diff options
| author | Frederic Barrat <fbarrat@linux.ibm.com> | 2025-03-11 11:51:21 +1000 |
|---|---|---|
| committer | Nicholas Piggin <npiggin@gmail.com> | 2025-03-11 22:43:31 +1000 |
| commit | 58fa4433e02a394872ff83c28edea174c43e6afb (patch) | |
| tree | e2d07128d5c86a1030bea37a11671b548c567b3f /include/hw | |
| parent | 9cb7f6ebed60739ff6e5f09e8ce85c9602d33f2a (diff) | |
| download | qemu-58fa4433e02a394872ff83c28edea174c43e6afb.zip qemu-58fa4433e02a394872ff83c28edea174c43e6afb.tar.gz qemu-58fa4433e02a394872ff83c28edea174c43e6afb.tar.bz2 | |
ppc/xive2: Add undelivered group interrupt to backlog
When a group interrupt cannot be delivered, we need to:
- increment the backlog counter for the group in the NVG table
(if the END is configured to keep a backlog).
- start a broadcast operation to set the LSMFB field on matching CPUs
which can't take the interrupt now because they're running at too
high a priority.
[npiggin: squash in fixes from milesg]
[milesg: only load the NVP if the END is !ignore]
[milesg: always broadcast backlog, not only when there are precluded VPs]
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/ppc/xive.h | 5 | ||||
| -rw-r--r-- | include/hw/ppc/xive2.h | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h index e78adaf..6a410c6 100644 --- a/include/hw/ppc/xive.h +++ b/include/hw/ppc/xive.h @@ -442,6 +442,9 @@ struct XivePresenterClass { uint32_t logic_serv, XiveTCTXMatch *match); bool (*in_kernel)(const XivePresenter *xptr); uint32_t (*get_config)(XivePresenter *xptr); + int (*broadcast)(XivePresenter *xptr, + uint8_t nvt_blk, uint32_t nvt_idx, + uint8_t priority); }; int xive_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx, @@ -472,6 +475,8 @@ struct XiveFabricClass { uint8_t nvt_blk, uint32_t nvt_idx, bool cam_ignore, uint8_t priority, uint32_t logic_serv, XiveTCTXMatch *match); + int (*broadcast)(XiveFabric *xfb, uint8_t nvt_blk, uint32_t nvt_idx, + uint8_t priority); }; /* diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h index 65154f7..ebf301b 100644 --- a/include/hw/ppc/xive2.h +++ b/include/hw/ppc/xive2.h @@ -120,6 +120,7 @@ uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, void xive2_tm_pull_os_ctx_ol(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset, uint64_t value, unsigned size); bool xive2_tm_irq_precluded(XiveTCTX *tctx, int ring, uint8_t priority); +void xive2_tm_set_lsmfb(XiveTCTX *tctx, int ring, uint8_t priority); 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, |