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msix: trace control bit write op 

Meanwhile, abstract a function to detect msix masked bit.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1494309644-18743-3-git-send-email-peterx@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peter Xu 2017-05-09 14:00:43 +08:00 committed by Paolo Bonzini
parent 9ba35d0b86
commit 993b1f4b2c
2 changed files with 12 additions and 2 deletions
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11
hw/pci/msix.c
View File

@ -22,6 +22,7 @@
#include "hw/xen/xen.h"
#include "qemu/range.h"
#include "qapi/error.h"
#include "trace.h"
#define MSIX_CAP_LENGTH 12
@ -130,10 +131,14 @@ static void msix_handle_mask_update(PCIDevice *dev, int vector, bool was_masked)
}
}
static bool msix_masked(PCIDevice *dev)
{
return dev->config[dev->msix_cap + MSIX_CONTROL_OFFSET] & MSIX_MASKALL_MASK;
}
static void msix_update_function_masked(PCIDevice *dev)
{
dev->msix_function_masked = !msix_enabled(dev) ||
(dev->config[dev->msix_cap + MSIX_CONTROL_OFFSET] & MSIX_MASKALL_MASK);
dev->msix_function_masked = !msix_enabled(dev) || msix_masked(dev);
}
/* Handle MSI-X capability config write. */
@ -148,6 +153,8 @@ void msix_write_config(PCIDevice *dev, uint32_t addr,
return;
}
trace_msix_write_config(dev->name, msix_enabled(dev), msix_masked(dev));
was_masked = dev->msix_function_masked;
msix_update_function_masked(dev);

3
hw/pci/trace-events
View File

@ -7,3 +7,6 @@ pci_update_mappings_add(void *d, uint32_t bus, uint32_t slot, uint32_t func, int
# hw/pci/pci_host.c
pci_cfg_read(const char *dev, unsigned devid, unsigned fnid, unsigned offs, unsigned val) "%s %02u:%u @0x%x -> 0x%x"
pci_cfg_write(const char *dev, unsigned devid, unsigned fnid, unsigned offs, unsigned val) "%s %02u:%u @0x%x <- 0x%x"
# hw/pci/msix.c
msix_write_config(char *name, bool enabled, bool masked) "dev %s enabled %d masked %d"