From 14e12559919195d817d94bc5590a8a26c70e2298 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Sun, 21 Jun 2009 19:45:30 +0300 Subject: [PATCH] qemu/pci: helper routines for pci access Add inline routines for convenient access to pci devices with correct (little) endianness. Will be used by MSI-X support. Signed-off-by: Michael S. Tsirkin Signed-off-by: Anthony Liguori --- hw/pci.h | 30 +++++++++++++++++++++++++++--- 1 file changed, 27 insertions(+), 3 deletions(-) diff --git a/hw/pci.h b/hw/pci.h index c5ecea5f93..75c9268448 100644 --- a/hw/pci.h +++ b/hw/pci.h @@ -215,21 +215,45 @@ PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint16_t vid, uint16_t did, pci_map_irq_fn map_irq, const char *name); static inline void +pci_set_word(uint8_t *config, uint16_t val) +{ + cpu_to_le16wu((uint16_t *)config, val); +} + +static inline uint16_t +pci_get_word(uint8_t *config) +{ + return le16_to_cpupu((uint16_t *)config); +} + +static inline void +pci_set_long(uint8_t *config, uint32_t val) +{ + cpu_to_le32wu((uint32_t *)config, val); +} + +static inline uint32_t +pci_get_long(uint8_t *config) +{ + return le32_to_cpupu((uint32_t *)config); +} + +static inline void pci_config_set_vendor_id(uint8_t *pci_config, uint16_t val) { - cpu_to_le16wu((uint16_t *)&pci_config[PCI_VENDOR_ID], val); + pci_set_word(&pci_config[PCI_VENDOR_ID], val); } static inline void pci_config_set_device_id(uint8_t *pci_config, uint16_t val) { - cpu_to_le16wu((uint16_t *)&pci_config[PCI_DEVICE_ID], val); + pci_set_word(&pci_config[PCI_DEVICE_ID], val); } static inline void pci_config_set_class(uint8_t *pci_config, uint16_t val) { - cpu_to_le16wu((uint16_t *)&pci_config[PCI_CLASS_DEVICE], val); + pci_set_word(&pci_config[PCI_CLASS_DEVICE], val); } typedef void (*pci_qdev_initfn)(PCIDevice *dev); -- 2.11.4.GIT