Page MenuHomeFreeBSD
Files F153825132

D45342.id156886.diff
No OneTemporary
Actions

D45342.id156886.diff
View Options

diff --git a/usr.sbin/bhyve/amd64/pci_gvt-d.c b/usr.sbin/bhyve/amd64/pci_gvt-d.c
--- a/usr.sbin/bhyve/amd64/pci_gvt-d.c
+++ b/usr.sbin/bhyve/amd64/pci_gvt-d.c
@@ -43,6 +43,58 @@
#define GVT_D_MAP_OPREGION 1
#define GVT_D_MAP_VBT 2
+static int
+gvt_d_dsmbase_read(struct pci_devinst *pi, uint64_t off, uint64_t size, uint64_t *rv)
+{
+ assert((off & (size - 1)) == 0);
+
+ switch (size) {
+ case 1:
+ *rv = pci_get_cfgdata8(pi, PCIR_BDSM_GEN11 + off);
+ break;
+ case 2:
+ *rv = pci_get_cfgdata16(pi, PCIR_BDSM_GEN11 + off);
+ break;
+ case 4:
+ *rv = pci_get_cfgdata32(pi, PCIR_BDSM_GEN11 + off);
+ break;
+ case 8:
+ *rv = pci_get_cfgdata32(pi, PCIR_BDSM_GEN11 + off);
+ *rv |= (((uint64_t)pci_get_cfgdata32(pi, off)) << 32);
+ break;
+ default:
+ return (-1);
+ }
+
+ return (0);
+}
+
+static int
+gvt_d_dsmbase_write(struct pci_devinst *pi, uint64_t off, uint64_t size, uint64_t val)
+{
+ assert((off & (size - 1)) == 0);
+
+ switch (size) {
+ case 1:
+ pci_set_cfgdata8(pi, PCIR_BDSM_GEN11 + off, val);
+ break;
+ case 2:
+ pci_set_cfgdata16(pi, PCIR_BDSM_GEN11 + off, val);
+ break;
+ case 4:
+ pci_set_cfgdata32(pi, PCIR_BDSM_GEN11 + off, val);
+ break;
+ case 8:
+ pci_set_cfgdata32(pi, PCIR_BDSM_GEN11 + off, val);
+ pci_set_cfgdata32(pi, PCIR_BDSM_GEN11 + off, val >> 32);
+ break;
+ default:
+ return (-1);
+ }
+
+ return (0);
+}
+
static int
set_bdsm_gen3(struct pci_devinst *const pi, vm_paddr_t bdsm_gpa)
{
@@ -83,6 +135,13 @@
return (error);
}
+ /* Protect the BDSM register in MMIO space. */
+ error = passthru_set_bar_handler(sc, 0, 0x1080C0, sizeof(uint64_t), gvt_d_dsmbase_read, gvt_d_dsmbase_write);
+ if (error) {
+ warnx("%s: Failed to setup handler for BDSM mirror!\n", __func__);
+ return (error);
+ }
+
return (0);
}

File Metadata

Mime Type
text/plain
Expires
Sat, Apr 25, 1:23 AM (6 h, 15 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
32102729
Default Alt Text
D45342.id156886.diff (1 KB)

Event Timeline