This patch pass through Intel processor trace MSRs
to guest.
Signed-off-by: Luwei Kang
---
xen/arch/x86/cpu/intel_pt.c | 8
1 file changed, 8 insertions(+)
diff --git a/xen/arch/x86/cpu/intel_pt.c b/xen/arch/x86/cpu/intel_pt.c
index 411b922..8e83b87 100644
--- a/xen/arch/x86/cpu
ned-off-by: Luwei Kang
---
xen/arch/x86/hvm/vmx/vmcs.c| 36 +++-
xen/include/asm-x86/hvm/vmx/vmcs.h | 7 +++
2 files changed, 38 insertions(+), 5 deletions(-)
diff --git a/xen/arch/x86/hvm/vmx/vmcs.c b/xen/arch/x86/hvm/vmx/vmcs.c
index f62fe7e..8cd57b5 10
This patch add Intel processor trace support
for cpuid handling.
Signed-off-by: Luwei Kang
---
tools/libxc/xc_cpuid_x86.c | 12 ++--
xen/arch/x86/cpuid.c| 22 ++
xen/arch/x86/domctl.c | 4
xen
This patch add Intel processor trace context
date structure for guest.
Signed-off-by: Luwei Kang
---
xen/include/asm-x86/hvm/vmx/vmcs.h | 3 +++
xen/include/asm-x86/intel_pt.h | 17 +
xen/include/asm-x86/msr-index.h| 16
3 files changed, 36 insertions
This patch implement Intel proecessor trace context switch.
Signed-off-by: Luwei Kang
---
xen/arch/x86/cpu/intel_pt.c| 79 ++
xen/arch/x86/hvm/vmx/vmx.c | 4 ++
xen/include/asm-x86/hvm/vmx/vmcs.h | 2 +
xen/include/asm-x86/intel_pt.h
This patch add a flag to enable Intel PT (Intel processor trace).
Default value is 1 (enabled).
Signed-off-by: Luwei Kang
---
docs/misc/xen-command-line.markdown | 7 +++
xen/arch/x86/cpu/Makefile | 1 +
xen/arch/x86/cpu/intel_pt.c | 27 +++
xen
tions, and other output events.
Luwei Kang (6):
x86: add a flag to enable Intel processor trace
x86: configure vmcs for Intel processor trace virtualization
x86: add intel proecessor trace support for cpuid
x86: add intel processor trace context
x86: implement intel processor trace co
prevent send a remote call to an offlined pCPU.
Signed-off-by: Luwei Kang
---
v4:
1.remove cpu_online() check in vpm_load();
2.remove "vpmu_" prefix;
3.fix a coding style;
4.add some commit message about VPMU_CONTEXT_LOADED in vpmu_arch_destroy();
v3:
1.add cpu_online() check in vpm_
pCPU will be switch to other
online cpu. A remote call will be send to pCPU N to save the
vpmu context before loading the vpmu context on this pCPU.
System will hang in function on_select_cpus() because of that pCPU
is offlined and can not do any respond.
Signed-off-by: Luwei Kang
---
v3:
1.add
pCPU will be switch to other
online cpu. A remote call will be send to pCPU N to save the
vpmu context before loading the vpmu context on this pCPU.
System will hang in function on_select_cpus() because of that pCPU
is offlined and can not do any respond.
Signed-off-by: Luwei Kang
---
v2:
1.fix
before will be switch
to other online cpu. Before load the vpmu context to new physical
cpu, a IPI will be send to cpu N to save the vpmu context.
System will hang in function on_select_cpus because of that
physical cpu is offline and can not do any response.
Signed-off-by: Luwei Kang
---
xen
e and add ability
to set max freq with default cpuid.
Signed-off-by: Luwei Kang
---
tools/misc/xenpm.c | 8 +---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tools/misc/xenpm.c b/tools/misc/xenpm.c
index ded40b9..762311e 100644
--- a/tools/misc/xenpm.c
+++ b/tools/misc/xenp
d ability
to set max freq with default cpuid.
Signed-off-by: Luwei Kang
---
tools/misc/xenpm.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/tools/misc/xenpm.c b/tools/misc/xenpm.c
index ded40b9..abe31b5 100644
--- a/tools/misc/xenpm.c
+++ b/tools/misc/xenpm.c
@@ -9
vpmu_enable() can not use for check if vpmu is enabled in guest during
booting up. Because linux kernel get the status of if supported pmu
is earler than xen vpmu initialise. vpmu_enable() will return false
even if vpmu has been enabled in guest.
Signed-off-by: Luwei Kang
---
xen/arch/x86/cpu
just set the corresponding bits of which counter happened overflow,
rather than set all the available bits of IA32_PERF_GLOBAL_OVF_CTRL
when happened pmu interrupt.
Signed-off-by: Luwei Kang
---
v2:modify the description of this patch.
---
xen/arch/x86/cpu/vpmu_intel.c | 2 +-
1 file changed, 1
If a counter happend overflow just clear corresponding bit of
IA32_PERF_GLOBAL_OVF_CTRL, rather than clear all the bit of this msr.
Signed-off-by: Luwei Kang
---
xen/arch/x86/cpu/vpmu_intel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/arch/x86/cpu/vpmu_intel.c b/xen
IA32_PERF_GLOBAL_STATUS.OvfUncore (MSR 38EH, bit[61]) is always 0 and
writing 1 to IA32_PERF_GLOBAL_OVF_CTRL.ClrOvfUncore (MSR 390H, bit[61])
signals #GP.
Reference "Intel Xeon Phi Procssor x200 Product Family", document
number 334646-008.
Signed-off-by: Luwei Kang
---
xen/ar
Enable get xstate cpuid leaf information regarding avx512 in guest.
Signed-off-by: Luwei Kang
---
tools/libxc/xc_cpuid_x86.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/tools/libxc/xc_cpuid_x86.c b/tools/libxc/xc_cpuid_x86.c
index de06b32..d761805 100644
--- a/tools/libxc
AVX512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX512 features by CPUID.
Signed-off-by: Luwei Kang
---
[V5]:
Modify the comment of dependency between AVX512 and AVX2.
[V4]:
Update the
AVX-512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX-512 features by CPUID.
Signed-off-by: Luwei Kang
---
[V4]:
Update the description about features dependency.
[V3]:
Adjust dependencies
AVX-512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX-512 features by CPUID.
Signed-off-by: Luwei Kang
---
[V3]
1.adjust dependencies between features.
[V2]
1.one per bit, change from
AVX-512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX-512 features by CPUID.
Signed-off-by: Luwei Kang
---
xen/arch/x86/hvm/hvm.c | 14 ++
xen/arch/x86
AVX-512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX-512 features by CPUID.
Signed-off-by: Luwei Kang
---
xen/arch/x86/hvm/hvm.c | 14 ++
xen/arch/x86
AVX-512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX-512 features by CPUID.
Signed-off-by: Luwei Kang
---
xen/arch/x86/hvm/hvm.c | 8
xen/arch/x86/traps.c
: Luwei Kang
---
xen/arch/x86/traps.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c
index 1ef8401..5e72e44 100644
--- a/xen/arch/x86/traps.c
+++ b/xen/arch/x86/traps.c
@@ -1100,6 +1100,9 @@ void pv_cpuid(struct cpu_user_regs *regs
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