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HV: remove all CONFIG_PARTITION_MODE from dm/vpci code

Browse Source 
Instead of using CONFIG_PARTITION_MODE at compile time to compile in and call
the partition mode/sharing mode specific functions, always compile in all sharing
mode and partition code, then calling the corresponding functions dynamically based
on vm type (PRE_LAUNCHED_VM and SOS_VM) at runtime.

Some misra c fix:
 Add @pre for functions
 Add const to function parameters

Add ASSERT in pci_cfgdata_io_read and pci_cfgdata_io_write

Tracked-On: #2534
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
dongshen 2019-03-21 15:41:30 -07:00 committed by ACRN System Integration
parent 691468a361
commit c6a60dd29c
8 changed files with 150 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
hypervisor/Makefile
View File

@ -220,14 +220,13 @@ C_SRCS += dm/vpci/vdev.c
C_SRCS += dm/vpci/vpci.c
ifeq ($(CONFIG_PARTITION_MODE),y)
C_SRCS += dm/vmptable.c
endif
C_SRCS += dm/vpci/partition_mode.c
C_SRCS += dm/vpci/hostbridge.c
C_SRCS += dm/vpci/pci_pt.c
else
C_SRCS += dm/vpci/sharing_mode.c
C_SRCS += dm/vpci/msi.c
C_SRCS += dm/vpci/msix.c
endif
C_SRCS += bsp/firmware_wrapper.c
C_SRCS += bsp/firmware_sbl.c

4
hypervisor/dm/vpci/msix.c
View File

@ -279,6 +279,10 @@ static void vmsix_table_rw(struct pci_vdev *vdev, struct mmio_request *mmio, uin
}
/**
* @pre io_req != NULL
* @pre handler_private_data != NULL
*/
static int32_t vmsix_table_mmio_access_handler(struct io_request *io_req, void *handler_private_data)
{
struct mmio_request *mmio = &io_req->reqs.mmio;

10
hypervisor/dm/vpci/partition_mode.c
View File

@ -137,7 +137,10 @@ void partition_mode_vpci_deinit(const struct acrn_vm *vm)
}
}
void partition_mode_cfgread(struct acrn_vpci *vpci, union pci_bdf vbdf,
/**
* @pre vpci != NULL
*/
void partition_mode_cfgread(const struct acrn_vpci *vpci, union pci_bdf vbdf,
uint32_t offset, uint32_t bytes, uint32_t *val)
{
struct pci_vdev *vdev = pci_find_vdev_by_vbdf(vpci, vbdf);
@ -156,7 +159,10 @@ void partition_mode_cfgread(struct acrn_vpci *vpci, union pci_bdf vbdf,
}
}
void partition_mode_cfgwrite(struct acrn_vpci *vpci, union pci_bdf vbdf,
/**
* @pre vpci != NULL
*/
void partition_mode_cfgwrite(const struct acrn_vpci *vpci, union pci_bdf vbdf,
uint32_t offset, uint32_t bytes, uint32_t val)
{
struct pci_vdev *vdev = pci_find_vdev_by_vbdf(vpci, vbdf);

3
hypervisor/dm/vpci/pci_priv.h
View File

@ -67,7 +67,6 @@ static inline void pci_vdev_write_cfg_u32(struct pci_vdev *vdev, uint32_t offset
vdev->cfgdata.data_32[offset >> 2U] = val;
}
#ifdef CONFIG_PARTITION_MODE
void vdev_hostbridge_init(struct pci_vdev *vdev);
int32_t vdev_hostbridge_cfgread(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t *val);
int32_t vdev_hostbridge_cfgwrite(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
@ -78,7 +77,6 @@ int32_t vdev_pt_cfgread(const struct pci_vdev *vdev, uint32_t offset, uint32_t b
int32_t vdev_pt_cfgwrite(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
void vdev_pt_deinit(const struct pci_vdev *vdev);
#else
void vmsi_init(struct pci_vdev *vdev);
int32_t vmsi_cfgread(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t *val);
int32_t vmsi_cfgwrite(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
@ -87,7 +85,6 @@ void vmsix_init(struct pci_vdev *vdev);
int32_t vmsix_cfgread(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t *val);
int32_t vmsix_cfgwrite(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
void vmsix_deinit(const struct pci_vdev *vdev);
#endif
uint32_t pci_vdev_read_cfg(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes);
void pci_vdev_write_cfg(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);

31
hypervisor/dm/vpci/pci_pt.c
View File

@ -42,6 +42,10 @@ static inline uint32_t pci_bar_base(uint32_t bar)
return bar & PCIM_BAR_MEM_BASE;
}
#if defined(HV_DEBUG)
/**
* @pre vdev != NULL
*/
static int32_t validate(const struct pci_vdev *vdev)
{
uint32_t idx;
@ -59,7 +63,13 @@ static int32_t validate(const struct pci_vdev *vdev)
return ret;
}
#endif
/**
* @pre vdev != NULL
* @pre vdev->vpci != NULL
* @pre vdev->vpci->vm != NULL
*/
void vdev_pt_init(struct pci_vdev *vdev)
{
int32_t ret;
@ -90,6 +100,11 @@ void vdev_pt_init(struct pci_vdev *vdev)
pci_pdev_write_cfg(vdev->pdev->bdf, PCIR_COMMAND, 2U, pci_command);
}
/**
* @pre vdev != NULL
* @pre vdev->vpci != NULL
* @pre vdev->vpci->vm != NULL
*/
void vdev_pt_deinit(const struct pci_vdev *vdev)
{
int32_t ret;
@ -102,6 +117,9 @@ void vdev_pt_deinit(const struct pci_vdev *vdev)
}
}
/**
* @pre vdev != NULL
*/
int32_t vdev_pt_cfgread(const struct pci_vdev *vdev, uint32_t offset,
uint32_t bytes, uint32_t *val)
{
@ -116,7 +134,12 @@ int32_t vdev_pt_cfgread(const struct pci_vdev *vdev, uint32_t offset,
return ret;
}
static void vdev_pt_remap_bar(struct pci_vdev *vdev, uint32_t idx,
/**
* @pre vdev != NULL
* @pre vdev->vpci != NULL
* @pre vdev->vpci->vm != NULL
*/
static void vdev_pt_remap_bar(const struct pci_vdev *vdev, uint32_t idx,
uint32_t new_base)
{
struct acrn_vm *vm = vdev->vpci->vm;
@ -137,6 +160,9 @@ static void vdev_pt_remap_bar(struct pci_vdev *vdev, uint32_t idx,
}
}
/**
* @pre vdev != NULL
*/
static void vdev_pt_cfgwrite_bar(struct pci_vdev *vdev, uint32_t offset,
uint32_t bytes, uint32_t new_bar_uos)
{
@ -176,6 +202,9 @@ static void vdev_pt_cfgwrite_bar(struct pci_vdev *vdev, uint32_t offset,
pci_vdev_write_cfg_u32(vdev, offset, new_bar);
}
/**
* @pre vdev != NULL
*/
int32_t vdev_pt_cfgwrite(struct pci_vdev *vdev, uint32_t offset,
uint32_t bytes, uint32_t val)
{

32
hypervisor/dm/vpci/sharing_mode.c
View File

@ -28,7 +28,6 @@
*/
#include <vm.h>
#include <errno.h>
#include <logmsg.h>
#include "pci_priv.h"
@ -100,40 +99,35 @@ static void init_vdev_for_pdev(struct pci_pdev *pdev, const void *vm)
}
}
/**
* @pre vm != NULL
* @pre is_sos_vm(vm) == true
*/
int32_t sharing_mode_vpci_init(const struct acrn_vm *vm)
{
int32_t ret = -ENODEV;
/* Build up vdev array for sos_vm */
pci_pdev_foreach(init_vdev_for_pdev, vm);
/*
* Only set up IO bitmap for SOS.
* IO/MMIO requests from non-sos_vm guests will be injected to device model.
*/
if (is_sos_vm(vm)) {
/* Build up vdev array for sos_vm */
pci_pdev_foreach(init_vdev_for_pdev, vm);
ret = 0;
}
return ret;
return 0;
}
/**
* @pre vm != NULL
* @pre vm->vpci.pci_vdev_cnt <= CONFIG_MAX_PCI_DEV_NUM
* @pre is_sos_vm(vm) == true
*/
void sharing_mode_vpci_deinit(const struct acrn_vm *vm)
{
struct pci_vdev *vdev;
uint32_t i;
if (is_sos_vm(vm)) {
for (i = 0U; i < vm->vpci.pci_vdev_cnt; i++) {
vdev = (struct pci_vdev *)&(vm->vpci.pci_vdevs[i]);
for (i = 0U; i < vm->vpci.pci_vdev_cnt; i++) {
vdev = (struct pci_vdev *)&(vm->vpci.pci_vdevs[i]);
vmsi_deinit(vdev);
vmsi_deinit(vdev);
vmsix_deinit(vdev);
}
vmsix_deinit(vdev);
}
}

113
hypervisor/dm/vpci/vpci.c
View File

@ -28,6 +28,8 @@
*/
#include <vm.h>
#include <errno.h>
#include <logmsg.h>
#include "pci_priv.h"
static void pci_cfg_clear_cache(struct pci_addr_info *pi)
@ -37,6 +39,9 @@ static void pci_cfg_clear_cache(struct pci_addr_info *pi)
pi->cached_enable = false;
}
/**
* @pre vm != NULL
*/
static uint32_t pci_cfgaddr_io_read(struct acrn_vm *vm, uint16_t addr, size_t bytes)
{
uint32_t val = ~0U;
@ -55,6 +60,9 @@ static uint32_t pci_cfgaddr_io_read(struct acrn_vm *vm, uint16_t addr, size_t by
return val;
}
/**
* @pre vm != NULL
*/
static void pci_cfgaddr_io_write(struct acrn_vm *vm, uint16_t addr, size_t bytes, uint32_t val)
{
struct acrn_vpci *vpci = &vm->vpci;
@ -82,20 +90,36 @@ static inline bool vpci_is_valid_access(uint32_t offset, uint32_t bytes)
return (vpci_is_valid_access_byte(bytes) && vpci_is_valid_access_offset(offset, bytes));
}
/**
* @pre vm != NULL
* @pre vm->vm_id < CONFIG_MAX_VM_NUM
* @pre (get_vm_config(vm->vm_id)->type == PRE_LAUNCHED_VM) || (get_vm_config(vm->vm_id)->type == SOS_VM)
*/
static uint32_t pci_cfgdata_io_read(struct acrn_vm *vm, uint16_t addr, size_t bytes)
{
struct acrn_vpci *vpci = &vm->vpci;
struct pci_addr_info *pi = &vpci->addr_info;
uint16_t offset = addr - PCI_CONFIG_DATA;
uint32_t val = ~0U;
struct acrn_vm_config *vm_config;
if (pi->cached_enable) {
if (vpci_is_valid_access(pi->cached_reg + offset, bytes)) {
#ifdef CONFIG_PARTITION_MODE
partition_mode_cfgread(vpci, pi->cached_bdf, pi->cached_reg + offset, bytes, &val);
#else
sharing_mode_cfgread(vpci, pi->cached_bdf, pi->cached_reg + offset, bytes, &val);
#endif
vm_config = get_vm_config(vm->vm_id);
switch (vm_config->type) {
case PRE_LAUNCHED_VM:
partition_mode_cfgread(vpci, pi->cached_bdf, pi->cached_reg + offset, bytes, &val);
break;
case SOS_VM:
sharing_mode_cfgread(vpci, pi->cached_bdf, pi->cached_reg + offset, bytes, &val);
break;
default:
ASSERT(false, "Error, pci_cfgdata_io_read should only be called for PRE_LAUNCHED_VM and SOS_VM");
break;
}
}
pci_cfg_clear_cache(pi);
}
@ -103,28 +127,49 @@ static uint32_t pci_cfgdata_io_read(struct acrn_vm *vm, uint16_t addr, size_t by
return val;
}
/**
* @pre vm != NULL
* @pre vm->vm_id < CONFIG_MAX_VM_NUM
* @pre (get_vm_config(vm->vm_id)->type == PRE_LAUNCHED_VM) || (get_vm_config(vm->vm_id)->type == SOS_VM)
*/
static void pci_cfgdata_io_write(struct acrn_vm *vm, uint16_t addr, size_t bytes, uint32_t val)
{
struct acrn_vpci *vpci = &vm->vpci;
struct pci_addr_info *pi = &vpci->addr_info;
uint16_t offset = addr - PCI_CONFIG_DATA;
struct acrn_vm_config *vm_config;
if (pi->cached_enable) {
if (vpci_is_valid_access(pi->cached_reg + offset, bytes)) {
#ifdef CONFIG_PARTITION_MODE
partition_mode_cfgwrite(vpci, pi->cached_bdf, pi->cached_reg + offset, bytes, val);
#else
sharing_mode_cfgwrite(vpci, pi->cached_bdf, pi->cached_reg + offset, bytes, val);
#endif
vm_config = get_vm_config(vm->vm_id);
switch (vm_config->type) {
case PRE_LAUNCHED_VM:
partition_mode_cfgwrite(vpci, pi->cached_bdf, pi->cached_reg + offset, bytes, val);
break;
case SOS_VM:
sharing_mode_cfgwrite(vpci, pi->cached_bdf, pi->cached_reg + offset, bytes, val);
break;
default:
ASSERT(false, "Error, pci_cfgdata_io_write should only be called for PRE_LAUNCHED_VM and SOS_VM");
break;
}
}
pci_cfg_clear_cache(pi);
}
}
/**
* @pre vm != NULL
* @pre vm->vm_id < CONFIG_MAX_VM_NUM
*/
void vpci_init(struct acrn_vm *vm)
{
struct acrn_vpci *vpci = &vm->vpci;
int32_t ret;
int32_t ret = -EINVAL;
struct vm_io_range pci_cfgaddr_range = {
.flags = IO_ATTR_RW,
@ -138,13 +183,24 @@ void vpci_init(struct acrn_vm *vm)
.len = 4U
};
struct acrn_vm_config *vm_config;
vpci->vm = vm;
#ifdef CONFIG_PARTITION_MODE
ret = partition_mode_vpci_init(vm);
#else
ret = sharing_mode_vpci_init(vm);
#endif
vm_config = get_vm_config(vm->vm_id);
switch (vm_config->type) {
case PRE_LAUNCHED_VM:
ret = partition_mode_vpci_init(vm);
break;
case SOS_VM:
ret = sharing_mode_vpci_init(vm);
break;
default:
/* Nothing to do for other vm types */
break;
}
if (ret == 0) {
/*
@ -161,11 +217,26 @@ void vpci_init(struct acrn_vm *vm)
}
}
/**
* @pre vm != NULL
* @pre vm->vm_id < CONFIG_MAX_VM_NUM
*/
void vpci_cleanup(const struct acrn_vm *vm)
{
#ifdef CONFIG_PARTITION_MODE
partition_mode_vpci_deinit(vm);
#else
sharing_mode_vpci_deinit(vm);
#endif
struct acrn_vm_config *vm_config;
vm_config = get_vm_config(vm->vm_id);
switch (vm_config->type) {
case PRE_LAUNCHED_VM:
partition_mode_vpci_deinit(vm);
break;
case SOS_VM:
sharing_mode_vpci_deinit(vm);
break;
default:
/* Nothing to do for other vm types */
break;
}
}

6
hypervisor/include/dm/vpci.h
View File

@ -76,10 +76,8 @@ struct pci_vdev {
/* The bar info of the virtual PCI device. */
struct pci_bar bar[PCI_BAR_COUNT];
#ifndef CONFIG_PARTITION_MODE
struct pci_msi msi;
struct pci_msix msix;
#endif
};
struct pci_addr_info {
@ -96,9 +94,9 @@ struct acrn_vpci {
};
int32_t partition_mode_vpci_init(const struct acrn_vm *vm);
void partition_mode_cfgread(struct acrn_vpci *vpci, union pci_bdf vbdf,
void partition_mode_cfgread(const struct acrn_vpci *vpci, union pci_bdf vbdf,
uint32_t offset, uint32_t bytes, uint32_t *val);
void partition_mode_cfgwrite(struct acrn_vpci *vpci, union pci_bdf vbdf,
void partition_mode_cfgwrite(const struct acrn_vpci *vpci, union pci_bdf vbdf,
uint32_t offset, uint32_t bytes, uint32_t val);
void partition_mode_vpci_deinit(const struct acrn_vm *vm);