From 0a031e0ac6218fa1b8478ebac3eddb912d2a236a Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Thu, 20 Aug 2009 19:42:37 +0200 Subject: Add VMState support for int32_t check value We read the saved value and check that it is less or equal than the one stored in the structure. Signed-off-by: Juan Quintela Signed-off-by: Anthony Liguori --- hw/hw.h | 4 ++++ savevm.c | 20 ++++++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/hw/hw.h b/hw/hw.h index 02392cacf8..f7b0a14793 100644 --- a/hw/hw.h +++ b/hw/hw.h @@ -315,6 +315,7 @@ extern const VMStateInfo vmstate_info_int32; extern const VMStateInfo vmstate_info_int64; extern const VMStateInfo vmstate_info_int32_equal; +extern const VMStateInfo vmstate_info_int32_le; extern const VMStateInfo vmstate_info_uint8; extern const VMStateInfo vmstate_info_uint16; @@ -447,6 +448,9 @@ extern const VMStateInfo vmstate_info_buffer; #define VMSTATE_INT32_EQUAL(_f, _s) \ VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t) +#define VMSTATE_INT32_LE(_f, _s) \ + VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t) + #define VMSTATE_TIMER_V(_f, _s, _v) \ VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *) diff --git a/savevm.c b/savevm.c index 68fe924d43..d953c4af79 100644 --- a/savevm.c +++ b/savevm.c @@ -722,6 +722,26 @@ const VMStateInfo vmstate_info_int32_equal = { .put = put_int32, }; +/* 32 bit int. See that the received value is the less or the same + than the one in the field */ + +static int get_int32_le(QEMUFile *f, void *pv, size_t size) +{ + int32_t *old = pv; + int32_t new; + qemu_get_sbe32s(f, &new); + + if (*old <= new) + return 0; + return -EINVAL; +} + +const VMStateInfo vmstate_info_int32_le = { + .name = "int32 equal", + .get = get_int32_le, + .put = put_int32, +}; + /* 64 bit int */ static int get_int64(QEMUFile *f, void *pv, size_t size) -- cgit v1.2.3