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| author | Pavel Fedin <p.fedin@samsung.com> | 2015-10-15 16:44:51 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-10-19 10:13:07 +0200 |
| commit | a05f686ff39c373384772b01f1b7fc71e7eb2500 (patch) | |
| tree | d95a1a3d9a194a82269d13436ed209d797339815 /include | |
| parent | 50bf31b9379cf88c4fe92ec477fdc56f89d1af94 (diff) | |
| download | qemu-a05f686ff39c373384772b01f1b7fc71e7eb2500.zip qemu-a05f686ff39c373384772b01f1b7fc71e7eb2500.tar.gz qemu-a05f686ff39c373384772b01f1b7fc71e7eb2500.tar.bz2 | |
hw/pci: Introduce pci_requester_id()
For GICv3 ITS implementation we are going to use requester IDs in KVM IRQ
routing code. This patch introduces reusable convenient way to obtain this
ID from the device pointer. The new function is now used in some places,
where the same calculation was used.
MemTxAttrs.stream_id also renamed to requester_id in order to better
reflect semantics of the field.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <5814bcb03a297f198e796b13ed9c35059c52f89b.1444916432.git.p.fedin@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/exec/memattrs.h | 4 | ||||
| -rw-r--r-- | include/hw/pci/pci.h | 5 |
2 files changed, 7 insertions, 2 deletions
diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h index f8537a8..e601061 100644 --- a/include/exec/memattrs.h +++ b/include/exec/memattrs.h @@ -35,8 +35,8 @@ typedef struct MemTxAttrs { unsigned int secure:1; /* Memory access is usermode (unprivileged) */ unsigned int user:1; - /* Stream ID (for MSI for example) */ - unsigned int stream_id:16; + /* Requester ID (for MSI for example) */ + unsigned int requester_id:16; } MemTxAttrs; /* Bus masters which don't specify any attributes will get this, diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 551cb3d..f5e7fd8 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -677,6 +677,11 @@ static inline uint32_t pci_config_size(const PCIDevice *d) return pci_is_express(d) ? PCIE_CONFIG_SPACE_SIZE : PCI_CONFIG_SPACE_SIZE; } +static inline uint16_t pci_requester_id(PCIDevice *dev) +{ + return (pci_bus_num(dev->bus) << 8) | dev->devfn; +} + /* DMA access functions */ static inline AddressSpace *pci_get_address_space(PCIDevice *dev) { |