- 13 10月, 2007 40 次提交
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由 Nitin A Kamble 提交于
Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nitin A Kamble 提交于
Implement emulation of instruction and al imm8 (opcode 0x24) and ax/eax imm16/imm32 (opcode 0x25) Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Yang, Sheng 提交于
This allows running 64-bit Windows. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
We need to check for signals inside the critical section, otherwise a signal can be sent which we will not notice. Also move the check before entry, so that if the signal happens before the first entry, we exit immediately instead of waiting for something to happen to the guest. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Split kvm_setup_pio() into two functions, one to setup in/out pio (kvm_emulate_pio()) and one to setup ins/outs pio (kvm_emulate_pio_string()). Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Both vmx and svm decode the I/O instructions, and both botch the job, requiring the instruction prefixes to be fetched in order to completely decode the instruction. So, if we see a string I/O instruction, use the x86 emulator to decode it, as it already has all the prefix decoding machinery. This patch defines ins/outs opcodes in x86_emulate.c and calls emulate_instruction() from io_interception() (svm.c) and from handle_io() (vmx.c). It removes all vmx/svm prefix instruction decoders (get_addr_size(), io_get_override(), io_address(), get_io_count()) Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
Line 1809 of kvm_main.c is useless, value is overwritten in line 1815: 1809 now = min(count, PAGE_SIZE / size); 1810 1811 if (!down) 1812 in_page = PAGE_SIZE - offset_in_page(address); 1813 else 1814 in_page = offset_in_page(address) + size; 1815 now = min(count, (unsigned long)in_page / size); 1816 if (!now) { Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Li, Xin B 提交于
Remove a duplicated ia32e mode VM Entry control definition and use the proper one. Signed-off-by: NXin Li <xin.b.li@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
We use kfree in svm.c and vmx.c, and this works, but it could break at any time. kfree() is supposed to match up with kmalloc(). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
All guest-invokable printks should be ratelimited to prevent malicious guests from flooding logs. This is a start. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Devices don't need open or release functions. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
We shouldn't define stat_set on the debug attributes, since that will cause silent failure on writing: without a set argument, userspace will get -EACCESS. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Gabriel C 提交于
move_msr_up() is used only on X86_64 and generates a warning on !X86_64 Signed-off-by: NGabriel Craciunescu <nix.or.die@googlemail.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
alloc_vmcs_cpu is already declared (static) above, no need to redeclare. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
set_msr_interception() is used by svm to set up which MSRs should be intercepted. It can only fail if someone has changed the code to try to intercept an MSR without updating the array of ranges. The return value is ignored anyway: it should just BUG() if it doesn't work. (A build-time failure would be better, but that's tricky). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
For some reason, mark_page_dirty open-codes __gfn_to_memslot(). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
sSigned-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Yang, Sheng 提交于
All the physical CPUs on the board should support the same VMX feature set. Add check_processor_compatibility to kvm_arch_ops for the consistency check. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
kvm_vm_ioctl_get_dirty_log scans bitmap to see it it's all zero, but doesn't use that information. Avi says: Looks like it was used to guard kvm_mmu_slot_remove_write_access(); optimizing the case where the guest just leaves the screen alone (which it usually does, especially in benchmarks). I'd rather reinstate that optimization. See 90cb0529 where the damage was done. It's pretty simple: if the bitmap is all zero, we don't need to do anything to clean it. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Now we use a kmem cache for allocating vcpus, we can get the 16-byte alignment required by fxsave & fxrstor instructions, and avoid manually aligning the buffer. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Avi wants the allocations of vcpus centralized again. The easiest way is to add a "size" arg to kvm_init_arch, and expose the thus-prepared cache to the modules. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
... in favor of the more general emulator_{read,write}_*. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
... instead of a x86_emulate_ctxt, so that other callers can use it easily. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Changes some svm.c internal function names: 1) io_adress -> io_address (de-germanify the spelling) 2) kvm_reput_irq -> reput_irq (it's not a generic kvm function) 3) kvm_do_inject_irq -> (it's not a generic kvm function) Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
container_of is wonderful, but not casting at all is better. This patch changes svm.c's internal functions to pass "struct vcpu_svm" instead of "struct kvm_vcpu" and using container_of. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
There are several places where hardcoded numbers are used in place of the easily-available constant, which is poor form. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
container_of is wonderful, but not casting at all is better. This patch changes vmx.c's internal functions to pass "struct vcpu_vmx" instead of "struct kvm_vcpu" and using container_of. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Now that kvm generally runs with preemption enabled, we need to protect the fpu intialization sequence. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Shaohua Li 提交于
This allows the kvm mmu to perform sleepy operations, such as memory allocation. Signed-off-by: NShaohua Li <shaohua.li@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Current kvm disables preemption while the new virtualization registers are in use. This of course is not very good for latency sensitive workloads (one use of virtualization is to offload user interface and other latency insensitive stuff to a container, so that it is easier to analyze the remaining workload). This patch re-enables preemption for kvm; preemption is now only disabled when switching the registers in and out, and during the switch to guest mode and back. Contains fixes from Shaohua Li <shaohua.li@intel.com>. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jeff Dike 提交于
Add the hypercall number to kvm_run and initialize it. This changes the ABI, but as this particular ABI was unusable before this no users are affected. Signed-off-by: NJeff Dike <jdike@linux.intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Yang, Sheng 提交于
Put cpu feature detecting part in hardware_setup, and stored the vmcs condition in global variable for further check. [glommer: fix for some i386-only machines not supporting CR8 load/store exiting] Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NGlauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
This patch converts the vcpus array in "struct kvm" to a pointer array, and changes the "vcpu_create" and "vcpu_setup" hooks into one "vcpu_create" call which does the allocation and initialization of the vcpu (calling back into the kvm_vcpu_init core helper). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Gregory Haskins 提交于
struct kvm_vcpu has vmx-specific members; remove them to a private structure. Signed-off-by: NGregory Haskins <ghaskins@novell.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
load_pdptrs can be handed an invalid cr3, and it should not oops. This can happen because we injected #gp in set_cr3() after we set vcpu->cr3 to the invalid value, or from kvm_vcpu_ioctl_set_sregs(), or memory configuration changes after the guest did set_cr3(). We should also copy the pdpte array once, before checking and assigning, otherwise an SMP guest can potentially alter the values between the check and the set. Finally one nitpick: ret = 1 should be done as late as possible: this allows GCC to check for unset "ret" should the function change in future. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Aurelien Jarno 提交于
The writeback fixes (02c03a32) let some dead code in the cmpxchg instruction emulation. Remove it. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Yang, Sheng 提交于
This patch mainly imports some constants and rename two exist constants of vmcs according to IA32 SDM. It also adds two constants to indicate Lock bit and Enable bit in MSR_IA32_FEATURE_CONTROL, and replace the hardcode _5_ with these two bits. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Shaohua Li 提交于
gfn_to_page might sleep with swap support. Move it out of the kmap calls. Signed-off-by: NShaohua Li <shaohua.li@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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