Hi,
On 12/11/2025 10:51, Mykyta Poturai wrote:
This will reduce code duplication for the upcoming cpu hotplug support
on Arm64 patch.
SMT-disable enforcement check is moved into a separate
architecture-specific function.
Signed-off-by: Mykyta Poturai <[email protected]>
v3->v4:
* patch introduced
---
xen/arch/arm/smp.c | 6 ++++++
xen/arch/ppc/stubs.c | 4 ++++
xen/arch/riscv/stubs.c | 5 +++++
xen/arch/x86/include/asm/smp.h | 3 ---
xen/arch/x86/smp.c | 33 +++------------------------------
xen/common/smp.c | 32 ++++++++++++++++++++++++++++++++
xen/include/xen/smp.h | 4 ++++
7 files changed, 54 insertions(+), 33 deletions(-)
diff --git a/xen/arch/arm/smp.c b/xen/arch/arm/smp.c
index b372472188..85815aeda0 100644
--- a/xen/arch/arm/smp.c
+++ b/xen/arch/arm/smp.c
@@ -44,6 +44,12 @@ void smp_send_call_function_mask(const cpumask_t *mask)
}
}
+/* ARM don't have SMT so we don't need any special logic for CPU disabling */
Xen doesn't support SMT on Arm. But some of the cores may support SMT.
So would reword this to:
"We currently don't support SMT"
Cheers,
--
Julien Grall
