cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pci.h (1814B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _ASM_X86_XEN_PCI_H
      3#define _ASM_X86_XEN_PCI_H
      4
      5#if defined(CONFIG_PCI_XEN)
      6extern int __init pci_xen_init(void);
      7extern int __init pci_xen_hvm_init(void);
      8#define pci_xen 1
      9#else
     10#define pci_xen 0
     11#define pci_xen_init (0)
     12static inline int pci_xen_hvm_init(void)
     13{
     14	return -1;
     15}
     16#endif
     17#ifdef CONFIG_XEN_PV_DOM0
     18int __init pci_xen_initial_domain(void);
     19#else
     20static inline int __init pci_xen_initial_domain(void)
     21{
     22	return -1;
     23}
     24#endif
     25
     26#if defined(CONFIG_PCI_MSI)
     27#if defined(CONFIG_PCI_XEN)
     28/* The drivers/pci/xen-pcifront.c sets this structure to
     29 * its own functions.
     30 */
     31struct xen_pci_frontend_ops {
     32	int (*enable_msi)(struct pci_dev *dev, int vectors[]);
     33	void (*disable_msi)(struct pci_dev *dev);
     34	int (*enable_msix)(struct pci_dev *dev, int vectors[], int nvec);
     35	void (*disable_msix)(struct pci_dev *dev);
     36};
     37
     38extern struct xen_pci_frontend_ops *xen_pci_frontend;
     39
     40static inline int xen_pci_frontend_enable_msi(struct pci_dev *dev,
     41					      int vectors[])
     42{
     43	if (xen_pci_frontend && xen_pci_frontend->enable_msi)
     44		return xen_pci_frontend->enable_msi(dev, vectors);
     45	return -ENOSYS;
     46}
     47static inline void xen_pci_frontend_disable_msi(struct pci_dev *dev)
     48{
     49	if (xen_pci_frontend && xen_pci_frontend->disable_msi)
     50			xen_pci_frontend->disable_msi(dev);
     51}
     52static inline int xen_pci_frontend_enable_msix(struct pci_dev *dev,
     53					       int vectors[], int nvec)
     54{
     55	if (xen_pci_frontend && xen_pci_frontend->enable_msix)
     56		return xen_pci_frontend->enable_msix(dev, vectors, nvec);
     57	return -ENOSYS;
     58}
     59static inline void xen_pci_frontend_disable_msix(struct pci_dev *dev)
     60{
     61	if (xen_pci_frontend && xen_pci_frontend->disable_msix)
     62			xen_pci_frontend->disable_msix(dev);
     63}
     64#endif /* CONFIG_PCI_XEN */
     65#endif /* CONFIG_PCI_MSI */
     66
     67#endif	/* _ASM_X86_XEN_PCI_H */