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authorPeter Maydell <peter.maydell@linaro.org>2015-02-24 13:58:18 +0000
committerPeter Maydell <peter.maydell@linaro.org>2015-02-24 13:58:18 +0000
commit73104fd399c6778112f64fe0d439319f24508d9a (patch)
treec097e6a8acd33b8ad8561a2bccacc4247db76085 /include/exec
parent3dc10613c313a042a111e46a977733411495ea8c (diff)
parent0dc3f44aca18b1be8b425f3f4feb4b3e8d68de2e (diff)
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
- vhost-scsi: add bootindex property - RCU: fix MemoryRegion lifetime issues in PCI; document the rules; convert of AddressSpaceDispatch and RAMList - KVM: add kvm_exit reasons for aarch64 # gpg: Signature made Mon Feb 16 16:32:32 2015 GMT using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # 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: (21 commits) Convert ram_list to RCU exec: convert ram_list to QLIST cosmetic changes preparing for the following patches exec: protect mru_block with RCU rcu: add g_free_rcu rcu: introduce RCU-enabled QLIST exec: RCUify AddressSpaceDispatch exec: make iotlb RCU-friendly exec: introduce cpu_reload_memory_map docs: clarify memory region lifecycle pci: split shpc_cleanup and shpc_free pcie: remove mmconfig memory leak and wrap mmconfig update with transaction memory: keep the owner of the AddressSpace alive until do_address_space_destroy rcu: run RCU callbacks under the BQL rcu: do not let RCU callbacks pile up indefinitely vhost-scsi: set the bootable value of channel/target/lun vhost-scsi: add a property for booting vhost-scsi: expose the TYPE_FW_PATH_PROVIDER interface vhost-scsi: add bootindex property qdev: support to get a device firmware path directly ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/exec')
-rw-r--r--include/exec/cpu-all.h13
-rw-r--r--include/exec/cputlb.h2
-rw-r--r--include/exec/exec-all.h5
3 files changed, 12 insertions, 8 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index 2c4828694b..ac06c6721c 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -24,6 +24,7 @@
#include "exec/memory.h"
#include "qemu/thread.h"
#include "qom/cpu.h"
+#include "qemu/rcu.h"
/* some important defines:
*
@@ -268,6 +269,7 @@ CPUArchState *cpu_copy(CPUArchState *env);
typedef struct RAMBlock RAMBlock;
struct RAMBlock {
+ struct rcu_head rcu;
struct MemoryRegion *mr;
uint8_t *host;
ram_addr_t offset;
@@ -275,11 +277,10 @@ struct RAMBlock {
ram_addr_t max_length;
void (*resized)(const char*, uint64_t length, void *host);
uint32_t flags;
+ /* Protected by iothread lock. */
char idstr[256];
- /* Reads can take either the iothread or the ramlist lock.
- * Writes must take both locks.
- */
- QTAILQ_ENTRY(RAMBlock) next;
+ /* RCU-enabled, writes protected by the ramlist lock */
+ QLIST_ENTRY(RAMBlock) next;
int fd;
};
@@ -295,8 +296,8 @@ typedef struct RAMList {
/* Protected by the iothread lock. */
unsigned long *dirty_memory[DIRTY_MEMORY_NUM];
RAMBlock *mru_block;
- /* Protected by the ramlist lock. */
- QTAILQ_HEAD(, RAMBlock) blocks;
+ /* RCU-enabled, writes protected by the ramlist lock. */
+ QLIST_HEAD(, RAMBlock) blocks;
uint32_t version;
} RAMList;
extern RAMList ram_list;
diff --git a/include/exec/cputlb.h b/include/exec/cputlb.h
index b8ecd6f68d..e0da9d7ad3 100644
--- a/include/exec/cputlb.h
+++ b/include/exec/cputlb.h
@@ -34,7 +34,7 @@ extern int tlb_flush_count;
void tb_flush_jmp_cache(CPUState *cpu, target_ulong addr);
MemoryRegionSection *
-address_space_translate_for_iotlb(AddressSpace *as, hwaddr addr, hwaddr *xlat,
+address_space_translate_for_iotlb(CPUState *cpu, hwaddr addr, hwaddr *xlat,
hwaddr *plen);
hwaddr memory_region_section_get_iotlb(CPUState *cpu,
MemoryRegionSection *section,
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 6a154485ba..8eb0db3910 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -96,6 +96,8 @@ void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
void tb_invalidate_phys_range(tb_page_addr_t start, tb_page_addr_t end,
int is_cpu_write_access);
#if !defined(CONFIG_USER_ONLY)
+bool qemu_in_vcpu_thread(void);
+void cpu_reload_memory_map(CPUState *cpu);
void tcg_cpu_address_space_init(CPUState *cpu, AddressSpace *as);
/* cputlb.c */
void tlb_flush_page(CPUState *cpu, target_ulong addr);
@@ -337,7 +339,8 @@ extern uintptr_t tci_tb_ptr;
void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align));
-struct MemoryRegion *iotlb_to_region(AddressSpace *as, hwaddr index);
+struct MemoryRegion *iotlb_to_region(CPUState *cpu,
+ hwaddr index);
bool io_mem_read(struct MemoryRegion *mr, hwaddr addr,
uint64_t *pvalue, unsigned size);
bool io_mem_write(struct MemoryRegion *mr, hwaddr addr,