- 13 10月, 2007 29 次提交
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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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由 Shaohua Li 提交于
vmx_cpu_run doesn't handle error correctly and kvm_mmu_reload might sleep with mutex changes, so I move it above. Signed-off-by: NShaohua Li <shaohua.li@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Don't fall through and turn on PAE in this case. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Right now, the bug is harmless as we never emulate one-byte 0xb6 or 0xb7. But things may change. Noted by the mysterious Gabriel C. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
The writeback fixes (02c03a32) broke cmov emulation. Fix. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Intel manual (and KVM definition) say the TPR is 4 bits wide. Also fix CR8_RESEVED_BITS typo. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Acked-by: NH. Peter Anvin <hpa@zytor.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jeff Dike 提交于
Signed-off-by: NJeff Dike <jdike@linux.intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Creating one's own BITMAP macro seems suboptimal: if we use manual arithmetic in the one place exposed to userspace, we can use standard macros elsewhere. 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
On this machine (Intel), writing to the CR4 bits 0x00000800 and 0x00001000 cause a GPF. The Intel manual is a little unclear, but AFIACT they're reserved, too. Also fix spelling of CR4_RESEVED_BITS. 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
The kernel now has asm/cpu-features.h: use those macros instead of inventing our own. Also spell out definition of CR3_RESEVED_BITS, fix spelling and tighten it for the non-PAE case. 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
The kernel now has asm/cpu-features.h: use those macros instead of inventing our own. Also spell out definition of CR0_RESEVED_BITS (no code change) and fix typo. 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
Don't pre-declare hardware_disable: shuffle the reboot hook down. 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
Speling error in comment. 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
I have shied away from touching x86_emulate.c (it could definitely use some love, but it is forked from the Xen code, and it would be more productive to cross-merge fixes). 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
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Eddie Dong 提交于
Add string pio write support to support some version of Windows. Signed-off-by: NYaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Qing He 提交于
This patch adds a `vcpu_id' field in `struct vcpu', so we can differentiate BSP and APs without pointer comparison or arithmetic. Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Nguyen Anh Quynh 提交于
*nopage() in kvm_main.c should only store the type of mmap() fault if the pointers are not NULL. This patch fixes the problem. Signed-off-by: NNguyen Anh Quynh <aquynh@gmail.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 23 9月, 2007 1 次提交
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由 Avi Kivity 提交于
What guest drivers? Cc: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: NAvi Kivity <avi@qumranet.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 15 9月, 2007 1 次提交
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由 Avi Kivity 提交于
A guest context switch to an uncached cr3 can require allocation of shadow pages, but we only recycle shadow pages in kvm_mmu_page_fault(). Move shadow page recycling to mmu_topup_memory_caches(), which is called from both the page fault handler and from guest cr3 reload. Signed-off-by: NAvi Kivity <avi@qumranet.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 20 8月, 2007 1 次提交
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由 Avi Kivity 提交于
When taking a cpu down, we need to hardware_disable() it. Unfortunately, the CPU_DYING notifier is called with interrupts disabled, which means we can't use smp_call_function_single(). Fortunately, the CPU_DYING notifier is always called on the dying cpu, so we don't need to use the function at all and can simply call hardware_disable() directly. Tested-by: NPaolo Ornati <ornati@fastwebnet.it> Signed-off-by: NAvi Kivity <avi@qumranet.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 19 8月, 2007 1 次提交
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@gmx.de> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (edited MACINTOSH_DRIVERS per Geert Uytterhoeven's remark) Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 07 8月, 2007 1 次提交
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由 Avi Kivity 提交于
More fallout from the writeback fixes: debug register transfer instructions do their own writeback and thus need to disable the general writeback mechanism. This fixes oopses and some guest failures on AMD machines (the Intel variant decodes the instruction in hardware and thus does not need emulation). Cc: Alistair John Strachan <alistair@devzero.co.uk> Signed-off-by: NAvi Kivity <avi@qumranet.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 7月, 2007 5 次提交
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由 Aurelien Jarno 提交于
0x0f 0x01 instructions (ie lgdt, lidt, smsw, lmsw and invlpg) does not use writeback. This patch set no_wb=1 when emulating those instructions. This fixes a regression booting the FreeBSD kernel on AMD. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Testing the wrong bit caused kvm not to disable nx on the guest when it is disabled on the host (an mmu optimization relies on the nx bits being the same in the guest and host). This allows Windows to boot when nx is disabled on te host (e.g. when host pae is disabled). Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
This reverts commit a3c870bd. While it does save useless updates, it (probably) defeats the fork detector, causing a massive performance loss. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
We add the kvm to the vm_list before initializing the vcpu mutexes, which can be mutex_trylock()'ed by decache_vcpus_on_cpu(). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Writes that are contiguous in virtual memory may not be contiguous in physical memory; so split writes that straddle a page boundary. Thanks to Aurelien for reporting the bug, patient testing, and a fix to this very patch. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 23 7月, 2007 1 次提交
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由 Avi Kivity 提交于
Found by Sebastian Siewior and randconfig. Signed-off-by: NAvi Kivity <avi@qumranet.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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