From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Haozhong Zhang <haozhong.zhang@intel.com>,
xen-devel@lists.xen.org, Jan Beulich <jbeulich@suse.com>,
Kevin Tian <kevin.tian@intel.com>
Cc: Jun Nakajima <jun.nakajima@intel.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Keir Fraser <keir@xen.org>,
Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: Re: [PATCH v3 01/13] x86/time.c: Use correct guest TSC frequency in tsc_set_info()
Date: Mon, 4 Jan 2016 12:44:47 -0500 [thread overview]
Message-ID: <568AAF8F.5050507@oracle.com> (raw)
In-Reply-To: <1451531020-29964-2-git-send-email-haozhong.zhang@intel.com>
On 12/30/2015 10:03 PM, Haozhong Zhang wrote:
> When TSC_MODE_PVRDTSCP is used for a HVM container and TSC scaling is
> available, use the non-zero value of argument gtsc_khz of tsc_set_info()
> as the guest TSC frequency rather than using the host TSC
> frequency. Otherwise, TSC scaling will not be able get the correct ratio
> between the host and guest TSC frequencies.
>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
next prev parent reply other threads:[~2016-01-04 17:44 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-31 3:03 [PATCH v3 00/13] Add VMX TSC scaling support Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 01/13] x86/time.c: Use correct guest TSC frequency in tsc_set_info() Haozhong Zhang
2016-01-04 17:44 ` Boris Ostrovsky [this message]
2015-12-31 3:03 ` [PATCH v3 02/13] x86/time.c: Use correct guest TSC frequency in tsc_get_info() Haozhong Zhang
2016-01-04 17:48 ` Boris Ostrovsky
2016-01-05 0:32 ` Haozhong Zhang
2016-01-08 9:05 ` Jan Beulich
2016-01-08 9:12 ` Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 03/13] x86/hvm: Scale host TSC when setting/getting guest TSC Haozhong Zhang
2016-01-08 9:15 ` Jan Beulich
2016-01-08 14:04 ` Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 04/13] x86/time.c: Scale host TSC in pvclock properly Haozhong Zhang
2016-01-04 18:09 ` Boris Ostrovsky
2016-01-05 0:59 ` Haozhong Zhang
2016-01-05 16:15 ` Boris Ostrovsky
2016-01-06 0:56 ` Haozhong Zhang
2016-01-08 9:20 ` Jan Beulich
2016-01-08 13:22 ` Haozhong Zhang
2016-01-08 13:43 ` Jan Beulich
2016-01-08 13:50 ` Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 05/13] svm: Remove redundant TSC scaling in svm_set_tsc_offset() Haozhong Zhang
2016-01-08 9:22 ` Jan Beulich
2016-01-08 13:24 ` Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 06/13] x86/hvm: Collect information of TSC scaling ratio Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 07/13] x86: Add functions for 64-bit integer arithmetic Haozhong Zhang
2016-01-04 18:26 ` Boris Ostrovsky
2016-01-05 1:15 ` Haozhong Zhang
2016-01-05 16:21 ` Boris Ostrovsky
2016-01-08 9:34 ` Jan Beulich
2016-01-08 13:48 ` Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 08/13] x86/hvm: Setup TSC scaling ratio Haozhong Zhang
2016-01-04 18:40 ` Boris Ostrovsky
2016-01-05 1:20 ` Haozhong Zhang
2016-01-08 9:44 ` Jan Beulich
2016-01-08 13:55 ` Haozhong Zhang
2016-01-08 14:04 ` Jan Beulich
2016-01-08 14:10 ` Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 09/13] x86/hvm: Replace architecture TSC scaling by a common function Haozhong Zhang
2016-01-04 18:42 ` Boris Ostrovsky
2016-01-12 16:44 ` Jan Beulich
2015-12-31 3:03 ` [PATCH v3 10/13] x86/hvm: Move saving/loading vcpu's TSC to common code Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 11/13] x86/hvm: Detect TSC scaling through hvm_funcs Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 12/13] vmx: Add VMX RDTSC(P) scaling support Haozhong Zhang
2016-01-12 16:48 ` Jan Beulich
2016-01-14 4:52 ` Haozhong Zhang
2016-01-14 9:05 ` Jan Beulich
2016-01-14 9:47 ` Haozhong Zhang
2015-12-31 3:03 ` [PATCH v3 13/13] docs: Add descriptions of TSC scaling in xl.cfg and tscmode.txt Haozhong Zhang
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