qemu 2.11

Fixes required:

- split and fakeup a clean one feature per commit history
- lkmc_pci_min: use INTERFACE_CONVENTIONAL_PCI_DEVICE or an assert failed
- trace event location changes, use generated trace-events-all

CONTRIBUTING.adoc

@@ -7,8 +7,8 @@ Testing that should be done for every functional patch.
 === Guest testing
 
 ....
-./build
-./run -e '- lkmc_eval="/insrm.sh hello 5;wget -S google.com;poweroff;"' -n
+./run -a x86_64 -e '- lkmc_eval="/insrm.sh hello 5;wget -S google.com;poweroff;"' -n
+./run -a arm    -e '- lkmc_eval="/insrm.sh hello 5;wget -S google.com;poweroff;"'
 ....
 
 Should:
@@ -22,4 +22,16 @@ TODO automate all of this with a `/test-all.sh` script in guest which outputs to
 
 === Host testing
 
-* `./run -d` and on another shell `./rungdb start_kernel` should break GDB at `start_kernel`
+Shell 1:
+
+....
+./run -d
+....
+
+Shell 2:
+
+....
+./rungdb start_kernel
+....
+
+Should break GDB at `start_kernel`.

README.adoc

@@ -1097,10 +1097,10 @@ A friend told me this but I haven't tried it yet:
 Best attempt so far:
 
 ....
-time ./run -n -e 'init=/poweroff.out' -- -trace exec_tb,file=trace && \
-  time ./qemu/scripts/simpletrace.py qemu/trace-events trace >trace.txt && \
-  wc -l trace.txt && \
-  sed '/0x1000000/q' trace.txt >trace-boot.txt && \
+time ./run -n -e 'init=/poweroff.out' -- -trace exec_tb,file=trace
+time ./qemu/scripts/simpletrace.py buildroot/output.x86_64~/build/host-qemu-custom/trace-events-all trace >trace.txt
+wc -l trace.txt
+sed '/0x1000000/q' trace.txt >trace-boot.txt
 wc -l trace-boot.txt
 ....
 
@@ -1156,7 +1156,7 @@ This works because we have already done the following with QEMU:
 It makes 3x execution faster than the default trace backend which logs human readable data to stdout.
 +
 This also alters the actual execution, and reduces the instruction count by 10M TODO understand exactly why, possibly due to the `All QSes seen` thing.
-* the simple QEMU patch mentioned at: https://rwmj.wordpress.com/2016/03/17/tracing-qemu-guest-execution/ of removing the `disable` from `exec_tb` in the `trace-events` template file in the QEMU source
+* patch  QEMU source to remove the `disable` from `exec_tb` in the `trace-events`. See also: https://rwmj.wordpress.com/2016/03/17/tracing-qemu-guest-execution/
 
 Possible improvements: