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List: qemu-discuss
Subject: How to insert /memreserve/ region in the device tree of qemu virt machine
From: "Chan Kim" <ckim () etri ! re ! kr>
Date: 2021-10-13 15:03:35
Message-ID: 02c301d7c043$7ec4af80$7c4e0e80$ () etri ! re ! kr
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Hello, all
The arm64 virt machine make fdt inside the machvirt_init function.
I found "/memreserve/ offset length;" in device tree makes the memory region
not be touched by the guest OS. (correct me if I'm wrong).
But this /memreserve/ sits outside the root(/) of the device tree so I can't
use qemu_fdt_setprop_string function.
Is there a way to put this /memreserve/ string effect in the fdt the virt
machine generates?
Thanks for the help.
Chan Kim
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vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hello, \
all<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>The arm64 virt machine \
make fdt inside the machvirt_init function.<o:p></o:p></span></p><p \
class=MsoNormal><span lang=EN-US>I found “/memreserve/ offset length;” in \
device tree makes the memory region not be touched by the guest OS. (correct me if \
I’m wrong).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>But this \
/memreserve/ sits outside the root(/) of the device tree so I can’t use \
qemu_fdt_setprop_string function.<o:p></o:p></span></p><p class=MsoNormal><span \
lang=EN-US>Is there a way to put this /memreserve/ string effect in the fdt the virt \
machine generates?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks \
for the help.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Chan \
Kim<o:p></o:p></span></p><p class=MsoNormal><span \
lang=EN-US><o:p> </o:p></span></p></div></body></html>
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