From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Dietmar Hahn <dietmar.hahn@ts.fujitsu.com>
Cc: kevin.tian@intel.com, keir@xen.org, JBeulich@suse.com,
jun.nakajima@intel.com, andrew.cooper3@citrix.com,
donald.d.dugger@intel.com, xen-devel@lists.xen.org,
suravee.suthikulpanit@amd.com
Subject: Re: [PATCH v6 08/19] x86/VPMU: Add public xenpmu.h
Date: Wed, 21 May 2014 09:56:58 -0400 [thread overview]
Message-ID: <537CB0AA.6030900@oracle.com> (raw)
In-Reply-To: <5626238.Vjzfje9UQu@amur>
On 05/21/2014 03:19 AM, Dietmar Hahn wrote:
> Am Dienstag 13 Mai 2014, 11:53:22 schrieb Boris Ostrovsky:
>> Add pmu.h header files, move various macros and structures that will be
>> shared between hypervisor and PV guests to it.
>>
>> Move MSR banks out of architectural PMU structures to allow for larger sizes
>> in the future. The banks are allocated immediately after the context and
>> PMU structures store offsets to them.
>>
>> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
>> Reviewed-by: Dietmar Hahn <dietmar.hahn@ts.fujitsu.com>
>> Tested-by: Dietmar Hahn <dietmar.hahn@ts.fujitsu.com>
> It seems I didn't test right because calling
> # xl debug-keys q
> when running a HVM linux guest crashs the hypervisor.
> Please see below.
Yes, trying to dereference pointer that it explicitly set to NULL two
lines above is not a particularly good idea.
Thanks for debugging this.
-boris
next prev parent reply other threads:[~2014-05-21 13:56 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-13 15:53 [PATCH v6 00/19] x86/PMU: Xen PMU PV(H) support Boris Ostrovsky
2014-05-13 15:53 ` [PATCH v6 01/19] common/symbols: Export hypervisor symbols to privileged guest Boris Ostrovsky
2014-05-16 8:05 ` Jan Beulich
2014-05-16 14:58 ` Boris Ostrovsky
2014-05-16 15:16 ` Jan Beulich
2014-05-16 16:12 ` Boris Ostrovsky
2014-06-05 10:29 ` Tim Deegan
2014-05-13 15:53 ` [PATCH v6 02/19] VPMU: Mark context LOADED before registers are loaded Boris Ostrovsky
2014-05-19 14:18 ` Jan Beulich
2014-05-19 15:28 ` Boris Ostrovsky
2014-05-13 15:53 ` [PATCH v6 03/19] x86/VPMU: Minor VPMU cleanup Boris Ostrovsky
2014-05-19 11:55 ` Tian, Kevin
2014-05-19 14:26 ` Jan Beulich
2014-05-19 15:35 ` Boris Ostrovsky
2014-05-19 15:42 ` Jan Beulich
2014-05-13 15:53 ` [PATCH v6 04/19] intel/VPMU: Clean up Intel VPMU code Boris Ostrovsky
2014-05-19 11:59 ` Tian, Kevin
2014-05-19 14:30 ` Jan Beulich
2014-05-13 15:53 ` [PATCH v6 05/19] vmx: Merge MSR management routines Boris Ostrovsky
2014-05-19 12:00 ` Tian, Kevin
2014-05-22 10:24 ` Dietmar Hahn
2014-05-22 13:48 ` Boris Ostrovsky
2014-05-13 15:53 ` [PATCH v6 06/19] x86/VPMU: Handle APIC_LVTPC accesses Boris Ostrovsky
2014-05-13 15:53 ` [PATCH v6 07/19] intel/VPMU: MSR_CORE_PERF_GLOBAL_CTRL should be initialized to zero Boris Ostrovsky
2014-05-13 15:53 ` [PATCH v6 08/19] x86/VPMU: Add public xenpmu.h Boris Ostrovsky
2014-05-19 12:02 ` Tian, Kevin
2014-05-20 15:24 ` Jan Beulich
2014-05-20 17:28 ` Boris Ostrovsky
2014-05-21 7:19 ` Dietmar Hahn
2014-05-21 13:56 ` Boris Ostrovsky [this message]
2014-05-13 15:53 ` [PATCH v6 09/19] x86/VPMU: Make vpmu not HVM-specific Boris Ostrovsky
2014-05-13 15:53 ` [PATCH v6 10/19] x86/VPMU: Interface for setting PMU mode and flags Boris Ostrovsky
2014-05-20 15:40 ` Jan Beulich
2014-05-13 15:53 ` [PATCH v6 11/19] x86/VPMU: Initialize PMU for PV guests Boris Ostrovsky
2014-05-20 15:51 ` Jan Beulich
2014-05-20 17:47 ` Boris Ostrovsky
2014-05-21 8:01 ` Jan Beulich
2014-05-21 14:03 ` Boris Ostrovsky
2014-05-20 15:52 ` Jan Beulich
2014-05-13 15:53 ` [PATCH v6 12/19] x86/VPMU: Add support for PMU register handling on " Boris Ostrovsky
2014-05-22 14:50 ` Jan Beulich
2014-05-22 17:16 ` Boris Ostrovsky
2014-05-23 6:27 ` Jan Beulich
2014-05-13 15:53 ` [PATCH v6 13/19] x86/VPMU: Handle PMU interrupts for " Boris Ostrovsky
2014-05-22 15:30 ` Jan Beulich
2014-05-22 17:25 ` Boris Ostrovsky
2014-05-23 6:29 ` Jan Beulich
2014-05-13 15:53 ` [PATCH v6 14/19] x86/VPMU: Merge vpmu_rdmsr and vpmu_wrmsr Boris Ostrovsky
2014-05-19 12:04 ` Tian, Kevin
2014-05-13 15:53 ` [PATCH v6 15/19] x86/VPMU: Add privileged PMU mode Boris Ostrovsky
2014-05-26 11:48 ` Jan Beulich
2014-05-27 2:08 ` Boris Ostrovsky
2014-05-27 9:10 ` Jan Beulich
2014-05-27 13:31 ` Boris Ostrovsky
2014-05-13 15:53 ` [PATCH v6 16/19] x86/VPMU: Save VPMU state for PV guests during context switch Boris Ostrovsky
2014-05-26 12:03 ` Jan Beulich
2014-05-30 21:13 ` Tian, Kevin
2014-05-13 15:53 ` [PATCH v6 17/19] x86/VPMU: NMI-based VPMU support Boris Ostrovsky
2014-05-26 15:55 ` Jan Beulich
2014-05-27 2:57 ` Boris Ostrovsky
2014-05-30 21:12 ` Tian, Kevin
2014-05-13 15:53 ` [PATCH v6 18/19] x86/VPMU: Suport for PVH guests Boris Ostrovsky
2014-05-13 15:53 ` [PATCH v6 19/19] x86/VPMU: Move VPMU files up from hvm/ directory Boris Ostrovsky
2014-05-16 7:40 ` [PATCH v6 00/19] x86/PMU: Xen PMU PV(H) support Jan Beulich
2014-05-16 14:57 ` Boris Ostrovsky
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