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path: root/target-i386/cpuid.c
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2012-04-10target-i386: Rename cpuid.cAndreas Färber
Name it cpu.c to align with other QOM'ified targets. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-03-12add "tsc-deadline" flag name to feature_ecx tableEduardo Habkost
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24target-i386: Introduce x86_cpuid_set_model_id()Andreas Färber
Move the logic to transform the 48-char model ID into the 12-word model value into a helper. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24target-i386: Introduce x86_cpuid_version_set_stepping()Andreas Färber
Move the logic for setting the stepping field into a helper function. To make the function self-contained and to prepare for future unordered/multiple uses, mask out any previous stepping values first. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24target-i386: Introduce x86_cpuid_version_set_model()Andreas Färber
Move the logic for setting the model and extended model fields into a helper function. To make the function self-contained and to prepare for future unordered/multiple uses, mask out any previous model values first. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24target-i386: Introduce x86_cpuid_version_set_family()Andreas Färber
Move the logic for setting the family and extended family into a helper function. To make the helper self-contained and in preparation of future unordered/multiple uses, mask out any previous family values first. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-22cpu defs: use Intel flag names for Intel models (v2)Eduardo Habkost
Use 'i64' instead of 'lm' and 'xd' instead of 'nx' on Intel models. The flags have different names on Intel docs, so use those names for clarity. This is based on a previous patch from John Cooper where this was introduced with many other changes at the same time. Original John's patch submission is at Message-ID: <4DDAD5E7.2020002@redhat.com>, <http://marc.info/?l=qemu-devel&m=130618871926030>. Changes v1 -> v2: - Rebase patch against latest Qemu git tree Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-22cpu flags: aliases: pclmuldq|pclmulqdq and ffxsr|fxsr_optEduardo Habkost
pclmulqdq: /proc/cpuinfo on Linux and all documentation I have seen uses pclmulqdq as the flag name. As the only document using pclmuldq seems to be the Intel CPUID documentation (Application Note 485), it looks like a typo and not the correct name for the flag. ffxsr: AMD docs refer to fxsr_opt as ffxsr, so allow this named to be used too. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-19hyper-v: introduce Hyper-V support infrastructure.Vadim Rozenfeld
[Jan: fix build with CONFIG_USER_ONLY] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-12-22enable architectural PMU cpuid leaf for kvmGleb Natapov
Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-11-28x86/cpuid: Tighten parsing of tsc_freq=FREQMarkus Armbruster
cpu_x86_find_by_name() uses strtosz_suffix_unit(), but screws up the error checking. It detects some failures, but not all. Undetected failures result in a zero tsc_khz value (error value -1 divided by 1000), which means "no tsc_freq set". To reproduce, try "-cpu qemu64,tsc_freq=9999999T". strtosz_suffix_unit() fails, because the value overflows int64_t, Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-28Revert "i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID"Anthony Liguori
This reverts commit 66e3dd9282141b5ae75637c9676002cf3ceeb988. From Avi, "Anthony, I think we should revert that commit and refactor cpuid for 1.1. The logic is spread over too many places which makes it hard to reason about." Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-10x86/cpuid: Fix crash on -cpu ""Markus Armbruster
Spotted by Coverity. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-10x86/cpuid: Plug memory leak in cpudef_setfield()Markus Armbruster
To reproduce the leak, put two name options into the same [cpudef] section of target-x86_64.conf. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-10x86/cpuid: Convert remaining strdup() to g_strdup()Markus Armbruster
Fixes missing error checking. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-09i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUIDAvi Kivity
The fact that a host cpu supports a feature doesn't mean that QEMU and KVM will also support it, yet -cpuid host brings host features wholesale. We need to whitelist each feature separately to make sure we support it. This patch adds KVM whitelisting (by simply using KVM_GET_SUPPORTED_CPUID instead of the CPUID instruction). Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-05qemu-x86: Add tsc_freq option to -cpuJoerg Roedel
To let the user configure the desired tsc frequency for the guest if running in KVM. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: x86: Pass KVMState to kvm_arch_get_supported_cpuidJan Kiszka
kvm_arch_get_supported_cpuid checks for global cpuid restrictions, it does not require any CPUState reference. Changing its interface allows to call it before any VCPU is initialized. CC: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-14kvm: Enable CPU SMEP featureYang, Wei Y
This patchset enables a new CPU feature SMEP (Supervisor Mode Execution Protection) in QEMU-KVM. SMEP prevents kernel from executing code in application. Updated Intel SDM describes this CPU feature. The document will be published soon. SMEP is identified by CPUID leaf 7 EBX[7], which is 0 before. Get the right value by query KVM kernel module, so that guest can get SMEP through CPUID. Signed-off-by: Yang, Wei <wei.y.yang@intel.com> Singed-off-by: Shan, Haitao <haitao.shan@intel.com> Singed-off-by: Li, Xin <xin.li@intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-14kvm: Add CPUID support for VIA CPUbrillywu@viatech.com.cn
When KVM is running on VIA CPU with host cpu's model, the feautures of VIA CPU will be passed into kvm guest by calling the CPUID instruction for Centaur. Signed-off-by: BrillyWu<brillywu@viatech.com.cn> Signed-off-by: KaryJin<karyjin@viatech.com.cn> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-05-02kvm: add kvmclock to its second bitGlauber Costa
We have two bits that can represent kvmclock in cpuid. They signal the guest which msr set to use. When we tweak flags involving this value - specially when we use "-", we have to act on both. Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-05-02x86: Allow multiple cpu feature matches of lookup_featureJan Kiszka
kvmclock is represented by two feature bits. Therefore, lookup_feature needs to continue its search even after the first match. Enhance it accordingly and switch to a bool return type at this chance. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-03-16x86: Properly reset PAT MSRJan Kiszka
Conforming to the Intel spec, set the power-on value of PAT also on reset, but save it across INIT. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-23kvm: Improve reporting of fatal errorsJan Kiszka
Report KVM_EXIT_UNKNOWN, KVM_EXIT_FAIL_ENTRY, and KVM_EXIT_EXCEPTION with more details to stderr. The latter two are so far x86-only, so move them into the arch-specific handler. Integrate the Intel real mode warning on KVM_EXIT_FAIL_ENTRY that qemu-kvm carries, but actually restrict it to Intel CPUs. Moreover, always dump the CPU state in case we fail. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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>
2010-10-20Add 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>
2010-08-22QemuOpts: 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>
2010-08-20Use 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>
2010-07-02Don'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>
2010-06-28Enable 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>
2010-06-28fix 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>
2010-06-19apic: 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>
2010-06-01resent: 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>
2010-03-13x86/cpuid: fix indentationAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: Enable all features of real CPUAurelien Jarno
Enable all features of real CPU, unsupported features will be trimmed depending on TCG or KVM capabilities. Move the list of unsupported TCG features near the TCG capabilities masks. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: fix CPUID levelsAndre Przywara
Bump up the xlevel number for qemu32 to allow parsing of the processor name string for this model. Similiarly the 486 processor should have at least the feature bit leaf enabled. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: Always expose 32 and 64-bit CPUsAndre Przywara
Since 64-bit capability is just another CPUID bit we now properly mask, there is no reason anymore to hide the 64-bit capable CPU models from a 32-bit only QEMU. All 64-bit CPUs can be used perfectly in 32-bit legacy mode anyway, so these models also make sense for 32-bit. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: add TCG feature bit trimmingAndre Przywara
In KVM we trim the user provided CPUID bits to match the host CPU's one. Introduce a similar feature to QEMU/TCG. Create a mask of TCG's capabilities and apply it to the user bits. This allows to let the CPU models reflect their native archetypes. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: add "host" to the list of supported CPU modelsAndre Przywara
Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: add missing CPUID feature flag namesAndre Przywara
Some CPUID feature flags had no string value, so they could not be switched on or off from the command line. Add names for the missing ones mentioned in the current public CPUID specification from both Intel and AMD. Those only mentioned in the Linux kernel source I put as comments. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: moved host_cpuid function and remove prototypeAndre Przywara
the host_cpuid function was located at the end of the file and had a prototype before it's first use. Move it up and remove the prototype. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: fix missing feature set bitsAndre Przywara
This one was accidently removed with commit bb0300dc57c10b3721451b0ff566a03f9276cc77 Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: replace magic number with named constantAndre Przywara
CPUID leaf Fn8000_0001.EDX contains a copy of many Fn0000_0001.EDX bits. Define a name for this mask to improve readability and avoid typos. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-13x86/cpuid: move CPUID functions into separate fileAndre Przywara
about half of target-i386/helper.c consist of CPUID related functions. Only one of them is a real TCG helper function. So move the whole CPUID stuff out of this into a separate file to get better maintainable parts. This is only code reordering and should not affect QEMU's functionality. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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