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Introduce log_start/log_stop in CPUPhysMemoryClient

Browse source 
In order to use log_start/log_stop with Xen as well in the vga code,
this two operations have been put in CPUPhysMemoryClient.

The two new functions cpu_physical_log_start,cpu_physical_log_stop are
used in hw/vga.c and replace the kvm_log_start/stop. With this, vga does
no longer depends on kvm header.

[ Jan: rebasing and style fixlets ]

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Anthony PERARD 2011-02-07 12:19:23 +01:00 committed by Marcelo Tosatti
parent 8e045ac407
commit e5896b12e2
8 changed files with 64 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
cpu-all.h
View file

@ -959,6 +959,12 @@ int cpu_physical_memory_get_dirty_tracking(void);
int cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
target_phys_addr_t end_addr);
int cpu_physical_log_start(target_phys_addr_t start_addr,
ram_addr_t size);
int cpu_physical_log_stop(target_phys_addr_t start_addr,
ram_addr_t size);
void dump_exec_info(FILE *f, fprintf_function cpu_fprintf);
#endif /* !CONFIG_USER_ONLY */

4
cpu-common.h
View file

@ -96,6 +96,10 @@ struct CPUPhysMemoryClient {
target_phys_addr_t end_addr);
int (*migration_log)(struct CPUPhysMemoryClient *client,
int enable);
int (*log_start)(struct CPUPhysMemoryClient *client,
target_phys_addr_t phys_addr, ram_addr_t size);
int (*log_stop)(struct CPUPhysMemoryClient *client,
target_phys_addr_t phys_addr, ram_addr_t size);
QLIST_ENTRY(CPUPhysMemoryClient) list;
};

30
exec.c
View file

@ -2078,6 +2078,36 @@ int cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
return ret;
}
int cpu_physical_log_start(target_phys_addr_t start_addr,
ram_addr_t size)
{
CPUPhysMemoryClient *client;
QLIST_FOREACH(client, &memory_client_list, list) {
if (client->log_start) {
int r = client->log_start(client, start_addr, size);
if (r < 0) {
return r;
}
}
}
return 0;
}
int cpu_physical_log_stop(target_phys_addr_t start_addr,
ram_addr_t size)
{
CPUPhysMemoryClient *client;
QLIST_FOREACH(client, &memory_client_list, list) {
if (client->log_stop) {
int r = client->log_stop(client, start_addr, size);
if (r < 0) {
return r;
}
}
}
return 0;
}
static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry)
{
ram_addr_t ram_addr;

31
hw/vga.c
View file

@ -28,7 +28,6 @@
#include "vga_int.h"
#include "pixel_ops.h"
#include "qemu-timer.h"
#include "kvm.h"
//#define DEBUG_VGA
//#define DEBUG_VGA_MEM
@ -1573,34 +1572,36 @@ static void vga_sync_dirty_bitmap(VGACommonState *s)
void vga_dirty_log_start(VGACommonState *s)
{
if (kvm_enabled() && s->map_addr)
kvm_log_start(s->map_addr, s->map_end - s->map_addr);
if (s->map_addr) {
cpu_physical_log_start(s->map_addr, s->map_end - s->map_addr);
}
if (kvm_enabled() && s->lfb_vram_mapped) {
kvm_log_start(isa_mem_base + 0xa0000, 0x8000);
kvm_log_start(isa_mem_base + 0xa8000, 0x8000);
if (s->lfb_vram_mapped) {
cpu_physical_log_start(isa_mem_base + 0xa0000, 0x8000);
cpu_physical_log_start(isa_mem_base + 0xa8000, 0x8000);
}
#ifdef CONFIG_BOCHS_VBE
if (kvm_enabled() && s->vbe_mapped) {
kvm_log_start(VBE_DISPI_LFB_PHYSICAL_ADDRESS, s->vram_size);
if (s->vbe_mapped) {
cpu_physical_log_start(VBE_DISPI_LFB_PHYSICAL_ADDRESS, s->vram_size);
}
#endif
}
void vga_dirty_log_stop(VGACommonState *s)
{
if (kvm_enabled() && s->map_addr)
kvm_log_stop(s->map_addr, s->map_end - s->map_addr);
if (s->map_addr) {
cpu_physical_log_stop(s->map_addr, s->map_end - s->map_addr);
}
if (kvm_enabled() && s->lfb_vram_mapped) {
kvm_log_stop(isa_mem_base + 0xa0000, 0x8000);
kvm_log_stop(isa_mem_base + 0xa8000, 0x8000);
if (s->lfb_vram_mapped) {
cpu_physical_log_stop(isa_mem_base + 0xa0000, 0x8000);
cpu_physical_log_stop(isa_mem_base + 0xa8000, 0x8000);
}
#ifdef CONFIG_BOCHS_VBE
if (kvm_enabled() && s->vbe_mapped) {
kvm_log_stop(VBE_DISPI_LFB_PHYSICAL_ADDRESS, s->vram_size);
if (s->vbe_mapped) {
cpu_physical_log_stop(VBE_DISPI_LFB_PHYSICAL_ADDRESS, s->vram_size);
}
#endif
}

2
hw/vhost.c
View file

@ -607,6 +607,8 @@ int vhost_dev_init(struct vhost_dev *hdev, int devfd, bool force)
hdev->client.set_memory = vhost_client_set_memory;
hdev->client.sync_dirty_bitmap = vhost_client_sync_dirty_bitmap;
hdev->client.migration_log = vhost_client_migration_log;
hdev->client.log_start = NULL;
hdev->client.log_stop = NULL;
hdev->mem = qemu_mallocz(offsetof(struct vhost_memory, regions));
hdev->log = NULL;
hdev->log_size = 0;

8
kvm-all.c
View file

@ -274,13 +274,15 @@ static int kvm_dirty_pages_log_change(target_phys_addr_t phys_addr,
return kvm_set_user_memory_region(s, mem);
}
int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size)
static int kvm_log_start(CPUPhysMemoryClient *client,
target_phys_addr_t phys_addr, ram_addr_t size)
{
return kvm_dirty_pages_log_change(phys_addr, size, KVM_MEM_LOG_DIRTY_PAGES,
KVM_MEM_LOG_DIRTY_PAGES);
}
int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size)
static int kvm_log_stop(CPUPhysMemoryClient *client,
target_phys_addr_t phys_addr, ram_addr_t size)
{
return kvm_dirty_pages_log_change(phys_addr, size, 0,
KVM_MEM_LOG_DIRTY_PAGES);
@ -644,6 +646,8 @@ static CPUPhysMemoryClient kvm_cpu_phys_memory_client = {
.set_memory = kvm_client_set_memory,
.sync_dirty_bitmap = kvm_client_sync_dirty_bitmap,
.migration_log = kvm_client_migration_log,
.log_start = kvm_log_start,
.log_stop = kvm_log_stop,
};
int kvm_init(void)

10
kvm-stub.c
View file

@ -33,16 +33,6 @@ int kvm_init_vcpu(CPUState *env)
return -ENOSYS;
}
int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size)
{
return -ENOSYS;
}
int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size)
{
return -ENOSYS;
}
int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size)
{
return -ENOSYS;

3
kvm.h
View file

@ -58,9 +58,6 @@ int kvm_init_vcpu(CPUState *env);
int kvm_cpu_exec(CPUState *env);
#if !defined(CONFIG_USER_ONLY)
int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
void kvm_setup_guest_memory(void *start, size_t size);
int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);