Commit Graph

33 Commits

Author SHA1 Message Date
Zhang Xiantao
0de10343b3 KVM: Portability: Split kvm_set_memory_region() to have an arch callout
Moving !user_alloc case to kvm_arch to avoid unnecessary
code logic in non-x86 platform.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:09 +02:00
Avi Kivity
93a0039c8d KVM: x86 emulator: retire ->write_std()
Theoretically used to acccess memory known to be ordinary RAM, it was
never implemented.  It is questionable whether it is possible to implement
it correctly.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:09 +02:00
Izik Eidus
b4231d6180 KVM: MMU: Selectively set PageDirty when releasing guest memory
Improve dirty bit setting for pages that kvm release, until now every page
that we released we marked dirty, from now only pages that have potential
to get dirty we mark dirty.

Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:09 +02:00
Hollis Blanchard
d40ccc6246 KVM: Correct consistent typo: "destory" -> "destroy"
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:07 +02:00
Zhang Xiantao
56c6d28a9a KVM: Portability: MMU initialization and teardown split
Move out kvm_mmu init and exit functionality from kvm_main.c

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:05 +02:00
Zhang Xiantao
5bb064dcde KVM: Portability: Move kvm_vcpu_ioctl_get_dirty_log to arch-specific file
Meanwhile keep the interface in common, and leave as more logic in common
as possible.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:05 +02:00
Amit Shah
9327fd1195 KVM: Make unloading of FPU state when putting vcpu arch-independent
Instead of having each architecture do it individually, we
do this in the arch-independent code (just x86 as of now).

[avi: add svm to the mix, which was added to mainline during the
 2.6.24-rc process]

Signed-off-by: Amit Shah <amit.shah@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:05 +02:00
Avi Kivity
4cee576493 KVM: MMU: Add some mmu statistics
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:04 +02:00
Avi Kivity
ba1389b7a0 KVM: Extend stats support for VM stats
This is in addition to the current virtual cpu statistics.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:04 +02:00
Avi Kivity
f2b5756bb3 KVM: Add instruction emulation statistics 2008-01-30 17:53:04 +02:00
Avi Kivity
f096ed8588 KVM: Add fpu_reload counter
Measure the number of times we switch the fpu state.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:04 +02:00
Avi Kivity
e1beb1d37c KVM: Replace 'light_exits' stat with 'host_state_reload'
This is a little more accurate (since it counts actual reloads, not potential
reloads), and reverses the sense of the statistic to measure a bad event like
most of the other stats (e.g. we want to minimize all counters).

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:04 +02:00
Zhang Xiantao
d19a9cd275 KVM: Portability: Add two hooks to handle kvm_create and destroy vm
Add two arch hooks to handle kvm_create_vm and kvm destroy_vm. Now, just
put io_bus init and destory in common.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:04 +02:00
Zhang Xiantao
a16b043cc9 KVM: Remove __init attributes for kvm_init_debug and kvm_init_msr_list
Since their callers are not declared with __init.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:04 +02:00
Zhang Xiantao
8b0067913d KVM: Portability: Make kvm_vcpu_ioctl_translate arch dependent
Move kvm_vcpu_ioctl_translate to arch, since mmu would be put under arch.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:03 +02:00
Zhang Xiantao
018d00d2fe KVM: Portability: move KVM_CHECK_EXTENSION
Make KVM_CHECK_EXTENSION code into a function, all archs can define its
capability independently.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:03 +02:00
Zhang Xiantao
f8c16bbaa9 KVM: Portability: Move x86 specific code from kvm_init() to kvm_arch()
Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:03 +02:00
Zhang Xiantao
e9b11c1755 KVM: Portability: Add vcpu and hardware management arch hooks
Add the following hooks:

  void decache_vcpus_on_cpu(int cpu);
  int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
  void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
  void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
  void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
  void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
  struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
  void kvm_arch_vcpu_destory(struct kvm_vcpu *vcpu);
  int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
  void kvm_arch_hardware_enable(void *garbage);
  void kvm_arch_hardware_disable(void *garbage);
  int kvm_arch_hardware_setup(void);
  void kvm_arch_hardware_unsetup(void);
  void kvm_arch_check_processor_compat(void *rtn);

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:02 +02:00
Zhang Xiantao
97896d04a1 KVM: Portability: Move kvm_x86_ops to x86.c
Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:02 +02:00
Zhang Xiantao
d825ed0a97 KVM: Portability: Move some includes to x86.c
Move some includes to x86.c from kvm_main.c, since the related functions
have been moved to x86.c

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:02 +02:00
Hollis Blanchard
b6c7a5dccf KVM: Portability: Move x86 vcpu ioctl handlers to x86.c
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:00 +02:00
Hollis Blanchard
d075206073 KVM: Portability: Move x86 FPU handling to x86.c
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:00 +02:00
Hollis Blanchard
8776e5194f KVM: Portability: Move x86 instruction emulation code to x86.c
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:00 +02:00
Hollis Blanchard
417bc3041f KVM: Portability: Make exported debugfs data architecture-specific
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:59 +02:00
Carsten Otte
de7d789acd KVM: Portability: Move pio emulation functions to x86.c
This patch moves implementation of the following functions from
kvm_main.c to x86.c:
free_pio_guest_pages, vcpu_find_pio_dev, pio_copy_data, complete_pio,
kernel_pio, pio_string_write, kvm_emulate_pio, kvm_emulate_pio_string

The function inject_gp, which was duplicated by yesterday's patch
series, is removed from kvm_main.c now because it is not needed anymore.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:59 +02:00
Carsten Otte
bbd9b64e37 KVM: Portability: Move x86 emulation and mmio device hook to x86.c
This patch moves the following functions to from kvm_main.c to x86.c:
emulator_read/write_std, vcpu_find_pervcpu_dev, vcpu_find_mmio_dev,
emulator_read/write_emulated, emulator_write_phys,
emulator_write_emulated_onepage, emulator_cmpxchg_emulated,
get_setment_base, emulate_invlpg, emulate_clts, emulator_get/set_dr,
kvm_report_emulation_failure, emulate_instruction

The following data type is moved to x86.c:
struct x86_emulate_ops emulate_ops

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:58 +02:00
Carsten Otte
15c4a6406f KVM: Portability: Move kvm_get/set_msr[_common] to x86.c
This patch moves the implementation of the functions of kvm_get/set_msr,
kvm_get/set_msr_common, and set_efer from kvm_main.c to x86.c. The
definition of EFER_RESERVED_BITS is moved too.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:58 +02:00
Carsten Otte
a03490ed29 KVM: Portability: Move control register helper functions to x86.c
This patch moves the definitions of CR0_RESERVED_BITS,
CR4_RESERVED_BITS, and CR8_RESERVED_BITS along with the following
functions from kvm_main.c to x86.c:
set_cr0(), set_cr3(), set_cr4(), set_cr8(), get_cr8(), lmsw(),
load_pdptrs()
The static function wrapper inject_gp is duplicated in kvm_main.c and
x86.c for now, the version in kvm_main.c should disappear once the last
user of it is gone too.
The function load_pdptrs is no longer static, and now defined in x86.h
for the time being, until the last user of it is gone from kvm_main.c.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:58 +02:00
Carsten Otte
6866b83ed7 KVM: Portability: move get/set_apic_base to x86.c
This patch moves the implementation of get_apic_base and set_apic_base
from kvm_main.c to x86.c

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:58 +02:00
Carsten Otte
5fb76f9be1 KVM: Portability: Move memory segmentation to x86.c
This patch moves the definition of segment_descriptor_64 for AMD64 and
EM64T from kvm_main.c to segment_descriptor.h. It also adds a proper
#ifndef...#define...#endif around that header file.
The implementation of segment_base is moved from kvm_main.c to x86.c.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:57 +02:00
Carsten Otte
1fe779f8ec KVM: Portability: Split kvm_vm_ioctl v3
This patch splits kvm_vm_ioctl into archtecture independent parts, and
x86 specific parts which go to kvm_arch_vcpu_ioctl in x86.c.
The patch is unchanged since last submission.

Common ioctls for all architectures are:
KVM_CREATE_VCPU, KVM_GET_DIRTY_LOG, KVM_SET_USER_MEMORY_REGION

x86 specific ioctls are:
KVM_SET_MEMORY_REGION,
KVM_GET/SET_NR_MMU_PAGES, KVM_SET_MEMORY_ALIAS, KVM_CREATE_IRQCHIP,
KVM_CREATE_IRQ_LINE, KVM_GET/SET_IRQCHIP
KVM_SET_TSS_ADDR

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:57 +02:00
Carsten Otte
313a3dc75d KVM: Portability: split kvm_vcpu_ioctl
This patch splits kvm_vcpu_ioctl into archtecture independent parts, and
x86 specific parts which go to kvm_arch_vcpu_ioctl in x86.c.

Common ioctls for all architectures are:
KVM_RUN, KVM_GET/SET_(S-)REGS, KVM_TRANSLATE, KVM_INTERRUPT,
KVM_DEBUG_GUEST, KVM_SET_SIGNAL_MASK, KVM_GET/SET_FPU
Note that some PPC chips don't have an FPU, so we might need an #ifdef
around KVM_GET/SET_FPU one day.

x86 specific ioctls are:
KVM_GET/SET_LAPIC, KVM_SET_CPUID, KVM_GET/SET_MSRS

An interresting aspect is vcpu_load/vcpu_put. We now have a common
vcpu_load/put which does the preemption stuff, and an architecture
specific kvm_arch_vcpu_load/put. In the x86 case, this one calls the
vmx/svm function defined in kvm_x86_ops.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:52 +02:00
Carsten Otte
043405e100 KVM: Move x86 msr handling to new files x86.[ch]
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:52:51 +02:00