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/qemu/include/hw/ppc/
H A Dspapr_ovec.he957f6a9b92439a222ecd4ff1c8cdc9700710c72 Sun Mar 19 23:46:49 UTC 2017 Sam Bobroff <sam.bobroff@au1.ibm.com> spapr: Workaround for broken radix guests

For a little while around 4.9, Linux kernels that saw the radix bit in
ibm,pa-features would attempt to set up the MMU as if they were a
hypervisor, even if they were a guest, which would cause them to
crash.

Work around this by detecting pre-ISA 3.0 guests by their lack of that
bit in option vector 1, and then removing the radix bit from
ibm,pa-features. Note: This now requires regeneration of that node
after CAS negotiation.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
[dwg: Fix style nits]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
H A Dspapr.he957f6a9b92439a222ecd4ff1c8cdc9700710c72 Sun Mar 19 23:46:49 UTC 2017 Sam Bobroff <sam.bobroff@au1.ibm.com> spapr: Workaround for broken radix guests

For a little while around 4.9, Linux kernels that saw the radix bit in
ibm,pa-features would attempt to set up the MMU as if they were a
hypervisor, even if they were a guest, which would cause them to
crash.

Work around this by detecting pre-ISA 3.0 guests by their lack of that
bit in option vector 1, and then removing the radix bit from
ibm,pa-features. Note: This now requires regeneration of that node
after CAS negotiation.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
[dwg: Fix style nits]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
/qemu/hw/ppc/
H A Dspapr_hcall.ce957f6a9b92439a222ecd4ff1c8cdc9700710c72 Sun Mar 19 23:46:49 UTC 2017 Sam Bobroff <sam.bobroff@au1.ibm.com> spapr: Workaround for broken radix guests

For a little while around 4.9, Linux kernels that saw the radix bit in
ibm,pa-features would attempt to set up the MMU as if they were a
hypervisor, even if they were a guest, which would cause them to
crash.

Work around this by detecting pre-ISA 3.0 guests by their lack of that
bit in option vector 1, and then removing the radix bit from
ibm,pa-features. Note: This now requires regeneration of that node
after CAS negotiation.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
[dwg: Fix style nits]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
H A Dspapr.ce957f6a9b92439a222ecd4ff1c8cdc9700710c72 Sun Mar 19 23:46:49 UTC 2017 Sam Bobroff <sam.bobroff@au1.ibm.com> spapr: Workaround for broken radix guests

For a little while around 4.9, Linux kernels that saw the radix bit in
ibm,pa-features would attempt to set up the MMU as if they were a
hypervisor, even if they were a guest, which would cause them to
crash.

Work around this by detecting pre-ISA 3.0 guests by their lack of that
bit in option vector 1, and then removing the radix bit from
ibm,pa-features. Note: This now requires regeneration of that node
after CAS negotiation.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
[dwg: Fix style nits]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>