Re: [libvirt] [PATCHv2 1/2] util, resctrl: using 64bit interface instead of 32bit for counters

The underlying resctrl monitoring is actually using 64 bit counters, not the 32bit one. Correct this by using 64bit data type for reading hardware value. To keep the interface consistent, the result of CPU last level cache that occupied by vcpu processors of specific restrl monitor group is still reported with a truncated 32bit data type. because, in silicon world, CPU cache size will never exceed 4GB. Signed-off-by: Wang Huaqiang <huaqiang.wang(a)intel.com&gt; --- src/qemu/qemu_driver.c | 15 +++++++++++++-- src/util/virfile.c | 40 ++++++++++++++++++++++++++++++++++++++++ src/util/virfile.h | 2 ++ src/util/virresctrl.c | 6 +++--- src/util/virresctrl.h | 2 +- 5 files changed, 59 insertions(+), 6 deletions(-)

diff --git a/src/util/virfile.h b/src/util/virfile.h index bcae40ee06..756c9a70b9 100644 --- a/src/util/virfile.h +++ b/src/util/virfile.h @@ -361,6 +361,8 @@ int virFileReadValueInt(int *value, const char *format, ...) G_GNUC_PRINTF(2, 3); int virFileReadValueUint(unsigned int *value, const char *format, ...) G_GNUC_PRINTF(2, 3); +int virFileReadValueUllong(unsigned long long *value, const char *format, ...) + G_GNUC_PRINTF(2, 3);