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
next prev parent reply other threads:[~2018-05-03 12:08 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
-- strict thread matches above, loose matches on Subject: below --
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
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