mirror of
https://github.com/Motorhead1991/qemu.git
synced 2026-01-06 06:27:41 -07:00
53d7d7e2b1
Add support for H_SCM_HEALTH hcall described at [1] for spapr
nvdimms. This enables guest to detect the 'unarmed' status of a
specific spapr nvdimm identified by its DRC and if its unarmed, mark
the region backed by the nvdimm as read-only.
The patch adds h_scm_health() to handle the H_SCM_HEALTH hcall which
returns two 64-bit bitmaps (health bitmap, health bitmap mask) derived
from 'struct nvdimm->unarmed' member.
Linux kernel side changes to enable handling of 'unarmed' nvdimms for
ppc64 are proposed at [2].
References:
[1] "Hypercall Op-codes (hcalls)"
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/powerpc/papr_hcalls.rst#n220
[2] "powerpc/papr_scm: Mark nvdimm as unarmed if needed during probe"
https://lore.kernel.org/linux-nvdimm/20210329113103.476760-1-vaibhav@linux.ibm.com/
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Message-Id: <20210402102128.213943-1-vaibhav@linux.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
|
||
|---|---|---|
| .. | ||
| fdt.h | ||
| mac_dbdma.h | ||
| openpic.h | ||
| openpic_kvm.h | ||
| pef.h | ||
| pnv.h | ||
| pnv_core.h | ||
| pnv_homer.h | ||
| pnv_lpc.h | ||
| pnv_occ.h | ||
| pnv_pnor.h | ||
| pnv_psi.h | ||
| pnv_xive.h | ||
| pnv_xscom.h | ||
| ppc.h | ||
| ppc4xx.h | ||
| ppc_e500.h | ||
| spapr.h | ||
| spapr_cpu_core.h | ||
| spapr_drc.h | ||
| spapr_irq.h | ||
| spapr_numa.h | ||
| spapr_nvdimm.h | ||
| spapr_ovec.h | ||
| spapr_rtas.h | ||
| spapr_tpm_proxy.h | ||
| spapr_vio.h | ||
| spapr_xive.h | ||
| xics.h | ||
| xics_spapr.h | ||
| xive.h | ||
| xive_regs.h | ||