- 10 9月, 2009 40 次提交
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由 Joerg Roedel 提交于
This function is not longer required. So remove it. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
This patch removes the usage of nested_svm_do from the vmrun emulation path. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
This patch removes the usage of nested_svm_do from the vmload and vmsave emulation code paths. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
This patch changes nested svm to call nested_svm_exit_handled_msr directly and not through nested_svm_do. [alex: fix oops due to nested kmap_atomics] Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
This patch is the starting point of removing nested_svm_do from the nested svm code. The nested_svm_do function basically maps two guest physical pages to host virtual addresses and calls a passed function on it. This function pointer code flow is hard to read and not the best technical solution here. As a side effect this patch indroduces the nested_svm_[un]map helper functions. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
Makes the code of this function more readable by removing on indentation level for the core logic. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
If this function returns true a nested vmexit is required. Move that vmexit into the nested_svm_exit_handled function. This also simplifies the handling of nested #pf intercepts in this function. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
When caching guest intercepts there is no need anymore for the nested_svm_exit_handled_real function. So move its code into nested_svm_exit_handled. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
When the nested intercepts are cached we don't need to call get_user_pages and/or map the nested vmcb on every nested #vmexit to check who will handle the intercept. Further this patch aligns the emulated svm behavior better to real hardware. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
This makes it more clear for which purpose these members in the vcpu_svm exist. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
The interrupt completion code must run after nested exits are handled because not injected interrupts or exceptions may be handled by the l1 guest first. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
The vmcb control area contains more then 800 bytes of reserved fields which are unnecessarily copied. Fix this by introducing a copy function which only copies the relevant part and saves time. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
Only copy the necessary parts of the vmcb save area on vmrun and save precious time. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
It is more efficient to copy only the relevant parts of the vmcb back to the nested vmcb when we emulate an vmexit. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
This patch makes the code easier to read when it comes to setting, clearing and checking the status of the virtualized global interrupt flag for the VCPU. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Needed by KVM. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
They are not doing anything else now. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
Currently they are called when irq vector is been delivered. Calling ack notifiers at this point is wrong. Device assignment ack notifier enables host interrupts, but guest not yet had a chance to clear interrupt condition in a device. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
d5ecfdd25 moved it out because back than it was impossible to call it inside spinlock. This restriction no longer exists. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Roel Kluin 提交于
Check whether index is within bounds before grabbing the element. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Cc: Avi Kivity <avi@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Amit Shah 提交于
We ignore writes to the perfctr msrs. Ignore reads as well. Kaspersky antivirus crashes Windows guests if it can't read these MSRs. Signed-off-by: NAmit Shah <amit.shah@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of calling vmx_get_segment() (which reads a whole bunch of vmcs fields), read only the cs selector which contains the cpl. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jan Kiszka 提交于
So far unprivileged guest callers running in ring 3 can issue, e.g., MMU hypercalls. Normally, such callers cannot provide any hand-crafted MMU command structure as it has to be passed by its physical address, but they can still crash the guest kernel by passing random addresses. To close the hole, this patch considers hypercalls valid only if issued from guest ring 0. This may still be relaxed on a per-hypercall base in the future once required. Cc: stable@kernel.org Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Marcelo Tosatti 提交于
Remove the bogus n_free_mmu_pages assignment from alloc_mmu_pages. It breaks accounting of mmu pages, since n_free_mmu_pages is modified but the real number of pages remains the same. Cc: stable@kernel.org Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Izik Eidus 提交于
First check if the list is empty before attempting to look at list entries. Cc: stable@kernel.org Signed-off-by: NIzik Eidus <ieidus@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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This takes care of the following entries from Dan's list: arch/x86/kvm/i8254.c +714 kvm_inject_pit_timer_irqs(6) warning: variable derefenced in initializer 'vcpu' arch/x86/kvm/i8254.c +714 kvm_inject_pit_timer_irqs(6) warning: variable derefenced before check 'vcpu' Reported-by: NDan Carpenter <error27@gmail.com> Cc: corbet@lwn.net Cc: eteo@redhat.com Cc: Julia Lawall <julia@diku.dk> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: NSheng Yang <sheng@linux.intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
If userspace knows that the kernel part supports 1GB pages it can enable the corresponding cpuid bit so that guests actually use GB pages. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.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@redhat.com>
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由 Joerg Roedel 提交于
This patch adds support for shadow paging to the 1gb page table code in KVM. With this code the guest can use 1gb pages even if the host does not support them. [ Marcelo: fix shadow page collision on pmd level if a guest 1gb page is mapped with 4kb ptes on host level ] Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
The page walker may be used with nested paging too when accessing mmio areas. Make it support the additional page-level too. [ Marcelo: fix reserved bit check for 1gb pte ] Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.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@redhat.com>
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由 Joerg Roedel 提交于
With the new name and the corresponding backend changes this function can now support multiple hugepage sizes. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Joerg Roedel 提交于
This patch removes the largepage parameter from the rmap_add function. Together with rmap_remove this function now uses the role.level field to find determine if the page is a huge page. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Xiao Guangrong 提交于
Remove debugfs file if kvm_arch_init() return error Signed-off-by: NXiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Marcelo Tosatti 提交于
Otherwise its possible to starve the host by programming lapic timer with a very high frequency. Cc: stable@kernel.org Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Mikhail Ershov 提交于
Commit f0a3602c20 ("KVM: Move interrupt injection logic to x86.c") does not update the cr8 intercept if the lapic is disabled, so when userspace updates cr8, the cr8 threshold control is not updated and we are left with illegal control fields. Fix by explicitly resetting the cr8 threshold. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jan Kiszka 提交于
Choose some allowed error values for the cases VMX returned ENOTSUPP so far as these values could be returned by the KVM_RUN IOCTL. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Jan Kiszka 提交于
spin_lock disables preemption, so we can simply read the current cpu. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Gleb Natapov 提交于
Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Sheng Yang 提交于
Now KVM allow guest to modify guest's physical address of EPT's identity mapping page. (change from v1, discard unnecessary check, change ioctl to accept parameter address rather than value) Signed-off-by: NSheng Yang <sheng@linux.intel.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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