return NULL;
}
+static uint32_t get_throughable_mask(const XenPCIPassthroughState *s,
+ XenPTRegInfo *reg, uint32_t valid_mask)
+{
+ uint32_t throughable_mask = ~(reg->emu_mask | reg->ro_mask);
+
+ if (!s->permissive) {
+ throughable_mask &= ~reg->res_mask;
+ }
+
+ return throughable_mask & valid_mask;
+}
/****************
* general register functions
{
XenPTRegInfo *reg = cfg_entry->reg;
uint8_t writable_mask = 0;
- uint8_t throughable_mask = 0;
+ uint8_t throughable_mask = get_throughable_mask(s, reg, valid_mask);
/* modify emulate register */
writable_mask = reg->emu_mask & ~reg->ro_mask & valid_mask;
cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);
/* create value for writing to I/O device register */
- throughable_mask = ~reg->emu_mask & valid_mask;
*val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
return 0;
{
XenPTRegInfo *reg = cfg_entry->reg;
uint16_t writable_mask = 0;
- uint16_t throughable_mask = 0;
+ uint16_t throughable_mask = get_throughable_mask(s, reg, valid_mask);
/* modify emulate register */
writable_mask = reg->emu_mask & ~reg->ro_mask & valid_mask;
cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);
/* create value for writing to I/O device register */
- throughable_mask = ~reg->emu_mask & valid_mask;
*val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
return 0;
{
XenPTRegInfo *reg = cfg_entry->reg;
uint32_t writable_mask = 0;
- uint32_t throughable_mask = 0;
+ uint32_t throughable_mask = get_throughable_mask(s, reg, valid_mask);
/* modify emulate register */
writable_mask = reg->emu_mask & ~reg->ro_mask & valid_mask;
cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);
/* create value for writing to I/O device register */
- throughable_mask = ~reg->emu_mask & valid_mask;
*val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
return 0;
}
/* Command register */
-static int xen_pt_cmd_reg_read(XenPCIPassthroughState *s, XenPTReg *cfg_entry,
- uint16_t *value, uint16_t valid_mask)
-{
- XenPTRegInfo *reg = cfg_entry->reg;
- uint16_t valid_emu_mask = 0;
- uint16_t emu_mask = reg->emu_mask;
-
- if (s->is_virtfn) {
- emu_mask |= PCI_COMMAND_MEMORY;
- }
-
- /* emulate word register */
- valid_emu_mask = emu_mask & valid_mask;
- *value = XEN_PT_MERGE_VALUE(*value, cfg_entry->data, ~valid_emu_mask);
-
- return 0;
-}
static int xen_pt_cmd_reg_write(XenPCIPassthroughState *s, XenPTReg *cfg_entry,
uint16_t *val, uint16_t dev_value,
uint16_t valid_mask)
{
XenPTRegInfo *reg = cfg_entry->reg;
uint16_t writable_mask = 0;
- uint16_t throughable_mask = 0;
- uint16_t emu_mask = reg->emu_mask;
-
- if (s->is_virtfn) {
- emu_mask |= PCI_COMMAND_MEMORY;
- }
+ uint16_t throughable_mask = get_throughable_mask(s, reg, valid_mask);
/* modify emulate register */
writable_mask = ~reg->ro_mask & valid_mask;
cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);
/* create value for writing to I/O device register */
- throughable_mask = ~emu_mask & valid_mask;
-
if (*val & PCI_COMMAND_INTX_DISABLE) {
throughable_mask |= PCI_COMMAND_INTX_DISABLE;
} else {
}
static XenPTBarFlag xen_pt_bar_reg_parse(XenPCIPassthroughState *s,
- XenPTRegInfo *reg)
+ int index)
{
PCIDevice *d = &s->dev;
XenPTRegion *region = NULL;
PCIIORegion *r;
- int index = 0;
/* check 64bit BAR */
- index = xen_pt_bar_offset_to_index(reg->offset);
if ((0 < index) && (index < PCI_ROM_SLOT)) {
int type = s->real_device.io_regions[index - 1].type;
}
/* set BAR flag */
- s->bases[index].bar_flag = xen_pt_bar_reg_parse(s, reg);
+ s->bases[index].bar_flag = xen_pt_bar_reg_parse(s, index);
if (s->bases[index].bar_flag == XEN_PT_BAR_FLAG_UNUSED) {
reg_field = XEN_PT_INVALID_REG;
}
/* get BAR index */
index = xen_pt_bar_offset_to_index(reg->offset);
- if (index < 0 || index >= PCI_NUM_REGIONS) {
+ if (index < 0 || index >= PCI_NUM_REGIONS - 1) {
XEN_PT_ERR(&s->dev, "Internal error: Invalid BAR index [%d].\n", index);
return -1;
}
PCIDevice *d = &s->dev;
const PCIIORegion *r;
uint32_t writable_mask = 0;
- uint32_t throughable_mask = 0;
uint32_t bar_emu_mask = 0;
uint32_t bar_ro_mask = 0;
uint32_t r_size = 0;
}
/* create value for writing to I/O device register */
- throughable_mask = ~bar_emu_mask & valid_mask;
- *val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
+ *val = XEN_PT_MERGE_VALUE(*val, dev_value, 0);
return 0;
}
XenPTRegion *base = NULL;
PCIDevice *d = (PCIDevice *)&s->dev;
uint32_t writable_mask = 0;
- uint32_t throughable_mask = 0;
+ uint32_t throughable_mask = get_throughable_mask(s, reg, valid_mask);
pcibus_t r_size = 0;
- uint32_t bar_emu_mask = 0;
uint32_t bar_ro_mask = 0;
r_size = d->io_regions[PCI_ROM_SLOT].size;
r_size = xen_pt_get_emul_size(base->bar_flag, r_size);
/* set emulate mask and read-only mask */
- bar_emu_mask = reg->emu_mask;
bar_ro_mask = (reg->ro_mask | (r_size - 1)) & ~PCI_ROM_ADDRESS_ENABLE;
/* modify emulate register */
cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);
/* create value for writing to I/O device register */
- throughable_mask = ~bar_emu_mask & valid_mask;
*val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
return 0;
.offset = PCI_COMMAND,
.size = 2,
.init_val = 0x0000,
- .ro_mask = 0xF880,
- .emu_mask = 0x0740,
+ .res_mask = 0xF880,
+ .emu_mask = 0x0743,
.init = xen_pt_common_reg_init,
- .u.w.read = xen_pt_cmd_reg_read,
+ .u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_cmd_reg_write,
},
/* Capabilities Pointer reg */
.offset = PCI_STATUS,
.size = 2,
.init_val = 0x0000,
- .ro_mask = 0x06FF,
+ .res_mask = 0x0007,
+ .ro_mask = 0x06F8,
.emu_mask = 0x0010,
.init = xen_pt_status_reg_init,
.u.w.read = xen_pt_word_reg_read,
.offset = PCI_ROM_ADDRESS,
.size = 4,
.init_val = 0x00000000,
- .ro_mask = 0x000007FE,
- .emu_mask = 0xFFFFF800,
+ .ro_mask = ~PCI_ROM_ADDRESS_MASK & ~PCI_ROM_ADDRESS_ENABLE,
+ .emu_mask = (uint32_t)PCI_ROM_ADDRESS_MASK,
.init = xen_pt_bar_reg_init,
.u.dw.read = xen_pt_long_reg_read,
.u.dw.write = xen_pt_exp_rom_bar_reg_write,
.u.b.read = xen_pt_byte_reg_read,
.u.b.write = xen_pt_byte_reg_write,
},
+ {
+ .offset = PCI_VPD_ADDR,
+ .size = 2,
+ .ro_mask = 0x0003,
+ .emu_mask = 0x0003,
+ .init = xen_pt_common_reg_init,
+ .u.w.read = xen_pt_word_reg_read,
+ .u.w.write = xen_pt_word_reg_write,
+ },
{
.size = 0,
},
.offset = PCI_EXP_DEVCAP,
.size = 4,
.init_val = 0x00000000,
- .ro_mask = 0x1FFCFFFF,
+ .ro_mask = 0xFFFFFFFF,
.emu_mask = 0x10000000,
.init = xen_pt_common_reg_init,
.u.dw.read = xen_pt_long_reg_read,
.u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_word_reg_write,
},
+ /* Device Status reg */
+ {
+ .offset = PCI_EXP_DEVSTA,
+ .size = 2,
+ .res_mask = 0xFFC0,
+ .ro_mask = 0x0030,
+ .init = xen_pt_common_reg_init,
+ .u.w.read = xen_pt_word_reg_read,
+ .u.w.write = xen_pt_word_reg_write,
+ },
/* Link Control reg */
{
.offset = PCI_EXP_LNKCTL,
.u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_word_reg_write,
},
+ /* Link Status reg */
+ {
+ .offset = PCI_EXP_LNKSTA,
+ .size = 2,
+ .ro_mask = 0x3FFF,
+ .init = xen_pt_common_reg_init,
+ .u.w.read = xen_pt_word_reg_read,
+ .u.w.write = xen_pt_word_reg_write,
+ },
/* Device Control 2 reg */
{
.offset = 0x28,
* Power Management Capability
*/
-/* read Power Management Control/Status register */
-static int xen_pt_pmcsr_reg_read(XenPCIPassthroughState *s, XenPTReg *cfg_entry,
- uint16_t *value, uint16_t valid_mask)
-{
- XenPTRegInfo *reg = cfg_entry->reg;
- uint16_t valid_emu_mask = reg->emu_mask;
-
- valid_emu_mask |= PCI_PM_CTRL_STATE_MASK | PCI_PM_CTRL_NO_SOFT_RESET;
-
- valid_emu_mask = valid_emu_mask & valid_mask;
- *value = XEN_PT_MERGE_VALUE(*value, cfg_entry->data, ~valid_emu_mask);
-
- return 0;
-}
/* write Power Management Control/Status register */
static int xen_pt_pmcsr_reg_write(XenPCIPassthroughState *s,
XenPTReg *cfg_entry, uint16_t *val,
uint16_t dev_value, uint16_t valid_mask)
{
XenPTRegInfo *reg = cfg_entry->reg;
- uint16_t emu_mask = reg->emu_mask;
uint16_t writable_mask = 0;
- uint16_t throughable_mask = 0;
-
- emu_mask |= PCI_PM_CTRL_STATE_MASK | PCI_PM_CTRL_NO_SOFT_RESET;
+ uint16_t throughable_mask = get_throughable_mask(s, reg, valid_mask);
/* modify emulate register */
- writable_mask = emu_mask & ~reg->ro_mask & valid_mask;
+ writable_mask = reg->emu_mask & ~reg->ro_mask & valid_mask;
cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);
/* create value for writing to I/O device register */
- throughable_mask = ~emu_mask & valid_mask;
- *val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
+ *val = XEN_PT_MERGE_VALUE(*val, dev_value & ~PCI_PM_CTRL_PME_STATUS,
+ throughable_mask);
return 0;
}
.offset = PCI_PM_CTRL,
.size = 2,
.init_val = 0x0008,
- .ro_mask = 0xE1FC,
- .emu_mask = 0x8100,
+ .res_mask = 0x00F0,
+ .ro_mask = 0xE10C,
+ .emu_mask = 0x810B,
.init = xen_pt_common_reg_init,
- .u.w.read = xen_pt_pmcsr_reg_read,
+ .u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_pmcsr_reg_write,
},
{
*/
/* Helper */
-static bool xen_pt_msgdata_check_type(uint32_t offset, uint16_t flags)
-{
- /* check the offset whether matches the type or not */
- bool is_32 = (offset == PCI_MSI_DATA_32) && !(flags & PCI_MSI_FLAGS_64BIT);
- bool is_64 = (offset == PCI_MSI_DATA_64) && (flags & PCI_MSI_FLAGS_64BIT);
- return is_32 || is_64;
-}
+#define xen_pt_msi_check_type(offset, flags, what) \
+ ((offset) == ((flags) & PCI_MSI_FLAGS_64BIT ? \
+ PCI_MSI_##what##_64 : PCI_MSI_##what##_32))
/* Message Control register */
static int xen_pt_msgctrl_reg_init(XenPCIPassthroughState *s,
XenPTRegInfo *reg = cfg_entry->reg;
XenPTMSI *msi = s->msi;
uint16_t writable_mask = 0;
- uint16_t throughable_mask = 0;
- uint16_t raw_val;
+ uint16_t throughable_mask = get_throughable_mask(s, reg, valid_mask);
/* Currently no support for multi-vector */
if (*val & PCI_MSI_FLAGS_QSIZE) {
msi->flags |= cfg_entry->data & ~PCI_MSI_FLAGS_ENABLE;
/* create value for writing to I/O device register */
- raw_val = *val;
- throughable_mask = ~reg->emu_mask & valid_mask;
*val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
/* update MSI */
- if (raw_val & PCI_MSI_FLAGS_ENABLE) {
+ if (*val & PCI_MSI_FLAGS_ENABLE) {
/* setup MSI pirq for the first time */
if (!msi->initialized) {
/* Init physical one */
xen_pt_msi_disable(s);
}
- /* pass through MSI_ENABLE bit */
- *val &= ~PCI_MSI_FLAGS_ENABLE;
- *val |= raw_val & PCI_MSI_FLAGS_ENABLE;
-
return 0;
}
uint32_t offset = reg->offset;
/* check the offset whether matches the type or not */
- if (xen_pt_msgdata_check_type(offset, flags)) {
+ if (xen_pt_msi_check_type(offset, flags, DATA)) {
+ *data = reg->init_val;
+ } else {
+ *data = XEN_PT_INVALID_REG;
+ }
+ return 0;
+}
+
+/* this function will be called twice (for 32 bit and 64 bit type) */
+/* initialize Mask register */
+static int xen_pt_mask_reg_init(XenPCIPassthroughState *s,
+ XenPTRegInfo *reg, uint32_t real_offset,
+ uint32_t *data)
+{
+ uint32_t flags = s->msi->flags;
+
+ /* check the offset whether matches the type or not */
+ if (!(flags & PCI_MSI_FLAGS_MASKBIT)) {
+ *data = XEN_PT_INVALID_REG;
+ } else if (xen_pt_msi_check_type(reg->offset, flags, MASK)) {
+ *data = reg->init_val;
+ } else {
+ *data = XEN_PT_INVALID_REG;
+ }
+ return 0;
+}
+
+/* this function will be called twice (for 32 bit and 64 bit type) */
+/* initialize Pending register */
+static int xen_pt_pending_reg_init(XenPCIPassthroughState *s,
+ XenPTRegInfo *reg, uint32_t real_offset,
+ uint32_t *data)
+{
+ uint32_t flags = s->msi->flags;
+
+ /* check the offset whether matches the type or not */
+ if (!(flags & PCI_MSI_FLAGS_MASKBIT)) {
+ *data = XEN_PT_INVALID_REG;
+ } else if (xen_pt_msi_check_type(reg->offset, flags, PENDING)) {
*data = reg->init_val;
} else {
*data = XEN_PT_INVALID_REG;
{
XenPTRegInfo *reg = cfg_entry->reg;
uint32_t writable_mask = 0;
- uint32_t throughable_mask = 0;
uint32_t old_addr = cfg_entry->data;
/* modify emulate register */
s->msi->addr_lo = cfg_entry->data;
/* create value for writing to I/O device register */
- throughable_mask = ~reg->emu_mask & valid_mask;
- *val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
+ *val = XEN_PT_MERGE_VALUE(*val, dev_value, 0);
/* update MSI */
if (cfg_entry->data != old_addr) {
{
XenPTRegInfo *reg = cfg_entry->reg;
uint32_t writable_mask = 0;
- uint32_t throughable_mask = 0;
uint32_t old_addr = cfg_entry->data;
/* check whether the type is 64 bit or not */
s->msi->addr_hi = cfg_entry->data;
/* create value for writing to I/O device register */
- throughable_mask = ~reg->emu_mask & valid_mask;
- *val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
+ *val = XEN_PT_MERGE_VALUE(*val, dev_value, 0);
/* update MSI */
if (cfg_entry->data != old_addr) {
XenPTRegInfo *reg = cfg_entry->reg;
XenPTMSI *msi = s->msi;
uint16_t writable_mask = 0;
- uint16_t throughable_mask = 0;
uint16_t old_data = cfg_entry->data;
uint32_t offset = reg->offset;
/* check the offset whether matches the type or not */
- if (!xen_pt_msgdata_check_type(offset, msi->flags)) {
+ if (!xen_pt_msi_check_type(offset, msi->flags, DATA)) {
/* exit I/O emulator */
XEN_PT_ERR(&s->dev, "the offset does not match the 32/64 bit type!\n");
return -1;
msi->data = cfg_entry->data;
/* create value for writing to I/O device register */
- throughable_mask = ~reg->emu_mask & valid_mask;
- *val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
+ *val = XEN_PT_MERGE_VALUE(*val, dev_value, 0);
/* update MSI */
if (cfg_entry->data != old_data) {
.offset = PCI_MSI_FLAGS,
.size = 2,
.init_val = 0x0000,
- .ro_mask = 0xFF8E,
- .emu_mask = 0x007F,
+ .res_mask = 0xFE00,
+ .ro_mask = 0x018E,
+ .emu_mask = 0x017E,
.init = xen_pt_msgctrl_reg_init,
.u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_msgctrl_reg_write,
.init_val = 0x00000000,
.ro_mask = 0x00000003,
.emu_mask = 0xFFFFFFFF,
- .no_wb = 1,
.init = xen_pt_common_reg_init,
.u.dw.read = xen_pt_long_reg_read,
.u.dw.write = xen_pt_msgaddr32_reg_write,
.init_val = 0x00000000,
.ro_mask = 0x00000000,
.emu_mask = 0xFFFFFFFF,
- .no_wb = 1,
.init = xen_pt_msgaddr64_reg_init,
.u.dw.read = xen_pt_long_reg_read,
.u.dw.write = xen_pt_msgaddr64_reg_write,
.init_val = 0x0000,
.ro_mask = 0x0000,
.emu_mask = 0xFFFF,
- .no_wb = 1,
.init = xen_pt_msgdata_reg_init,
.u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_msgdata_reg_write,
.init_val = 0x0000,
.ro_mask = 0x0000,
.emu_mask = 0xFFFF,
- .no_wb = 1,
.init = xen_pt_msgdata_reg_init,
.u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_msgdata_reg_write,
},
+ /* Mask reg (if PCI_MSI_FLAGS_MASKBIT set, for 32-bit devices) */
+ {
+ .offset = PCI_MSI_MASK_32,
+ .size = 4,
+ .init_val = 0x00000000,
+ .ro_mask = 0xFFFFFFFF,
+ .emu_mask = 0xFFFFFFFF,
+ .init = xen_pt_mask_reg_init,
+ .u.dw.read = xen_pt_long_reg_read,
+ .u.dw.write = xen_pt_long_reg_write,
+ },
+ /* Mask reg (if PCI_MSI_FLAGS_MASKBIT set, for 64-bit devices) */
+ {
+ .offset = PCI_MSI_MASK_64,
+ .size = 4,
+ .init_val = 0x00000000,
+ .ro_mask = 0xFFFFFFFF,
+ .emu_mask = 0xFFFFFFFF,
+ .init = xen_pt_mask_reg_init,
+ .u.dw.read = xen_pt_long_reg_read,
+ .u.dw.write = xen_pt_long_reg_write,
+ },
+ /* Pending reg (if PCI_MSI_FLAGS_MASKBIT set, for 32-bit devices) */
+ {
+ .offset = PCI_MSI_MASK_32 + 4,
+ .size = 4,
+ .init_val = 0x00000000,
+ .ro_mask = 0xFFFFFFFF,
+ .emu_mask = 0x00000000,
+ .init = xen_pt_pending_reg_init,
+ .u.dw.read = xen_pt_long_reg_read,
+ .u.dw.write = xen_pt_long_reg_write,
+ },
+ /* Pending reg (if PCI_MSI_FLAGS_MASKBIT set, for 64-bit devices) */
+ {
+ .offset = PCI_MSI_MASK_64 + 4,
+ .size = 4,
+ .init_val = 0x00000000,
+ .ro_mask = 0xFFFFFFFF,
+ .emu_mask = 0x00000000,
+ .init = xen_pt_pending_reg_init,
+ .u.dw.read = xen_pt_long_reg_read,
+ .u.dw.write = xen_pt_long_reg_write,
+ },
{
.size = 0,
},
{
XenPTRegInfo *reg = cfg_entry->reg;
uint16_t writable_mask = 0;
- uint16_t throughable_mask = 0;
+ uint16_t throughable_mask = get_throughable_mask(s, reg, valid_mask);
int debug_msix_enabled_old;
/* modify emulate register */
cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);
/* create value for writing to I/O device register */
- throughable_mask = ~reg->emu_mask & valid_mask;
*val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
/* update MSI-X */
.offset = PCI_MSI_FLAGS,
.size = 2,
.init_val = 0x0000,
- .ro_mask = 0x3FFF,
+ .res_mask = 0x3800,
+ .ro_mask = 0x07FF,
.emu_mask = 0x0000,
.init = xen_pt_msixctrl_reg_init,
.u.w.read = xen_pt_word_reg_read,
projects / mirror_qemu.git / blobdiff