ACPI builder marks VCPUS set in vcpu_online map as enabled in MADT.
With ACPI-based CPU hotplug we only want VCPUs that are started by
the guest to be marked as such. Remaining VCPUs will be set to
"enable" by AML code during hotplug.
Signed-off-by: Boris Ostrovsky <boris.ostrov...@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Acked-by: Wei Liu <wei.l...@citrix.com>
---
tools/libxl/libxl_x86_acpi.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/libxl/libxl_x86_acpi.c b/tools/libxl/libxl_x86_acpi.c
index ff0e2df..949f555 100644
--- a/tools/libxl/libxl_x86_acpi.c
+++ b/tools/libxl/libxl_x86_acpi.c
@@ -98,7 +98,7 @@ static int init_acpi_config(libxl__gc *gc,
uint32_t domid = dom->guest_domid;
xc_dominfo_t info;
struct hvm_info_table *hvminfo;
- int i, rc = 0;
+ int rc = 0;
config->dsdt_anycpu = config->dsdt_15cpu = dsdt_pvh;
config->dsdt_anycpu_len = config->dsdt_15cpu_len = dsdt_pvh_len;
@@ -144,8 +144,8 @@ static int init_acpi_config(libxl__gc *gc,
hvminfo->nr_vcpus = info.max_vcpu_id + 1;
}
- for (i = 0; i < hvminfo->nr_vcpus; i++)
- hvminfo->vcpu_online[i / 8] |= 1 << (i & 7);
+ memcpy(hvminfo->vcpu_online, b_info->avail_vcpus.map,
+ b_info->avail_vcpus.size);
config->hvminfo = hvminfo;
--
2.7.4
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