| #
503483d2 |
| 07-Aug-2011 |
Cyrill Gorcunov <gorcunov@gmail.com> |
kvm tools: Support xAPIC
Since we rely on in-kernel kvm-apic implementation
it's fine to set apic version as xAPIC which allows
kernel to run in bigsmp mode.
Without it the kernel will not support
kvm tools: Support xAPIC
Since we rely on in-kernel kvm-apic implementation
it's fine to set apic version as xAPIC which allows
kernel to run in bigsmp mode.
Without it the kernel will not support more than 8 cpus,
complaining as
| [ 0.362000] Initializing CPU#8
| [ 0.363000] ------------[ cut here ]------------
| [ 0.363000] WARNING: at arch/x86/kernel/apic/apic.c:1238 setup_local_APIC+0xeb/0x2e1()
| [ 0.364000] Modules linked in:
| [ 0.364000] Pid: 0, comm: kworker/0:1 Not tainted 3.0.0+ #70
| [ 0.364000] Call Trace:
| [ 0.364000] [<c1060c7e>] warn_slowpath_common+0x63/0x78
| [ 0.365000] [<c16612a8>] ? setup_local_APIC+0xeb/0x2e1
| [ 0.365000] [<c1060ca2>] warn_slowpath_null+0xf/0x13
| [ 0.365000] [<c16612a8>] setup_local_APIC+0xeb/0x2e1
| [ 0.366000] [<c165c684>] ? fpu_init+0x6b/0x88
| [ 0.366000] [<c1047fd7>] ? default_get_apic_id+0x17/0x32
| [ 0.366000] [<c16607d3>] start_secondary+0xab/0x18e
| [ 0.367000] ---[ end trace 4eaa2a86a8e2da22 ]---
Note the kernel needs "apic=bigsmp" parameter passed to
enable physical destination mode.
Reported-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
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|
| #
0c7c14a7 |
| 25-Apr-2011 |
Cyrill Gorcunov <gorcunov@gmail.com> |
kvm tools: Add MP tables support
This is a raw prototipe for MP table support, most resources
such as IRQ pins and sources are hardcoded among other limitations.
Note we still limit the number of c
kvm tools: Add MP tables support
This is a raw prototipe for MP table support, most resources
such as IRQ pins and sources are hardcoded among other limitations.
Note we still limit the number of cpus to run up to a single cpu
until the full SMP support appear. In particular don't forget to
remove "nolapic" from command line then.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
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|