[libvirt] [PATCH] nodeinfo: fix physical memory size on Mac OS X
HW_PHYSMEM is available on Mac OS X as well as FreeBSD, however, its resulting value for Mac OS X is 32 bits. Mac OS X provides HW_MEMSIZE that is 64 bits version of HW_PHYSMEM. We have to use it. I tested the patch on Mac OS X 10.6.8, 10.7.4, 10.8.5 and FreeBSD 9.2. Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> --- src/nodeinfo.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-) diff --git a/src/nodeinfo.c b/src/nodeinfo.c index 70814c2..a0fdfe7 100644 --- a/src/nodeinfo.c +++ b/src/nodeinfo.c @@ -73,6 +73,33 @@ appleFreebsdNodeGetCPUCount(void) return ncpu; } + +/* VIR_HW_PHYSMEM - the resulting value of HW_PHYSMEM of FreeBSD + * is 64 bits while that of Mac OS X is still 32 bits. + * Mac OS X provides HW_MEMSIZE for 64 bits version of HW_PHYSMEM + * since 10.6.8 (Snow Leopard) at least. + */ +# ifdef HW_MEMSIZE +# define VIR_HW_PHYSMEM HW_MEMSIZE +# else +# define VIR_HW_PHYSMEM HW_PHYSMEM +# endif +static int +appleFreebsdNodeGetMemorySize(unsigned long *memory) +{ + int mib[2] = { CTL_HW, VIR_HW_PHYSMEM }; + unsigned long physmem; + size_t len = sizeof(physmem); + + if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { + virReportSystemError(errno, "%s", _("cannot obtain memory size")); + return -1; + } + + *memory = (unsigned long)(physmem / 1024); + + return 0; +} #endif #ifdef __linux__ @@ -914,17 +941,8 @@ cleanup: nodeinfo->mhz = cpu_freq / 1000000; # endif - /* get memory information */ - int mib[2] = { CTL_HW, HW_PHYSMEM }; - unsigned long physmem; - size_t len = sizeof(physmem); - - if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { - virReportSystemError(errno, "%s", _("cannot obtain memory size")); + if (appleFreebsdNodeGetMemorySize(&nodeinfo->memory) < 0) return -1; - } - - nodeinfo->memory = (unsigned long)(physmem / 1024); return 0; } -- 1.8.4
On Sun, Oct 20, 2013 at 10:14 AM, Ryota Ozaki <ozaki.ryota@gmail.com> wrote:
HW_PHYSMEM is available on Mac OS X as well as FreeBSD, however, its resulting value for Mac OS X is 32 bits. Mac OS X provides HW_MEMSIZE that is 64 bits version of HW_PHYSMEM. We have to use it.
I tested the patch on Mac OS X 10.6.8, 10.7.4, 10.8.5 and FreeBSD 9.2.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> --- src/nodeinfo.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-)
diff --git a/src/nodeinfo.c b/src/nodeinfo.c index 70814c2..a0fdfe7 100644 --- a/src/nodeinfo.c +++ b/src/nodeinfo.c @@ -73,6 +73,33 @@ appleFreebsdNodeGetCPUCount(void)
return ncpu; } + +/* VIR_HW_PHYSMEM - the resulting value of HW_PHYSMEM of FreeBSD + * is 64 bits while that of Mac OS X is still 32 bits. + * Mac OS X provides HW_MEMSIZE for 64 bits version of HW_PHYSMEM + * since 10.6.8 (Snow Leopard) at least. + */ +# ifdef HW_MEMSIZE +# define VIR_HW_PHYSMEM HW_MEMSIZE +# else +# define VIR_HW_PHYSMEM HW_PHYSMEM +# endif +static int +appleFreebsdNodeGetMemorySize(unsigned long *memory) +{ + int mib[2] = { CTL_HW, VIR_HW_PHYSMEM }; + unsigned long physmem; + size_t len = sizeof(physmem); + + if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { + virReportSystemError(errno, "%s", _("cannot obtain memory size")); + return -1; + } + + *memory = (unsigned long)(physmem / 1024); + + return 0; +} #endif
#ifdef __linux__ @@ -914,17 +941,8 @@ cleanup: nodeinfo->mhz = cpu_freq / 1000000; # endif
- /* get memory information */ - int mib[2] = { CTL_HW, HW_PHYSMEM }; - unsigned long physmem; - size_t len = sizeof(physmem); - - if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { - virReportSystemError(errno, "%s", _("cannot obtain memory size")); + if (appleFreebsdNodeGetMemorySize(&nodeinfo->memory) < 0) return -1; - } - - nodeinfo->memory = (unsigned long)(physmem / 1024);
return 0; } -- 1.8.4
-- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
I'd say ACK on this but I'm not sure how the other devs feel about breaking this out into another function with no clear benefit. -- Doug Goldstein
Hi Doug, On Mon, Oct 21, 2013 at 10:51 AM, Doug Goldstein <cardoe@gentoo.org> wrote:
On Sun, Oct 20, 2013 at 10:14 AM, Ryota Ozaki <ozaki.ryota@gmail.com> wrote:
HW_PHYSMEM is available on Mac OS X as well as FreeBSD, however, its resulting value for Mac OS X is 32 bits. Mac OS X provides HW_MEMSIZE that is 64 bits version of HW_PHYSMEM. We have to use it.
I tested the patch on Mac OS X 10.6.8, 10.7.4, 10.8.5 and FreeBSD 9.2.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> --- src/nodeinfo.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-)
diff --git a/src/nodeinfo.c b/src/nodeinfo.c index 70814c2..a0fdfe7 100644 --- a/src/nodeinfo.c +++ b/src/nodeinfo.c @@ -73,6 +73,33 @@ appleFreebsdNodeGetCPUCount(void)
return ncpu; } + +/* VIR_HW_PHYSMEM - the resulting value of HW_PHYSMEM of FreeBSD + * is 64 bits while that of Mac OS X is still 32 bits. + * Mac OS X provides HW_MEMSIZE for 64 bits version of HW_PHYSMEM + * since 10.6.8 (Snow Leopard) at least. + */ +# ifdef HW_MEMSIZE +# define VIR_HW_PHYSMEM HW_MEMSIZE +# else +# define VIR_HW_PHYSMEM HW_PHYSMEM +# endif +static int +appleFreebsdNodeGetMemorySize(unsigned long *memory) +{ + int mib[2] = { CTL_HW, VIR_HW_PHYSMEM }; + unsigned long physmem; + size_t len = sizeof(physmem); + + if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { + virReportSystemError(errno, "%s", _("cannot obtain memory size")); + return -1; + } + + *memory = (unsigned long)(physmem / 1024); + + return 0; +} #endif
#ifdef __linux__ @@ -914,17 +941,8 @@ cleanup: nodeinfo->mhz = cpu_freq / 1000000; # endif
- /* get memory information */ - int mib[2] = { CTL_HW, HW_PHYSMEM }; - unsigned long physmem; - size_t len = sizeof(physmem); - - if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { - virReportSystemError(errno, "%s", _("cannot obtain memory size")); + if (appleFreebsdNodeGetMemorySize(&nodeinfo->memory) < 0) return -1; - } - - nodeinfo->memory = (unsigned long)(physmem / 1024);
return 0; } -- 1.8.4
-- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
I'd say ACK on this but I'm not sure how the other devs feel about breaking this out into another function with no clear benefit.
The aim of the pull-out is to reduce the complexity of nodeGetInfo. I can separate the patch into two, tidy-up and fix-up, if preferable. Thanks, ozaki-r
-- Doug Goldstein
On Sun, Oct 20, 2013 at 10:28 PM, Ryota Ozaki <ozaki.ryota@gmail.com> wrote:
Hi Doug,
On Mon, Oct 21, 2013 at 10:51 AM, Doug Goldstein <cardoe@gentoo.org> wrote:
On Sun, Oct 20, 2013 at 10:14 AM, Ryota Ozaki <ozaki.ryota@gmail.com> wrote:
HW_PHYSMEM is available on Mac OS X as well as FreeBSD, however, its resulting value for Mac OS X is 32 bits. Mac OS X provides HW_MEMSIZE that is 64 bits version of HW_PHYSMEM. We have to use it.
I tested the patch on Mac OS X 10.6.8, 10.7.4, 10.8.5 and FreeBSD 9.2.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> --- src/nodeinfo.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-)
diff --git a/src/nodeinfo.c b/src/nodeinfo.c index 70814c2..a0fdfe7 100644 --- a/src/nodeinfo.c +++ b/src/nodeinfo.c @@ -73,6 +73,33 @@ appleFreebsdNodeGetCPUCount(void)
return ncpu; } + +/* VIR_HW_PHYSMEM - the resulting value of HW_PHYSMEM of FreeBSD + * is 64 bits while that of Mac OS X is still 32 bits. + * Mac OS X provides HW_MEMSIZE for 64 bits version of HW_PHYSMEM + * since 10.6.8 (Snow Leopard) at least. + */ +# ifdef HW_MEMSIZE +# define VIR_HW_PHYSMEM HW_MEMSIZE +# else +# define VIR_HW_PHYSMEM HW_PHYSMEM +# endif +static int +appleFreebsdNodeGetMemorySize(unsigned long *memory) +{ + int mib[2] = { CTL_HW, VIR_HW_PHYSMEM }; + unsigned long physmem; + size_t len = sizeof(physmem); + + if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { + virReportSystemError(errno, "%s", _("cannot obtain memory size")); + return -1; + } + + *memory = (unsigned long)(physmem / 1024); + + return 0; +} #endif
#ifdef __linux__ @@ -914,17 +941,8 @@ cleanup: nodeinfo->mhz = cpu_freq / 1000000; # endif
- /* get memory information */ - int mib[2] = { CTL_HW, HW_PHYSMEM }; - unsigned long physmem; - size_t len = sizeof(physmem); - - if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { - virReportSystemError(errno, "%s", _("cannot obtain memory size")); + if (appleFreebsdNodeGetMemorySize(&nodeinfo->memory) < 0) return -1; - } - - nodeinfo->memory = (unsigned long)(physmem / 1024);
return 0; } -- 1.8.4
-- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
I'd say ACK on this but I'm not sure how the other devs feel about breaking this out into another function with no clear benefit.
The aim of the pull-out is to reduce the complexity of nodeGetInfo. I can separate the patch into two, tidy-up and fix-up, if preferable.
Thanks, ozaki-r
I understand. the nodeGetInfo() at that point is ifdef'd only for FreeBSD and Apple at that point. But I do see another place we've done this in within that function so I don't see a problem merging this. I'll pull this in. -- Doug Goldstein
On Mon, Oct 21, 2013 at 11:57 PM, Doug Goldstein <cardoe@gentoo.org> wrote:
On Sun, Oct 20, 2013 at 10:28 PM, Ryota Ozaki <ozaki.ryota@gmail.com> wrote:
Hi Doug,
On Mon, Oct 21, 2013 at 10:51 AM, Doug Goldstein <cardoe@gentoo.org> wrote:
On Sun, Oct 20, 2013 at 10:14 AM, Ryota Ozaki <ozaki.ryota@gmail.com> wrote:
HW_PHYSMEM is available on Mac OS X as well as FreeBSD, however, its resulting value for Mac OS X is 32 bits. Mac OS X provides HW_MEMSIZE that is 64 bits version of HW_PHYSMEM. We have to use it.
I tested the patch on Mac OS X 10.6.8, 10.7.4, 10.8.5 and FreeBSD 9.2.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> --- src/nodeinfo.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-)
diff --git a/src/nodeinfo.c b/src/nodeinfo.c index 70814c2..a0fdfe7 100644 --- a/src/nodeinfo.c +++ b/src/nodeinfo.c @@ -73,6 +73,33 @@ appleFreebsdNodeGetCPUCount(void)
return ncpu; } + +/* VIR_HW_PHYSMEM - the resulting value of HW_PHYSMEM of FreeBSD + * is 64 bits while that of Mac OS X is still 32 bits. + * Mac OS X provides HW_MEMSIZE for 64 bits version of HW_PHYSMEM + * since 10.6.8 (Snow Leopard) at least. + */ +# ifdef HW_MEMSIZE +# define VIR_HW_PHYSMEM HW_MEMSIZE +# else +# define VIR_HW_PHYSMEM HW_PHYSMEM +# endif +static int +appleFreebsdNodeGetMemorySize(unsigned long *memory) +{ + int mib[2] = { CTL_HW, VIR_HW_PHYSMEM }; + unsigned long physmem; + size_t len = sizeof(physmem); + + if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { + virReportSystemError(errno, "%s", _("cannot obtain memory size")); + return -1; + } + + *memory = (unsigned long)(physmem / 1024); + + return 0; +} #endif
#ifdef __linux__ @@ -914,17 +941,8 @@ cleanup: nodeinfo->mhz = cpu_freq / 1000000; # endif
- /* get memory information */ - int mib[2] = { CTL_HW, HW_PHYSMEM }; - unsigned long physmem; - size_t len = sizeof(physmem); - - if (sysctl(mib, 2, &physmem, &len, NULL, 0) == -1) { - virReportSystemError(errno, "%s", _("cannot obtain memory size")); + if (appleFreebsdNodeGetMemorySize(&nodeinfo->memory) < 0) return -1; - } - - nodeinfo->memory = (unsigned long)(physmem / 1024);
return 0; } -- 1.8.4
-- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
I'd say ACK on this but I'm not sure how the other devs feel about breaking this out into another function with no clear benefit.
The aim of the pull-out is to reduce the complexity of nodeGetInfo. I can separate the patch into two, tidy-up and fix-up, if preferable.
Thanks, ozaki-r
I understand. the nodeGetInfo() at that point is ifdef'd only for FreeBSD and Apple at that point. But I do see another place we've done this in within that function so I don't see a problem merging this. I'll pull this in.
Thanks! ozaki-r
-- Doug Goldstein
participants (2)
-
Doug Goldstein -
Ryota Ozaki