- 15 10月, 2008 40 次提交
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由 Xiantao Zhang 提交于
In Tukwila processor, VT-i has been enhanced in its implementation, it is often called VT-i2 techonology. With VTi-2 support, virtulization performance should be improved. In this patch, we added the related stuff to support kvm/ia64 for Tukwila processors. Signed-off-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Xiantao Zhang 提交于
An uniform entry kvm_vps_entry is added for vps_sync_write/read, vps_resume_handler/guest, and branches to differnt PAL service according to the offset. Singed-off-by: NAnthony Xu <anthony.xu@intel.com> Signed-off-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Weidong Han 提交于
Currently "#include <linux/intel-iommu.h>" is not needed in virt/kvm/kvm_main.c. Signed-off-by: NWeidong Han <weidong.han@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Glauber Costa 提交于
One of vcpu_setup responsibilities is to do mmu initialization. However, in case we fail in kvm_arch_vcpu_reset, before we get the chance to init mmu. OTOH, vcpu_destroy will attempt to destroy mmu, triggering a bug. Keeping track of whether or not mmu is initialized would unnecessarily complicate things. Rather, we just make return, making sure any needed uninitialization is done before we return, in case we fail. Signed-off-by: NGlauber Costa <glommer@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
The vcpu should process pending SIPI message before entering guest mode again. kvm_arch_vcpu_runnable() returns true if the vcpu is in SIPI state, so we can't call it here. Signed-off-by: NGleb Natapov <gleb@qumranet.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Harvey Harrison 提交于
Noticed by sparse: arch/x86/kvm/x86.c:3591:5: warning: symbol 'kvm_load_realmode_segment' was not declared. Should it be static? Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Marcelo Tosatti 提交于
Convert gfn_to_pfn to use get_user_pages_fast, which can do lockless pagetable lookups on x86. Kernel compilation on 4-way guest is 3.7% faster on VMX. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Marcelo Tosatti 提交于
kvm_vm_fault is invoked with mmap_sem held in read mode. Since gfn_to_page will be converted to get_user_pages_fast, which requires this lock NOT to be held, switch to opencoded get_user_pages. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Amit Shah 提交于
When an IRQ allocation fails, we free up the device structures and disable the device so that we can unregister the device in the userspace and not expose it to the guest at all. Signed-off-by: NAmit Shah <amit.shah@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Ben-Ami Yassour 提交于
Based on a patch by: Kay, Allen M <allen.m.kay@intel.com> This patch enables PCI device assignment based on VT-d support. When a device is assigned to the guest, the guest memory is pinned and the mapping is updated in the VT-d IOMMU. [Amit: Expose KVM_CAP_IOMMU so we can check if an IOMMU is present and also control enable/disable from userspace] Signed-off-by: NKay, Allen M <allen.m.kay@intel.com> Signed-off-by: NWeidong Han <weidong.han@intel.com> Signed-off-by: NBen-Ami Yassour <benami@il.ibm.com> Signed-off-by: NAmit Shah <amit.shah@qumranet.com> Acked-by: NMark Gross <mgross@linux.intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Kay, Allen M 提交于
This patch extends the VT-d driver to support KVM [Ben: fixed memory pinning] [avi: move dma_remapping.h as well] Signed-off-by: NKay, Allen M <allen.m.kay@intel.com> Signed-off-by: NWeidong Han <weidong.han@intel.com> Signed-off-by: NBen-Ami Yassour <benami@il.ibm.com> Signed-off-by: NAmit Shah <amit.shah@qumranet.com> Acked-by: NMark Gross <mgross@linux.intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Guillaume Thouvenin 提交于
For instruction 'and al,imm' we use DstAcc instead of doing the emulation directly into the instruction's opcode. Signed-off-by: NGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Guillaume Thouvenin 提交于
Add decode entries for these opcodes; execution is already implemented. Signed-off-by: NGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Guillaume Thouvenin 提交于
Add DstAcc operand type. That means that there are 4 bits now for DstMask. "In the good old days cpus would have only one register that was able to fully participate in arithmetic operations, typically called A for Accumulator. The x86 retains this tradition by having special, shorter encodings for the A register (like the cmp opcode), and even some instructions that only operate on A (like mul). SrcAcc and DstAcc would accommodate these instructions by decoding A into the corresponding 'struct operand'." -- Avi Kivity Signed-off-by: NGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Sheng Yang 提交于
For MSR_IA32_FEATURE_CONTROL is already there. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Sheng Yang 提交于
Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Joerg Roedel 提交于
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
jmp r/m64 doesn't require the rex.w prefix to indicate the operand size is 64 bits. Set the Stack attribute (even though it doesn't involve the stack, really) to indicate this. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jan Kiszka 提交于
Commit 1c0f4f5011829dac96347b5f84ba37c2252e1e08 left a useless access of VM_ENTRY_INTR_INFO_FIELD in vmx_intr_assist behind. Clean this up. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Hollis Blanchard 提交于
And it gets in the way of get_user_pages_fast(). Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Marcelo Tosatti 提交于
Since "KVM: x86: do not execute halted vcpus", HLT by vcpu0 before system reset by the IO thread will hang the guest. Mark vcpu as runnable in such case. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Mohammed Gamal 提交于
Add call near absolute instruction. Signed-off-by: NMohammed Gamal <m.gamal005@gmail.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Marcelo Tosatti 提交于
Offline or uninitialized vcpu's can be executed if requested to perform userspace work. Follow Avi's suggestion to handle halted vcpu's in the main loop, simplifying kvm_emulate_halt(). Introduce a new vcpu->requests bit to indicate events that promote state from halted to running. Also standardize vcpu wake sites. Signed-off-by: Marcelo Tosatti <mtosatti <at> redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Mohammed Gamal 提交于
The patch adds in/out instructions to the x86 emulator. The instruction was encountered while running the BIOS while using the invalid guest state emulation patch. Signed-off-by: NMohammed Gamal <m.gamal005@gmail.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
These can help show whether a guest is making progress or not. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Sheng Yang 提交于
EPT is 4 level by default in 32pae(48 bits), but the addr parameter of kvm_shadow_walk->entry() only accept unsigned long as virtual address, which is 32bit in 32pae. This result in SHADOW_PT_INDEX() overflow when try to fetch level 4 index. Fix it by extend kvm_shadow_walk->entry() to accept 64bit addr in parameter. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Xiantao Zhang 提交于
Two ioctl arch functions are added to set vcpu's smp state. Signed-off-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Mohammed Gamal 提交于
This adds the std and cld instructions to the emulator. Encountered while running the BIOS with invalid guest state emulation enabled. Signed-off-by: NMohammed Gamal <m.gamal005@gmail.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Borntraeger 提交于
The current help text for CONFIG_S390_GUEST is not very helpful. Lets add more text. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Borntraeger 提交于
Heiko Carstens pointed out, that its safer to activate working facilities instead of disabling problematic facilities. The new code uses the host facility bits and masks it with known good ones. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Joerg Roedel 提交于
Currently KVM implements MC0-MC4_MISC read support. When booting Linux this results in KVM warnings in the kernel log when the guest tries to read MC5_MISC. Fix this warnings with this patch. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
No memory is protected anyway. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
The accessed bit was accidentally turned on in a random flag word, rather than, the spte itself, which was lucky, since it used the non-EPT compatible PT_ACCESSED_MASK. Fix by turning the bit on in the spte and changing it to use the portable accessed mask. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Otherwise, the cpu may allow writes to the tracked pages, and we lose some display bits or fail to migrate correctly. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
It was generally safe due to slots_lock being held for write, but it wasn't very nice. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Now that two-dimensional paging is becoming common, account for tdp page faults. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Mohammed Gamal 提交于
The emulator only supported one instance of mov r, imm instruction (opcode 0xb8), this adds the rest of these instructions. Signed-off-by: NMohammed Gamal <m.gamal005@gmail.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
This is esoteric and only needed to break COW on MAP_SHARED mappings. Since KVM no longer does these sorts of mappings, breaking COW on them is no longer necessary. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
There is no reason to share internal memory slots with fork()ed instances. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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