diff options
| -rw-r--r-- | exec.c | 9 | ||||
| -rw-r--r-- | include/exec/exec-all.h | 2 | ||||
| -rw-r--r-- | include/exec/memory.h | 2 | ||||
| -rw-r--r-- | include/qemu/osdep.h | 3 | ||||
| -rw-r--r-- | memory.c | 5 | ||||
| -rw-r--r-- | target-s390x/kvm.c | 2 | ||||
| -rw-r--r-- | util/oslib-posix.c | 5 | ||||
| -rw-r--r-- | util/oslib-win32.c | 2 |
8 files changed, 22 insertions, 8 deletions
@@ -909,14 +909,15 @@ static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, uint16_t section); static subpage_t *subpage_init(AddressSpace *as, hwaddr base); -static void *(*phys_mem_alloc)(size_t size) = qemu_anon_ram_alloc; +static void *(*phys_mem_alloc)(size_t size, uint64_t *align) = + qemu_anon_ram_alloc; /* * Set a custom physical guest memory alloator. * Accelerators with unusual needs may need this. Hopefully, we can * get rid of it eventually. */ -void phys_mem_set_alloc(void *(*alloc)(size_t)) +void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align)) { phys_mem_alloc = alloc; } @@ -1098,6 +1099,7 @@ static void *file_ram_alloc(RAMBlock *block, error_propagate(errp, local_err); goto error; } + block->mr->align = hpagesize; if (memory < hpagesize) { error_setg(errp, "memory size 0x" RAM_ADDR_FMT " must be equal to " @@ -1309,7 +1311,8 @@ static ram_addr_t ram_block_add(RAMBlock *new_block, Error **errp) if (xen_enabled()) { xen_ram_alloc(new_block->offset, new_block->length, new_block->mr); } else { - new_block->host = phys_mem_alloc(new_block->length); + new_block->host = phys_mem_alloc(new_block->length, + &new_block->mr->align); if (!new_block->host) { error_setg_errno(errp, errno, "cannot set up guest memory '%s'", diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 421a142..0844885 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -333,7 +333,7 @@ extern uintptr_t tci_tb_ptr; #if !defined(CONFIG_USER_ONLY) -void phys_mem_set_alloc(void *(*alloc)(size_t)); +void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align)); struct MemoryRegion *iotlb_to_region(AddressSpace *as, hwaddr index); bool io_mem_read(struct MemoryRegion *mr, hwaddr addr, diff --git a/include/exec/memory.h b/include/exec/memory.h index 74a58b4..f64ab5e 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -146,6 +146,7 @@ struct MemoryRegion { hwaddr addr; void (*destructor)(MemoryRegion *mr); ram_addr_t ram_addr; + uint64_t align; bool subpage; bool terminates; bool romd_mode; @@ -838,6 +839,7 @@ void memory_region_add_subregion_overlap(MemoryRegion *mr, */ ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr); +uint64_t memory_region_get_alignment(const MemoryRegion *mr); /** * memory_region_del_subregion: Remove a subregion. * diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index c032434..b3300cc 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -5,6 +5,7 @@ #include <stdarg.h> #include <stddef.h> #include <stdbool.h> +#include <stdint.h> #include <sys/types.h> #ifdef __OpenBSD__ #include <sys/signal.h> @@ -103,7 +104,7 @@ typedef signed int int_fast16_t; int qemu_daemon(int nochdir, int noclose); void *qemu_try_memalign(size_t alignment, size_t size); void *qemu_memalign(size_t alignment, size_t size); -void *qemu_anon_ram_alloc(size_t size); +void *qemu_anon_ram_alloc(size_t size, uint64_t *align); void qemu_vfree(void *ptr); void qemu_anon_ram_free(void *ptr, size_t size); @@ -1749,6 +1749,11 @@ ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr) return mr->ram_addr; } +uint64_t memory_region_get_alignment(const MemoryRegion *mr) +{ + return mr->align; +} + static int cmp_flatrange_addr(const void *addr_, const void *fr_) { const AddrRange *addr = addr_; diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c index d247471..50709ba 100644 --- a/target-s390x/kvm.c +++ b/target-s390x/kvm.c @@ -404,7 +404,7 @@ int kvm_arch_get_registers(CPUState *cs) * to grow. We also have to use MAP parameters that avoid * read-only mapping of guest pages. */ -static void *legacy_s390_alloc(size_t size) +static void *legacy_s390_alloc(size_t size, , uint64_t *align) { void *mem; diff --git a/util/oslib-posix.c b/util/oslib-posix.c index 8c9d80e..16fcec2 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -124,7 +124,7 @@ void *qemu_memalign(size_t alignment, size_t size) } /* alloc shared memory pages */ -void *qemu_anon_ram_alloc(size_t size) +void *qemu_anon_ram_alloc(size_t size, uint64_t *alignment) { size_t align = QEMU_VMALLOC_ALIGN; size_t total = size + align - getpagesize(); @@ -136,6 +136,9 @@ void *qemu_anon_ram_alloc(size_t size) return NULL; } + if (alignment) { + *alignment = align; + } ptr += offset; total -= offset; diff --git a/util/oslib-win32.c b/util/oslib-win32.c index a3eab4a..87cfbe0 100644 --- a/util/oslib-win32.c +++ b/util/oslib-win32.c @@ -67,7 +67,7 @@ void *qemu_memalign(size_t alignment, size_t size) return qemu_oom_check(qemu_try_memalign(alignment, size)); } -void *qemu_anon_ram_alloc(size_t size) +void *qemu_anon_ram_alloc(size_t size, uint64_t *align) { void *ptr; |
