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| author | Glenn Miles <milesg@linux.ibm.com> | 2025-05-12 13:10:34 +1000 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2025-07-21 08:03:52 +0200 |
| commit | 97cd373e6ca0024132e78496b8a585c00531f7a4 (patch) | |
| tree | b37ad3ffeaa176d400a8ef42de9f4d2abc0d7f40 /include | |
| parent | 1a0cd94252bf111b0ace7b9cd88258e837d95ea4 (diff) | |
| download | qemu-97cd373e6ca0024132e78496b8a585c00531f7a4.zip qemu-97cd373e6ca0024132e78496b8a585c00531f7a4.tar.gz qemu-97cd373e6ca0024132e78496b8a585c00531f7a4.tar.bz2 | |
ppc/xive2: Implement "Ack OS IRQ to even report line" TIMA op
Booting AIX in a PowerVM partition requires the use of the "Acknowledge
O/S Interrupt to even O/S reporting line" special operation provided by
the IBM XIVE interrupt controller. This operation is invoked by writing
a byte (data is irrelevant) to offset 0xC10 of the Thread Interrupt
Management Area (TIMA). It can be used by software to notify the XIVE
logic that the interrupt was received.
Signed-off-by: Glenn Miles <milesg@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Michael Kowal <kowal@linux.ibm.com>
Tested-by: Gautam Menghani <gautam@linux.ibm.com>
Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-26-npiggin@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/ppc/xive.h | 1 | ||||
| -rw-r--r-- | include/hw/ppc/xive2.h | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h index 28f0f1b..46d05d7 100644 --- a/include/hw/ppc/xive.h +++ b/include/hw/ppc/xive.h @@ -561,6 +561,7 @@ void xive_tctx_pipr_update(XiveTCTX *tctx, uint8_t ring, uint8_t priority, uint8_t group_level); void xive_tctx_reset_signal(XiveTCTX *tctx, uint8_t ring); void xive_tctx_notify(XiveTCTX *tctx, uint8_t ring, uint8_t group_level); +uint64_t xive_tctx_accept(XiveTCTX *tctx, uint8_t ring); /* * KVM XIVE device helpers diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h index 760b94a..ff02ce2 100644 --- a/include/hw/ppc/xive2.h +++ b/include/hw/ppc/xive2.h @@ -142,5 +142,6 @@ void xive2_tm_set_hv_target(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset, uint64_t value, unsigned size); void xive2_tm_pull_phys_ctx_ol(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset, uint64_t value, unsigned size); - +void xive2_tm_ack_os_el(XivePresenter *xptr, XiveTCTX *tctx, + hwaddr offset, uint64_t value, unsigned size); #endif /* PPC_XIVE2_H */ |