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| author | Cédric Le Goater <clg@kaod.org> | 2019-05-13 10:42:37 +0200 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-05-29 11:39:46 +1000 |
| commit | 277dd3d7712ae056d2614ea164f6560afd5d71d4 (patch) | |
| tree | 563f1a3821fe2de8bc0d0edc38f20474e41c9472 /include | |
| parent | 9b88cd7673dddf9336f50540e5735eb6f190200a (diff) | |
| download | qemu-277dd3d7712ae056d2614ea164f6560afd5d71d4.zip qemu-277dd3d7712ae056d2614ea164f6560afd5d71d4.tar.gz qemu-277dd3d7712ae056d2614ea164f6560afd5d71d4.tar.bz2 | |
spapr/xive: add migration support for KVM
When the VM is stopped, the VM state handler stabilizes the XIVE IC
and marks the EQ pages dirty. These are then transferred to destination
before the transfer of the device vmstates starts.
The SpaprXive interrupt controller model captures the XIVE internal
tables, EAT and ENDT and the XiveTCTX model does the same for the
thread interrupt context registers.
At restart, the SpaprXive 'post_load' method restores all the XIVE
states. It is called by the sPAPR machine 'post_load' method, when all
XIVE states have been transferred and loaded.
Finally, the source states are restored in the VM change state handler
when the machine reaches the running state.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20190513084245.25755-7-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/ppc/spapr_xive.h | 3 | ||||
| -rw-r--r-- | include/hw/ppc/xive.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h index 734662c..04294b0 100644 --- a/include/hw/ppc/spapr_xive.h +++ b/include/hw/ppc/spapr_xive.h @@ -55,6 +55,7 @@ typedef struct SpaprXive { bool spapr_xive_irq_claim(SpaprXive *xive, uint32_t lisn, bool lsi); bool spapr_xive_irq_free(SpaprXive *xive, uint32_t lisn); void spapr_xive_pic_print_info(SpaprXive *xive, Monitor *mon); +int spapr_xive_post_load(SpaprXive *xive, int version_id); void spapr_xive_hcall_init(SpaprMachineState *spapr); void spapr_dt_xive(SpaprMachineState *spapr, uint32_t nr_servers, void *fdt, @@ -83,5 +84,7 @@ void kvmppc_xive_get_queue_config(SpaprXive *xive, uint8_t end_blk, uint32_t end_idx, XiveEND *end, Error **errp); void kvmppc_xive_synchronize_state(SpaprXive *xive, Error **errp); +int kvmppc_xive_pre_save(SpaprXive *xive); +int kvmppc_xive_post_load(SpaprXive *xive, int version_id); #endif /* PPC_SPAPR_XIVE_H */ diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h index 78c919c..edb8937 100644 --- a/include/hw/ppc/xive.h +++ b/include/hw/ppc/xive.h @@ -436,5 +436,6 @@ void kvmppc_xive_source_reset(XiveSource *xsrc, Error **errp); void kvmppc_xive_source_set_irq(void *opaque, int srcno, int val); void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp); void kvmppc_xive_cpu_synchronize_state(XiveTCTX *tctx, Error **errp); +void kvmppc_xive_cpu_get_state(XiveTCTX *tctx, Error **errp); #endif /* PPC_XIVE_H */ |