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-rw-r--r--qemu/hw/ppc/spapr_pci.c1919
1 files changed, 0 insertions, 1919 deletions
diff --git a/qemu/hw/ppc/spapr_pci.c b/qemu/hw/ppc/spapr_pci.c
deleted file mode 100644
index 573e635bf..000000000
--- a/qemu/hw/ppc/spapr_pci.c
+++ /dev/null
@@ -1,1919 +0,0 @@
-/*
- * QEMU sPAPR PCI host originated from Uninorth PCI host
- *
- * Copyright (c) 2011 Alexey Kardashevskiy, IBM Corporation.
- * Copyright (C) 2011 David Gibson, IBM Corporation.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu-common.h"
-#include "cpu.h"
-#include "hw/hw.h"
-#include "hw/sysbus.h"
-#include "hw/pci/pci.h"
-#include "hw/pci/msi.h"
-#include "hw/pci/msix.h"
-#include "hw/pci/pci_host.h"
-#include "hw/ppc/spapr.h"
-#include "hw/pci-host/spapr.h"
-#include "exec/address-spaces.h"
-#include <libfdt.h>
-#include "trace.h"
-#include "qemu/error-report.h"
-#include "qapi/qmp/qerror.h"
-
-#include "hw/pci/pci_bridge.h"
-#include "hw/pci/pci_bus.h"
-#include "hw/ppc/spapr_drc.h"
-#include "sysemu/device_tree.h"
-
-#include "hw/vfio/vfio.h"
-
-/* Copied from the kernel arch/powerpc/platforms/pseries/msi.c */
-#define RTAS_QUERY_FN 0
-#define RTAS_CHANGE_FN 1
-#define RTAS_RESET_FN 2
-#define RTAS_CHANGE_MSI_FN 3
-#define RTAS_CHANGE_MSIX_FN 4
-
-/* Interrupt types to return on RTAS_CHANGE_* */
-#define RTAS_TYPE_MSI 1
-#define RTAS_TYPE_MSIX 2
-
-#define FDT_NAME_MAX 128
-
-#define _FDT(exp) \
- do { \
- int ret = (exp); \
- if (ret < 0) { \
- return ret; \
- } \
- } while (0)
-
-sPAPRPHBState *spapr_pci_find_phb(sPAPRMachineState *spapr, uint64_t buid)
-{
- sPAPRPHBState *sphb;
-
- QLIST_FOREACH(sphb, &spapr->phbs, list) {
- if (sphb->buid != buid) {
- continue;
- }
- return sphb;
- }
-
- return NULL;
-}
-
-PCIDevice *spapr_pci_find_dev(sPAPRMachineState *spapr, uint64_t buid,
- uint32_t config_addr)
-{
- sPAPRPHBState *sphb = spapr_pci_find_phb(spapr, buid);
- PCIHostState *phb = PCI_HOST_BRIDGE(sphb);
- int bus_num = (config_addr >> 16) & 0xFF;
- int devfn = (config_addr >> 8) & 0xFF;
-
- if (!phb) {
- return NULL;
- }
-
- return pci_find_device(phb->bus, bus_num, devfn);
-}
-
-static uint32_t rtas_pci_cfgaddr(uint32_t arg)
-{
- /* This handles the encoding of extended config space addresses */
- return ((arg >> 20) & 0xf00) | (arg & 0xff);
-}
-
-static void finish_read_pci_config(sPAPRMachineState *spapr, uint64_t buid,
- uint32_t addr, uint32_t size,
- target_ulong rets)
-{
- PCIDevice *pci_dev;
- uint32_t val;
-
- if ((size != 1) && (size != 2) && (size != 4)) {
- /* access must be 1, 2 or 4 bytes */
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- pci_dev = spapr_pci_find_dev(spapr, buid, addr);
- addr = rtas_pci_cfgaddr(addr);
-
- if (!pci_dev || (addr % size) || (addr >= pci_config_size(pci_dev))) {
- /* Access must be to a valid device, within bounds and
- * naturally aligned */
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- val = pci_host_config_read_common(pci_dev, addr,
- pci_config_size(pci_dev), size);
-
- rtas_st(rets, 0, RTAS_OUT_SUCCESS);
- rtas_st(rets, 1, val);
-}
-
-static void rtas_ibm_read_pci_config(PowerPCCPU *cpu, sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args,
- uint32_t nret, target_ulong rets)
-{
- uint64_t buid;
- uint32_t size, addr;
-
- if ((nargs != 4) || (nret != 2)) {
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- buid = rtas_ldq(args, 1);
- size = rtas_ld(args, 3);
- addr = rtas_ld(args, 0);
-
- finish_read_pci_config(spapr, buid, addr, size, rets);
-}
-
-static void rtas_read_pci_config(PowerPCCPU *cpu, sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args,
- uint32_t nret, target_ulong rets)
-{
- uint32_t size, addr;
-
- if ((nargs != 2) || (nret != 2)) {
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- size = rtas_ld(args, 1);
- addr = rtas_ld(args, 0);
-
- finish_read_pci_config(spapr, 0, addr, size, rets);
-}
-
-static void finish_write_pci_config(sPAPRMachineState *spapr, uint64_t buid,
- uint32_t addr, uint32_t size,
- uint32_t val, target_ulong rets)
-{
- PCIDevice *pci_dev;
-
- if ((size != 1) && (size != 2) && (size != 4)) {
- /* access must be 1, 2 or 4 bytes */
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- pci_dev = spapr_pci_find_dev(spapr, buid, addr);
- addr = rtas_pci_cfgaddr(addr);
-
- if (!pci_dev || (addr % size) || (addr >= pci_config_size(pci_dev))) {
- /* Access must be to a valid device, within bounds and
- * naturally aligned */
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- pci_host_config_write_common(pci_dev, addr, pci_config_size(pci_dev),
- val, size);
-
- rtas_st(rets, 0, RTAS_OUT_SUCCESS);
-}
-
-static void rtas_ibm_write_pci_config(PowerPCCPU *cpu, sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args,
- uint32_t nret, target_ulong rets)
-{
- uint64_t buid;
- uint32_t val, size, addr;
-
- if ((nargs != 5) || (nret != 1)) {
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- buid = rtas_ldq(args, 1);
- val = rtas_ld(args, 4);
- size = rtas_ld(args, 3);
- addr = rtas_ld(args, 0);
-
- finish_write_pci_config(spapr, buid, addr, size, val, rets);
-}
-
-static void rtas_write_pci_config(PowerPCCPU *cpu, sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args,
- uint32_t nret, target_ulong rets)
-{
- uint32_t val, size, addr;
-
- if ((nargs != 3) || (nret != 1)) {
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
-
- val = rtas_ld(args, 2);
- size = rtas_ld(args, 1);
- addr = rtas_ld(args, 0);
-
- finish_write_pci_config(spapr, 0, addr, size, val, rets);
-}
-
-/*
- * Set MSI/MSIX message data.
- * This is required for msi_notify()/msix_notify() which
- * will write at the addresses via spapr_msi_write().
- *
- * If hwaddr == 0, all entries will have .data == first_irq i.e.
- * table will be reset.
- */
-static void spapr_msi_setmsg(PCIDevice *pdev, hwaddr addr, bool msix,
- unsigned first_irq, unsigned req_num)
-{
- unsigned i;
- MSIMessage msg = { .address = addr, .data = first_irq };
-
- if (!msix) {
- msi_set_message(pdev, msg);
- trace_spapr_pci_msi_setup(pdev->name, 0, msg.address);
- return;
- }
-
- for (i = 0; i < req_num; ++i) {
- msix_set_message(pdev, i, msg);
- trace_spapr_pci_msi_setup(pdev->name, i, msg.address);
- if (addr) {
- ++msg.data;
- }
- }
-}
-
-static void rtas_ibm_change_msi(PowerPCCPU *cpu, sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args, uint32_t nret,
- target_ulong rets)
-{
- uint32_t config_addr = rtas_ld(args, 0);
- uint64_t buid = rtas_ldq(args, 1);
- unsigned int func = rtas_ld(args, 3);
- unsigned int req_num = rtas_ld(args, 4); /* 0 == remove all */
- unsigned int seq_num = rtas_ld(args, 5);
- unsigned int ret_intr_type;
- unsigned int irq, max_irqs = 0;
- sPAPRPHBState *phb = NULL;
- PCIDevice *pdev = NULL;
- spapr_pci_msi *msi;
- int *config_addr_key;
- Error *err = NULL;
-
- switch (func) {
- case RTAS_CHANGE_MSI_FN:
- case RTAS_CHANGE_FN:
- ret_intr_type = RTAS_TYPE_MSI;
- break;
- case RTAS_CHANGE_MSIX_FN:
- ret_intr_type = RTAS_TYPE_MSIX;
- break;
- default:
- error_report("rtas_ibm_change_msi(%u) is not implemented", func);
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
- return;
- }
-
- /* Fins sPAPRPHBState */
- phb = spapr_pci_find_phb(spapr, buid);
- if (phb) {
- pdev = spapr_pci_find_dev(spapr, buid, config_addr);
- }
- if (!phb || !pdev) {
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
- return;
- }
-
- msi = (spapr_pci_msi *) g_hash_table_lookup(phb->msi, &config_addr);
-
- /* Releasing MSIs */
- if (!req_num) {
- if (!msi) {
- trace_spapr_pci_msi("Releasing wrong config", config_addr);
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- xics_free(spapr->icp, msi->first_irq, msi->num);
- if (msi_present(pdev)) {
- spapr_msi_setmsg(pdev, 0, false, 0, 0);
- }
- if (msix_present(pdev)) {
- spapr_msi_setmsg(pdev, 0, true, 0, 0);
- }
- g_hash_table_remove(phb->msi, &config_addr);
-
- trace_spapr_pci_msi("Released MSIs", config_addr);
- rtas_st(rets, 0, RTAS_OUT_SUCCESS);
- rtas_st(rets, 1, 0);
- return;
- }
-
- /* Enabling MSI */
-
- /* Check if the device supports as many IRQs as requested */
- if (ret_intr_type == RTAS_TYPE_MSI) {
- max_irqs = msi_nr_vectors_allocated(pdev);
- } else if (ret_intr_type == RTAS_TYPE_MSIX) {
- max_irqs = pdev->msix_entries_nr;
- }
- if (!max_irqs) {
- error_report("Requested interrupt type %d is not enabled for device %x",
- ret_intr_type, config_addr);
- rtas_st(rets, 0, -1); /* Hardware error */
- return;
- }
- /* Correct the number if the guest asked for too many */
- if (req_num > max_irqs) {
- trace_spapr_pci_msi_retry(config_addr, req_num, max_irqs);
- req_num = max_irqs;
- irq = 0; /* to avoid misleading trace */
- goto out;
- }
-
- /* Allocate MSIs */
- irq = xics_alloc_block(spapr->icp, 0, req_num, false,
- ret_intr_type == RTAS_TYPE_MSI, &err);
- if (err) {
- error_reportf_err(err, "Can't allocate MSIs for device %x: ",
- config_addr);
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- /* Release previous MSIs */
- if (msi) {
- xics_free(spapr->icp, msi->first_irq, msi->num);
- g_hash_table_remove(phb->msi, &config_addr);
- }
-
- /* Setup MSI/MSIX vectors in the device (via cfgspace or MSIX BAR) */
- spapr_msi_setmsg(pdev, SPAPR_PCI_MSI_WINDOW, ret_intr_type == RTAS_TYPE_MSIX,
- irq, req_num);
-
- /* Add MSI device to cache */
- msi = g_new(spapr_pci_msi, 1);
- msi->first_irq = irq;
- msi->num = req_num;
- config_addr_key = g_new(int, 1);
- *config_addr_key = config_addr;
- g_hash_table_insert(phb->msi, config_addr_key, msi);
-
-out:
- rtas_st(rets, 0, RTAS_OUT_SUCCESS);
- rtas_st(rets, 1, req_num);
- rtas_st(rets, 2, ++seq_num);
- if (nret > 3) {
- rtas_st(rets, 3, ret_intr_type);
- }
-
- trace_spapr_pci_rtas_ibm_change_msi(config_addr, func, req_num, irq);
-}
-
-static void rtas_ibm_query_interrupt_source_number(PowerPCCPU *cpu,
- sPAPRMachineState *spapr,
- uint32_t token,
- uint32_t nargs,
- target_ulong args,
- uint32_t nret,
- target_ulong rets)
-{
- uint32_t config_addr = rtas_ld(args, 0);
- uint64_t buid = rtas_ldq(args, 1);
- unsigned int intr_src_num = -1, ioa_intr_num = rtas_ld(args, 3);
- sPAPRPHBState *phb = NULL;
- PCIDevice *pdev = NULL;
- spapr_pci_msi *msi;
-
- /* Find sPAPRPHBState */
- phb = spapr_pci_find_phb(spapr, buid);
- if (phb) {
- pdev = spapr_pci_find_dev(spapr, buid, config_addr);
- }
- if (!phb || !pdev) {
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
- return;
- }
-
- /* Find device descriptor and start IRQ */
- msi = (spapr_pci_msi *) g_hash_table_lookup(phb->msi, &config_addr);
- if (!msi || !msi->first_irq || !msi->num || (ioa_intr_num >= msi->num)) {
- trace_spapr_pci_msi("Failed to return vector", config_addr);
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
- intr_src_num = msi->first_irq + ioa_intr_num;
- trace_spapr_pci_rtas_ibm_query_interrupt_source_number(ioa_intr_num,
- intr_src_num);
-
- rtas_st(rets, 0, RTAS_OUT_SUCCESS);
- rtas_st(rets, 1, intr_src_num);
- rtas_st(rets, 2, 1);/* 0 == level; 1 == edge */
-}
-
-static void rtas_ibm_set_eeh_option(PowerPCCPU *cpu,
- sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args, uint32_t nret,
- target_ulong rets)
-{
- sPAPRPHBState *sphb;
- uint32_t addr, option;
- uint64_t buid;
- int ret;
-
- if ((nargs != 4) || (nret != 1)) {
- goto param_error_exit;
- }
-
- buid = rtas_ldq(args, 1);
- addr = rtas_ld(args, 0);
- option = rtas_ld(args, 3);
-
- sphb = spapr_pci_find_phb(spapr, buid);
- if (!sphb) {
- goto param_error_exit;
- }
-
- if (!spapr_phb_eeh_available(sphb)) {
- goto param_error_exit;
- }
-
- ret = spapr_phb_vfio_eeh_set_option(sphb, addr, option);
- rtas_st(rets, 0, ret);
- return;
-
-param_error_exit:
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
-}
-
-static void rtas_ibm_get_config_addr_info2(PowerPCCPU *cpu,
- sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args, uint32_t nret,
- target_ulong rets)
-{
- sPAPRPHBState *sphb;
- PCIDevice *pdev;
- uint32_t addr, option;
- uint64_t buid;
-
- if ((nargs != 4) || (nret != 2)) {
- goto param_error_exit;
- }
-
- buid = rtas_ldq(args, 1);
- sphb = spapr_pci_find_phb(spapr, buid);
- if (!sphb) {
- goto param_error_exit;
- }
-
- if (!spapr_phb_eeh_available(sphb)) {
- goto param_error_exit;
- }
-
- /*
- * We always have PE address of form "00BB0001". "BB"
- * represents the bus number of PE's primary bus.
- */
- option = rtas_ld(args, 3);
- switch (option) {
- case RTAS_GET_PE_ADDR:
- addr = rtas_ld(args, 0);
- pdev = spapr_pci_find_dev(spapr, buid, addr);
- if (!pdev) {
- goto param_error_exit;
- }
-
- rtas_st(rets, 1, (pci_bus_num(pdev->bus) << 16) + 1);
- break;
- case RTAS_GET_PE_MODE:
- rtas_st(rets, 1, RTAS_PE_MODE_SHARED);
- break;
- default:
- goto param_error_exit;
- }
-
- rtas_st(rets, 0, RTAS_OUT_SUCCESS);
- return;
-
-param_error_exit:
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
-}
-
-static void rtas_ibm_read_slot_reset_state2(PowerPCCPU *cpu,
- sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args, uint32_t nret,
- target_ulong rets)
-{
- sPAPRPHBState *sphb;
- uint64_t buid;
- int state, ret;
-
- if ((nargs != 3) || (nret != 4 && nret != 5)) {
- goto param_error_exit;
- }
-
- buid = rtas_ldq(args, 1);
- sphb = spapr_pci_find_phb(spapr, buid);
- if (!sphb) {
- goto param_error_exit;
- }
-
- if (!spapr_phb_eeh_available(sphb)) {
- goto param_error_exit;
- }
-
- ret = spapr_phb_vfio_eeh_get_state(sphb, &state);
- rtas_st(rets, 0, ret);
- if (ret != RTAS_OUT_SUCCESS) {
- return;
- }
-
- rtas_st(rets, 1, state);
- rtas_st(rets, 2, RTAS_EEH_SUPPORT);
- rtas_st(rets, 3, RTAS_EEH_PE_UNAVAIL_INFO);
- if (nret >= 5) {
- rtas_st(rets, 4, RTAS_EEH_PE_RECOVER_INFO);
- }
- return;
-
-param_error_exit:
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
-}
-
-static void rtas_ibm_set_slot_reset(PowerPCCPU *cpu,
- sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args, uint32_t nret,
- target_ulong rets)
-{
- sPAPRPHBState *sphb;
- uint32_t option;
- uint64_t buid;
- int ret;
-
- if ((nargs != 4) || (nret != 1)) {
- goto param_error_exit;
- }
-
- buid = rtas_ldq(args, 1);
- option = rtas_ld(args, 3);
- sphb = spapr_pci_find_phb(spapr, buid);
- if (!sphb) {
- goto param_error_exit;
- }
-
- if (!spapr_phb_eeh_available(sphb)) {
- goto param_error_exit;
- }
-
- ret = spapr_phb_vfio_eeh_reset(sphb, option);
- rtas_st(rets, 0, ret);
- return;
-
-param_error_exit:
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
-}
-
-static void rtas_ibm_configure_pe(PowerPCCPU *cpu,
- sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args, uint32_t nret,
- target_ulong rets)
-{
- sPAPRPHBState *sphb;
- uint64_t buid;
- int ret;
-
- if ((nargs != 3) || (nret != 1)) {
- goto param_error_exit;
- }
-
- buid = rtas_ldq(args, 1);
- sphb = spapr_pci_find_phb(spapr, buid);
- if (!sphb) {
- goto param_error_exit;
- }
-
- if (!spapr_phb_eeh_available(sphb)) {
- goto param_error_exit;
- }
-
- ret = spapr_phb_vfio_eeh_configure(sphb);
- rtas_st(rets, 0, ret);
- return;
-
-param_error_exit:
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
-}
-
-/* To support it later */
-static void rtas_ibm_slot_error_detail(PowerPCCPU *cpu,
- sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args, uint32_t nret,
- target_ulong rets)
-{
- sPAPRPHBState *sphb;
- int option;
- uint64_t buid;
-
- if ((nargs != 8) || (nret != 1)) {
- goto param_error_exit;
- }
-
- buid = rtas_ldq(args, 1);
- sphb = spapr_pci_find_phb(spapr, buid);
- if (!sphb) {
- goto param_error_exit;
- }
-
- if (!spapr_phb_eeh_available(sphb)) {
- goto param_error_exit;
- }
-
- option = rtas_ld(args, 7);
- switch (option) {
- case RTAS_SLOT_TEMP_ERR_LOG:
- case RTAS_SLOT_PERM_ERR_LOG:
- break;
- default:
- goto param_error_exit;
- }
-
- /* We don't have error log yet */
- rtas_st(rets, 0, RTAS_OUT_NO_ERRORS_FOUND);
- return;
-
-param_error_exit:
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
-}
-
-static int pci_spapr_swizzle(int slot, int pin)
-{
- return (slot + pin) % PCI_NUM_PINS;
-}
-
-static int pci_spapr_map_irq(PCIDevice *pci_dev, int irq_num)
-{
- /*
- * Here we need to convert pci_dev + irq_num to some unique value
- * which is less than number of IRQs on the specific bus (4). We
- * use standard PCI swizzling, that is (slot number + pin number)
- * % 4.
- */
- return pci_spapr_swizzle(PCI_SLOT(pci_dev->devfn), irq_num);
-}
-
-static void pci_spapr_set_irq(void *opaque, int irq_num, int level)
-{
- /*
- * Here we use the number returned by pci_spapr_map_irq to find a
- * corresponding qemu_irq.
- */
- sPAPRPHBState *phb = opaque;
-
- trace_spapr_pci_lsi_set(phb->dtbusname, irq_num, phb->lsi_table[irq_num].irq);
- qemu_set_irq(spapr_phb_lsi_qirq(phb, irq_num), level);
-}
-
-static PCIINTxRoute spapr_route_intx_pin_to_irq(void *opaque, int pin)
-{
- sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(opaque);
- PCIINTxRoute route;
-
- route.mode = PCI_INTX_ENABLED;
- route.irq = sphb->lsi_table[pin].irq;
-
- return route;
-}
-
-/*
- * MSI/MSIX memory region implementation.
- * The handler handles both MSI and MSIX.
- * For MSI-X, the vector number is encoded as a part of the address,
- * data is set to 0.
- * For MSI, the vector number is encoded in least bits in data.
- */
-static void spapr_msi_write(void *opaque, hwaddr addr,
- uint64_t data, unsigned size)
-{
- sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
- uint32_t irq = data;
-
- trace_spapr_pci_msi_write(addr, data, irq);
-
- qemu_irq_pulse(xics_get_qirq(spapr->icp, irq));
-}
-
-static const MemoryRegionOps spapr_msi_ops = {
- /* There is no .read as the read result is undefined by PCI spec */
- .read = NULL,
- .write = spapr_msi_write,
- .endianness = DEVICE_LITTLE_ENDIAN
-};
-
-/*
- * PHB PCI device
- */
-static AddressSpace *spapr_pci_dma_iommu(PCIBus *bus, void *opaque, int devfn)
-{
- sPAPRPHBState *phb = opaque;
-
- return &phb->iommu_as;
-}
-
-static char *spapr_phb_vfio_get_loc_code(sPAPRPHBState *sphb, PCIDevice *pdev)
-{
- char *path = NULL, *buf = NULL, *host = NULL;
-
- /* Get the PCI VFIO host id */
- host = object_property_get_str(OBJECT(pdev), "host", NULL);
- if (!host) {
- goto err_out;
- }
-
- /* Construct the path of the file that will give us the DT location */
- path = g_strdup_printf("/sys/bus/pci/devices/%s/devspec", host);
- g_free(host);
- if (!path || !g_file_get_contents(path, &buf, NULL, NULL)) {
- goto err_out;
- }
- g_free(path);
-
- /* Construct and read from host device tree the loc-code */
- path = g_strdup_printf("/proc/device-tree%s/ibm,loc-code", buf);
- g_free(buf);
- if (!path || !g_file_get_contents(path, &buf, NULL, NULL)) {
- goto err_out;
- }
- return buf;
-
-err_out:
- g_free(path);
- return NULL;
-}
-
-static char *spapr_phb_get_loc_code(sPAPRPHBState *sphb, PCIDevice *pdev)
-{
- char *buf;
- const char *devtype = "qemu";
- uint32_t busnr = pci_bus_num(PCI_BUS(qdev_get_parent_bus(DEVICE(pdev))));
-
- if (object_dynamic_cast(OBJECT(pdev), "vfio-pci")) {
- buf = spapr_phb_vfio_get_loc_code(sphb, pdev);
- if (buf) {
- return buf;
- }
- devtype = "vfio";
- }
- /*
- * For emulated devices and VFIO-failure case, make up
- * the loc-code.
- */
- buf = g_strdup_printf("%s_%s:%04x:%02x:%02x.%x",
- devtype, pdev->name, sphb->index, busnr,
- PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
- return buf;
-}
-
-/* Macros to operate with address in OF binding to PCI */
-#define b_x(x, p, l) (((x) & ((1<<(l))-1)) << (p))
-#define b_n(x) b_x((x), 31, 1) /* 0 if relocatable */
-#define b_p(x) b_x((x), 30, 1) /* 1 if prefetchable */
-#define b_t(x) b_x((x), 29, 1) /* 1 if the address is aliased */
-#define b_ss(x) b_x((x), 24, 2) /* the space code */
-#define b_bbbbbbbb(x) b_x((x), 16, 8) /* bus number */
-#define b_ddddd(x) b_x((x), 11, 5) /* device number */
-#define b_fff(x) b_x((x), 8, 3) /* function number */
-#define b_rrrrrrrr(x) b_x((x), 0, 8) /* register number */
-
-/* for 'reg'/'assigned-addresses' OF properties */
-#define RESOURCE_CELLS_SIZE 2
-#define RESOURCE_CELLS_ADDRESS 3
-
-typedef struct ResourceFields {
- uint32_t phys_hi;
- uint32_t phys_mid;
- uint32_t phys_lo;
- uint32_t size_hi;
- uint32_t size_lo;
-} QEMU_PACKED ResourceFields;
-
-typedef struct ResourceProps {
- ResourceFields reg[8];
- ResourceFields assigned[7];
- uint32_t reg_len;
- uint32_t assigned_len;
-} ResourceProps;
-
-/* fill in the 'reg'/'assigned-resources' OF properties for
- * a PCI device. 'reg' describes resource requirements for a
- * device's IO/MEM regions, 'assigned-addresses' describes the
- * actual resource assignments.
- *
- * the properties are arrays of ('phys-addr', 'size') pairs describing
- * the addressable regions of the PCI device, where 'phys-addr' is a
- * RESOURCE_CELLS_ADDRESS-tuple of 32-bit integers corresponding to
- * (phys.hi, phys.mid, phys.lo), and 'size' is a
- * RESOURCE_CELLS_SIZE-tuple corresponding to (size.hi, size.lo).
- *
- * phys.hi = 0xYYXXXXZZ, where:
- * 0xYY = npt000ss
- * ||| |
- * ||| +-- space code
- * ||| |
- * ||| + 00 if configuration space
- * ||| + 01 if IO region,
- * ||| + 10 if 32-bit MEM region
- * ||| + 11 if 64-bit MEM region
- * |||
- * ||+------ for non-relocatable IO: 1 if aliased
- * || for relocatable IO: 1 if below 64KB
- * || for MEM: 1 if below 1MB
- * |+------- 1 if region is prefetchable
- * +-------- 1 if region is non-relocatable
- * 0xXXXX = bbbbbbbb dddddfff, encoding bus, slot, and function
- * bits respectively
- * 0xZZ = rrrrrrrr, the register number of the BAR corresponding
- * to the region
- *
- * phys.mid and phys.lo correspond respectively to the hi/lo portions
- * of the actual address of the region.
- *
- * how the phys-addr/size values are used differ slightly between
- * 'reg' and 'assigned-addresses' properties. namely, 'reg' has
- * an additional description for the config space region of the
- * device, and in the case of QEMU has n=0 and phys.mid=phys.lo=0
- * to describe the region as relocatable, with an address-mapping
- * that corresponds directly to the PHB's address space for the
- * resource. 'assigned-addresses' always has n=1 set with an absolute
- * address assigned for the resource. in general, 'assigned-addresses'
- * won't be populated, since addresses for PCI devices are generally
- * unmapped initially and left to the guest to assign.
- *
- * note also that addresses defined in these properties are, at least
- * for PAPR guests, relative to the PHBs IO/MEM windows, and
- * correspond directly to the addresses in the BARs.
- *
- * in accordance with PCI Bus Binding to Open Firmware,
- * IEEE Std 1275-1994, section 4.1.1, as implemented by PAPR+ v2.7,
- * Appendix C.
- */
-static void populate_resource_props(PCIDevice *d, ResourceProps *rp)
-{
- int bus_num = pci_bus_num(PCI_BUS(qdev_get_parent_bus(DEVICE(d))));
- uint32_t dev_id = (b_bbbbbbbb(bus_num) |
- b_ddddd(PCI_SLOT(d->devfn)) |
- b_fff(PCI_FUNC(d->devfn)));
- ResourceFields *reg, *assigned;
- int i, reg_idx = 0, assigned_idx = 0;
-
- /* config space region */
- reg = &rp->reg[reg_idx++];
- reg->phys_hi = cpu_to_be32(dev_id);
- reg->phys_mid = 0;
- reg->phys_lo = 0;
- reg->size_hi = 0;
- reg->size_lo = 0;
-
- for (i = 0; i < PCI_NUM_REGIONS; i++) {
- if (!d->io_regions[i].size) {
- continue;
- }
-
- reg = &rp->reg[reg_idx++];
-
- reg->phys_hi = cpu_to_be32(dev_id | b_rrrrrrrr(pci_bar(d, i)));
- if (d->io_regions[i].type & PCI_BASE_ADDRESS_SPACE_IO) {
- reg->phys_hi |= cpu_to_be32(b_ss(1));
- } else if (d->io_regions[i].type & PCI_BASE_ADDRESS_MEM_TYPE_64) {
- reg->phys_hi |= cpu_to_be32(b_ss(3));
- } else {
- reg->phys_hi |= cpu_to_be32(b_ss(2));
- }
- reg->phys_mid = 0;
- reg->phys_lo = 0;
- reg->size_hi = cpu_to_be32(d->io_regions[i].size >> 32);
- reg->size_lo = cpu_to_be32(d->io_regions[i].size);
-
- if (d->io_regions[i].addr == PCI_BAR_UNMAPPED) {
- continue;
- }
-
- assigned = &rp->assigned[assigned_idx++];
- assigned->phys_hi = cpu_to_be32(reg->phys_hi | b_n(1));
- assigned->phys_mid = cpu_to_be32(d->io_regions[i].addr >> 32);
- assigned->phys_lo = cpu_to_be32(d->io_regions[i].addr);
- assigned->size_hi = reg->size_hi;
- assigned->size_lo = reg->size_lo;
- }
-
- rp->reg_len = reg_idx * sizeof(ResourceFields);
- rp->assigned_len = assigned_idx * sizeof(ResourceFields);
-}
-
-static uint32_t spapr_phb_get_pci_drc_index(sPAPRPHBState *phb,
- PCIDevice *pdev);
-
-static int spapr_populate_pci_child_dt(PCIDevice *dev, void *fdt, int offset,
- sPAPRPHBState *sphb)
-{
- ResourceProps rp;
- bool is_bridge = false;
- int pci_status, err;
- char *buf = NULL;
- uint32_t drc_index = spapr_phb_get_pci_drc_index(sphb, dev);
- uint32_t max_msi, max_msix;
-
- if (pci_default_read_config(dev, PCI_HEADER_TYPE, 1) ==
- PCI_HEADER_TYPE_BRIDGE) {
- is_bridge = true;
- }
-
- /* in accordance with PAPR+ v2.7 13.6.3, Table 181 */
- _FDT(fdt_setprop_cell(fdt, offset, "vendor-id",
- pci_default_read_config(dev, PCI_VENDOR_ID, 2)));
- _FDT(fdt_setprop_cell(fdt, offset, "device-id",
- pci_default_read_config(dev, PCI_DEVICE_ID, 2)));
- _FDT(fdt_setprop_cell(fdt, offset, "revision-id",
- pci_default_read_config(dev, PCI_REVISION_ID, 1)));
- _FDT(fdt_setprop_cell(fdt, offset, "class-code",
- pci_default_read_config(dev, PCI_CLASS_PROG, 3)));
- if (pci_default_read_config(dev, PCI_INTERRUPT_PIN, 1)) {
- _FDT(fdt_setprop_cell(fdt, offset, "interrupts",
- pci_default_read_config(dev, PCI_INTERRUPT_PIN, 1)));
- }
-
- if (!is_bridge) {
- _FDT(fdt_setprop_cell(fdt, offset, "min-grant",
- pci_default_read_config(dev, PCI_MIN_GNT, 1)));
- _FDT(fdt_setprop_cell(fdt, offset, "max-latency",
- pci_default_read_config(dev, PCI_MAX_LAT, 1)));
- }
-
- if (pci_default_read_config(dev, PCI_SUBSYSTEM_ID, 2)) {
- _FDT(fdt_setprop_cell(fdt, offset, "subsystem-id",
- pci_default_read_config(dev, PCI_SUBSYSTEM_ID, 2)));
- }
-
- if (pci_default_read_config(dev, PCI_SUBSYSTEM_VENDOR_ID, 2)) {
- _FDT(fdt_setprop_cell(fdt, offset, "subsystem-vendor-id",
- pci_default_read_config(dev, PCI_SUBSYSTEM_VENDOR_ID, 2)));
- }
-
- _FDT(fdt_setprop_cell(fdt, offset, "cache-line-size",
- pci_default_read_config(dev, PCI_CACHE_LINE_SIZE, 1)));
-
- /* the following fdt cells are masked off the pci status register */
- pci_status = pci_default_read_config(dev, PCI_STATUS, 2);
- _FDT(fdt_setprop_cell(fdt, offset, "devsel-speed",
- PCI_STATUS_DEVSEL_MASK & pci_status));
-
- if (pci_status & PCI_STATUS_FAST_BACK) {
- _FDT(fdt_setprop(fdt, offset, "fast-back-to-back", NULL, 0));
- }
- if (pci_status & PCI_STATUS_66MHZ) {
- _FDT(fdt_setprop(fdt, offset, "66mhz-capable", NULL, 0));
- }
- if (pci_status & PCI_STATUS_UDF) {
- _FDT(fdt_setprop(fdt, offset, "udf-supported", NULL, 0));
- }
-
- /* NOTE: this is normally generated by firmware via path/unit name,
- * but in our case we must set it manually since it does not get
- * processed by OF beforehand
- */
- _FDT(fdt_setprop_string(fdt, offset, "name", "pci"));
- buf = spapr_phb_get_loc_code(sphb, dev);
- if (!buf) {
- error_report("Failed setting the ibm,loc-code");
- return -1;
- }
-
- err = fdt_setprop_string(fdt, offset, "ibm,loc-code", buf);
- g_free(buf);
- if (err < 0) {
- return err;
- }
-
- if (drc_index) {
- _FDT(fdt_setprop_cell(fdt, offset, "ibm,my-drc-index", drc_index));
- }
-
- _FDT(fdt_setprop_cell(fdt, offset, "#address-cells",
- RESOURCE_CELLS_ADDRESS));
- _FDT(fdt_setprop_cell(fdt, offset, "#size-cells",
- RESOURCE_CELLS_SIZE));
-
- max_msi = msi_nr_vectors_allocated(dev);
- if (max_msi) {
- _FDT(fdt_setprop_cell(fdt, offset, "ibm,req#msi", max_msi));
- }
- max_msix = dev->msix_entries_nr;
- if (max_msix) {
- _FDT(fdt_setprop_cell(fdt, offset, "ibm,req#msi-x", max_msix));
- }
-
- populate_resource_props(dev, &rp);
- _FDT(fdt_setprop(fdt, offset, "reg", (uint8_t *)rp.reg, rp.reg_len));
- _FDT(fdt_setprop(fdt, offset, "assigned-addresses",
- (uint8_t *)rp.assigned, rp.assigned_len));
-
- return 0;
-}
-
-/* create OF node for pci device and required OF DT properties */
-static int spapr_create_pci_child_dt(sPAPRPHBState *phb, PCIDevice *dev,
- void *fdt, int node_offset)
-{
- int offset, ret;
- int slot = PCI_SLOT(dev->devfn);
- int func = PCI_FUNC(dev->devfn);
- char nodename[FDT_NAME_MAX];
-
- if (func != 0) {
- snprintf(nodename, FDT_NAME_MAX, "pci@%x,%x", slot, func);
- } else {
- snprintf(nodename, FDT_NAME_MAX, "pci@%x", slot);
- }
- offset = fdt_add_subnode(fdt, node_offset, nodename);
- ret = spapr_populate_pci_child_dt(dev, fdt, offset, phb);
-
- g_assert(!ret);
- if (ret) {
- return 0;
- }
- return offset;
-}
-
-static void spapr_phb_add_pci_device(sPAPRDRConnector *drc,
- sPAPRPHBState *phb,
- PCIDevice *pdev,
- Error **errp)
-{
- sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
- DeviceState *dev = DEVICE(pdev);
- void *fdt = NULL;
- int fdt_start_offset = 0, fdt_size;
-
- if (object_dynamic_cast(OBJECT(pdev), "vfio-pci")) {
- sPAPRTCETable *tcet = spapr_tce_find_by_liobn(phb->dma_liobn);
-
- spapr_tce_set_need_vfio(tcet, true);
- }
-
- if (dev->hotplugged) {
- fdt = create_device_tree(&fdt_size);
- fdt_start_offset = spapr_create_pci_child_dt(phb, pdev, fdt, 0);
- if (!fdt_start_offset) {
- error_setg(errp, "Failed to create pci child device tree node");
- goto out;
- }
- }
-
- drck->attach(drc, DEVICE(pdev),
- fdt, fdt_start_offset, !dev->hotplugged, errp);
-out:
- if (*errp) {
- g_free(fdt);
- }
-}
-
-static void spapr_phb_remove_pci_device_cb(DeviceState *dev, void *opaque)
-{
- /* some version guests do not wait for completion of a device
- * cleanup (generally done asynchronously by the kernel) before
- * signaling to QEMU that the device is safe, but instead sleep
- * for some 'safe' period of time. unfortunately on a busy host
- * this sleep isn't guaranteed to be long enough, resulting in
- * bad things like IRQ lines being left asserted during final
- * device removal. to deal with this we call reset just prior
- * to finalizing the device, which will put the device back into
- * an 'idle' state, as the device cleanup code expects.
- */
- pci_device_reset(PCI_DEVICE(dev));
- object_unparent(OBJECT(dev));
-}
-
-static void spapr_phb_remove_pci_device(sPAPRDRConnector *drc,
- sPAPRPHBState *phb,
- PCIDevice *pdev,
- Error **errp)
-{
- sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
-
- drck->detach(drc, DEVICE(pdev), spapr_phb_remove_pci_device_cb, phb, errp);
-}
-
-static sPAPRDRConnector *spapr_phb_get_pci_func_drc(sPAPRPHBState *phb,
- uint32_t busnr,
- int32_t devfn)
-{
- return spapr_dr_connector_by_id(SPAPR_DR_CONNECTOR_TYPE_PCI,
- (phb->index << 16) |
- (busnr << 8) |
- devfn);
-}
-
-static sPAPRDRConnector *spapr_phb_get_pci_drc(sPAPRPHBState *phb,
- PCIDevice *pdev)
-{
- uint32_t busnr = pci_bus_num(PCI_BUS(qdev_get_parent_bus(DEVICE(pdev))));
- return spapr_phb_get_pci_func_drc(phb, busnr, pdev->devfn);
-}
-
-static uint32_t spapr_phb_get_pci_drc_index(sPAPRPHBState *phb,
- PCIDevice *pdev)
-{
- sPAPRDRConnector *drc = spapr_phb_get_pci_drc(phb, pdev);
- sPAPRDRConnectorClass *drck;
-
- if (!drc) {
- return 0;
- }
-
- drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
- return drck->get_index(drc);
-}
-
-static void spapr_phb_hot_plug_child(HotplugHandler *plug_handler,
- DeviceState *plugged_dev, Error **errp)
-{
- sPAPRPHBState *phb = SPAPR_PCI_HOST_BRIDGE(DEVICE(plug_handler));
- PCIDevice *pdev = PCI_DEVICE(plugged_dev);
- sPAPRDRConnector *drc = spapr_phb_get_pci_drc(phb, pdev);
- Error *local_err = NULL;
- PCIBus *bus = PCI_BUS(qdev_get_parent_bus(DEVICE(pdev)));
- uint32_t slotnr = PCI_SLOT(pdev->devfn);
-
- /* if DR is disabled we don't need to do anything in the case of
- * hotplug or coldplug callbacks
- */
- if (!phb->dr_enabled) {
- /* if this is a hotplug operation initiated by the user
- * we need to let them know it's not enabled
- */
- if (plugged_dev->hotplugged) {
- error_setg(errp, QERR_BUS_NO_HOTPLUG,
- object_get_typename(OBJECT(phb)));
- }
- return;
- }
-
- g_assert(drc);
-
- /* Following the QEMU convention used for PCIe multifunction
- * hotplug, we do not allow functions to be hotplugged to a
- * slot that already has function 0 present
- */
- if (plugged_dev->hotplugged && bus->devices[PCI_DEVFN(slotnr, 0)] &&
- PCI_FUNC(pdev->devfn) != 0) {
- error_setg(errp, "PCI: slot %d function 0 already ocuppied by %s,"
- " additional functions can no longer be exposed to guest.",
- slotnr, bus->devices[PCI_DEVFN(slotnr, 0)]->name);
- return;
- }
-
- spapr_phb_add_pci_device(drc, phb, pdev, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
-
- /* If this is function 0, signal hotplug for all the device functions.
- * Otherwise defer sending the hotplug event.
- */
- if (plugged_dev->hotplugged && PCI_FUNC(pdev->devfn) == 0) {
- int i;
-
- for (i = 0; i < 8; i++) {
- sPAPRDRConnector *func_drc;
- sPAPRDRConnectorClass *func_drck;
- sPAPRDREntitySense state;
-
- func_drc = spapr_phb_get_pci_func_drc(phb, pci_bus_num(bus),
- PCI_DEVFN(slotnr, i));
- func_drck = SPAPR_DR_CONNECTOR_GET_CLASS(func_drc);
- func_drck->entity_sense(func_drc, &state);
-
- if (state == SPAPR_DR_ENTITY_SENSE_PRESENT) {
- spapr_hotplug_req_add_by_index(func_drc);
- }
- }
- }
-}
-
-static void spapr_phb_hot_unplug_child(HotplugHandler *plug_handler,
- DeviceState *plugged_dev, Error **errp)
-{
- sPAPRPHBState *phb = SPAPR_PCI_HOST_BRIDGE(DEVICE(plug_handler));
- PCIDevice *pdev = PCI_DEVICE(plugged_dev);
- sPAPRDRConnectorClass *drck;
- sPAPRDRConnector *drc = spapr_phb_get_pci_drc(phb, pdev);
- Error *local_err = NULL;
-
- if (!phb->dr_enabled) {
- error_setg(errp, QERR_BUS_NO_HOTPLUG,
- object_get_typename(OBJECT(phb)));
- return;
- }
-
- g_assert(drc);
-
- drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
- if (!drck->release_pending(drc)) {
- PCIBus *bus = PCI_BUS(qdev_get_parent_bus(DEVICE(pdev)));
- uint32_t slotnr = PCI_SLOT(pdev->devfn);
- sPAPRDRConnector *func_drc;
- sPAPRDRConnectorClass *func_drck;
- sPAPRDREntitySense state;
- int i;
-
- /* ensure any other present functions are pending unplug */
- if (PCI_FUNC(pdev->devfn) == 0) {
- for (i = 1; i < 8; i++) {
- func_drc = spapr_phb_get_pci_func_drc(phb, pci_bus_num(bus),
- PCI_DEVFN(slotnr, i));
- func_drck = SPAPR_DR_CONNECTOR_GET_CLASS(func_drc);
- func_drck->entity_sense(func_drc, &state);
- if (state == SPAPR_DR_ENTITY_SENSE_PRESENT
- && !func_drck->release_pending(func_drc)) {
- error_setg(errp,
- "PCI: slot %d, function %d still present. "
- "Must unplug all non-0 functions first.",
- slotnr, i);
- return;
- }
- }
- }
-
- spapr_phb_remove_pci_device(drc, phb, pdev, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
-
- /* if this isn't func 0, defer unplug event. otherwise signal removal
- * for all present functions
- */
- if (PCI_FUNC(pdev->devfn) == 0) {
- for (i = 7; i >= 0; i--) {
- func_drc = spapr_phb_get_pci_func_drc(phb, pci_bus_num(bus),
- PCI_DEVFN(slotnr, i));
- func_drck = SPAPR_DR_CONNECTOR_GET_CLASS(func_drc);
- func_drck->entity_sense(func_drc, &state);
- if (state == SPAPR_DR_ENTITY_SENSE_PRESENT) {
- spapr_hotplug_req_remove_by_index(func_drc);
- }
- }
- }
- }
-}
-
-static void spapr_phb_realize(DeviceState *dev, Error **errp)
-{
- sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
- SysBusDevice *s = SYS_BUS_DEVICE(dev);
- sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(s);
- PCIHostState *phb = PCI_HOST_BRIDGE(s);
- char *namebuf;
- int i;
- PCIBus *bus;
- uint64_t msi_window_size = 4096;
- sPAPRTCETable *tcet;
- uint32_t nb_table;
-
- if (sphb->index != (uint32_t)-1) {
- hwaddr windows_base;
-
- if ((sphb->buid != (uint64_t)-1) || (sphb->dma_liobn != (uint32_t)-1)
- || (sphb->mem_win_addr != (hwaddr)-1)
- || (sphb->io_win_addr != (hwaddr)-1)) {
- error_setg(errp, "Either \"index\" or other parameters must"
- " be specified for PAPR PHB, not both");
- return;
- }
-
- if (sphb->index > SPAPR_PCI_MAX_INDEX) {
- error_setg(errp, "\"index\" for PAPR PHB is too large (max %u)",
- SPAPR_PCI_MAX_INDEX);
- return;
- }
-
- sphb->buid = SPAPR_PCI_BASE_BUID + sphb->index;
- sphb->dma_liobn = SPAPR_PCI_LIOBN(sphb->index, 0);
-
- windows_base = SPAPR_PCI_WINDOW_BASE
- + sphb->index * SPAPR_PCI_WINDOW_SPACING;
- sphb->mem_win_addr = windows_base + SPAPR_PCI_MMIO_WIN_OFF;
- sphb->io_win_addr = windows_base + SPAPR_PCI_IO_WIN_OFF;
- }
-
- if (sphb->buid == (uint64_t)-1) {
- error_setg(errp, "BUID not specified for PHB");
- return;
- }
-
- if (sphb->dma_liobn == (uint32_t)-1) {
- error_setg(errp, "LIOBN not specified for PHB");
- return;
- }
-
- if (sphb->mem_win_addr == (hwaddr)-1) {
- error_setg(errp, "Memory window address not specified for PHB");
- return;
- }
-
- if (sphb->io_win_addr == (hwaddr)-1) {
- error_setg(errp, "IO window address not specified for PHB");
- return;
- }
-
- if (spapr_pci_find_phb(spapr, sphb->buid)) {
- error_setg(errp, "PCI host bridges must have unique BUIDs");
- return;
- }
-
- sphb->dtbusname = g_strdup_printf("pci@%" PRIx64, sphb->buid);
-
- namebuf = alloca(strlen(sphb->dtbusname) + 32);
-
- /* Initialize memory regions */
- sprintf(namebuf, "%s.mmio", sphb->dtbusname);
- memory_region_init(&sphb->memspace, OBJECT(sphb), namebuf, UINT64_MAX);
-
- sprintf(namebuf, "%s.mmio-alias", sphb->dtbusname);
- memory_region_init_alias(&sphb->memwindow, OBJECT(sphb),
- namebuf, &sphb->memspace,
- SPAPR_PCI_MEM_WIN_BUS_OFFSET, sphb->mem_win_size);
- memory_region_add_subregion(get_system_memory(), sphb->mem_win_addr,
- &sphb->memwindow);
-
- /* Initialize IO regions */
- sprintf(namebuf, "%s.io", sphb->dtbusname);
- memory_region_init(&sphb->iospace, OBJECT(sphb),
- namebuf, SPAPR_PCI_IO_WIN_SIZE);
-
- sprintf(namebuf, "%s.io-alias", sphb->dtbusname);
- memory_region_init_alias(&sphb->iowindow, OBJECT(sphb), namebuf,
- &sphb->iospace, 0, SPAPR_PCI_IO_WIN_SIZE);
- memory_region_add_subregion(get_system_memory(), sphb->io_win_addr,
- &sphb->iowindow);
-
- bus = pci_register_bus(dev, NULL,
- pci_spapr_set_irq, pci_spapr_map_irq, sphb,
- &sphb->memspace, &sphb->iospace,
- PCI_DEVFN(0, 0), PCI_NUM_PINS, TYPE_PCI_BUS);
- phb->bus = bus;
- qbus_set_hotplug_handler(BUS(phb->bus), DEVICE(sphb), NULL);
-
- /*
- * Initialize PHB address space.
- * By default there will be at least one subregion for default
- * 32bit DMA window.
- * Later the guest might want to create another DMA window
- * which will become another memory subregion.
- */
- sprintf(namebuf, "%s.iommu-root", sphb->dtbusname);
-
- memory_region_init(&sphb->iommu_root, OBJECT(sphb),
- namebuf, UINT64_MAX);
- address_space_init(&sphb->iommu_as, &sphb->iommu_root,
- sphb->dtbusname);
-
- /*
- * As MSI/MSIX interrupts trigger by writing at MSI/MSIX vectors,
- * we need to allocate some memory to catch those writes coming
- * from msi_notify()/msix_notify().
- * As MSIMessage:addr is going to be the same and MSIMessage:data
- * is going to be a VIRQ number, 4 bytes of the MSI MR will only
- * be used.
- *
- * For KVM we want to ensure that this memory is a full page so that
- * our memory slot is of page size granularity.
- */
-#ifdef CONFIG_KVM
- if (kvm_enabled()) {
- msi_window_size = getpagesize();
- }
-#endif
-
- memory_region_init_io(&sphb->msiwindow, NULL, &spapr_msi_ops, spapr,
- "msi", msi_window_size);
- memory_region_add_subregion(&sphb->iommu_root, SPAPR_PCI_MSI_WINDOW,
- &sphb->msiwindow);
-
- pci_setup_iommu(bus, spapr_pci_dma_iommu, sphb);
-
- pci_bus_set_route_irq_fn(bus, spapr_route_intx_pin_to_irq);
-
- QLIST_INSERT_HEAD(&spapr->phbs, sphb, list);
-
- /* Initialize the LSI table */
- for (i = 0; i < PCI_NUM_PINS; i++) {
- uint32_t irq;
- Error *local_err = NULL;
-
- irq = xics_alloc_block(spapr->icp, 0, 1, true, false, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- error_prepend(errp, "can't allocate LSIs: ");
- return;
- }
-
- sphb->lsi_table[i].irq = irq;
- }
-
- /* allocate connectors for child PCI devices */
- if (sphb->dr_enabled) {
- for (i = 0; i < PCI_SLOT_MAX * 8; i++) {
- spapr_dr_connector_new(OBJECT(phb),
- SPAPR_DR_CONNECTOR_TYPE_PCI,
- (sphb->index << 16) | i);
- }
- }
-
- nb_table = sphb->dma_win_size >> SPAPR_TCE_PAGE_SHIFT;
- tcet = spapr_tce_new_table(DEVICE(sphb), sphb->dma_liobn,
- 0, SPAPR_TCE_PAGE_SHIFT, nb_table, false);
- if (!tcet) {
- error_setg(errp, "Unable to create TCE table for %s",
- sphb->dtbusname);
- return;
- }
-
- /* Register default 32bit DMA window */
- memory_region_add_subregion(&sphb->iommu_root, sphb->dma_win_addr,
- spapr_tce_get_iommu(tcet));
-
- sphb->msi = g_hash_table_new_full(g_int_hash, g_int_equal, g_free, g_free);
-}
-
-static int spapr_phb_children_reset(Object *child, void *opaque)
-{
- DeviceState *dev = (DeviceState *) object_dynamic_cast(child, TYPE_DEVICE);
-
- if (dev) {
- device_reset(dev);
- }
-
- return 0;
-}
-
-static void spapr_phb_reset(DeviceState *qdev)
-{
- /* Reset the IOMMU state */
- object_child_foreach(OBJECT(qdev), spapr_phb_children_reset, NULL);
-
- if (spapr_phb_eeh_available(SPAPR_PCI_HOST_BRIDGE(qdev))) {
- spapr_phb_vfio_reset(qdev);
- }
-}
-
-static Property spapr_phb_properties[] = {
- DEFINE_PROP_UINT32("index", sPAPRPHBState, index, -1),
- DEFINE_PROP_UINT64("buid", sPAPRPHBState, buid, -1),
- DEFINE_PROP_UINT32("liobn", sPAPRPHBState, dma_liobn, -1),
- DEFINE_PROP_UINT64("mem_win_addr", sPAPRPHBState, mem_win_addr, -1),
- DEFINE_PROP_UINT64("mem_win_size", sPAPRPHBState, mem_win_size,
- SPAPR_PCI_MMIO_WIN_SIZE),
- DEFINE_PROP_UINT64("io_win_addr", sPAPRPHBState, io_win_addr, -1),
- DEFINE_PROP_UINT64("io_win_size", sPAPRPHBState, io_win_size,
- SPAPR_PCI_IO_WIN_SIZE),
- DEFINE_PROP_BOOL("dynamic-reconfiguration", sPAPRPHBState, dr_enabled,
- true),
- /* Default DMA window is 0..1GB */
- DEFINE_PROP_UINT64("dma_win_addr", sPAPRPHBState, dma_win_addr, 0),
- DEFINE_PROP_UINT64("dma_win_size", sPAPRPHBState, dma_win_size, 0x40000000),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static const VMStateDescription vmstate_spapr_pci_lsi = {
- .name = "spapr_pci/lsi",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32_EQUAL(irq, struct spapr_pci_lsi),
-
- VMSTATE_END_OF_LIST()
- },
-};
-
-static const VMStateDescription vmstate_spapr_pci_msi = {
- .name = "spapr_pci/msi",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField []) {
- VMSTATE_UINT32(key, spapr_pci_msi_mig),
- VMSTATE_UINT32(value.first_irq, spapr_pci_msi_mig),
- VMSTATE_UINT32(value.num, spapr_pci_msi_mig),
- VMSTATE_END_OF_LIST()
- },
-};
-
-static void spapr_pci_pre_save(void *opaque)
-{
- sPAPRPHBState *sphb = opaque;
- GHashTableIter iter;
- gpointer key, value;
- int i;
-
- g_free(sphb->msi_devs);
- sphb->msi_devs = NULL;
- sphb->msi_devs_num = g_hash_table_size(sphb->msi);
- if (!sphb->msi_devs_num) {
- return;
- }
- sphb->msi_devs = g_malloc(sphb->msi_devs_num * sizeof(spapr_pci_msi_mig));
-
- g_hash_table_iter_init(&iter, sphb->msi);
- for (i = 0; g_hash_table_iter_next(&iter, &key, &value); ++i) {
- sphb->msi_devs[i].key = *(uint32_t *) key;
- sphb->msi_devs[i].value = *(spapr_pci_msi *) value;
- }
-}
-
-static int spapr_pci_post_load(void *opaque, int version_id)
-{
- sPAPRPHBState *sphb = opaque;
- gpointer key, value;
- int i;
-
- for (i = 0; i < sphb->msi_devs_num; ++i) {
- key = g_memdup(&sphb->msi_devs[i].key,
- sizeof(sphb->msi_devs[i].key));
- value = g_memdup(&sphb->msi_devs[i].value,
- sizeof(sphb->msi_devs[i].value));
- g_hash_table_insert(sphb->msi, key, value);
- }
- g_free(sphb->msi_devs);
- sphb->msi_devs = NULL;
- sphb->msi_devs_num = 0;
-
- return 0;
-}
-
-static const VMStateDescription vmstate_spapr_pci = {
- .name = "spapr_pci",
- .version_id = 2,
- .minimum_version_id = 2,
- .pre_save = spapr_pci_pre_save,
- .post_load = spapr_pci_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_UINT64_EQUAL(buid, sPAPRPHBState),
- VMSTATE_UINT32_EQUAL(dma_liobn, sPAPRPHBState),
- VMSTATE_UINT64_EQUAL(mem_win_addr, sPAPRPHBState),
- VMSTATE_UINT64_EQUAL(mem_win_size, sPAPRPHBState),
- VMSTATE_UINT64_EQUAL(io_win_addr, sPAPRPHBState),
- VMSTATE_UINT64_EQUAL(io_win_size, sPAPRPHBState),
- VMSTATE_STRUCT_ARRAY(lsi_table, sPAPRPHBState, PCI_NUM_PINS, 0,
- vmstate_spapr_pci_lsi, struct spapr_pci_lsi),
- VMSTATE_INT32(msi_devs_num, sPAPRPHBState),
- VMSTATE_STRUCT_VARRAY_ALLOC(msi_devs, sPAPRPHBState, msi_devs_num, 0,
- vmstate_spapr_pci_msi, spapr_pci_msi_mig),
- VMSTATE_END_OF_LIST()
- },
-};
-
-static const char *spapr_phb_root_bus_path(PCIHostState *host_bridge,
- PCIBus *rootbus)
-{
- sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(host_bridge);
-
- return sphb->dtbusname;
-}
-
-static void spapr_phb_class_init(ObjectClass *klass, void *data)
-{
- PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass);
- DeviceClass *dc = DEVICE_CLASS(klass);
- HotplugHandlerClass *hp = HOTPLUG_HANDLER_CLASS(klass);
-
- hc->root_bus_path = spapr_phb_root_bus_path;
- dc->realize = spapr_phb_realize;
- dc->props = spapr_phb_properties;
- dc->reset = spapr_phb_reset;
- dc->vmsd = &vmstate_spapr_pci;
- set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
- dc->cannot_instantiate_with_device_add_yet = false;
- hp->plug = spapr_phb_hot_plug_child;
- hp->unplug = spapr_phb_hot_unplug_child;
-}
-
-static const TypeInfo spapr_phb_info = {
- .name = TYPE_SPAPR_PCI_HOST_BRIDGE,
- .parent = TYPE_PCI_HOST_BRIDGE,
- .instance_size = sizeof(sPAPRPHBState),
- .class_init = spapr_phb_class_init,
- .interfaces = (InterfaceInfo[]) {
- { TYPE_HOTPLUG_HANDLER },
- { }
- }
-};
-
-PCIHostState *spapr_create_phb(sPAPRMachineState *spapr, int index)
-{
- DeviceState *dev;
-
- dev = qdev_create(NULL, TYPE_SPAPR_PCI_HOST_BRIDGE);
- qdev_prop_set_uint32(dev, "index", index);
- qdev_init_nofail(dev);
-
- return PCI_HOST_BRIDGE(dev);
-}
-
-typedef struct sPAPRFDT {
- void *fdt;
- int node_off;
- sPAPRPHBState *sphb;
-} sPAPRFDT;
-
-static void spapr_populate_pci_devices_dt(PCIBus *bus, PCIDevice *pdev,
- void *opaque)
-{
- PCIBus *sec_bus;
- sPAPRFDT *p = opaque;
- int offset;
- sPAPRFDT s_fdt;
-
- offset = spapr_create_pci_child_dt(p->sphb, pdev, p->fdt, p->node_off);
- if (!offset) {
- error_report("Failed to create pci child device tree node");
- return;
- }
-
- if ((pci_default_read_config(pdev, PCI_HEADER_TYPE, 1) !=
- PCI_HEADER_TYPE_BRIDGE)) {
- return;
- }
-
- sec_bus = pci_bridge_get_sec_bus(PCI_BRIDGE(pdev));
- if (!sec_bus) {
- return;
- }
-
- s_fdt.fdt = p->fdt;
- s_fdt.node_off = offset;
- s_fdt.sphb = p->sphb;
- pci_for_each_device(sec_bus, pci_bus_num(sec_bus),
- spapr_populate_pci_devices_dt,
- &s_fdt);
-}
-
-static void spapr_phb_pci_enumerate_bridge(PCIBus *bus, PCIDevice *pdev,
- void *opaque)
-{
- unsigned int *bus_no = opaque;
- unsigned int primary = *bus_no;
- unsigned int subordinate = 0xff;
- PCIBus *sec_bus = NULL;
-
- if ((pci_default_read_config(pdev, PCI_HEADER_TYPE, 1) !=
- PCI_HEADER_TYPE_BRIDGE)) {
- return;
- }
-
- (*bus_no)++;
- pci_default_write_config(pdev, PCI_PRIMARY_BUS, primary, 1);
- pci_default_write_config(pdev, PCI_SECONDARY_BUS, *bus_no, 1);
- pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, *bus_no, 1);
-
- sec_bus = pci_bridge_get_sec_bus(PCI_BRIDGE(pdev));
- if (!sec_bus) {
- return;
- }
-
- pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, subordinate, 1);
- pci_for_each_device(sec_bus, pci_bus_num(sec_bus),
- spapr_phb_pci_enumerate_bridge, bus_no);
- pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, *bus_no, 1);
-}
-
-static void spapr_phb_pci_enumerate(sPAPRPHBState *phb)
-{
- PCIBus *bus = PCI_HOST_BRIDGE(phb)->bus;
- unsigned int bus_no = 0;
-
- pci_for_each_device(bus, pci_bus_num(bus),
- spapr_phb_pci_enumerate_bridge,
- &bus_no);
-
-}
-
-int spapr_populate_pci_dt(sPAPRPHBState *phb,
- uint32_t xics_phandle,
- void *fdt)
-{
- int bus_off, i, j, ret;
- char nodename[FDT_NAME_MAX];
- uint32_t bus_range[] = { cpu_to_be32(0), cpu_to_be32(0xff) };
- const uint64_t mmiosize = memory_region_size(&phb->memwindow);
- const uint64_t w32max = (1ULL << 32) - SPAPR_PCI_MEM_WIN_BUS_OFFSET;
- const uint64_t w32size = MIN(w32max, mmiosize);
- const uint64_t w64size = (mmiosize > w32size) ? (mmiosize - w32size) : 0;
- struct {
- uint32_t hi;
- uint64_t child;
- uint64_t parent;
- uint64_t size;
- } QEMU_PACKED ranges[] = {
- {
- cpu_to_be32(b_ss(1)), cpu_to_be64(0),
- cpu_to_be64(phb->io_win_addr),
- cpu_to_be64(memory_region_size(&phb->iospace)),
- },
- {
- cpu_to_be32(b_ss(2)), cpu_to_be64(SPAPR_PCI_MEM_WIN_BUS_OFFSET),
- cpu_to_be64(phb->mem_win_addr),
- cpu_to_be64(w32size),
- },
- {
- cpu_to_be32(b_ss(3)), cpu_to_be64(1ULL << 32),
- cpu_to_be64(phb->mem_win_addr + w32size),
- cpu_to_be64(w64size)
- },
- };
- const unsigned sizeof_ranges = (w64size ? 3 : 2) * sizeof(ranges[0]);
- uint64_t bus_reg[] = { cpu_to_be64(phb->buid), 0 };
- uint32_t interrupt_map_mask[] = {
- cpu_to_be32(b_ddddd(-1)|b_fff(0)), 0x0, 0x0, cpu_to_be32(-1)};
- uint32_t interrupt_map[PCI_SLOT_MAX * PCI_NUM_PINS][7];
- sPAPRTCETable *tcet;
- PCIBus *bus = PCI_HOST_BRIDGE(phb)->bus;
- sPAPRFDT s_fdt;
-
- /* Start populating the FDT */
- snprintf(nodename, FDT_NAME_MAX, "pci@%" PRIx64, phb->buid);
- bus_off = fdt_add_subnode(fdt, 0, nodename);
- if (bus_off < 0) {
- return bus_off;
- }
-
- /* Write PHB properties */
- _FDT(fdt_setprop_string(fdt, bus_off, "device_type", "pci"));
- _FDT(fdt_setprop_string(fdt, bus_off, "compatible", "IBM,Logical_PHB"));
- _FDT(fdt_setprop_cell(fdt, bus_off, "#address-cells", 0x3));
- _FDT(fdt_setprop_cell(fdt, bus_off, "#size-cells", 0x2));
- _FDT(fdt_setprop_cell(fdt, bus_off, "#interrupt-cells", 0x1));
- _FDT(fdt_setprop(fdt, bus_off, "used-by-rtas", NULL, 0));
- _FDT(fdt_setprop(fdt, bus_off, "bus-range", &bus_range, sizeof(bus_range)));
- _FDT(fdt_setprop(fdt, bus_off, "ranges", &ranges, sizeof_ranges));
- _FDT(fdt_setprop(fdt, bus_off, "reg", &bus_reg, sizeof(bus_reg)));
- _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pci-config-space-type", 0x1));
- _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pe-total-#msi", XICS_IRQS));
-
- /* Build the interrupt-map, this must matches what is done
- * in pci_spapr_map_irq
- */
- _FDT(fdt_setprop(fdt, bus_off, "interrupt-map-mask",
- &interrupt_map_mask, sizeof(interrupt_map_mask)));
- for (i = 0; i < PCI_SLOT_MAX; i++) {
- for (j = 0; j < PCI_NUM_PINS; j++) {
- uint32_t *irqmap = interrupt_map[i*PCI_NUM_PINS + j];
- int lsi_num = pci_spapr_swizzle(i, j);
-
- irqmap[0] = cpu_to_be32(b_ddddd(i)|b_fff(0));
- irqmap[1] = 0;
- irqmap[2] = 0;
- irqmap[3] = cpu_to_be32(j+1);
- irqmap[4] = cpu_to_be32(xics_phandle);
- irqmap[5] = cpu_to_be32(phb->lsi_table[lsi_num].irq);
- irqmap[6] = cpu_to_be32(0x8);
- }
- }
- /* Write interrupt map */
- _FDT(fdt_setprop(fdt, bus_off, "interrupt-map", &interrupt_map,
- sizeof(interrupt_map)));
-
- tcet = spapr_tce_find_by_liobn(SPAPR_PCI_LIOBN(phb->index, 0));
- if (!tcet) {
- return -1;
- }
- spapr_dma_dt(fdt, bus_off, "ibm,dma-window",
- tcet->liobn, tcet->bus_offset,
- tcet->nb_table << tcet->page_shift);
-
- /* Walk the bridges and program the bus numbers*/
- spapr_phb_pci_enumerate(phb);
- _FDT(fdt_setprop_cell(fdt, bus_off, "qemu,phb-enumerated", 0x1));
-
- /* Populate tree nodes with PCI devices attached */
- s_fdt.fdt = fdt;
- s_fdt.node_off = bus_off;
- s_fdt.sphb = phb;
- pci_for_each_device(bus, pci_bus_num(bus),
- spapr_populate_pci_devices_dt,
- &s_fdt);
-
- ret = spapr_drc_populate_dt(fdt, bus_off, OBJECT(phb),
- SPAPR_DR_CONNECTOR_TYPE_PCI);
- if (ret) {
- return ret;
- }
-
- return 0;
-}
-
-void spapr_pci_rtas_init(void)
-{
- spapr_rtas_register(RTAS_READ_PCI_CONFIG, "read-pci-config",
- rtas_read_pci_config);
- spapr_rtas_register(RTAS_WRITE_PCI_CONFIG, "write-pci-config",
- rtas_write_pci_config);
- spapr_rtas_register(RTAS_IBM_READ_PCI_CONFIG, "ibm,read-pci-config",
- rtas_ibm_read_pci_config);
- spapr_rtas_register(RTAS_IBM_WRITE_PCI_CONFIG, "ibm,write-pci-config",
- rtas_ibm_write_pci_config);
- if (msi_nonbroken) {
- spapr_rtas_register(RTAS_IBM_QUERY_INTERRUPT_SOURCE_NUMBER,
- "ibm,query-interrupt-source-number",
- rtas_ibm_query_interrupt_source_number);
- spapr_rtas_register(RTAS_IBM_CHANGE_MSI, "ibm,change-msi",
- rtas_ibm_change_msi);
- }
-
- spapr_rtas_register(RTAS_IBM_SET_EEH_OPTION,
- "ibm,set-eeh-option",
- rtas_ibm_set_eeh_option);
- spapr_rtas_register(RTAS_IBM_GET_CONFIG_ADDR_INFO2,
- "ibm,get-config-addr-info2",
- rtas_ibm_get_config_addr_info2);
- spapr_rtas_register(RTAS_IBM_READ_SLOT_RESET_STATE2,
- "ibm,read-slot-reset-state2",
- rtas_ibm_read_slot_reset_state2);
- spapr_rtas_register(RTAS_IBM_SET_SLOT_RESET,
- "ibm,set-slot-reset",
- rtas_ibm_set_slot_reset);
- spapr_rtas_register(RTAS_IBM_CONFIGURE_PE,
- "ibm,configure-pe",
- rtas_ibm_configure_pe);
- spapr_rtas_register(RTAS_IBM_SLOT_ERROR_DETAIL,
- "ibm,slot-error-detail",
- rtas_ibm_slot_error_detail);
-}
-
-static void spapr_pci_register_types(void)
-{
- type_register_static(&spapr_phb_info);
-}
-
-type_init(spapr_pci_register_types)
-
-static int spapr_switch_one_vga(DeviceState *dev, void *opaque)
-{
- bool be = *(bool *)opaque;
-
- if (object_dynamic_cast(OBJECT(dev), "VGA")
- || object_dynamic_cast(OBJECT(dev), "secondary-vga")) {
- object_property_set_bool(OBJECT(dev), be, "big-endian-framebuffer",
- &error_abort);
- }
- return 0;
-}
-
-void spapr_pci_switch_vga(bool big_endian)
-{
- sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
- sPAPRPHBState *sphb;
-
- /*
- * For backward compatibility with existing guests, we switch
- * the endianness of the VGA controller when changing the guest
- * interrupt mode
- */
- QLIST_FOREACH(sphb, &spapr->phbs, list) {
- BusState *bus = &PCI_HOST_BRIDGE(sphb)->bus->qbus;
- qbus_walk_children(bus, spapr_switch_one_vga, NULL, NULL, NULL,
- &big_endian);
- }
-}