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sysbus: Don't use hw_error() in machine_init_done_notifiers

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platform_bus_map_irq() and platform_bus_map_mmio() use hw_error() to
fail.  They run in machine_init_done_notifiers, via
platform_bus_init_notify() and link_sysbus_device().  Printing CPU
registers is not helpful there.

Replace hw_error() by error_report(); exit(1).  If these are
programming errors, it should be replaced by an assertion instead.

While there, observe that both functions always return 0, and
link_sysbus_device() ignores the return value.  Change them to void.

Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1450370121-5768-9-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2015-12-17 17:35:16 +01:00
parent 7b55044f9d
commit c72fbf98cb
1 changed files with 12 additions and 13 deletions
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25
hw/core/platform-bus.c
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@ -21,6 +21,7 @@
#include "hw/platform-bus.h"
#include "exec/address-spaces.h"
#include "qemu/error-report.h"
#include "sysemu/sysemu.h"
@ -106,31 +107,29 @@ static void plaform_bus_refresh_irqs(PlatformBusDevice *pbus)
pbus->done_gathering = true;
}
static int platform_bus_map_irq(PlatformBusDevice *pbus, SysBusDevice *sbdev,
int n)
static void platform_bus_map_irq(PlatformBusDevice *pbus, SysBusDevice *sbdev,
int n)
{
int max_irqs = pbus->num_irqs;
int irqn;
if (sysbus_is_irq_connected(sbdev, n)) {
/* IRQ is already mapped, nothing to do */
return 0;
return;
}
irqn = find_first_zero_bit(pbus->used_irqs, max_irqs);
if (irqn >= max_irqs) {
hw_error("Platform Bus: Can not fit IRQ line");
return -1;
error_report("Platform Bus: Can not fit IRQ line");
exit(1);
}
set_bit(irqn, pbus->used_irqs);
sysbus_connect_irq(sbdev, n, pbus->irqs[irqn]);
return 0;
}
static int platform_bus_map_mmio(PlatformBusDevice *pbus, SysBusDevice *sbdev,
int n)
static void platform_bus_map_mmio(PlatformBusDevice *pbus, SysBusDevice *sbdev,
int n)
{
MemoryRegion *sbdev_mr = sysbus_mmio_get_region(sbdev, n);
uint64_t size = memory_region_size(sbdev_mr);
@ -140,7 +139,7 @@ static int platform_bus_map_mmio(PlatformBusDevice *pbus, SysBusDevice *sbdev,
if (memory_region_is_mapped(sbdev_mr)) {
/* Region is already mapped, nothing to do */
return 0;
return;
}
/*
@ -155,13 +154,13 @@ static int platform_bus_map_mmio(PlatformBusDevice *pbus, SysBusDevice *sbdev,
}
if (!found_region) {
hw_error("Platform Bus: Can not fit MMIO region of size %"PRIx64, size);
error_report("Platform Bus: Can not fit MMIO region of size %"PRIx64,
size);
exit(1);
}
/* Map the device's region into our Platform Bus MMIO space */
memory_region_add_subregion(&pbus->mmio, off, sbdev_mr);
return 0;
}
/*