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* MemoryRegionCache revert

Browse Source 
* glib optimization workaround
 * fix "info lapic" segfault on isapc
 * fix QIOChannel memory leak
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* MemoryRegionCache revert
* glib optimization workaround
* fix "info lapic" segfault on isapc
* fix QIOChannel memory leak

# gpg: Signature made Mon 03 Apr 2017 18:17:00 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
  main-loop: Acquire main_context lock around os_host_main_loop_wait.
  exec: revert MemoryRegionCache
  nbd: fix memory leak on socket_connect failed
  ipmi: Fix macro issues
  target-i386: fix "info lapic" segfault on isapc
  iscsi: drop unused IscsiAIOCB.qiov field

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-04-04 11:40:55 +01:00
commit 87cc4c6102
7 changed files with 43 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
block/iscsi.c
View File

@ -103,7 +103,6 @@ typedef struct IscsiTask {
typedef struct IscsiAIOCB {
BlockAIOCB common;
QEMUIOVector *qiov;
QEMUBH *bh;
IscsiLun *iscsilun;
struct scsi_task *task;

1
block/nbd.c
View File

@ -322,6 +322,7 @@ static QIOChannelSocket *nbd_establish_connection(SocketAddressFlat *saddr_flat,
&local_err);
qapi_free_SocketAddress(saddr);
if (local_err) {
object_unref(OBJECT(sioc));
error_propagate(errp, local_err);
return NULL;
}

64
exec.c
View File

@ -3236,75 +3236,33 @@ int64_t address_space_cache_init(MemoryRegionCache *cache,
hwaddr len,
bool is_write)
{
hwaddr l, xlat;
MemoryRegion *mr;
void *ptr;
assert(len > 0);
l = len;
mr = address_space_translate(as, addr, &xlat, &l, is_write);
if (!memory_access_is_direct(mr, is_write)) {
return -EINVAL;
}
l = address_space_extend_translation(as, addr, len, mr, xlat, l, is_write);
ptr = qemu_ram_ptr_length(mr->ram_block, xlat, &l);
cache->xlat = xlat;
cache->is_write = is_write;
cache->mr = mr;
cache->ptr = ptr;
cache->len = l;
memory_region_ref(cache->mr);
return l;
cache->len = len;
cache->as = as;
cache->xlat = addr;
return len;
}
void address_space_cache_invalidate(MemoryRegionCache *cache,
hwaddr addr,
hwaddr access_len)
{
assert(cache->is_write);
invalidate_and_set_dirty(cache->mr, addr + cache->xlat, access_len);
}
void address_space_cache_destroy(MemoryRegionCache *cache)
{
if (!cache->mr) {
return;
}
if (xen_enabled()) {
xen_invalidate_map_cache_entry(cache->ptr);
}
memory_region_unref(cache->mr);
cache->mr = NULL;
}
/* Called from RCU critical section. This function has the same
* semantics as address_space_translate, but it only works on a
* predefined range of a MemoryRegion that was mapped with
* address_space_cache_init.
*/
static inline MemoryRegion *address_space_translate_cached(
MemoryRegionCache *cache, hwaddr addr, hwaddr *xlat,
hwaddr *plen, bool is_write)
{
assert(addr < cache->len && *plen <= cache->len - addr);
*xlat = addr + cache->xlat;
return cache->mr;
cache->as = NULL;
}
#define ARG1_DECL MemoryRegionCache *cache
#define ARG1 cache
#define SUFFIX _cached
#define TRANSLATE(...) address_space_translate_cached(cache, __VA_ARGS__)
#define TRANSLATE(addr, ...) \
address_space_translate(cache->as, cache->xlat + (addr), __VA_ARGS__)
#define IS_DIRECT(mr, is_write) true
#define MAP_RAM(mr, ofs) (cache->ptr + (ofs - cache->xlat))
#define INVALIDATE(mr, ofs, len) ((void)0)
#define RCU_READ_LOCK() ((void)0)
#define RCU_READ_UNLOCK() ((void)0)
#define MAP_RAM(mr, ofs) qemu_map_ram_ptr((mr)->ram_block, ofs)
#define INVALIDATE(mr, ofs, len) invalidate_and_set_dirty(mr, ofs, len)
#define RCU_READ_LOCK() rcu_read_lock()
#define RCU_READ_UNLOCK() rcu_read_unlock()
#include "memory_ldst.inc.c"
/* virtual memory access for debug (includes writing to ROM) */

34
hw/ipmi/isa_ipmi_bt.c
View File

@ -37,40 +37,30 @@
#define IPMI_BT_HBUSY_BIT 6
#define IPMI_BT_BBUSY_BIT 7
#define IPMI_BT_CLR_WR_MASK (1 << IPMI_BT_CLR_WR_BIT)
#define IPMI_BT_GET_CLR_WR(d) (((d) >> IPMI_BT_CLR_WR_BIT) & 0x1)
#define IPMI_BT_SET_CLR_WR(d, v) (d) = (((d) & ~IPMI_BT_CLR_WR_MASK) | \
(((v & 1) << IPMI_BT_CLR_WR_BIT)))
#define IPMI_BT_CLR_RD_MASK (1 << IPMI_BT_CLR_RD_BIT)
#define IPMI_BT_GET_CLR_RD(d) (((d) >> IPMI_BT_CLR_RD_BIT) & 0x1)
#define IPMI_BT_SET_CLR_RD(d, v) (d) = (((d) & ~IPMI_BT_CLR_RD_MASK) | \
(((v & 1) << IPMI_BT_CLR_RD_BIT)))
#define IPMI_BT_H2B_ATN_MASK (1 << IPMI_BT_H2B_ATN_BIT)
#define IPMI_BT_GET_H2B_ATN(d) (((d) >> IPMI_BT_H2B_ATN_BIT) & 0x1)
#define IPMI_BT_SET_H2B_ATN(d, v) (d) = (((d) & ~IPMI_BT_H2B_ATN_MASK) | \
(((v & 1) << IPMI_BT_H2B_ATN_BIT)))
#define IPMI_BT_B2H_ATN_MASK (1 << IPMI_BT_B2H_ATN_BIT)
#define IPMI_BT_GET_B2H_ATN(d) (((d) >> IPMI_BT_B2H_ATN_BIT) & 0x1)
#define IPMI_BT_SET_B2H_ATN(d, v) (d) = (((d) & ~IPMI_BT_B2H_ATN_MASK) | \
(((v & 1) << IPMI_BT_B2H_ATN_BIT)))
#define IPMI_BT_SET_B2H_ATN(d, v) ((d) = (((d) & ~IPMI_BT_B2H_ATN_MASK) | \
(((v) & 1) << IPMI_BT_B2H_ATN_BIT)))
#define IPMI_BT_SMS_ATN_MASK (1 << IPMI_BT_SMS_ATN_BIT)
#define IPMI_BT_GET_SMS_ATN(d) (((d) >> IPMI_BT_SMS_ATN_BIT) & 0x1)
#define IPMI_BT_SET_SMS_ATN(d, v) (d) = (((d) & ~IPMI_BT_SMS_ATN_MASK) | \
(((v & 1) << IPMI_BT_SMS_ATN_BIT)))
#define IPMI_BT_SET_SMS_ATN(d, v) ((d) = (((d) & ~IPMI_BT_SMS_ATN_MASK) | \
(((v) & 1) << IPMI_BT_SMS_ATN_BIT)))
#define IPMI_BT_HBUSY_MASK (1 << IPMI_BT_HBUSY_BIT)
#define IPMI_BT_GET_HBUSY(d) (((d) >> IPMI_BT_HBUSY_BIT) & 0x1)
#define IPMI_BT_SET_HBUSY(d, v) (d) = (((d) & ~IPMI_BT_HBUSY_MASK) | \
(((v & 1) << IPMI_BT_HBUSY_BIT)))
#define IPMI_BT_SET_HBUSY(d, v) ((d) = (((d) & ~IPMI_BT_HBUSY_MASK) | \
(((v) & 1) << IPMI_BT_HBUSY_BIT)))
#define IPMI_BT_BBUSY_MASK (1 << IPMI_BT_BBUSY_BIT)
#define IPMI_BT_GET_BBUSY(d) (((d) >> IPMI_BT_BBUSY_BIT) & 0x1)
#define IPMI_BT_SET_BBUSY(d, v) (d) = (((d) & ~IPMI_BT_BBUSY_MASK) | \
(((v & 1) << IPMI_BT_BBUSY_BIT)))
#define IPMI_BT_SET_BBUSY(d, v) ((d) = (((d) & ~IPMI_BT_BBUSY_MASK) | \
(((v) & 1) << IPMI_BT_BBUSY_BIT)))
/* Mask register */
@ -79,13 +69,13 @@
#define IPMI_BT_B2H_IRQ_EN_MASK (1 << IPMI_BT_B2H_IRQ_EN_BIT)
#define IPMI_BT_GET_B2H_IRQ_EN(d) (((d) >> IPMI_BT_B2H_IRQ_EN_BIT) & 0x1)
#define IPMI_BT_SET_B2H_IRQ_EN(d, v) (d) = (((d) & ~IPMI_BT_B2H_IRQ_EN_MASK) | \
(((v & 1) << IPMI_BT_B2H_IRQ_EN_BIT)))
#define IPMI_BT_SET_B2H_IRQ_EN(d, v) ((d) = (((d) & ~IPMI_BT_B2H_IRQ_EN_MASK) |\
(((v) & 1) << IPMI_BT_B2H_IRQ_EN_BIT)))
#define IPMI_BT_B2H_IRQ_MASK (1 << IPMI_BT_B2H_IRQ_BIT)
#define IPMI_BT_GET_B2H_IRQ(d) (((d) >> IPMI_BT_B2H_IRQ_BIT) & 0x1)
#define IPMI_BT_SET_B2H_IRQ(d, v) (d) = (((d) & ~IPMI_BT_B2H_IRQ_MASK) | \
(((v & 1) << IPMI_BT_B2H_IRQ_BIT)))
#define IPMI_BT_SET_B2H_IRQ(d, v) ((d) = (((d) & ~IPMI_BT_B2H_IRQ_MASK) | \
(((v) & 1) << IPMI_BT_B2H_IRQ_BIT)))
typedef struct IPMIBT {
IPMIBmc *bmc;

10
include/exec/memory.h
View File

@ -1426,13 +1426,11 @@ void stq_be_phys(AddressSpace *as, hwaddr addr, uint64_t val);
struct MemoryRegionCache {
hwaddr xlat;
void *ptr;
hwaddr len;
MemoryRegion *mr;
bool is_write;
AddressSpace *as;
};
#define MEMORY_REGION_CACHE_INVALID ((MemoryRegionCache) { .mr = NULL })
#define MEMORY_REGION_CACHE_INVALID ((MemoryRegionCache) { .as = NULL })
/* address_space_cache_init: prepare for repeated access to a physical
* memory region
@ -1688,7 +1686,7 @@ address_space_read_cached(MemoryRegionCache *cache, hwaddr addr,
void *buf, int len)
{
assert(addr < cache->len && len <= cache->len - addr);
memcpy(buf, cache->ptr + addr, len);
address_space_read(cache->as, cache->xlat + addr, MEMTXATTRS_UNSPECIFIED, buf, len);
}
/**
@ -1704,7 +1702,7 @@ address_space_write_cached(MemoryRegionCache *cache, hwaddr addr,
void *buf, int len)
{
assert(addr < cache->len && len <= cache->len - addr);
memcpy(cache->ptr + addr, buf, len);
address_space_write(cache->as, cache->xlat + addr, MEMTXATTRS_UNSPECIFIED, buf, len);
}
#endif

4
target/i386/helper.c
View File

@ -326,6 +326,10 @@ void x86_cpu_dump_local_apic_state(CPUState *cs, FILE *f,
{
X86CPU *cpu = X86_CPU(cs);
APICCommonState *s = APIC_COMMON(cpu->apic_state);
if (!s) {
cpu_fprintf(f, "local apic state not available\n");
return;
}
uint32_t *lvt = s->lvt;
cpu_fprintf(f, "dumping local APIC state for CPU %-2u\n\n",

11
util/main-loop.c
View File

@ -218,9 +218,12 @@ static void glib_pollfds_poll(void)
static int os_host_main_loop_wait(int64_t timeout)
{
GMainContext *context = g_main_context_default();
int ret;
static int spin_counter;
g_main_context_acquire(context);
glib_pollfds_fill(&timeout);
/* If the I/O thread is very busy or we are incorrectly busy waiting in
@ -256,6 +259,9 @@ static int os_host_main_loop_wait(int64_t timeout)
}
glib_pollfds_poll();
g_main_context_release(context);
return ret;
}
#else
@ -412,12 +418,15 @@ static int os_host_main_loop_wait(int64_t timeout)
fd_set rfds, wfds, xfds;
int nfds;
g_main_context_acquire(context);
/* XXX: need to suppress polling by better using win32 events */
ret = 0;
for (pe = first_polling_entry; pe != NULL; pe = pe->next) {
ret |= pe->func(pe->opaque);
}
if (ret != 0) {
g_main_context_release(context);
return ret;
}
@ -472,6 +481,8 @@ static int os_host_main_loop_wait(int64_t timeout)
g_main_context_dispatch(context);
}
g_main_context_release(context);
return select_ret || g_poll_ret;
}
#endif