All of lore.kernel.org
 help / color / mirror / Atom feed
From: Luwei Kang <luwei.kang@intel.com>
To: kvm@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
	x86@kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com,
	linux-kernel@vger.kernel.org, joro@8bytes.org,
	peterz@infradead.org, chao.p.peng@linux.intel.com,
	Luwei Kang <luwei.kang@intel.com>
Subject: [PATCH v7 03/13] perf/x86/intel/pt: Add new bit definitions for Intel PT MSRs
Date: Thu,  3 May 2018 20:08:33 +0800	[thread overview]
Message-ID: <1525349323-9938-4-git-send-email-luwei.kang@intel.com> (raw)
In-Reply-To: <1525349323-9938-1-git-send-email-luwei.kang@intel.com>

These new bit definitions are use for emulate MSRs read/write
for KVM. For example, IA32_RTIT_CTL.FabricEn[bit 6] is available
only when CPUID.(EAX=14H, ECX=0):ECX[bit 3] = 1. If KVM guest
try to set this bit with CPUID.(EAX=14H, ECX=0):ECX[bit3] = 0
a #GP would be injected to KVM guest.

Signed-off-by: Luwei Kang <luwei.kang@intel.com>
---
 arch/x86/include/asm/msr-index.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index c168e26..cc9e681 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -112,6 +112,7 @@
 #define RTIT_CTL_USR			BIT(3)
 #define RTIT_CTL_PWR_EVT_EN		BIT(4)
 #define RTIT_CTL_FUP_ON_PTW		BIT(5)
+#define RTIT_CTL_FABRIC_EN		BIT(6)
 #define RTIT_CTL_CR3EN			BIT(7)
 #define RTIT_CTL_TOPA			BIT(8)
 #define RTIT_CTL_MTC_EN			BIT(9)
@@ -140,6 +141,8 @@
 #define RTIT_STATUS_BUFFOVF		BIT(3)
 #define RTIT_STATUS_ERROR		BIT(4)
 #define RTIT_STATUS_STOPPED		BIT(5)
+#define RTIT_STATUS_BYTECNT_OFFSET	32
+#define RTIT_STATUS_BYTECNT		(0x1ffffull << RTIT_STATUS_BYTECNT_OFFSET)
 #define MSR_IA32_RTIT_ADDR0_A		0x00000580
 #define MSR_IA32_RTIT_ADDR0_B		0x00000581
 #define MSR_IA32_RTIT_ADDR1_A		0x00000582
-- 
1.8.3.1

  parent reply	other threads:[~2018-05-03 10:15 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-03 12:08 [PATCH v7 00/13] Intel Processor Trace virtualization enabling Luwei Kang
2018-05-03 10:33 ` Alexander Shishkin
2018-05-03 12:08 ` [PATCH v7 01/13] perf/x86/intel/pt: Move Intel-PT MSRs bit definitions to a public header Luwei Kang
2018-05-03 12:08 ` [PATCH v7 02/13] perf/x86/intel/pt: Change pt_cap_get() to a public function Luwei Kang
2018-05-03 12:08 ` Luwei Kang [this message]
2018-05-03 12:08 ` [PATCH v7 04/13] perf/x86/intel/pt: add new capability for Intel PT Luwei Kang
2018-05-03 12:08 ` [PATCH v7 05/13] perf/x86/intel/pt: Introduce a new function to get capability of " Luwei Kang
2018-05-03 10:50   ` Alexander Shishkin
2018-05-03 11:04     ` Kang, Luwei
2018-05-03 12:13       ` Alexander Shishkin
2018-05-03 12:30         ` Paolo Bonzini
2018-05-03 12:30         ` Kang, Luwei
2018-05-03 12:32           ` Paolo Bonzini
2018-05-03 12:50             ` Kang, Luwei
2018-05-03 12:59               ` Alexander Shishkin
2018-05-03 12:08 ` [PATCH v7 06/13] KVM: x86: Add Intel Processor Trace virtualization mode Luwei Kang
2018-05-03 11:32   ` Alexander Shishkin
2018-05-03 11:50     ` Paolo Bonzini
2018-05-03 12:02       ` Alexander Shishkin
2018-05-03 12:30         ` Paolo Bonzini
2018-05-03 12:48           ` Alexander Shishkin
2018-05-03 12:50             ` Paolo Bonzini
2018-05-03 13:38               ` Alexander Shishkin
2018-05-03 13:48                 ` Paolo Bonzini
2018-05-04 10:38                   ` Alexander Shishkin
2018-05-04 21:52                     ` Paolo Bonzini
2018-05-04 10:45                 ` Peter Zijlstra
2018-05-04 21:44                   ` Paolo Bonzini
2018-05-04 22:15                     ` Peter Zijlstra
2018-05-07 10:47                       ` Paolo Bonzini
2018-05-03 11:52     ` Paolo Bonzini
2018-05-03 12:09       ` Alexander Shishkin
2018-05-03 12:31         ` Paolo Bonzini
2018-05-03 12:08 ` [PATCH v7 07/13] KVM: x86: Add Intel Processor Trace cpuid emulation Luwei Kang
2018-05-03 12:08 ` [PATCH v7 08/13] KVM: x86: Add Intel processor trace context for each vcpu Luwei Kang
2018-05-03 11:39   ` Alexander Shishkin
2018-05-03 11:53     ` Paolo Bonzini
2018-05-03 12:08 ` [PATCH v7 09/13] KVM: x86: Implement Intel Processor Trace context switch Luwei Kang
2018-05-04 10:29   ` Alexander Shishkin
2018-05-04 21:49     ` Paolo Bonzini
2018-05-03 12:08 ` [PATCH v7 10/13] KVM: x86: Introduce a function to initialize the PT configuration Luwei Kang
2018-05-03 12:08 ` [PATCH v7 11/13] KVM: x86: Implement Intel Processor Trace MSRs read/write Luwei Kang
2018-05-04 10:11   ` Alexander Shishkin
2018-05-04 21:47     ` Paolo Bonzini
2018-05-03 12:08 ` [PATCH v7 12/13] KVM: x86: Set intercept for Intel PT " Luwei Kang
2018-05-03 12:08 ` [PATCH v7 13/13] KVM: x86: Disable Intel Processor Trace when VMXON in L1 guest Luwei Kang
2018-05-04 10:23   ` Alexander Shishkin
2018-05-04 21:49     ` Paolo Bonzini
2018-05-03 12:13 [PATCH v7 00/13] Intel Processor Trace virtualization enabling Luwei Kang
2018-05-03 12:13 ` [PATCH v7 03/13] perf/x86/intel/pt: Add new bit definitions for Intel PT MSRs Luwei Kang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1525349323-9938-4-git-send-email-luwei.kang@intel.com \
    --to=luwei.kang@intel.com \
    --cc=chao.p.peng@linux.intel.com \
    --cc=hpa@zytor.com \
    --cc=joro@8bytes.org \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=peterz@infradead.org \
    --cc=rkrcmar@redhat.com \
    --cc=tglx@linutronix.de \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.