[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 03/12] xen: Fold CONFIG_XEN_MAPCACHE into CONFIG_XEN
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 03/12] xen: Fold CONFIG_XEN_MAPCACHE into CONFIG_XEN |
Date: |
Tue, 5 Jul 2011 18:51:04 +0200 |
From: Jan Kiszka <address@hidden>
Xen won't be enabled if there is no backend support available for the
host. And that also means the map cache will work. So drop the separate
config switch and move the required stubs over to xen-stub.c.
Signed-off-by: Jan Kiszka <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>
---
Makefile.target | 5 +----
exec.c | 16 ++++++++--------
hw/xen.h | 9 ---------
xen-mapcache-stub.c | 37 -------------------------------------
4 files changed, 9 insertions(+), 58 deletions(-)
delete mode 100644 xen-mapcache-stub.c
diff --git a/Makefile.target b/Makefile.target
index c347176..c566eb1 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -4,7 +4,6 @@ GENERATED_HEADERS = config-target.h
CONFIG_NO_PCI = $(if $(subst n,,$(CONFIG_PCI)),n,y)
CONFIG_NO_KVM = $(if $(subst n,,$(CONFIG_KVM)),n,y)
CONFIG_NO_XEN = $(if $(subst n,,$(CONFIG_XEN)),n,y)
-CONFIG_NO_XEN_MAPCACHE = $(if $(subst n,,$(CONFIG_XEN_MAPCACHE)),n,y)
include ../config-host.mak
include config-devices.mak
@@ -207,10 +206,8 @@ QEMU_CFLAGS += $(VNC_JPEG_CFLAGS)
QEMU_CFLAGS += $(VNC_PNG_CFLAGS)
# xen support
-obj-$(CONFIG_XEN) += xen-all.o xen_machine_pv.o xen_domainbuild.o
+obj-$(CONFIG_XEN) += xen-all.o xen_machine_pv.o xen_domainbuild.o
xen-mapcache.o
obj-$(CONFIG_NO_XEN) += xen-stub.o
-obj-i386-$(CONFIG_XEN_MAPCACHE) += xen-mapcache.o
-obj-$(CONFIG_NO_XEN_MAPCACHE) += xen-mapcache-stub.o
obj-i386-$(CONFIG_XEN) += xen_platform.o
diff --git a/exec.c b/exec.c
index 3addace..5604946 100644
--- a/exec.c
+++ b/exec.c
@@ -2953,7 +2953,7 @@ ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev,
const char *name,
abort();
}
#else
- if (xen_mapcache_enabled()) {
+ if (xen_enabled()) {
xen_ram_alloc(new_block->offset, size);
} else {
new_block->host = qemu_vmalloc(size);
@@ -3019,7 +3019,7 @@ void qemu_ram_free(ram_addr_t addr)
#if defined(TARGET_S390X) && defined(CONFIG_KVM)
munmap(block->host, block->length);
#else
- if (xen_mapcache_enabled()) {
+ if (xen_enabled()) {
xen_invalidate_map_cache_entry(block->host);
} else {
qemu_vfree(block->host);
@@ -3112,7 +3112,7 @@ void *qemu_get_ram_ptr(ram_addr_t addr)
QLIST_REMOVE(block, next);
QLIST_INSERT_HEAD(&ram_list.blocks, block, next);
}
- if (xen_mapcache_enabled()) {
+ if (xen_enabled()) {
/* We need to check if the requested address is in the RAM
* because we don't want to map the entire memory in QEMU.
* In that case just map until the end of the page.
@@ -3143,7 +3143,7 @@ void *qemu_safe_ram_ptr(ram_addr_t addr)
QLIST_FOREACH(block, &ram_list.blocks, next) {
if (addr - block->offset < block->length) {
- if (xen_mapcache_enabled()) {
+ if (xen_enabled()) {
/* We need to check if the requested address is in the RAM
* because we don't want to map the entire memory in QEMU.
* In that case just map until the end of the page.
@@ -3169,9 +3169,9 @@ void *qemu_safe_ram_ptr(ram_addr_t addr)
* but takes a size argument */
void *qemu_ram_ptr_length(target_phys_addr_t addr, target_phys_addr_t *size)
{
- if (xen_mapcache_enabled())
+ if (xen_enabled()) {
return xen_map_cache(addr, *size, 1);
- else {
+ } else {
RAMBlock *block;
QLIST_FOREACH(block, &ram_list.blocks, next) {
@@ -3200,7 +3200,7 @@ int qemu_ram_addr_from_host(void *ptr, ram_addr_t
*ram_addr)
RAMBlock *block;
uint8_t *host = ptr;
- if (xen_mapcache_enabled()) {
+ if (xen_enabled()) {
*ram_addr = xen_ram_addr_from_mapcache(ptr);
return 0;
}
@@ -4115,7 +4115,7 @@ void cpu_physical_memory_unmap(void *buffer,
target_phys_addr_t len,
access_len -= l;
}
}
- if (xen_mapcache_enabled()) {
+ if (xen_enabled()) {
xen_invalidate_map_cache_entry(buffer);
}
return;
diff --git a/hw/xen.h b/hw/xen.h
index d435ca0..95029bb 100644
--- a/hw/xen.h
+++ b/hw/xen.h
@@ -31,15 +31,6 @@ static inline int xen_enabled(void)
#endif
}
-static inline int xen_mapcache_enabled(void)
-{
-#ifdef CONFIG_XEN_MAPCACHE
- return xen_enabled();
-#else
- return 0;
-#endif
-}
-
int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
void xen_piix3_set_irq(void *opaque, int irq_num, int level);
void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
diff --git a/xen-mapcache-stub.c b/xen-mapcache-stub.c
deleted file mode 100644
index f037016..0000000
--- a/xen-mapcache-stub.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2011 Citrix Ltd.
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "config.h"
-
-#include "cpu.h"
-#include "qemu-common.h"
-#include "cpu-common.h"
-#include "xen-mapcache.h"
-
-void xen_map_cache_init(void)
-{
-}
-
-uint8_t *xen_map_cache(target_phys_addr_t phys_addr, target_phys_addr_t size,
- uint8_t lock)
-{
- return qemu_get_ram_ptr(phys_addr);
-}
-
-ram_addr_t xen_ram_addr_from_mapcache(void *ptr)
-{
- return -1;
-}
-
-void xen_invalidate_map_cache(void)
-{
-}
-
-void xen_invalidate_map_cache_entry(uint8_t *buffer)
-{
-}
--
1.6.0.2
- [Qemu-devel] [PATCH 09/12] xen_disk: treat "aio" as "raw", (continued)
- [Qemu-devel] [PATCH 09/12] xen_disk: treat "aio" as "raw", Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 08/12] qemu_ram_ptr_length: take ram_addr_t as arguments, Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 04/12] xen: enable console and disk backend in HVM mode, Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 06/12] xen: add vkbd support for PV on HVM guests, Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 02/12] xen: Clean up map cache API naming, Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 10/12] checkpatch: don't error out on }, { lines, Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 07/12] xen_disk: cope with missing xenstore "params" node, Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 01/12] xen: Clean up build system, Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 11/12] xen_console: support the new extended xenstore protocol, Alexander Graf, 2011/07/05
- [Qemu-devel] [PATCH 03/12] xen: Fold CONFIG_XEN_MAPCACHE into CONFIG_XEN,
Alexander Graf <=
- [Qemu-devel] [PATCH 12/12] xen_console: fall back to qemu serial device, Alexander Graf, 2011/07/05
- Re: [Qemu-devel] [PULL 00/12] Xen patch queue 2011-07-05, Anthony Liguori, 2011/07/19