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author | Peter Maydell <peter.maydell@linaro.org> | 2014-06-20 18:01:24 +0100 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2014-06-20 18:01:24 +0100 |
commit | 0a99aae5fab5ed260aab96049c274b0334eb4085 (patch) | |
tree | 7db67e570b622a37a2139da871b79b0386942e4b /include/qemu | |
parent | 53001c148340127c2dca1f90329804cd0ac0e236 (diff) | |
parent | 705456c0d7f24fbd76733c891525b8eeea332e8b (diff) | |
download | hqemu-0a99aae5fab5ed260aab96049c274b0334eb4085.zip hqemu-0a99aae5fab5ed260aab96049c274b0334eb4085.tar.gz |
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,pci,virtio,hotplug fixes, enhancements
numa work by Hu Tao and others
memory hotplug by Igor
vhost-user by Nikolay, Antonios and others
guest virtio announcements by Jason
qtest fixes by Sergey
qdev hotplug fixes by Paolo
misc other fixes mostly by myself
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* remotes/mst/tags/for_upstream: (109 commits)
numa: use RAM_ADDR_FMT with ram_addr_t
qapi/string-output-visitor: fix bugs
tests: simplify code
qapi: fix input visitor bugs
acpi: rephrase comment
qmp: add ACPI_DEVICE_OST event handling
qmp: add query-acpi-ospm-status command
acpi: implement ospm_status() method for PIIX4/ICH9_LPC devices
acpi: introduce TYPE_ACPI_DEVICE_IF interface
qmp: add query-memory-devices command
numa: handle mmaped memory allocation failure correctly
pc: acpi: do not hardcode preprocessor
qmp: clean out whitespace
qdev: recursively unrealize devices when unrealizing bus
qdev: reorganize error reporting in bus_set_realized
qapi: fix build on glib < 2.28
qapi: make string output visitor parse int list
qapi: make string input visitor parse int list
tests: fix memory leak in test of string input visitor
hmp: add info memdev
...
Conflicts:
include/hw/i386/pc.h
[PMM: fixed minor conflict in pc.h]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/qemu')
-rw-r--r-- | include/qemu/osdep.h | 16 | ||||
-rw-r--r-- | include/qemu/range.h | 72 |
2 files changed, 88 insertions, 0 deletions
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index ffb2966..6d35c1b 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -116,6 +116,16 @@ void qemu_anon_ram_free(void *ptr, size_t size); #else #define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID #endif +#ifdef MADV_UNMERGEABLE +#define QEMU_MADV_UNMERGEABLE MADV_UNMERGEABLE +#else +#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID +#endif +#ifdef MADV_DODUMP +#define QEMU_MADV_DODUMP MADV_DODUMP +#else +#define QEMU_MADV_DODUMP QEMU_MADV_INVALID +#endif #ifdef MADV_DONTDUMP #define QEMU_MADV_DONTDUMP MADV_DONTDUMP #else @@ -133,6 +143,8 @@ void qemu_anon_ram_free(void *ptr, size_t size); #define QEMU_MADV_DONTNEED POSIX_MADV_DONTNEED #define QEMU_MADV_DONTFORK QEMU_MADV_INVALID #define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID +#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID +#define QEMU_MADV_DODUMP QEMU_MADV_INVALID #define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID #define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID @@ -142,6 +154,8 @@ void qemu_anon_ram_free(void *ptr, size_t size); #define QEMU_MADV_DONTNEED QEMU_MADV_INVALID #define QEMU_MADV_DONTFORK QEMU_MADV_INVALID #define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID +#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID +#define QEMU_MADV_DODUMP QEMU_MADV_INVALID #define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID #define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID @@ -251,4 +265,6 @@ void qemu_init_auxval(char **envp); void qemu_set_tty_echo(int fd, bool echo); +void os_mem_prealloc(int fd, char *area, size_t sz); + #endif diff --git a/include/qemu/range.h b/include/qemu/range.h index aae9720..cfa021f 100644 --- a/include/qemu/range.h +++ b/include/qemu/range.h @@ -3,6 +3,7 @@ #include <inttypes.h> #include <qemu/typedefs.h> +#include "qemu/queue.h" /* * Operations on 64 bit address ranges. @@ -60,4 +61,75 @@ static inline int ranges_overlap(uint64_t first1, uint64_t len1, return !(last2 < first1 || last1 < first2); } +/* 0,1 can merge with 1,2 but don't overlap */ +static inline bool ranges_can_merge(Range *range1, Range *range2) +{ + return !(range1->end < range2->begin || range2->end < range1->begin); +} + +static inline int range_merge(Range *range1, Range *range2) +{ + if (ranges_can_merge(range1, range2)) { + if (range1->end < range2->end) { + range1->end = range2->end; + } + if (range1->begin > range2->begin) { + range1->begin = range2->begin; + } + return 0; + } + + return -1; +} + +static inline GList *g_list_insert_sorted_merged(GList *list, + gpointer data, + GCompareFunc func) +{ + GList *l, *next = NULL; + Range *r, *nextr; + + if (!list) { + list = g_list_insert_sorted(list, data, func); + return list; + } + + nextr = data; + l = list; + while (l && l != next && nextr) { + r = l->data; + if (ranges_can_merge(r, nextr)) { + range_merge(r, nextr); + l = g_list_remove_link(l, next); + next = g_list_next(l); + if (next) { + nextr = next->data; + } else { + nextr = NULL; + } + } else { + l = g_list_next(l); + } + } + + if (!l) { + list = g_list_insert_sorted(list, data, func); + } + + return list; +} + +static inline gint range_compare(gconstpointer a, gconstpointer b) +{ + Range *ra = (Range *)a, *rb = (Range *)b; + if (ra->begin == rb->begin && ra->end == rb->end) { + return 0; + } else if (range_get_last(ra->begin, ra->end) < + range_get_last(rb->begin, rb->end)) { + return -1; + } else { + return 1; + } +} + #endif |