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Differential D25672 Diff 108241 sys/amd64/vmm/intel/vtd.c

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sys/amd64/vmm/intel/vtd.c

Show First 20 Lines • Show All 430 Lines • ▼ Show 20 Linesvtd_disable(void)
struct vtdmap *vtdmap; struct vtdmap *vtdmap;
for (i = 0; i < drhd_num; i++) { for (i = 0; i < drhd_num; i++) {
vtdmap = vtdmaps[i]; vtdmap = vtdmaps[i];
vtd_translation_disable(vtdmap); vtd_translation_disable(vtdmap);
} }
} }
static void static int
vtd_add_device(void *arg, uint16_t rid) vtd_add_device(void *arg, device_t dev __unused, uint16_t rid)
{ {
int idx; int idx;
uint64_t *ctxp; uint64_t *ctxp;
struct domain *dom = arg; struct domain *dom = arg;
vm_paddr_t pt_paddr; vm_paddr_t pt_paddr;
struct vtdmap *vtdmap; struct vtdmap *vtdmap;
uint8_t bus; uint8_t bus;
Show All 24 Lines else
ctxp[idx] = 0; ctxp[idx] = 0;
ctxp[idx] |= pt_paddr | VTD_CTX_PRESENT; ctxp[idx] |= pt_paddr | VTD_CTX_PRESENT;
/* /*
* 'Not Present' entries are not cached in either the Context Cache * 'Not Present' entries are not cached in either the Context Cache
* or in the IOTLB, so there is no need to invalidate either of them. * or in the IOTLB, so there is no need to invalidate either of them.
*/ */
return (0);
} }
static void static int
vtd_remove_device(void *arg, uint16_t rid) vtd_remove_device(void *arg, device_t dev __unused, uint16_t rid)
{ {
int i, idx; int i, idx;
uint64_t *ctxp; uint64_t *ctxp;
struct vtdmap *vtdmap; struct vtdmap *vtdmap;
uint8_t bus; uint8_t bus;
bus = PCI_RID2BUS(rid); bus = PCI_RID2BUS(rid);
ctxp = ctx_tables[bus]; ctxp = ctx_tables[bus];
Show All 11 Linesvtd_remove_device(void *arg, device_t dev __unused, uint16_t rid)
* XXX use device-selective invalidation for Context Cache * XXX use device-selective invalidation for Context Cache
* XXX use domain-selective invalidation for IOTLB * XXX use domain-selective invalidation for IOTLB
*/ */
for (i = 0; i < drhd_num; i++) { for (i = 0; i < drhd_num; i++) {
vtdmap = vtdmaps[i]; vtdmap = vtdmaps[i];
vtd_ctx_global_invalidate(vtdmap); vtd_ctx_global_invalidate(vtdmap);
vtd_iotlb_global_invalidate(vtdmap); vtd_iotlb_global_invalidate(vtdmap);
} }
return (0);
} }
#define CREATE_MAPPING 0 #define CREATE_MAPPING 0
#define REMOVE_MAPPING 1 #define REMOVE_MAPPING 1
static uint64_t static uint64_t
vtd_update_mapping(void *arg, vm_paddr_t gpa, vm_paddr_t hpa, uint64_t len, vtd_update_mapping(void *arg, vm_paddr_t gpa, vm_paddr_t hpa, uint64_t len,
int remove) int remove)
▲ Show 20 Lines • Show All 78 Lines • ▼ Show 20 Lines if (remove) {
if (nlevels > 0) if (nlevels > 0)
ptp[ptpindex] |= VTD_PTE_SUPERPAGE; ptp[ptpindex] |= VTD_PTE_SUPERPAGE;
} }
return (1UL << ptpshift); return (1UL << ptpshift);
} }
static uint64_t static int
vtd_create_mapping(void *arg, vm_paddr_t gpa, vm_paddr_t hpa, uint64_t len) vtd_create_mapping(void *arg, vm_paddr_t gpa, vm_paddr_t hpa, uint64_t len,
uint64_t *res_len)
{ {
return (vtd_update_mapping(arg, gpa, hpa, len, CREATE_MAPPING)); *res_len = vtd_update_mapping(arg, gpa, hpa, len, CREATE_MAPPING);
return (0);
} }
static uint64_t static int
vtd_remove_mapping(void *arg, vm_paddr_t gpa, uint64_t len) vtd_remove_mapping(void *arg, vm_paddr_t gpa, uint64_t len, uint64_t *res_len)
{ {
return (vtd_update_mapping(arg, gpa, 0, len, REMOVE_MAPPING)); *res_len = vtd_update_mapping(arg, gpa, 0, len, REMOVE_MAPPING);
return (0);
} }
static void static int
vtd_invalidate_tlb(void *dom) vtd_invalidate_tlb(void *dom)
{ {
int i; int i;
struct vtdmap *vtdmap; struct vtdmap *vtdmap;
/* /*
* Invalidate the IOTLB. * Invalidate the IOTLB.
* XXX use domain-selective invalidation for IOTLB * XXX use domain-selective invalidation for IOTLB
*/ */
for (i = 0; i < drhd_num; i++) { for (i = 0; i < drhd_num; i++) {
vtdmap = vtdmaps[i]; vtdmap = vtdmaps[i];
vtd_iotlb_global_invalidate(vtdmap); vtd_iotlb_global_invalidate(vtdmap);
} }
return (0);
} }
static void * static void *
vtd_create_domain(vm_paddr_t maxaddr) vtd_create_domain(vm_paddr_t maxaddr, bool host_domain __unused)
{ {
struct domain *dom; struct domain *dom;
vm_paddr_t addr; vm_paddr_t addr;
int tmp, i, gaw, agaw, sagaw, res, pt_levels, addrwidth; int tmp, i, gaw, agaw, sagaw, res, pt_levels, addrwidth;
struct vtdmap *vtdmap; struct vtdmap *vtdmap;
if (drhd_num <= 0) if (drhd_num <= 0)
panic("vtd_create_domain: no dma remapping hardware available"); panic("vtd_create_domain: no dma remapping hardware available");
▲ Show 20 Lines • Show All 131 Lines • Show Last 20 Lines