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pnv/xive: Support cache flush and queue sync inject with notifications

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Adds support for writing a completion notification byte in memory
whenever a cache flush or queue sync inject operation is requested by
software.  QEMU does not cache any of the XIVE data that is in memory and
therefore it simply writes the completion notification byte at the time
that the operation is requested.

Co-authored-by: Glenn Miles <milesg@linux.vnet.ibm.com>

Signed-off-by: Glenn Miles <milesg@linux.vnet.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
This commit is contained in:
Nicholas Piggin 2024-07-24 16:21:22 -05:00
parent 64770efd66
commit 76125c0132
3 changed files with 169 additions and 2 deletions
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1
include/hw/ppc/pnv_chip.h
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@ -139,6 +139,7 @@ struct Pnv10Chip {
#define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
#define PNV10_PIR2CHIP(pir) (((pir) >> 8) & 0x7f)
#define PNV10_PIR2THREAD(pir) (((pir) & 0x7f))
struct PnvChipClass {
/*< private >*/