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[Qemu-devel] [PATCH 3/8] pseries: savevm support for XICS interrupt cont
From: |
David Gibson |
Subject: |
[Qemu-devel] [PATCH 3/8] pseries: savevm support for XICS interrupt controller |
Date: |
Fri, 3 May 2013 11:38:07 +1000 |
This patch adds the necessary VMStateDescription information to support
savevm/loadvm for the XICS interrupt controller used on the pseries
machine.
Signed-off-by: David Gibson <address@hidden>
---
hw/ppc/xics.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 53 insertions(+), 4 deletions(-)
diff --git a/hw/ppc/xics.c b/hw/ppc/xics.c
index 1b25075..2f6ca54 100644
--- a/hw/ppc/xics.c
+++ b/hw/ppc/xics.c
@@ -50,7 +50,7 @@ struct icp_server_state {
struct ics_state;
struct icp_state {
- long nr_servers;
+ uint32_t nr_servers;
struct icp_server_state *ss;
struct ics_state *ics;
};
@@ -173,7 +173,7 @@ static void icp_irq(struct icp_state *icp, int server, int
nr, uint8_t priority)
*/
struct ics_irq_state {
- int server;
+ uint32_t server;
uint8_t priority;
uint8_t saved_priority;
#define XICS_STATUS_ASSERTED 0x1
@@ -184,8 +184,8 @@ struct ics_irq_state {
};
struct ics_state {
- int nr_irqs;
- int offset;
+ uint32_t nr_irqs;
+ uint32_t offset;
qemu_irq *qirqs;
bool *islsi;
struct ics_irq_state *irqs;
@@ -523,6 +523,48 @@ static void xics_reset(void *opaque)
}
}
+static const VMStateDescription vmstate_icp_server = {
+ .name = "icp/server",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField []) {
+ /* Sanity check */
+ VMSTATE_UINT32(xirr, struct icp_server_state),
+ VMSTATE_UINT8(pending_priority, struct icp_server_state),
+ VMSTATE_UINT8(mfrr, struct icp_server_state),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static const VMStateDescription vmstate_ics_irq = {
+ .name = "ics/irq",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField []) {
+ VMSTATE_UINT32(server, struct ics_irq_state),
+ VMSTATE_UINT8(priority, struct ics_irq_state),
+ VMSTATE_UINT8(saved_priority, struct ics_irq_state),
+ VMSTATE_UINT8(status, struct ics_irq_state),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static const VMStateDescription vmstate_ics = {
+ .name = "ics",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField []) {
+ /* Sanity check */
+ VMSTATE_UINT32_EQUAL(nr_irqs, struct ics_state),
+
+ VMSTATE_STRUCT_VARRAY_POINTER_UINT32(irqs, struct ics_state, nr_irqs,
vmstate_ics_irq, struct ics_irq_state),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
void xics_cpu_setup(struct icp_state *icp, PowerPCCPU *cpu)
{
CPUState *cs = CPU(cpu);
@@ -545,6 +587,8 @@ void xics_cpu_setup(struct icp_state *icp, PowerPCCPU *cpu)
"bus model\n");
abort();
}
+
+ vmstate_register(NULL, cs->cpu_index, &vmstate_icp_server, ss);
}
struct icp_state *xics_system_init(int nr_servers, int nr_irqs)
@@ -579,5 +623,10 @@ struct icp_state *xics_system_init(int nr_servers, int
nr_irqs)
qemu_register_reset(xics_reset, icp);
+ /* We use each the ICS's offset into the global irq number space
+ * as an instance id. This means we can extend to multiple ICS
+ * instances without needing to change the savevm format */
+ vmstate_register(NULL, ics->offset, &vmstate_ics, ics);
+
return icp;
}
--
1.7.10.4
- [Qemu-devel] [0/8] pseries: savevm / migration support, David Gibson, 2013/05/02
- [Qemu-devel] [PATCH 4/8] pseries: savevm support for VIO devices, David Gibson, 2013/05/02
- [Qemu-devel] [PATCH 1/8] savevm: Implement VMS_DIVIDE flag, David Gibson, 2013/05/02
- [Qemu-devel] [PATCH 8/8] pseries: savevm support for pseries machine, David Gibson, 2013/05/02
- [Qemu-devel] [PATCH 6/8] pseries: savevm support for PAPR TCE tables, David Gibson, 2013/05/02
- [Qemu-devel] [PATCH 5/8] pseries: savevm support for PAPR VIO logical lan, David Gibson, 2013/05/02
- [Qemu-devel] [PATCH 3/8] pseries: savevm support for XICS interrupt controller,
David Gibson <=
- [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, David Gibson, 2013/05/02
- Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, Paolo Bonzini, 2013/05/06
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, David Gibson, 2013/05/06
- Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, Alexey Kardashevskiy, 2013/05/27
- Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, Paolo Bonzini, 2013/05/27
- Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, Alexey Kardashevskiy, 2013/05/31
- Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, Paolo Bonzini, 2013/05/31
- Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, Alexey Kardashevskiy, 2013/05/31
- Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, Paolo Bonzini, 2013/05/31
- Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI, Alexey Kardashevskiy, 2013/05/31