 +0300)]
kvm: Add '--params' to usage
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 10:41:45 +0000 (13:41 +0300)]
kvm: Add proper 00E0 ioport handling
We use 00E0 ioport for trapping to the hypervisor. This patch cleans up
handling of the ioport to call exit() in ioport emulation handler.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 10:35:30 +0000 (13:35 +0300)]
kvm: Cleanup ioport_ops table
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 10:32:20 +0000 (13:32 +0300)]
kvm: Cleanup command line parsing
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 4 Jul 2010 10:18:59 +0000 (13:18 +0300)]
kvm: Use 'nopci pci=off' kernel parameters by default
As pointed out by Cyrill, use 'nopci pci=off' by default to avoid the need for
emulating PCI.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 4 Jul 2010 10:00:35 +0000 (14:00 +0400)]
kvm, cpuid: Use logical AND on bit ops
Otherwise we may push cleaned bits back.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Sat, 3 Jul 2010 20:52:41 +0000 (00:52 +0400)]
kvm, cpuid: Fill up func 0 and 4
Retun "qemu64" largest function number and set
cpu to GenueIntel, fill up cache info and rename
cpuid to host_cpuid since we may need to distinguish
which cpuid (host or guest) is called.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Sat, 3 Jul 2010 17:58:24 +0000 (21:58 +0400)]
kvm: KVM_CAP_EXT_CPUID is required
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Sat, 3 Jul 2010 15:21:33 +0000 (19:21 +0400)]
kvm, cpuid: Fix XSTOR and VMX compatibility in cpuid
Under virtual environment we don't support XSTOR and VMX features.
Reported-by: Asias He <asias.hejun.hj@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Thu, 10 Jun 2010 17:15:26 +0000 (21:15 +0400)]
kvm, tests: Use motherboard specific ports for testing
H. Peter Anvin suggested to use motherboard specific ports
for testing instead of ones well known. Thanks, Peter!
Reported-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Thu, 10 Jun 2010 16:55:40 +0000 (20:55 +0400)]
kvm: Add force exit from tests
To make so we write any value to port 0 and
start kvm in --dbgtest mode so we are expecting
for this exit.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Wed, 9 Jun 2010 20:05:07 +0000 (00:05 +0400)]
tests/pit: Increase PIT frequency up to 1KHz
Otherwise it's too boring ;)
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Wed, 9 Jun 2010 19:05:58 +0000 (23:05 +0400)]
kvm: Check for HTL extension granted
We need it thought it seems it doesn't work in
all our testcases.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Pekka Enberg [Wed, 9 Jun 2010 18:32:29 +0000 (21:32 +0300)]
kvm: Add 'check' target to Makefile
This patch adds a 'check' target to Makefile that can be used to run some
simple test cases.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 9 Jun 2010 18:30:56 +0000 (21:30 +0300)]
kvm, test: Improve PIT test output
This patch makes the PIT test output less verbose.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 9 Jun 2010 18:25:49 +0000 (21:25 +0300)]
kvm: Add .gitignore for tests
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Wed, 9 Jun 2010 18:25:18 +0000 (21:25 +0300)]
kvm: Add Makefile for compiling all test cases
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Wed, 9 Jun 2010 18:17:56 +0000 (22:17 +0400)]
test/pit: Fill up IDT with noop handler
To cover all IRQs.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Wed, 9 Jun 2010 17:24:32 +0000 (21:24 +0400)]
tests/pit: Issue cli on ISR handling
Better to not allow any nested maskable IRQs
while we handle timer irq.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Pekka Enberg [Tue, 8 Jun 2010 17:21:40 +0000 (20:21 +0300)]
kvm, test: Move PIT tests to separate directory
This patch moves PIT tests to separate directory and adds Makefile for it.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Asias He [Tue, 8 Jun 2010 12:46:51 +0000 (20:46 +0800)]
kvm, test: add a counter to tick test in ISR
when the counter reaches zero, ISR print "TESK OK" then issue a hlt.
Reported-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Asias He [Tue, 8 Jun 2010 12:46:50 +0000 (20:46 +0800)]
kvm, test: add PIT 8254 and PIC 8259 test code
8254 ticks at 100HZ.
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Asias He [Tue, 1 Jun 2010 16:41:59 +0000 (20:41 +0400)]
kvm__setup_sregs: fix indentation
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Sun, 30 May 2010 19:15:28 +0000 (23:15 +0400)]
early_printk: Simplify the code
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Asias He [Fri, 28 May 2010 07:48:19 +0000 (15:48 +0800)]
early_printk.c: add rep/outsb support
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Sun, 30 May 2010 18:33:27 +0000 (22:33 +0400)]
kvm: The command line storage should not be too short
At moment boot protocol may hold up to 2048 symbols
from command line we should provide the same compatibility
for --params option.
Reported-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Sun, 30 May 2010 18:23:55 +0000 (22:23 +0400)]
kvm: Append missing ending space for built-in command line
We have a predefined command line but when an user passes
additional parameters the last predefined argument and
first user's one get sticked together. Fix it by adding
ending space for built-in command line.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Sun, 30 May 2010 16:32:13 +0000 (20:32 +0400)]
kvm: Check for required KVM extensions in one place
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Asias He [Fri, 28 May 2010 07:48:17 +0000 (15:48 +0800)]
kvm: kvm__setup_sregs initialize more registers
This allow to boot bzImage
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Asias He [Fri, 28 May 2010 07:48:16 +0000 (15:48 +0800)]
kvm: reimplement kvm__setup_sregs
It's better to get sregs which was initialized by kernel and change what
we need precisely. Actually vmx_vcpu_reset does the cpu initialization
before us.
This solves the problem of failing to run on x86-32 host kernel.
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Asias He [Fri, 28 May 2010 16:47:50 +0000 (20:47 +0400)]
kvm__init: the kernel should support irq and pit
We rely on kenrnel being fresh enough since we're
not going to support non built-in IRQ routing and
PIT emulation.
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Asias He [Tue, 11 May 2010 14:21:22 +0000 (22:21 +0800)]
kvm: remove unneccessary iotcl parameter
The last parameter of the following is unneccessary:
ret = ioctl(self->vm_fd, KVM_SET_USER_MEMORY_REGION, &mem, 1);
as seen in linux-2.6.32.12/virt/kvm/kvm_main.c:
case KVM_SET_USER_MEMORY_REGION: {
struct kvm_userspace_memory_region kvm_userspace_mem;
r = -EFAULT;
if (copy_from_user(&kvm_userspace_mem, argp,
sizeof kvm_userspace_mem))
goto out;
r = kvm_vm_ioctl_set_memory_region(kvm, &kvm_userspace_mem, 1);
if (r)
goto out;
break;
}
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Mon, 10 May 2010 10:18:17 +0000 (14:18 +0400)]
kvm: Use strlcat helper for copying cmdline params
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Wed, 28 Apr 2010 18:59:36 +0000 (22:59 +0400)]
kvm: Use PRIx qualificator for printf
In sake of portability better to use PRIx qualificator
for printf flags.
Reported-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Asias He [Wed, 28 Apr 2010 18:53:49 +0000 (22:53 +0400)]
bios: No new line at EOF nit fix
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Pekka Enberg [Mon, 26 Apr 2010 15:16:25 +0000 (18:16 +0300)]
kvm: Fix .gitignore patterns
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Mon, 26 Apr 2010 11:08:00 +0000 (15:08 +0400)]
kvm: Print error code on unknown error
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Mon, 26 Apr 2010 06:55:50 +0000 (10:55 +0400)]
Change __x86_x__ to CONFIG_X86_X
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Pekka Enberg [Sat, 24 Apr 2010 06:57:38 +0000 (09:57 +0300)]
kvm: Flush stdout for early printk
Make sure we flush stdout for early printk so that we can see what's really
going on when a kernel gets stuck.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sat, 24 Apr 2010 06:54:52 +0000 (09:54 +0300)]
kvm: Dump state on SIGQUIT
This patch adds state dumping to SIGQUIT signal handler to make debugging
infinite loops easier. If a kernel gets stuck under KVM, you can press Ctrl-4
and then use 'addr2line' to figure out the exact location where it's stuck from
the reported 'rip':
^\[ 0.000000] Calibrating delay loop... Registers:
rip:
ffffffff816a0c83 rsp:
ffffffff81c01eb8 flags:
0000000000000246
rax:
00000000ffff8ad0 rbx:
ffffffff81d541a0 rcx:
00000000ffffffff
rdx:
00000000ffff8ad0 rsi:
0000000000000046 rdi:
0000000000002000
rbp:
ffffffff81c01f28 r8:
00000000000003fd r9:
0000000000000000
r10:
0000000000000000 r11:
000000000000000d r12:
ffffffff81d56d20
r13:
0000000000000000 r14:
ffffffffffffffff r15:
0000000000013690
cr0:
000000008005003b cr2:
0000000000000000 cr3:
0000000001c08000
cr4:
00000000000006b0 cr8:
0000000000000000
Segment registers:
register selector base limit type p dpl db s l g avl
cs 0010
0000000000000000 ffffffff 0b 1 0 0 1 1 1 0
ss 0000
0000000000000000 ffffffff 00 0 0 0 0 0 0 0
ds 0000
0000000000000000 ffffffff 00 0 0 0 0 0 0 0
es 0000
0000000000000000 ffffffff 00 0 0 0 0 0 0 0
fs 0000
0000000000000000 ffffffff 00 0 0 0 0 0 0 0
gs 0000
ffff880002000000 ffffffff 00 0 0 0 0 0 0 0
tr 0040
ffff880002011bc0 00002087 0b 1 0 0 0 0 0 0
ldt 0000
0000000000000000 ffffffff 00 0 0 0 0 0 0 0
gdt
ffff880002004000 0000007f
idt
ffffffff81de9000 00000fff
[ efer:
0000000000000d01 apic base:
0000000000000000 nmi: enabled ]
Interrupt bitmap:
0000000000000000 0000000000000000 0000000000000000 0000000000000000
Code:
Stack:
penberg@tiger:~/vm$ addr2line -e vmlinux
0xffffffff816a0c83
/home/penberg/linux/init/calibrate.c:149
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Thu, 22 Apr 2010 14:46:31 +0000 (18:46 +0400)]
kvm: Don't touch 64 bit specific MSR registers on 32 bit
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sat, 17 Apr 2010 11:32:48 +0000 (15:32 +0400)]
kvm: Set more fields in boot protocol
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Fri, 16 Apr 2010 17:33:04 +0000 (21:33 +0400)]
kvm: Command line update must honor ABI
This is a part of boot protocol, so that we
must honor it.
Reported-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Wed, 14 Apr 2010 16:22:00 +0000 (20:22 +0400)]
Makefile: Add cpu specific definition
We need to figure out what kind of cpu we're
going to run on for bios code.
Suggested-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cyrill Gorcunov [Tue, 13 Apr 2010 19:48:17 +0000 (23:48 +0400)]
kvm: Kill the bin2c helper
Instead of calling bin2c helper we just include 16-bit pure code with .incbin
and export the symbols we need.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 11 Apr 2010 18:21:09 +0000 (22:21 +0400)]
kvm: Add more default kernel command line parameters
We dont support ACPI, APIC, SMP yet, mark it so.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Pekka Enberg [Sun, 11 Apr 2010 18:07:45 +0000 (21:07 +0300)]
Merge branch 'master' of git://github.com/cyrillos/vm
Pekka Enberg [Sun, 11 Apr 2010 18:05:36 +0000 (21:05 +0300)]
kvm: Clean up early serial code
Use similar constants and variable names as in arch/x86/kernel/early_printk.c
in the Linux kernel.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 11 Apr 2010 17:56:56 +0000 (21:56 +0400)]
ioport: Make all PIT channels being dummy
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Pekka Enberg [Sun, 11 Apr 2010 17:55:56 +0000 (20:55 +0300)]
kvm: Force 'notsc' and 'earlyprintk' kernel parameters
We don't support TSC calibration properly and we want early printk so force
them as kernel parameters.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 17:42:10 +0000 (20:42 +0300)]
kvm: Add support for early serial printk
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cyrill Gorcunov [Sun, 11 Apr 2010 16:09:28 +0000 (20:09 +0400)]
kvm: Make command line to be placed at predefined address
We support only 0x202 boot protocol at moment so that kernel command line is
copied into predefined address.
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 [Sun, 11 Apr 2010 14:08:15 +0000 (17:08 +0300)]
kvm: Fix minor formatting glitch in cpuid.c
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 13:35:35 +0000 (16:35 +0300)]
kvm: Fix off-by-one bugs in kvm__setup_cpuid()
The cpuid_highest_func() and cpuid_highest_ext_func() return the highest
possible function number, not the first non-existing function.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 12:29:43 +0000 (15:29 +0300)]
kvm: Ignore keyboard controller ioports
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 12:25:46 +0000 (15:25 +0300)]
kvm: Ignore PIT ioports
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 12:24:17 +0000 (15:24 +0300)]
kvm: Ignore dummy delay ioport
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 12:22:38 +0000 (15:22 +0300)]
kvm: Ignore CRT control ioports
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 12:21:09 +0000 (15:21 +0300)]
kvm: Ignore CMOS RAM/RTC ioports
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 12:18:19 +0000 (15:18 +0300)]
kvm: Ignore PIC accesses
Fix up some dummy ioport ops so that we don't stop on PIC setup code in the
kernel.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 12:15:02 +0000 (15:15 +0300)]
kvm: Ignore MMIO accesses
Lets cheat some more and ignore MMIO accesses altogether.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 12:01:02 +0000 (15:01 +0300)]
kvm: Ignore PCI config space accesses
Lets try to cheat a bit and just flat out ignore PCI config space accesses.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Pekka Enberg [Sun, 11 Apr 2010 09:45:15 +0000 (12:45 +0300)]
kvm: Don't crash debug dump if address isn't in guest memory
We don't do MMU translation in the hypevisor for guest memory addresses which
causes us to try to dereference invalid pointers. Work around the problem by
checking that a pointer is in guest memory before dumping the contents.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
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>