1st version would be a simple dump to hypercall content, with
some proper calculations added. This at least gives people
immediate chance for a summary. Later we'll then extend to
xentrace.
Thanks,
Kevin
>From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
>Sent: 2008年9月22日 15:05
>
>My guess is that Jan would like to export this via sysfs, and
>hence doesn't
>legitimately have access to domctl/sysctl. I don't agree with
>the overall
>motivation though. I prefer this 'lspm' utility and also
>integration with
>xentrace.
>
> -- Keir
>
>On 22/9/08 03:26, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote:
>
>> Guanqun will make out a simple dom0 utility to the list
>> by utilizing sysctl this week. maybe call it 'lspm'.
>>
>> Thanks,
>> Kevin
>>
>>> From: Keir Fraser
>>> Sent: 2008年9月20日 16:34
>>>
>>> I still consider this not a useful or informative operation.
>>>
>>> -- Keir
>>>
>>> On 19/9/08 14:10, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:
>>>
>>>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
>>>>
>>>> Index: 2008-09-19/xen/arch/x86/platform_hypercall.c
>>>> ===================================================================
>>>> --- 2008-09-19.orig/xen/arch/x86/platform_hypercall.c 2008-09-19
>>>> 14:12:02.000000000 +0200
>>>> +++ 2008-09-19/xen/arch/x86/platform_hypercall.c 2008-09-19
>>> 14:12:56.000000000
>>>> +0200
>>>> @@ -21,7 +21,7 @@
>>>> #include <xen/acpi.h>
>>>> #include <asm/current.h>
>>>> #include <public/platform.h>
>>>> -#include <acpi/cpufreq/processor_perf.h>
>>>> +#include <acpi/cpufreq/cpufreq.h>
>>>> #include <asm/edd.h>
>>>> #include <asm/mtrr.h>
>>>> #include "cpu/mtrr/mtrr.h"
>>>> @@ -55,6 +55,7 @@ static long cpu_frequency_change_helper(
>>>> ret_t do_platform_op(XEN_GUEST_HANDLE(xen_platform_op_t)
>u_xenpf_op)
>>>> {
>>>> ret_t ret = 0;
>>>> + struct vcpu *v;
>>>> struct xen_platform_op curop, *op = &curop;
>>>>
>>>> if ( !IS_PRIV(current->domain) )
>>>> @@ -312,7 +313,6 @@ ret_t do_platform_op(XEN_GUEST_HANDLE(xe
>>>> {
>>>> uint32_t cpu;
>>>> uint64_t idletime, now = NOW();
>>>> - struct vcpu *v;
>>>> struct xenctl_cpumap ctlmap;
>>>> cpumask_t cpumap;
>>>> XEN_GUEST_HANDLE(uint8) cpumap_bitmap;
>>>> @@ -482,6 +482,20 @@ ret_t do_platform_op(XEN_GUEST_HANDLE(xe
>>>> break;
>>>> }
>>>> break;
>>>> +
>>>> + case XENPF_get_cpu_freq:
>>>> + if ( op->u.get_cpu_freq.vcpu >= MAX_VIRT_CPUS ||
>>>> + !(v =
>current->domain->vcpu[op->u.get_cpu_freq.vcpu]) )
>>>> + {
>>>> + ret = -EINVAL;
>>>> + break;
>>>> + }
>>>> +
>>>> + op->u.get_cpu_freq.freq =
>cpufreq_cpu_policy[v->processor] ?
>>>> + cpufreq_cpu_policy[v->processor]->cur : 0;
>>>> + if ( copy_field_to_guest(u_xenpf_op, op,
>>> u.get_cpu_freq.freq) )
>>>> + ret = -EFAULT;
>>>> + break;
>>>>
>>>> default:
>>>> ret = -ENOSYS;
>>>> Index: 2008-09-19/xen/arch/x86/x86_64/platform_hypercall.c
>>>> ===================================================================
>>>> --- 2008-09-19.orig/xen/arch/x86/x86_64/platform_hypercall.c
>>> 2008-09-19
>>>> 14:12:02.000000000 +0200
>>>> +++ 2008-09-19/xen/arch/x86/x86_64/platform_hypercall.c 2008-09-19
>>>> 13:59:35.000000000 +0200
>>>> @@ -21,6 +21,8 @@ DEFINE_XEN_GUEST_HANDLE(compat_platform_
>>>> #define xen_processor_power_t compat_processor_power_t
>>>> #define set_cx_pminfo compat_set_cx_pminfo
>>>>
>>>> +#define xenpf_get_cpu_freq compat_pf_get_cpu_freq
>>>> +
>>>> #define xenpf_enter_acpi_sleep compat_pf_enter_acpi_sleep
>>>>
>>>> #define COMPAT
>>>> Index: 2008-09-19/xen/include/public/platform.h
>>>> ===================================================================
>>>> --- 2008-09-19.orig/xen/include/public/platform.h 2008-09-19
>>>> 14:12:02.000000000 +0200
>>>> +++ 2008-09-19/xen/include/public/platform.h 2008-09-19
>>> 13:59:35.000000000
>>>> +0200
>>>> @@ -312,6 +312,16 @@ struct xenpf_set_processor_pminfo {
>>>> typedef struct xenpf_set_processor_pminfo
>>> xenpf_set_processor_pminfo_t;
>>>> DEFINE_XEN_GUEST_HANDLE(xenpf_set_processor_pminfo_t);
>>>>
>>>> +#define XENPF_get_cpu_freq 55
>>>> +struct xenpf_get_cpu_freq {
>>>> + /* IN variables */
>>>> + uint32_t vcpu;
>>>> + /* OUT variables */
>>>> + uint32_t freq; /* in kHz */
>>>> +};
>>>> +typedef struct xenpf_get_cpu_freq xenpf_get_cpu_freq_t;
>>>> +DEFINE_XEN_GUEST_HANDLE(xenpf_get_cpu_freq_t);
>>>> +
>>>> struct xen_platform_op {
>>>> uint32_t cmd;
>>>> uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
>>>> @@ -327,6 +337,7 @@ struct xen_platform_op {
>>>> struct xenpf_change_freq change_freq;
>>>> struct xenpf_getidletime getidletime;
>>>> struct xenpf_set_processor_pminfo set_pminfo;
>>>> + struct xenpf_get_cpu_freq get_cpu_freq;
>>>> uint8_t pad[128];
>>>> } u;
>>>> };
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>>> http://lists.xensource.com/xen-devel
>>>
>>>
>>>
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>> http://lists.xensource.com/xen-devel
>>>
>
>
>
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