Reviewed-by: Glenn Miles <mil...@linux.ibm.com>
On Mon, 2025-05-12 at 13:10 +1000, Nicholas Piggin wrote:
> Implement the phys (aka hard) VP push. PowerVM uses this operation.
>
> Signed-off-by: Nicholas Piggin <npig...@gmail.com>
> ---
> hw/intc/xive.c | 2 ++
> hw/intc/xive2.c | 11 +++++++++++
> include/hw/ppc/xive2.h | 2 ++
> 3 files changed, 15 insertions(+)
>
> diff --git a/hw/intc/xive.c b/hw/intc/xive.c
> index 807a1c1c34..69118999e6 100644
> --- a/hw/intc/xive.c
> +++ b/hw/intc/xive.c
> @@ -747,6 +747,8 @@ static const XiveTmOp xive2_tm_operations[] = {
> xive_tm_set_pool_lgs, NULL },
> { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_CPPR, 1, true, true,
> xive2_tm_set_hv_cppr, NULL },
> + { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_WORD2, 1, false, true,
> + xive2_tm_push_phys_ctx, NULL },
> { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_WORD2, 1, true, true,
> NULL, xive_tm_vt_poll },
> { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_T, 1, true, true,
> diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
> index de1ccad685..a9b188b909 100644
> --- a/hw/intc/xive2.c
> +++ b/hw/intc/xive2.c
> @@ -1005,6 +1005,11 @@ static void xive2_tm_push_ctx(XivePresenter *xptr,
> XiveTCTX *tctx,
>
> /* First update the thead context */
> switch (size) {
> + case 1:
> + tctx->regs[ring + TM_WORD2] = value & 0xff;
> + cam = xive2_tctx_hw_cam_line(xptr, tctx);
> + cam |= ((value & 0xc0) << 24); /* V and H bits */
> + break;
> case 4:
> cam = value;
> w2 = cpu_to_be32(cam);
> @@ -1040,6 +1045,12 @@ void xive2_tm_push_pool_ctx(XivePresenter *xptr,
> XiveTCTX *tctx,
> xive2_tm_push_ctx(xptr, tctx, offset, value, size, TM_QW2_HV_POOL);
> }
>
> +void xive2_tm_push_phys_ctx(XivePresenter *xptr, XiveTCTX *tctx,
> + hwaddr offset, uint64_t value, unsigned size)
> +{
> + xive2_tm_push_ctx(xptr, tctx, offset, value, size, TM_QW3_HV_PHYS);
> +}
> +
> /* returns -1 if ring is invalid, but still populates block and index */
> static int xive2_tctx_get_nvp_indexes(XiveTCTX *tctx, uint8_t ring,
> uint8_t *nvp_blk, uint32_t *nvp_idx)
> diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
> index 45266c2a8b..f4437e2c79 100644
> --- a/include/hw/ppc/xive2.h
> +++ b/include/hw/ppc/xive2.h
> @@ -146,6 +146,8 @@ void xive2_tm_push_pool_ctx(XivePresenter *xptr, XiveTCTX
> *tctx,
> hwaddr offset, uint64_t value, unsigned size);
> uint64_t xive2_tm_pull_pool_ctx(XivePresenter *xptr, XiveTCTX *tctx,
> hwaddr offset, unsigned size);
> +void xive2_tm_push_phys_ctx(XivePresenter *xptr, XiveTCTX *tctx,
> + hwaddr offset, uint64_t value, unsigned size);
> uint64_t xive2_tm_pull_phys_ctx(XivePresenter *xptr, XiveTCTX *tctx,
> hwaddr offset, unsigned size);
> void xive2_tm_pull_phys_ctx_ol(XivePresenter *xptr, XiveTCTX *tctx,
