search for: cpuid_level

...r, 0x40000000, cpu->maxhv); + } if (show_cacheinfo) { diff --git a/x86info.h b/x86info.h index 7d2a455..c4f5d81 100644 --- a/x86info.h +++ b/x86info.h @@ -84,7 +84,7 @@ struct cpudata { unsigned int cachesize_trace; unsigned int phyaddr_bits; unsigned int viraddr_bits; - unsigned int cpuid_level, maxei, maxei2; + unsigned int cpuid_level, maxei, maxei2, maxhv; char name[CPU_NAME_LEN]; enum connector connector; unsigned int flags_ecx;

...r, 0x40000000, cpu->maxhv); + } if (show_cacheinfo) { diff --git a/x86info.h b/x86info.h index 7d2a455..c4f5d81 100644 --- a/x86info.h +++ b/x86info.h @@ -84,7 +84,7 @@ struct cpudata { unsigned int cachesize_trace; unsigned int phyaddr_bits; unsigned int viraddr_bits; - unsigned int cpuid_level, maxei, maxei2; + unsigned int cpuid_level, maxei, maxei2, maxhv; char name[CPU_NAME_LEN]; enum connector connector; unsigned int flags_ecx;

Only call CPUID function 4 if cpuid_level indicates its availability. Signed-off-by: Sebastian Herbszt <herbszt at gmx.de> diff --git a/com32/gpllib/cpuid.c b/com32/gpllib/cpuid.c index fa21204..f33e895 100644 --- a/com32/gpllib/cpuid.c +++ b/com32/gpllib/cpuid.c @@ -232,8 +232,10 @@ void generic_identify(struct cpuinfo_x86 *c) }...

...unsigned int eax; unsigned int hyper_vendor_id[3]; diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 807950860fb7..dc1207e2f193 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -522,7 +522,7 @@ static noinline uint32_t __kvm_cpuid_base(void) if (boot_cpu_data.cpuid_level < 0) return 0; /* So we don't blow up on old processors */ - if (cpu_has_hypervisor) + if (boot_cpu_has(X86_FEATURE_HYPERVISOR)) return hypervisor_cpuid_base("KVMKVMKVM\0\0\0", 0); return 0; diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/u...

...unsigned int eax; unsigned int hyper_vendor_id[3]; diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 807950860fb7..dc1207e2f193 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -522,7 +522,7 @@ static noinline uint32_t __kvm_cpuid_base(void) if (boot_cpu_data.cpuid_level < 0) return 0; /* So we don't blow up on old processors */ - if (cpu_has_hypervisor) + if (boot_cpu_has(X86_FEATURE_HYPERVISOR)) return hypervisor_cpuid_base("KVMKVMKVM\0\0\0", 0); return 0; diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/u...

...rch/x86/xstate.c @@ -253,7 +253,7 @@ void xstate_free_save_area(struct vcpu *v) /* Collect the information of processor''s extended state */ void xstate_init(bool_t bsp) { - u32 eax, ebx, ecx, edx, min_size; + u32 eax, ebx, ecx, edx; u64 feature_mask; if ( boot_cpu_data.cpuid_level < XSTATE_CPUID ) @@ -269,12 +269,6 @@ void xstate_init(bool_t bsp) BUG_ON((eax & XSTATE_YMM) && !(eax & XSTATE_SSE)); feature_mask = (((u64)edx << 32) | eax) & XCNTXT_MASK; - /* FP/SSE, XSAVE.HEADER, YMM */ - min_size = XSTATE_AREA_MIN_SIZE; - if (...

...rch/x86/xstate.c @@ -253,7 +253,7 @@ void xstate_free_save_area(struct vcpu *v) /* Collect the information of processor''s extended state */ void xstate_init(bool_t bsp) { - u32 eax, ebx, ecx, edx, min_size; + u32 eax, ebx, ecx, edx; u64 feature_mask; if ( boot_cpu_data.cpuid_level < XSTATE_CPUID ) @@ -269,12 +269,6 @@ void xstate_init(bool_t bsp) BUG_ON((eax & XSTATE_YMM) && !(eax & XSTATE_SSE)); feature_mask = (((u64)edx << 32) | eax) & XCNTXT_MASK; - /* FP/SSE, XSAVE.HEADER, YMM */ - min_size = XSTATE_AREA_MIN_SIZE; - if (...

...boot_cpu_has_bug(X86_BUG_F00F) ? "yes" : "no", + boot_cpu_has_bug(X86_BUG_COMA) ? "yes" : "no", + boot_cpu_has(X86_FEATURE_FPU) ? "yes" : "no", + boot_cpu_has(X86_FEATURE_FPU) ? "yes" : "no", c->cpuid_level); } #else diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index 6135ae8ce036..b2463fcb20a8 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -113,7 +113,7 @@ static void do_sanity_check(struct mm_struct *mm, * tables. */ WARN_ON(!had_kernel_mapping); - if (s...

...'number_of_cores' => cpu.numcores, - 'vendor' => cpu.vendor, - 'model' => cpu.model.to_s, - 'family' => cpu.family.to_s, - 'cpuid_level' => cpu.cpuid_lvl, - 'speed' => cpu.speed.to_s, - 'cache' => cpu.cache.to_s, - 'flags' => flags) - - host_db.cpus << detail - -...

Removes node identification functionality from host-browser.rb and adds a new script, host-register.rb, that takes over that functionality. The chief difference is that host-browser used a simple TCP server setup to get data from the node, while host-register uses the qpid bus to do so. Specifically, it communicates with the matahari qmf agent added to the node in two related patchsets to node

I've updated the patches at http://ozlabs.org/~rusty/paravirt/?mf=33ba6c4fce13;path=/ to carve out the basic shape of how I see all this fitting together. These patches implement an initial set of Xen paravirt ops, as well as adapting head.S to set up a Xen-specific entrypoint. The head.S code does absolutely minimal setup, and then calls xen_start_kernel(). This installs the Xen

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths

There''re basically two methods to enter a given C-state: legacy (hlt + I/O read), and native(using mwait). MWAIT is always preferred when both underlying CPU and OS support, which is a more efficient way to conduct C-state transition. Xen PM relies on Dom0 to parse ACPI Cx/Px information, which involves one step to notify BIOS about a set of capabilities supported by OSPM. One capability