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| author | Benjamin Herrenschmidt | 2019-02-15 18:00:18 +0100 |
|---|---|---|
| committer | David Gibson | 2019-02-25 23:21:25 +0100 |
| commit | 00fd075e1894fabff10dc7cd61af9130903a23c9 (patch) | |
| tree | 012c2d7cbe2674fd561bf957fcd0c7e456b99d36 /include | |
| parent | tests/device-plug: Add memory unplug request test for spapr (diff) | |
| download | qemu-00fd075e1894fabff10dc7cd61af9130903a23c9.tar.gz qemu-00fd075e1894fabff10dc7cd61af9130903a23c9.tar.xz qemu-00fd075e1894fabff10dc7cd61af9130903a23c9.zip | |
target/ppc/spapr: Set LPCR:HR when using Radix mode
The HW relies on LPCR:HR along with the PATE to determine whether
to use Radix or Hash mode. In fact it uses LPCR:HR more commonly
than the PATE.
For us, it's also more efficient to do so, especially since unlike
the HW we do not maintain a cache of the current PATE and HV PATE
in a generic place.
Prepare the grounds for that by ensuring that LPCR:HR is set
properly on SPAPR machines.
Another option would have been to use a callback to get the PATE
but this gets messy when implementing bare metal support, it's
much simpler (and faster) to use LPCR.
Since existing migration streams may not have it, fix it up in
spapr_post_load() as well based on the pseudo-PATE entry that
we keep.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190215170029.15641-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/ppc/spapr.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index fec0f26f49..659204ea93 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -841,4 +841,5 @@ void spapr_check_pagesize(sPAPRMachineState *spapr, hwaddr pagesize, #define SPAPR_OV5_XIVE_EXPLOIT 0x40 #define SPAPR_OV5_XIVE_BOTH 0x80 /* Only to advertise on the platform */ +void spapr_set_all_lpcrs(target_ulong value, target_ulong mask); #endif /* HW_SPAPR_H */ |