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Differential D25743 Diff 74905 head/sys/x86/iommu/intel_dmar.h

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head/sys/x86/iommu/intel_dmar.h

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#ifndef __X86_IOMMU_INTEL_DMAR_H #ifndef __X86_IOMMU_INTEL_DMAR_H
#define __X86_IOMMU_INTEL_DMAR_H #define __X86_IOMMU_INTEL_DMAR_H
#include <dev/iommu/iommu.h> #include <dev/iommu/iommu.h>
struct dmar_unit; struct dmar_unit;
RB_HEAD(dmar_gas_entries_tree, iommu_map_entry);
RB_PROTOTYPE(dmar_gas_entries_tree, iommu_map_entry, rb_entry,
dmar_gas_cmp_entries);
/* /*
* Locking annotations: * Locking annotations:
* (u) - Protected by iommu unit lock * (u) - Protected by iommu unit lock
* (d) - Protected by domain lock * (d) - Protected by domain lock
* (c) - Immutable after initialization * (c) - Immutable after initialization
*/ */
/* /*
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struct dmar_domain { struct dmar_domain {
struct iommu_domain iodom; struct iommu_domain iodom;
int domain; /* (c) DID, written in context entry */ int domain; /* (c) DID, written in context entry */
int mgaw; /* (c) Real max address width */ int mgaw; /* (c) Real max address width */
int agaw; /* (c) Adjusted guest address width */ int agaw; /* (c) Adjusted guest address width */
int pglvl; /* (c) The pagelevel */ int pglvl; /* (c) The pagelevel */
int awlvl; /* (c) The pagelevel as the bitmask, int awlvl; /* (c) The pagelevel as the bitmask,
to set in context entry */ to set in context entry */
iommu_gaddr_t end; /* (c) Highest address + 1 in
the guest AS */
u_int ctx_cnt; /* (u) Number of contexts owned */ u_int ctx_cnt; /* (u) Number of contexts owned */
u_int refs; /* (u) Refs, including ctx */ u_int refs; /* (u) Refs, including ctx */
struct dmar_unit *dmar; /* (c) */ struct dmar_unit *dmar; /* (c) */
LIST_ENTRY(dmar_domain) link; /* (u) Member in the dmar list */ LIST_ENTRY(dmar_domain) link; /* (u) Member in the dmar list */
LIST_HEAD(, dmar_ctx) contexts; /* (u) */ LIST_HEAD(, dmar_ctx) contexts; /* (u) */
vm_object_t pgtbl_obj; /* (c) Page table pages */ vm_object_t pgtbl_obj; /* (c) Page table pages */
u_int flags; /* (u) */
struct dmar_gas_entries_tree rb_root; /* (d) */
struct iommu_map_entry *first_place, *last_place; /* (d) */
u_int batch_no; u_int batch_no;
}; };
struct dmar_ctx { struct dmar_ctx {
struct iommu_ctx context; struct iommu_ctx context;
uint16_t rid; /* (c) pci RID */ uint16_t rid; /* (c) pci RID */
uint64_t last_fault_rec[2]; /* Last fault reported */ uint64_t last_fault_rec[2]; /* Last fault reported */
LIST_ENTRY(dmar_ctx) link; /* (u) Member in the domain list */ LIST_ENTRY(dmar_ctx) link; /* (u) Member in the domain list */
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void dmar_qi_invalidate_ctx_glob_locked(struct dmar_unit *unit); void dmar_qi_invalidate_ctx_glob_locked(struct dmar_unit *unit);
void dmar_qi_invalidate_iotlb_glob_locked(struct dmar_unit *unit); void dmar_qi_invalidate_iotlb_glob_locked(struct dmar_unit *unit);
void dmar_qi_invalidate_iec_glob(struct dmar_unit *unit); void dmar_qi_invalidate_iec_glob(struct dmar_unit *unit);
void dmar_qi_invalidate_iec(struct dmar_unit *unit, u_int start, u_int cnt); void dmar_qi_invalidate_iec(struct dmar_unit *unit, u_int start, u_int cnt);
vm_object_t domain_get_idmap_pgtbl(struct dmar_domain *domain, vm_object_t domain_get_idmap_pgtbl(struct dmar_domain *domain,
iommu_gaddr_t maxaddr); iommu_gaddr_t maxaddr);
void put_idmap_pgtbl(vm_object_t obj); void put_idmap_pgtbl(vm_object_t obj);
int domain_map_buf(struct dmar_domain *domain, iommu_gaddr_t base, int domain_map_buf(struct iommu_domain *domain, iommu_gaddr_t base,
iommu_gaddr_t size, vm_page_t *ma, uint64_t pflags, int flags); iommu_gaddr_t size, vm_page_t *ma, uint64_t pflags, int flags);
int domain_unmap_buf(struct dmar_domain *domain, iommu_gaddr_t base, int domain_unmap_buf(struct dmar_domain *domain, iommu_gaddr_t base,
iommu_gaddr_t size, int flags); iommu_gaddr_t size, int flags);
void domain_flush_iotlb_sync(struct dmar_domain *domain, iommu_gaddr_t base, void domain_flush_iotlb_sync(struct dmar_domain *domain, iommu_gaddr_t base,
iommu_gaddr_t size); iommu_gaddr_t size);
int domain_alloc_pgtbl(struct dmar_domain *domain); int domain_alloc_pgtbl(struct dmar_domain *domain);
void domain_free_pgtbl(struct dmar_domain *domain); void domain_free_pgtbl(struct dmar_domain *domain);
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void dmar_free_ctx_locked(struct dmar_unit *dmar, struct dmar_ctx *ctx); void dmar_free_ctx_locked(struct dmar_unit *dmar, struct dmar_ctx *ctx);
void dmar_free_ctx(struct dmar_ctx *ctx); void dmar_free_ctx(struct dmar_ctx *ctx);
struct dmar_ctx *dmar_find_ctx_locked(struct dmar_unit *dmar, uint16_t rid); struct dmar_ctx *dmar_find_ctx_locked(struct dmar_unit *dmar, uint16_t rid);
void dmar_domain_unload_entry(struct iommu_map_entry *entry, bool free); void dmar_domain_unload_entry(struct iommu_map_entry *entry, bool free);
void dmar_domain_unload(struct dmar_domain *domain, void dmar_domain_unload(struct dmar_domain *domain,
struct iommu_map_entries_tailq *entries, bool cansleep); struct iommu_map_entries_tailq *entries, bool cansleep);
void dmar_domain_free_entry(struct iommu_map_entry *entry, bool free); void dmar_domain_free_entry(struct iommu_map_entry *entry, bool free);
void dmar_gas_init_domain(struct dmar_domain *domain); void iommu_gas_init_domain(struct iommu_domain *domain);
void dmar_gas_fini_domain(struct dmar_domain *domain); void iommu_gas_fini_domain(struct iommu_domain *domain);
struct iommu_map_entry *dmar_gas_alloc_entry(struct dmar_domain *domain, struct iommu_map_entry *iommu_gas_alloc_entry(struct iommu_domain *domain,
u_int flags); u_int flags);
void dmar_gas_free_entry(struct dmar_domain *domain, void iommu_gas_free_entry(struct iommu_domain *domain,
struct iommu_map_entry *entry); struct iommu_map_entry *entry);
void dmar_gas_free_space(struct dmar_domain *domain, void iommu_gas_free_space(struct iommu_domain *domain,
struct iommu_map_entry *entry); struct iommu_map_entry *entry);
int dmar_gas_map(struct dmar_domain *domain, int iommu_gas_map(struct iommu_domain *domain,
const struct bus_dma_tag_common *common, iommu_gaddr_t size, int offset, const struct bus_dma_tag_common *common, iommu_gaddr_t size, int offset,
u_int eflags, u_int flags, vm_page_t *ma, struct iommu_map_entry **res); u_int eflags, u_int flags, vm_page_t *ma, struct iommu_map_entry **res);
void dmar_gas_free_region(struct dmar_domain *domain, void iommu_gas_free_region(struct iommu_domain *domain,
struct iommu_map_entry *entry); struct iommu_map_entry *entry);
int dmar_gas_map_region(struct dmar_domain *domain, int iommu_gas_map_region(struct iommu_domain *domain,
struct iommu_map_entry *entry, u_int eflags, u_int flags, vm_page_t *ma); struct iommu_map_entry *entry, u_int eflags, u_int flags, vm_page_t *ma);
int dmar_gas_reserve_region(struct dmar_domain *domain, iommu_gaddr_t start, int iommu_gas_reserve_region(struct iommu_domain *domain, iommu_gaddr_t start,
iommu_gaddr_t end); iommu_gaddr_t end);
void dmar_dev_parse_rmrr(struct dmar_domain *domain, int dev_domain, void dmar_dev_parse_rmrr(struct dmar_domain *domain, int dev_domain,
int dev_busno, const void *dev_path, int dev_path_len, int dev_busno, const void *dev_path, int dev_path_len,
struct iommu_map_entries_tailq *rmrr_entries); struct iommu_map_entries_tailq *rmrr_entries);
int dmar_instantiate_rmrr_ctxs(struct iommu_unit *dmar); int dmar_instantiate_rmrr_ctxs(struct iommu_unit *dmar);
void dmar_quirks_post_ident(struct dmar_unit *dmar); void dmar_quirks_post_ident(struct dmar_unit *dmar);
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#define DMAR_PGF_ALLOC 0x0004 #define DMAR_PGF_ALLOC 0x0004
#define DMAR_PGF_NOALLOC 0x0008 #define DMAR_PGF_NOALLOC 0x0008
#define DMAR_PGF_OBJL 0x0010 #define DMAR_PGF_OBJL 0x0010
extern iommu_haddr_t dmar_high; extern iommu_haddr_t dmar_high;
extern int haw; extern int haw;
extern int dmar_tbl_pagecnt; extern int dmar_tbl_pagecnt;
extern int dmar_batch_coalesce; extern int dmar_batch_coalesce;
extern int dmar_check_free; extern int iommu_check_free;
static inline uint32_t static inline uint32_t
dmar_read4(const struct dmar_unit *unit, int reg) dmar_read4(const struct dmar_unit *unit, int reg)
{ {
return (bus_read_4(unit->regs, reg)); return (bus_read_4(unit->regs, reg));
} }
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