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[Qemu-ppc] [PATCH 12/34] pseries: Use new method to correct reset sequen
From: |
Alexander Graf |
Subject: |
[Qemu-ppc] [PATCH 12/34] pseries: Use new method to correct reset sequence |
Date: |
Thu, 4 Oct 2012 15:56:34 +0200 |
From: David Gibson <address@hidden>
A number of things need to occur during reset of the PAPR
paravirtualized platform in a specific order. For example, the hash
table needs to be cleared before the CPUs are reset, so that they
initialize their register state correctly, and the CPUs need to have
their main reset called before we set up the entry point state on the
boot cpu. We also need to have the main qdev reset happen before the
creation and installation of the device tree for the new boot, because
we need the state of the devices settled to correctly construct the
device tree.
We currently do the pseries once-per-reset initializations done from a
reset handler. However we can't adequately control when this handler
is called during the reset - in particular we can't guarantee it
happens after all the qdev resets (since qdevs might be registered
after the machine init function has executed).
This patch uses the new QEMUMachine reset method to to fix this
problem, ensuring the various order dependent reset steps happen in
the correct order.
Signed-off-by: David Gibson <address@hidden>
Reviewed-by: Andreas Färber <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>
---
hw/spapr.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/hw/spapr.c b/hw/spapr.c
index d88525a..68542e8 100644
--- a/hw/spapr.c
+++ b/hw/spapr.c
@@ -559,13 +559,13 @@ static void emulate_spapr_hypercall(CPUPPCState *env)
env->gpr[3] = spapr_hypercall(env, env->gpr[3], &env->gpr[4]);
}
-static void spapr_reset(void *opaque)
+static void ppc_spapr_reset(void)
{
- sPAPREnvironment *spapr = (sPAPREnvironment *)opaque;
-
/* flush out the hash table */
memset(spapr->htab, 0, spapr->htab_size);
+ qemu_devices_reset();
+
/* Load the fdt */
spapr_finalize_fdt(spapr, spapr->fdt_addr, spapr->rtas_addr,
spapr->rtas_size);
@@ -845,14 +845,13 @@ static void ppc_spapr_init(ram_addr_t ram_size,
boot_device, kernel_cmdline,
pteg_shift + 7);
assert(spapr->fdt_skel != NULL);
-
- qemu_register_reset(spapr_reset, spapr);
}
static QEMUMachine spapr_machine = {
.name = "pseries",
.desc = "pSeries Logical Partition (PAPR compliant)",
.init = ppc_spapr_init,
+ .reset = ppc_spapr_reset,
.max_cpus = MAX_CPUS,
.no_parallel = 1,
.use_scsi = 1,
--
1.6.0.2
- [Qemu-ppc] [PATCH 24/34] ppc405_uc: Fix buffer overflow, (continued)
- [Qemu-ppc] [PATCH 24/34] ppc405_uc: Fix buffer overflow, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 16/34] pseries: Fix XICS reset, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 11/34] pseries: Fix and cleanup CPU initialization and reset, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 31/34] PPC: e500: increase DTC_LOAD_PAD, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 19/34] pseries: Remove XICS irq type enum type, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 15/34] pseries: Reset emulated PCI TCE tables on system reset, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 09/34] target-ppc: get rid of the HANDLE_NAN{1, 2, 3} macros, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 22/34] pseries: Fix semantics of RTAS int-on, int-off and set-xive functions, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 23/34] target-ppc: KVM: Fix some kernel version edge cases for kvmppc_reset_htab(), Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 13/34] pseries: Add support for new KVM hash table control call, Alexander Graf, 2012/10/04
- [Qemu-ppc] [PATCH 12/34] pseries: Use new method to correct reset sequence,
Alexander Graf <=
- Re: [Qemu-ppc] [Qemu-devel] [PULL 00/34] ppc patch queue 2012-10-04, Aurelien Jarno, 2012/10/06