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bhyve CPU pinning via range patch
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antranigv_freebsd.am
Thu, Jan 29, 4:17 AM
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bhyve CPU pinning via range patch
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diff --git a/usr.sbin/bhyve/aarch64/bhyverun_machdep.c b/usr.sbin/bhyve/aarch64/bhyverun_machdep.c
index 10018d082f7e..50b765eff64f 100644
--- a/usr.sbin/bhyve/aarch64/bhyverun_machdep.c
+++ b/usr.sbin/bhyve/aarch64/bhyverun_machdep.c
@@ -100,7 +100,8 @@ bhyve_usage(int code)
"Usage: %s [-CDHhSW]\n"
" %*s [-c [[cpus=]numcpus][,sockets=n][,cores=n][,threads=n]]\n"
" %*s [-k config_file] [-m mem] [-o var=value]\n"
- " %*s [-p vcpu:hostcpu] [-r file] [-s pci] [-U uuid] vmname\n"
+ " %*s [-p vcpu:hostcpu] [-p vcpuN-vcpuM:hostcpuX-hostcpuY]\n"
+ " %*s [-r file] [-s pci] [-U uuid] vmname\n"
" -C: include guest memory in core file\n"
" -c: number of CPUs and/or topology specification\n"
" -D: destroy on power-off\n"
@@ -116,7 +117,7 @@ bhyve_usage(int code)
" -U: UUID\n"
" -W: force virtio to use single-vector MSI\n",
progname, (int)strlen(progname), "", (int)strlen(progname), "",
- (int)strlen(progname), "");
+ (int)strlen(progname), "", (int)strlen(progname), "");
exit(code);
}
diff --git a/usr.sbin/bhyve/amd64/bhyverun_machdep.c b/usr.sbin/bhyve/amd64/bhyverun_machdep.c
index 538d031fd1a4..32f99aedb7f2 100644
--- a/usr.sbin/bhyve/amd64/bhyverun_machdep.c
+++ b/usr.sbin/bhyve/amd64/bhyverun_machdep.c
@@ -78,7 +78,8 @@ bhyve_usage(int code)
"Usage: %s [-aCDeHhPSuWwxY]\n"
" %*s [-c [[cpus=]numcpus][,sockets=n][,cores=n][,threads=n]]\n"
" %*s [-G port] [-k config_file] [-l lpc] [-m mem] [-o var=value]\n"
- " %*s [-p vcpu:hostcpu] [-r file] [-s pci] [-U uuid] vmname\n"
+ " %*s [-p vcpu:hostcpu] [-p vcpuN-vcpuM:hostcpuX-hostcpuY]\n"
+ " %*s [-r file] [-s pci] [-U uuid] vmname\n"
" -a: local apic is in xAPIC mode (deprecated)\n"
" -C: include guest memory in core file\n"
" -c: number of CPUs and/or topology specification\n"
@@ -108,7 +109,7 @@ bhyve_usage(int code)
" -x: local APIC is in x2APIC mode\n"
" -Y: disable MPtable generation\n",
progname, (int)strlen(progname), "", (int)strlen(progname), "",
- (int)strlen(progname), "");
+ (int)strlen(progname), "", (int)strlen(progname), "");
exit(code);
}
diff --git a/usr.sbin/bhyve/bhyverun.c b/usr.sbin/bhyve/bhyverun.c
index 9db62972467c..9bde49f5039b 100644
--- a/usr.sbin/bhyve/bhyverun.c
+++ b/usr.sbin/bhyve/bhyverun.c
@@ -356,18 +356,12 @@ calc_topology(void)
guest_ncpus = ncpus;
}
-int
-bhyve_pincpu_parse(const char *opt)
+static int
+bhyve_pincpu(int vcpu, int pcpu)
{
const char *value;
char *newval;
char key[16];
- int vcpu, pcpu;
-
- if (sscanf(opt, "%d:%d", &vcpu, &pcpu) != 2) {
- fprintf(stderr, "invalid format: %s\n", opt);
- return (-1);
- }
if (vcpu < 0) {
fprintf(stderr, "invalid vcpu '%d'\n", vcpu);
@@ -394,6 +388,34 @@ bhyve_pincpu_parse(const char *opt)
return (0);
}
+int
+bhyve_pincpu_parse(const char *opt)
+{
+ int vcpu_first, vcpu_last, pcpu_first, pcpu_last;
+ int vcpu, pcpu;
+
+ if (sscanf(opt, "%d-%d:%d-%d", &vcpu_first, &vcpu_last, &pcpu_first, &pcpu_last) == 4) {
+ if (vcpu_first > vcpu_last || pcpu_first > pcpu_last) {
+ fprintf(stderr, "invalid range (must be ascending): %s\n", opt);
+ return (-1);
+ }
+ if ((vcpu_last - vcpu_first) != (pcpu_last - pcpu_first)) {
+ fprintf(stderr, "range sizes do not match: %s\n", opt);
+ return (-1);
+ }
+ for (vcpu = vcpu_first, pcpu = pcpu_first; vcpu <= vcpu_last; vcpu++, pcpu++)
+ if (bhyve_pincpu(vcpu, pcpu) != 0)
+ return (-1);
+ return (0);
+ }
+
+ if (sscanf(opt, "%d:%d", &vcpu, &pcpu) == 2)
+ return bhyve_pincpu(vcpu, pcpu);
+
+ fprintf(stderr, "invalid format: %s\n", opt);
+ return (-1);
+}
+
static void
parse_cpuset(int vcpu, const char *list, cpuset_t *set)
{
diff --git a/usr.sbin/bhyve/riscv/bhyverun_machdep.c b/usr.sbin/bhyve/riscv/bhyverun_machdep.c
index a90a508901bc..55e28d54ed11 100644
--- a/usr.sbin/bhyve/riscv/bhyverun_machdep.c
+++ b/usr.sbin/bhyve/riscv/bhyverun_machdep.c
@@ -95,7 +95,8 @@ bhyve_usage(int code)
"Usage: %s [-CDHhSW]\n"
" %*s [-c [[cpus=]numcpus][,sockets=n][,cores=n][,threads=n]]\n"
" %*s [-k config_file] [-m mem] [-o var=value]\n"
- " %*s [-p vcpu:hostcpu] [-r file] [-s pci] [-U uuid] vmname\n"
+ " %*s [-p vcpu:hostcpu] [-p vcpuN-vcpuM:hostcpuX-hostcpuY]\n"
+ " %*s [-r file] [-s pci] [-U uuid] vmname\n"
" -C: include guest memory in core file\n"
" -c: number of CPUs and/or topology specification\n"
" -D: destroy on power-off\n"
@@ -110,7 +111,7 @@ bhyve_usage(int code)
" -U: UUID\n"
" -W: force virtio to use single-vector MSI\n",
progname, (int)strlen(progname), "", (int)strlen(progname), "",
- (int)strlen(progname), "");
+ (int)strlen(progname), "", (int)strlen(progname), "");
exit(code);
}

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bhyve CPU pinning via range patch (4 KB)

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