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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platform_pci.h (2094B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _XEN_PLATFORM_PCI_H
      3#define _XEN_PLATFORM_PCI_H
      4
      5#define XEN_IOPORT_MAGIC_VAL 0x49d2
      6#define XEN_IOPORT_LINUX_PRODNUM 0x0003
      7#define XEN_IOPORT_LINUX_DRVVER  0x0001
      8
      9#define XEN_IOPORT_BASE 0x10
     10
     11#define XEN_IOPORT_PLATFLAGS	(XEN_IOPORT_BASE + 0) /* 1 byte access (R/W) */
     12#define XEN_IOPORT_MAGIC	(XEN_IOPORT_BASE + 0) /* 2 byte access (R) */
     13#define XEN_IOPORT_UNPLUG	(XEN_IOPORT_BASE + 0) /* 2 byte access (W) */
     14#define XEN_IOPORT_DRVVER	(XEN_IOPORT_BASE + 0) /* 4 byte access (W) */
     15
     16#define XEN_IOPORT_SYSLOG	(XEN_IOPORT_BASE + 2) /* 1 byte access (W) */
     17#define XEN_IOPORT_PROTOVER	(XEN_IOPORT_BASE + 2) /* 1 byte access (R) */
     18#define XEN_IOPORT_PRODNUM	(XEN_IOPORT_BASE + 2) /* 2 byte access (W) */
     19
     20#define XEN_UNPLUG_ALL_IDE_DISKS	(1<<0)
     21#define XEN_UNPLUG_ALL_NICS		(1<<1)
     22#define XEN_UNPLUG_AUX_IDE_DISKS	(1<<2)
     23#define XEN_UNPLUG_ALL			(XEN_UNPLUG_ALL_IDE_DISKS|\
     24					 XEN_UNPLUG_ALL_NICS|\
     25					 XEN_UNPLUG_AUX_IDE_DISKS)
     26
     27#define XEN_UNPLUG_UNNECESSARY 		(1<<16)
     28#define XEN_UNPLUG_NEVER	 		(1<<17)
     29
     30static inline int xen_must_unplug_nics(void) {
     31#if (defined(CONFIG_XEN_NETDEV_FRONTEND) || \
     32		defined(CONFIG_XEN_NETDEV_FRONTEND_MODULE)) && \
     33		defined(CONFIG_XEN_PVHVM)
     34        return 1;
     35#else
     36        return 0;
     37#endif
     38}
     39
     40static inline int xen_must_unplug_disks(void) {
     41#if (defined(CONFIG_XEN_BLKDEV_FRONTEND) || \
     42		defined(CONFIG_XEN_BLKDEV_FRONTEND_MODULE)) && \
     43		defined(CONFIG_XEN_PVHVM)
     44        return 1;
     45#else
     46        return 0;
     47#endif
     48}
     49
     50#if defined(CONFIG_XEN_PVHVM)
     51extern bool xen_has_pv_devices(void);
     52extern bool xen_has_pv_disk_devices(void);
     53extern bool xen_has_pv_nic_devices(void);
     54extern bool xen_has_pv_and_legacy_disk_devices(void);
     55#else
     56static inline bool xen_has_pv_devices(void)
     57{
     58	return IS_ENABLED(CONFIG_XEN);
     59}
     60static inline bool xen_has_pv_disk_devices(void)
     61{
     62	return IS_ENABLED(CONFIG_XEN);
     63}
     64static inline bool xen_has_pv_nic_devices(void)
     65{
     66	return IS_ENABLED(CONFIG_XEN);
     67}
     68static inline bool xen_has_pv_and_legacy_disk_devices(void)
     69{
     70	return false;
     71}
     72#endif
     73#endif /* _XEN_PLATFORM_PCI_H */