71 lines
2.2 KiB
Diff
71 lines
2.2 KiB
Diff
|
From 33aa02dc05bed8316b1c64131e8269f404287598 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Xiang Chen <chenxiang66@hisilicon.com>
|
||
|
|
Date: Tue, 15 Apr 2025 20:10:50 +0800
|
||
|
|
Subject: [PATCH] target/arm: Change arm_cpu_mp_affinity when enabled IPIV
|
||
|
|
feature
|
||
|
|
|
||
|
|
virt inclusion
|
||
|
|
category: feature
|
||
|
|
bugzilla: https://gitee.com/openeuler/qemu/issues/IC1EV7
|
||
|
|
|
||
|
|
---------------------------------------------------------------
|
||
|
|
|
||
|
|
Before IPIV feature, it gets mpidr from vcpu id, but after
|
||
|
|
the feature, we need to know whether IPIV is enabled.
|
||
|
|
|
||
|
|
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
|
||
|
|
---
|
||
|
|
linux-headers/linux/kvm.h | 2 ++
|
||
|
|
target/arm/cpu.c | 22 +++++++++++++++++++---
|
||
|
|
2 files changed, 21 insertions(+), 3 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
|
||
|
|
index b94c5fd90f..a9d407eace 100644
|
||
|
|
--- a/linux-headers/linux/kvm.h
|
||
|
|
+++ b/linux-headers/linux/kvm.h
|
||
|
|
@@ -1205,6 +1205,8 @@ struct kvm_ppc_resize_hpt {
|
||
|
|
|
||
|
|
#define KVM_CAP_SEV_ES_GHCB 500
|
||
|
|
#define KVM_CAP_HYGON_COCO_EXT 501
|
||
|
|
+
|
||
|
|
+#define KVM_CAP_ARM_IPIV_MODE 503
|
||
|
|
/* support userspace to request firmware to build CSV3 guest's memory space */
|
||
|
|
#define KVM_CAP_HYGON_COCO_EXT_CSV3_SET_PRIV_MEM (1 << 0)
|
||
|
|
/* support request to update CSV3 guest's memory region multiple times */
|
||
|
|
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
|
||
|
|
index 09d391bd34..b0f70de018 100644
|
||
|
|
--- a/target/arm/cpu.c
|
||
|
|
+++ b/target/arm/cpu.c
|
||
|
|
@@ -1324,9 +1324,25 @@ static void arm_cpu_dump_state(CPUState *cs, FILE *f, int flags)
|
||
|
|
|
||
|
|
uint64_t arm_cpu_mp_affinity(int idx, uint8_t clustersz)
|
||
|
|
{
|
||
|
|
- uint32_t Aff1 = idx / clustersz;
|
||
|
|
- uint32_t Aff0 = idx % clustersz;
|
||
|
|
- return (Aff1 << ARM_AFF1_SHIFT) | Aff0;
|
||
|
|
+ uint64_t Aff0 = 0, Aff1 = 0, Aff2 = 0, Aff3 = 0;
|
||
|
|
+ int mode;
|
||
|
|
+
|
||
|
|
+ if (!kvm_enabled()) {
|
||
|
|
+ Aff1 = idx / clustersz;
|
||
|
|
+ Aff0 = idx % clustersz;
|
||
|
|
+ return (Aff1 << ARM_AFF1_SHIFT) | Aff0;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ mode = kvm_check_extension(kvm_state, KVM_CAP_ARM_IPIV_MODE);
|
||
|
|
+ if (mode) {
|
||
|
|
+ Aff1 = idx % 16;
|
||
|
|
+ Aff2 = idx / 16;
|
||
|
|
+ } else {
|
||
|
|
+ Aff1 = idx / clustersz;
|
||
|
|
+ Aff0 = idx % clustersz;
|
||
|
|
+ }
|
||
|
|
+ return (Aff3 << ARM_AFF3_SHIFT) | (Aff2 << ARM_AFF2_SHIFT) |
|
||
|
|
+ (Aff1 << ARM_AFF1_SHIFT) | Aff0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void arm_cpu_initfn(Object *obj)
|
||
|
|
--
|
||
|
|
2.41.0.windows.1
|
||
|
|
|