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trace: Add 'vcpu' event property to trace guest vCPU

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This property identifies events that trace vCPU-specific information.

It adds a "CPUState*" argument to events with the property, identifying
the vCPU raising the event. TCG translation events also have a
"TCGv_env" implicit argument that is later used as the "CPUState*"
argument at execution time.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 145641861797.30295.6991314023181842105.stgit@localhost
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Lluís Vilanova 2016-02-25 17:43:38 +01:00 • committed by Stefan Hajnoczi
parent b23197f9cf
commit 3d211d9f4d
11 changed files with 189 additions and 32 deletions
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5
scripts/tracetool/format/tcg_helper_wrapper_h.py
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@ -6,7 +6,7 @@ Generate trace/generated-helpers-wrappers.h.
"""
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
__copyright__ = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
__copyright__ = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
__license__ = "GPL version 2 or (at your option) any later version"
__maintainer__ = "Stefan Hajnoczi"
@ -15,6 +15,7 @@ __email__ = "stefanha@linux.vnet.ibm.com"
from tracetool import out
from tracetool.transform import *
import tracetool.vcpu
def generate(events, backend):
@ -33,7 +34,7 @@ def generate(events, backend):
continue
# tracetool.generate always transforms types to host
e_args = e.original.args
e_args = tracetool.vcpu.transform_args("tcg_helper_c", e.original, "wrapper")
# mixed-type to TCG helper bridge
args_tcg_compat = e_args.transform(HOST_2_TCG_COMPAT)