diff options
Diffstat (limited to 'hw/xen_pt_config_init.c')
| -rw-r--r-- | hw/xen_pt_config_init.c | 53 |
1 files changed, 33 insertions, 20 deletions
diff --git a/hw/xen_pt_config_init.c b/hw/xen_pt_config_init.c index 00eb3d997..0a5f82cb8 100644 --- a/hw/xen_pt_config_init.c +++ b/hw/xen_pt_config_init.c @@ -342,6 +342,23 @@ static int xen_pt_cmd_reg_write(XenPCIPassthroughState *s, XenPTReg *cfg_entry, #define XEN_PT_BAR_IO_RO_MASK 0x00000003 /* BAR ReadOnly mask(I/O) */ #define XEN_PT_BAR_IO_EMU_MASK 0xFFFFFFFC /* BAR emul mask(I/O) */ +static bool is_64bit_bar(PCIIORegion *r) +{ + return !!(r->type & PCI_BASE_ADDRESS_MEM_TYPE_64); +} + +static uint64_t xen_pt_get_bar_size(PCIIORegion *r) +{ + if (is_64bit_bar(r)) { + uint64_t size64; + size64 = (r + 1)->size; + size64 <<= 32; + size64 += r->size; + return size64; + } + return r->size; +} + static XenPTBarFlag xen_pt_bar_reg_parse(XenPCIPassthroughState *s, XenPTRegInfo *reg) { @@ -366,7 +383,7 @@ static XenPTBarFlag xen_pt_bar_reg_parse(XenPCIPassthroughState *s, /* check unused BAR */ r = &d->io_regions[index]; - if (r->size == 0) { + if (!xen_pt_get_bar_size(r)) { return XEN_PT_BAR_FLAG_UNUSED; } @@ -481,7 +498,12 @@ static int xen_pt_bar_reg_write(XenPCIPassthroughState *s, XenPTReg *cfg_entry, switch (s->bases[index].bar_flag) { case XEN_PT_BAR_FLAG_MEM: bar_emu_mask = XEN_PT_BAR_MEM_EMU_MASK; - bar_ro_mask = XEN_PT_BAR_MEM_RO_MASK | (r_size - 1); + if (!r_size) { + /* low 32 bits mask for 64 bit bars */ + bar_ro_mask = XEN_PT_BAR_ALLF; + } else { + bar_ro_mask = XEN_PT_BAR_MEM_RO_MASK | (r_size - 1); + } break; case XEN_PT_BAR_FLAG_IO: bar_emu_mask = XEN_PT_BAR_IO_EMU_MASK; @@ -489,7 +511,7 @@ static int xen_pt_bar_reg_write(XenPCIPassthroughState *s, XenPTReg *cfg_entry, break; case XEN_PT_BAR_FLAG_UPPER: bar_emu_mask = XEN_PT_BAR_ALLF; - bar_ro_mask = 0; /* all upper 32bit are R/W */ + bar_ro_mask = r_size ? r_size - 1 : 0; break; default: break; @@ -501,22 +523,13 @@ static int xen_pt_bar_reg_write(XenPCIPassthroughState *s, XenPTReg *cfg_entry, /* check whether we need to update the virtual region address or not */ switch (s->bases[index].bar_flag) { + case XEN_PT_BAR_FLAG_UPPER: case XEN_PT_BAR_FLAG_MEM: /* nothing to do */ break; case XEN_PT_BAR_FLAG_IO: /* nothing to do */ break; - case XEN_PT_BAR_FLAG_UPPER: - if (cfg_entry->data) { - if (cfg_entry->data != (XEN_PT_BAR_ALLF & ~bar_ro_mask)) { - XEN_PT_WARN(d, "Guest attempt to set high MMIO Base Address. " - "Ignore mapping. " - "(offset: 0x%02x, high address: 0x%08x)\n", - reg->offset, cfg_entry->data); - } - } - break; default: break; } @@ -562,7 +575,7 @@ static int xen_pt_exp_rom_bar_reg_write(XenPCIPassthroughState *s, return 0; } -/* Header Type0 reg static infomation table */ +/* Header Type0 reg static information table */ static XenPTRegInfo xen_pt_emu_reg_header0[] = { /* Vendor ID reg */ { @@ -753,7 +766,7 @@ static XenPTRegInfo xen_pt_emu_reg_header0[] = { * Vital Product Data Capability */ -/* Vital Product Data Capability Structure reg static infomation table */ +/* Vital Product Data Capability Structure reg static information table */ static XenPTRegInfo xen_pt_emu_reg_vpd[] = { { .offset = PCI_CAP_LIST_NEXT, @@ -775,7 +788,7 @@ static XenPTRegInfo xen_pt_emu_reg_vpd[] = { * Vendor Specific Capability */ -/* Vendor Specific Capability Structure reg static infomation table */ +/* Vendor Specific Capability Structure reg static information table */ static XenPTRegInfo xen_pt_emu_reg_vendor[] = { { .offset = PCI_CAP_LIST_NEXT, @@ -866,7 +879,7 @@ static int xen_pt_linkctrl2_reg_init(XenPCIPassthroughState *s, return 0; } -/* PCI Express Capability Structure reg static infomation table */ +/* PCI Express Capability Structure reg static information table */ static XenPTRegInfo xen_pt_emu_reg_pcie[] = { /* Next Pointer reg */ { @@ -981,7 +994,7 @@ static int xen_pt_pmcsr_reg_write(XenPCIPassthroughState *s, return 0; } -/* Power Management Capability reg static infomation table */ +/* Power Management Capability reg static information table */ static XenPTRegInfo xen_pt_emu_reg_pm[] = { /* Next Pointer reg */ { @@ -1259,7 +1272,7 @@ static int xen_pt_msgdata_reg_write(XenPCIPassthroughState *s, return 0; } -/* MSI Capability Structure reg static infomation table */ +/* MSI Capability Structure reg static information table */ static XenPTRegInfo xen_pt_emu_reg_msi[] = { /* Next Pointer reg */ { @@ -1396,7 +1409,7 @@ static int xen_pt_msixctrl_reg_write(XenPCIPassthroughState *s, return 0; } -/* MSI-X Capability Structure reg static infomation table */ +/* MSI-X Capability Structure reg static information table */ static XenPTRegInfo xen_pt_emu_reg_msix[] = { /* Next Pointer reg */ { |