From: Daniel De Graaf <dgdegra@tycho.nsa.gov>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
jbeulich@suse.com, kevin.tian@intel.com,
suravee.suthikulpanit@amd.com, Aravind.Gopalakrishnan@amd.com,
dietmar.hahn@ts.fujitsu.com
Cc: andrew.cooper3@citrix.com, xen-devel@lists.xen.org, keir@xen.org,
jun.nakajima@intel.com, tim@xen.org
Subject: Re: [PATCH v12 for-xen-4.5 16/20] x86/VPMU: Handle PMU interrupts for PV guests
Date: Fri, 26 Sep 2014 18:09:21 -0400 [thread overview]
Message-ID: <5425E411.4000106@tycho.nsa.gov> (raw)
In-Reply-To: <1411673336-32736-17-git-send-email-boris.ostrovsky@oracle.com>
On 09/25/2014 03:28 PM, Boris Ostrovsky wrote:
> Add support for handling PMU interrupts for PV guests.
>
> VPMU for the interrupted VCPU is unloaded until the guest issues XENPMU_flush
> hypercall. This allows the guest to access PMU MSR values that are stored in
> VPMU context which is shared between hypervisor and domain, thus avoiding
> traps to hypervisor.
>
> Since the interrupt handler may now force VPMU context save (i.e. set
> VPMU_CONTEXT_SAVE flag) we need to make changes to amd_vpmu_save() which
> until now expected this flag to be set only when the counters were stopped.
>
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
For the XSM parts:
Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
next prev parent reply other threads:[~2014-09-26 22:09 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-25 19:28 [PATCH v12 for-xen-4.5 00/20] x86/PMU: Xen PMU PV(H) support Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 01/20] common/symbols: Export hypervisor symbols to privileged guest Boris Ostrovsky
2014-09-26 14:58 ` Konrad Rzeszutek Wilk
2014-09-26 15:10 ` Jan Beulich
2014-09-26 16:49 ` Konrad Rzeszutek Wilk
2014-09-29 6:43 ` Jan Beulich
2014-09-29 13:29 ` Boris Ostrovsky
2014-09-29 13:47 ` Jan Beulich
2014-09-29 14:16 ` Boris Ostrovsky
2014-09-29 14:33 ` Jan Beulich
2014-09-26 21:43 ` Daniel De Graaf
2014-09-26 22:12 ` Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 02/20] x86/VPMU: Manage VPMU_CONTEXT_SAVE flag in vpmu_save_force() Boris Ostrovsky
2014-09-26 14:49 ` Konrad Rzeszutek Wilk
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 03/20] x86/VPMU: Set MSR bitmaps only for HVM/PVH guests Boris Ostrovsky
2014-09-26 14:59 ` Konrad Rzeszutek Wilk
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 04/20] x86/VPMU: Make vpmu macros a bit more efficient Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 05/20] intel/VPMU: Clean up Intel VPMU code Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 06/20] vmx: Merge MSR management routines Boris Ostrovsky
2014-09-26 20:48 ` Tian, Kevin
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 07/20] x86/VPMU: Handle APIC_LVTPC accesses Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 08/20] intel/VPMU: MSR_CORE_PERF_GLOBAL_CTRL should be initialized to zero Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 09/20] x86/VPMU: Add public xenpmu.h Boris Ostrovsky
2014-09-26 20:49 ` Tian, Kevin
2014-09-29 14:17 ` Jan Beulich
2014-09-29 14:30 ` Jan Beulich
2014-09-29 15:19 ` Boris Ostrovsky
2014-09-29 15:41 ` Jan Beulich
2014-09-29 15:48 ` Boris Ostrovsky
2014-09-29 14:57 ` Boris Ostrovsky
2014-09-29 15:40 ` Jan Beulich
2014-09-29 15:56 ` Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 10/20] x86/VPMU: Make vpmu not HVM-specific Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 11/20] x86/VPMU: Interface for setting PMU mode and flags Boris Ostrovsky
2014-09-26 21:04 ` Tian, Kevin
2014-09-26 21:24 ` Boris Ostrovsky
2014-09-26 22:00 ` Daniel De Graaf
2014-09-26 22:26 ` Boris Ostrovsky
2014-09-29 13:25 ` Dietmar Hahn
2014-09-29 13:56 ` Boris Ostrovsky
2014-09-29 14:03 ` Dietmar Hahn
2014-09-29 13:59 ` Jan Beulich
2014-09-29 14:05 ` Dietmar Hahn
2014-09-29 15:14 ` Jan Beulich
2014-09-29 15:34 ` Boris Ostrovsky
2014-10-01 0:48 ` Tian, Kevin
2014-10-01 0:56 ` Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 12/20] x86/VPMU: Initialize PMU for PV(H) guests Boris Ostrovsky
2014-09-26 22:16 ` Daniel De Graaf
2014-09-26 22:23 ` Boris Ostrovsky
2014-09-29 15:25 ` Jan Beulich
2014-09-29 15:41 ` Boris Ostrovsky
2014-09-29 15:42 ` Jan Beulich
2014-09-29 16:04 ` Boris Ostrovsky
2014-09-29 16:10 ` Jan Beulich
2014-10-01 0:16 ` Tian, Kevin
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 13/20] x86/VPMU: Save VPMU state for PV guests during context switch Boris Ostrovsky
2014-09-29 15:52 ` Jan Beulich
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 14/20] x86/VPMU: When handling MSR accesses, leave fault injection to callers Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 15/20] x86/VPMU: Add support for PMU register handling on PV guests Boris Ostrovsky
2014-09-26 16:34 ` Konrad Rzeszutek Wilk
2014-09-26 16:44 ` Boris Ostrovsky
2014-09-26 16:49 ` Konrad Rzeszutek Wilk
2014-09-29 16:04 ` Jan Beulich
2014-10-01 0:17 ` Tian, Kevin
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 16/20] x86/VPMU: Handle PMU interrupts for " Boris Ostrovsky
2014-09-26 22:09 ` Daniel De Graaf [this message]
2014-09-30 8:11 ` Jan Beulich
2014-09-30 15:07 ` Boris Ostrovsky
2014-09-30 15:44 ` Jan Beulich
2014-09-30 16:37 ` Boris Ostrovsky
2014-10-01 6:49 ` Jan Beulich
2014-10-01 12:53 ` Boris Ostrovsky
2014-10-01 13:18 ` Jan Beulich
2014-10-01 14:08 ` Boris Ostrovsky
2014-10-01 14:26 ` Jan Beulich
2014-10-01 18:06 ` Boris Ostrovsky
2014-10-02 6:56 ` Jan Beulich
2014-10-02 13:53 ` Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 17/20] x86/VPMU: Merge vpmu_rdmsr and vpmu_wrmsr Boris Ostrovsky
2014-09-30 8:13 ` Jan Beulich
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 18/20] x86/VPMU: Add privileged PMU mode Boris Ostrovsky
2014-09-30 8:18 ` Jan Beulich
2014-09-30 15:16 ` Boris Ostrovsky
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 19/20] x86/VPMU: NMI-based VPMU support Boris Ostrovsky
2014-09-30 8:37 ` Jan Beulich
2014-10-01 0:18 ` Boris Ostrovsky
2014-10-01 7:32 ` Jan Beulich
2014-09-25 19:28 ` [PATCH v12 for-xen-4.5 20/20] x86/VPMU: Move VPMU files up from hvm/ directory Boris Ostrovsky
2014-09-30 8:40 ` Jan Beulich
2014-09-26 17:03 ` [PATCH v12 for-xen-4.5 00/20] x86/PMU: Xen PMU PV(H) support Konrad Rzeszutek Wilk
2014-09-29 13:28 ` Dietmar Hahn
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