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Simics doesn't model LPC port 80h. Writing to it terminates the
simulation due to an invalid LPC memory access. This patch adds a
check to ensure port 80h isn't accessed if we are running under
Simics.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
[stewart: fixup run-port80h test]
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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There's a thought to write more extensive boot progress codes to LPC
ports 81 and 82 to supplement/replace any reliance on port 80.
We want to still emit port 80 for platforms like Zaius and Barreleye
that have the physical display. Ports 81 and 82 can be monitored by a
BMC though.
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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This is an adaptation of what we currently do for op_display() on FSP
machines, inventing an encoding for what we can write into the single
byte at LPC port 80h.
Port 80h is often used on x86 systems to indicate boot progress/status
and dates back a decent amount of time. Since a byte isn't exactly very
expressive for everything that can go on (and wrong) during boot, it's
all about compromise.
Some systems (such as Zaius/Barreleye G2) have a physical dual 7 segment
display that display these codes. So far, this has only been driven by
hostboot (see hostboot commit 90ec2e65314c).
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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Currently we pass in a proc_chip structure to phys_map_get(). All we we
really need from this structure is the Global Chip ID (GCID). This
patch reworks the function so that we only need to pass the GCID which
allows us to use it before the proc_chip structures have been
initialised (i.e in the HDAT parser).
Cc: Michael Neuling <mikey@neuling.org>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Acked-By: Michael Neuling <mikey@neuling.org>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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This adds a couple of tests to ensure that there are no holes in the
map for MMIO mappings and the map is sorted by start address.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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This adds a bunch of tests to the physical memory map
infrastructure. It checks for overlaps and alignment..
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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