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2010-11-16Add support for async page fault to qemuGleb Natapov
Add save/restore of MSR for migration and cpuid bit. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-30target-xxx: Use fprintf_function (format checking)Stefan Weil
fprintf_function uses format checking with GCC_FMT_ATTR. Format errors were fixed in * target-i386/helper.c * target-mips/translate.c * target-ppc/translate.c Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-21kvm: save/restore x86-64 MSRs on x86-64 kernelsMarcelo Tosatti
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-21kvm: writeback SMP TSCs on migration onlyMarcelo Tosatti
commit 6389c45441269baa2873e6feafebd17105ddeaf6 Author: Jan Kiszka <jan.kiszka@siemens.com> Date: Mon Mar 1 18:17:26 2010 +0100 qemu-kvm: Cleanup/fix TSC and PV clock writeback Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-21kvm: factor out kvm_has_msr_starMarcelo Tosatti
And add kvm_has_msr_hsave_pa(), to avoid warnings on older kernels without support. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-21kvm: add save/restore of MSR_VM_HSAVE_PAMarcelo Tosatti
commit 2bba4446746add456ceeb0e8359a43032a2ea333 Author: Alexander Graf <agraf@suse.de> Date: Thu Dec 18 15:38:32 2008 +0100 Enable nested SVM support in userspace Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-21Fix build on !KVM_CAP_MCEHidetoshi Seto
This patch removes following warnings: target-i386/kvm.c: In function 'kvm_put_msrs': target-i386/kvm.c:782: error: unused variable 'i' target-i386/kvm.c: In function 'kvm_get_msrs': target-i386/kvm.c:1083: error: label at end of compound statement Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-21x86, mce: broadcast mce depending on the cpu versionHidetoshi Seto
There is no reason why SRAO event received by the main thread is the only one that being broadcasted. According to the x86 ASDM vol.3A 15.10.4.1, MCE signal is broadcast on processor version 06H_EH or later. This change is required to handle SRAR in smp guests. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-21x86, mce: ignore SRAO only when MCG_SER_P is availableHidetoshi Seto
And restruct this block to call kvm_mce_in_exception() only when it is required. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-20Fix memory leak in register save load due to xsave supportMarcelo Tosatti
From: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-20Add savevm/loadvm support for MCEMarcelo Tosatti
Port qemu-kvm's commit 1bab5d11545d8de5facf46c28630085a2f9651ae Author: Huang Ying <ying.huang@intel.com> Date: Wed Mar 3 16:52:46 2010 +0800 Add savevm/loadvm support for MCE MCE registers are saved/load into/from CPUState in kvm_arch_save/load_regs. To simulate the MCG_STATUS clearing upon reset, MSR_MCG_STATUS is set to 0 for KVM_PUT_RESET_STATE. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20MCE: Relay UCR MCE to guestMarcelo Tosatti
Port qemu-kvm's commit 4b62fff1101a7ad77553147717a8bd3bf79df7ef Author: Huang Ying <ying.huang@intel.com> Date: Mon Sep 21 10:43:25 2009 +0800 MCE: Relay UCR MCE to guest UCR (uncorrected recovery) MCE is supported in recent Intel CPUs, where some hardware error such as some memory error can be reported without PCC (processor context corrupted). To recover from such MCE, the corresponding memory will be unmapped, and all processes accessing the memory will be killed via SIGBUS. For KVM, if QEMU/KVM is killed, all guest processes will be killed too. So we relay SIGBUS from host OS to guest system via a UCR MCE injection. Then guest OS can isolate corresponding memory and kill necessary guest processes only. SIGBUS sent to main thread (not VCPU threads) will be broadcast to all VCPU threads as UCR MCE. aliguori: fix build Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-10-20kvm: x86: add mce supportMarcelo Tosatti
Port qemu-kvm's MCE support commit c68b2374c9048812f488e00ffb95db66c0bc07a7 Author: Huang Ying <ying.huang@intel.com> Date: Mon Jul 20 10:00:53 2009 +0800 Add MCE simulation support to qemu/kvm KVM ioctls are used to initialize MCE simulation and inject MCE. The real MCE simulation is implemented in Linux kernel. The Kernel part has been merged. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20Add svm cpuid featuresJoerg Roedel
This patch adds the svm cpuid feature flags to the qemu intialization path. It also adds the svm features available on phenom to its cpu-definition and extends the host cpu type to support all svm features KVM can provide. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20Set cpuid definition to 0 before initializing itJoerg Roedel
This patch cleans the (stack-allocated) cpuid definition to 0 before actually initializing it. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-13i386: avoid a write only variableBlue Swirl
Compiling with GCC 4.6.0 20100925 produced warnings: /src/qemu/target-i386/op_helper.c: In function 'switch_tss': /src/qemu/target-i386/op_helper.c:283:53: error: variable 'new_trap' set but not used [-Werror=unused-but-set-variable] Fix by adding a dummy cast so that the variable is not unused. Add also pointer to docs. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-08-22QemuOpts: make most qemu_*_opts staticGerd Hoffmann
Switch tree to lookup-by-name using qemu_find_opts(). Also hook up virtfs options so qemu_find_opts works for them too. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-08-22target-i386: svm: Fix MSRPM checkAdam Lackorzynski
Correct the calculation of the offset in the msrpm for the MSR range 0 - 0x1fff. Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-08-20Use ARRAY_SIZE macroBlue Swirl
Replace array size calculations with ARRAY_SIZE macro. Implemented with this Coccinelle semantic patch, adapted from Linux kernel: @@ type T; T[] E; @@ - (sizeof(E)/sizeof(*E)) + ARRAY_SIZE(E) @@ type T; T[] E; @@ - (sizeof(E)/sizeof(E[...])) + ARRAY_SIZE(E) @@ type T; T[] E; @@ - (sizeof(E)/sizeof(T)) + ARRAY_SIZE(E) Some files (*-dis.c, tests/*) had to be filtered out. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-25target-i386: use gen_update_cc_op()Jun Koi
This patch simplifies target-i386/translate.c a bit by replacing some code with gen_update_cc_op() Signed-off-by: Jun Koi <junkoi2004@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-07-24use symbol for DisasContext->is_jmpJun Koi
This patch replaces constant value assigned for (DisasContext *)->is_jmp with DISAS_TB_JUMP. Signed-off-by: Jun Koi <junkoi2004@gmail.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-07-03remove exec-all.h inclusion from cpu.hPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-03move cpu_pc_from_tb to target-*/exec.hPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-03remove unused stuff from */exec.hPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-02Don't declare XSAVE as supportedAndi Kleen
i386 cpuid.c currently claims XSAVE is supported in the CPUID filter, but that's not true: Only FXSAVE is supported. Remove that bit from the filter. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-07-02Add more boundary checking to sse3/4 parsingAndi Kleen
ssse3 uses tables with only two entries per op, but it is indexed with b1 which can contain variables upto 3. This happens when ssse3 or sse4 are used with REP* prefixes. Add boundary checking for this case. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-07-01target-i386: fix xchg rax,r8Richard Henderson
We were ignoring REX_B while special-casing NOP, i.e. xchg eax,eax. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-30x86: svm: Always clear event_inj on vmexitJan Kiszka
We currently only clear SVM_EVTINJ_VALID after successful interrupt delivery. This apparently does not match real hardware which clears the whole event_inj field on every vmexit, including unsuccessful interrupt delivery. Reported-by: Erik van der Kouwe <vdkouwe@cs.vu.nl> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-28kvm: Fix cpu_is_bsp() compilation warningSheng Yang
Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-06-28kvm: init mp_stateMarcelo Tosatti
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-06-28kvm: Enable XSAVE live migration supportSheng Yang
Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-06-28Enable XSAVE related CPUIDSheng Yang
We can support it in KVM now. The 0xd leaf is queried from KVM. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-06-28kvm: Extend kvm_arch_get_supported_cpuid() to support indexSheng Yang
Would use it later for XSAVE related CPUID. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-06-28fix CPUID vendor overrideAndre Przywara
the meaning of vendor_override is actually the opposite of how it is currently used :-( Fix it to allow KVM to export the non-native CPUID vendor if explicitly requested by the user. The intended behavior is: With TCG: - always inject the configured vendor (either hard-coded, in config files or via ",vendor=" commandline) With KVM: - by default inject the host's vendor - if the user specifies ",vendor=" on the commandline, use this instead of the host's vendor - all pre-configured vendors (hard-coded, config file) are ignored Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-06-27x86: Fix INIT processingJan Kiszka
This fixes a regression of 0e26b7b892: Reset halted also on INIT. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-19apic: qdev conversion cleanupBlue Swirl
Make APICState completely private to apic.c by using DeviceState in external APIs. Move apic_init() to pc.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-19apic: avoid using CPUState internalsBlue Swirl
Move the actual CPUState contents handling to cpu.h and cpuid.c. Handle CPU reset and set env->halted in pc.c. Add a function to get the local APIC state of the current CPU for the MMIO. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-19apic: avoid passing CPUState from CPU codeBlue Swirl
Pass only APICState when accessing APIC from CPU code. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-16tcg: Optionally sign-extend 32-bit arguments for 64-bit hosts.Richard Henderson
Some hosts (amd64, ia64) have an ABI that ignores the high bits of the 64-bit register when passing 32-bit arguments. Others require the value to be properly sign-extended for the type. I.e. "int32_t" must be sign-extended and "uint32_t" must be zero-extended to 64-bits. To effect this, extend the "sizemask" parameter to tcg_gen_callN to include the signedness of the type of each parameter. If the tcg target requires it, extend each 32-bit argument into a 64-bit temp and pass that to the function call. This ABI feature is required by sparc64, ppc64 and s390x. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-04target-i386: fix decoding of negative 4-byte displacementsPaolo Bonzini
Negative four byte displacements need to be sign-extended after c086b783eb7a578993d6d2ab62c4c2666800b63d. Do so. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-01resent: x86/cpuid: Add kvm32 CPU modelAndre Przywara
Create a kvm32 CPU model that describes a least common denominator for KVM capable guest CPUs. Useful for migration purposes. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-05-11kvm: fix 80000001.EDX supported bit filteringGleb Natapov
On AMD some bits from 1.EDX are reported in 80000001.EDX. The mask used to copy bits from 1.EDX to 80000001.EDX is incorrect resulting in unsupported features passed into a guest. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-05-11Do not stop VM if emulation failed in userspace.Gleb Natapov
Continue vcpu execution in case emulation failure happened while vcpu was in userspace. In this case #UD will be injected into the guest allowing guest OS to kill offending process and continue. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-05-11kvm: enable smp > 1Marcelo Tosatti
Process INIT/SIPI requests and enable -smp > 1. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-05-11kvm: validate context for kvm cpu get/put operationsJan Kiszka
Validate that KVM vcpu state is only read/written from cpu thread itself or that cpu is stopped. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-05-05target-i386: Remove duplicate CPU log.Richard Henderson
The proper logging for -d cpu is done in generic code. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-26kvm: allow qemu to set EPT identity mapping addressSheng Yang
If we use larger BIOS image than current 256KB, we would need move reserved TSS and EPT identity mapping pages. Currently TSS support this, but not EPT. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-04-26target-i386: print EFER in cpu_dump_stateMarcelo Tosatti
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-04-26KVM: x86: Add debug register saving and restoringJan Kiszka
Make use of the new KVM_GET/SET_DEBUGREGS to save/restore the x86 debug registers. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-04-25x86: remove dead assignments, spotted by clang analyzerBlue Swirl
Value stored is never read. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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